curriculum vitae - faculty of...
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Curriculum Vitae
Prof. H.M.T.G.A. Pitawala
Present Position Director
Postgraduate Institiute of Science
University of Peradeniya
Telephone: Office - 081-2387218 Residence +94814921396
Mobile -009477 6052847 or 0094703215056
Fax: 081-2389026
Email: [email protected] and [email protected]
1. Higher Education
Ph.D.(DistinctionPass) JohannesGutenbergUniversity and Max-Planck Institute, Mainz, Germany-
(1995-1999), Thesis title : The apatite-bearing marbles of Eppawala, Sri Lanka: petrographic and
geochemical evidence for a carbonatitic origin
MPhil,University of Peradeniya, Sri Lanka (1993 – 1995), Thesis title: Muthuirajawela peat- its
geochemical attributes and the potentail to acidulate Eppawala apatite
B.Sc. (Special in Geology, First Class) - 1992, University of Peradeniya, Sri Lanka
Note: All the universities in Sri Lanka were closed due to unsettled political atmosphere during 1987-
1990. As a result, four years of university education was lost during this period.
2. Scholarships and Fellowships
Endeavour fellowship, James Cook University, Australia (May to November, 2008)
DAAD fellowship, GeoforschungZentrum, Potsdam, Germany (November to December, 2004)
IDRC research studentship, Institute of Fundamental Studies, Sri Lanka (January 1993 to March 1995)
University Scholarship for the best result in Special Science Degree in 1992
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3. Awards
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“Ananda Coomaraswamy Medal-2018 conferred by the Geological Society of Sri Lanka for the
outstanding contribution on exploring geology of Sri Lank
Presidential awards -2012, 2011, 2010, 2015SUSRED (Support Scheme for Supervision of Research
Degrees)
NRC Merit award – 2010, 2015
Endeavour award for the research work carried out at James Cook University, Australia
Cooray Middle from Geological Society of Sri Lanka for research work carried out during 1999 and
2000 in 2001a
4. Positions Held and Professional Memberships
Director, Postgraduate Institute of Science, 2019 March to date
Acting Director, Postgraduate Institute of Science, 2018 January to 2019 March
Chairman, Board of Study in Earth Sciences, Postgraduate Institute of Science, 2016 to date
Member of the Presidential adversary committee for mineral resources 2016 to to-date
Member of the national disaster management committee, Sri Lanka, 2018
Chairman, Curriculum Revision Committee, Faculty of Science, University of Peradeniya
Editor, Institute of Geology, Sri Lanka, 2017 to date
President, Geological Society of Sri Lanka, 2014
Council Member, Institute of Geology, Sri Lanka, 2014 to2018
Head, Department of Geology, University of Peradeniya (from July 2010 – July 2013)
Member, Sri Lankan Earth Science Olympiad Committee, 2010 to date
Council Member, International Geoscience Education Organization
Member, Board of Study in Environmental Science, Postgraduate Institute of Science, from April 2011
to date
President, Science Teachers Association, University of Peradeniya, 2010
Acting Coordinator, Applied Sciences Programme, Faculty of Science, University of Peradeniya
(2010 and 2011)
Deputy Coordinator, Applied Sciences Programme, Faculty of Science, University of Peradeniya
(from 2009 until 2010)
Second Examiner, Faculty of Applied Sciences, South Eastern University, Sri Lanka from 2007 to
date
Senior Student Counsellor, Faculty of Science, University of Peradeniya, from 2005 to 2008
Secretary, Board of Study in Earth Sciences, Postgraduate Institute of Science, University of
Peradeniya, from August, 2004 to date
Member of the University Convocation Committee –2006, 2007, 2008
Member of the Approving Committee of the Central Environmental Authority, Central Province,
2005-2010
Member of Committee, Implementation of landslide mitigation works, 2003
Coordinator, M.Sc. Programme in Oceanography, Postgraduate Institute of Science, University of
Peradeniya, from July 2000 – December 2004
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Member, Course Unit Committee, Faculty of Science, 2000 to 2004 and 2010 to date
Treasurer, Geological Society of Sri Lanka, 2001
Member, Board of Study in Earth Sciences, Postgraduate Institute of Science since April, 2000
Senior Treasurer, University of Peradeniya Geological Society since 2000
Member,Sri Lanka Association for the Advancement of Science, 1992
Member, Geological Society of Sri Lanka since 1992
5. Professional Career
January, 2013 to date Professor in Geology, Department of Geology, University of
Peradeniya,
June-July, 2016 Visiting Researcher, Free University, Berlin, Germany
June 2015 Visiting Researcher, Free University, Berlin, Germany
July, 2014 Visiting Researcher, Centre for Earth Sciences, Indian Institute of
Science,Bangalore, India
June 2014 Visiting Researcher, Free University, Berlin, Germany
April, 2006 to 2012 Senior Lecturer Grade I, Department of Geology, University of
Peradeniya,
January, 2000 to date Vising Lecturer, Postgraduate Institute of Science, University of
Peradeniya
April to November, 2008 Visiting Scholar (on sabbatical leave), James Cook University,
Australia,
2000 to 2008 Visiting Lecturer, Faculty of Applied Sciences, RajarataUniversity
of Sri Lanka,
2001 to 2009 Visiting Lecturer, Department of Geography, University of
Peradeniya
November toDecember, 2005 Research Fellow, (on sabbatical leave) GeoForschungsZentrum,
Potsdam, Germany
July, 1999 to April, 2006 Senior Lecturer Grade II, Department of Geology, University of
Peradeniya
May 1999 to June 1999 Lecturer, Department of Geology, University of Peradeniya
September, 1995 to April, 1999 Research Student, Max-Planck Institute for Chemistry, Mainz,
Germany
January, 1993 to April, 1995 Research Assistant, Institute of Fundamental Studies, Sri Lanka
June to December 1992 Assistant Lecturer, Department of Geology, University of
Peradeniya
6. Research Profile
6.1. Major research interests
Studies on contamination of groundwater, surface water and soils of Sri Lanka
Petrogenesis of carbonatites of Sri Lanka
Geochemistry of weathering of carbonatites and other igneous rocks of Sri Lanka
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Geochemistry and provenance of stream sediments, tsunami sediments and gem sediments of Sri
Lanka
Use of carbonate rocks, pegmatites and secondary deposits (e.g. red clay, iron ore, phosphate deposits)
of Sri Lanka for the mineral industry
Studies on paleoenvironment and paleoclimate of historical sites of Sri Lanka
6.2 Other Training: Worked as a geologist
1. Geological mapping for Moragahakande and Kaluganga Projects, 2010-2012,
2. Geological Exploration of Ragedara graphite deposit – 2010 – 2011
3. EIA studies for mini-hydropower projects , housing schemes, tourist hotels, sand mining projects and
rock quarrying ( more than 25 studies) – since 2004
4. Exploration of high quality construction materials (hard-rocks) for the construction of Hambanthota
airport - 2009
5. Exploration of sand deposits in Sri Lanka – 2014 to present
6.3 Research Grants
See detailed table of grants at the end of this document.
7. Graduate Student Supervision
Completed
Number of M.Sc students - 10 (100 percent supervision)
Number of M.Sc students -8 (50 percent supervision)
M.Phil students (i) Ms. THNG Amaraweera
(ii) Ms. SM Young
(iii) P Hettiarachchi
(iv) AS Welagedara
(v) HMD Herath
(vi) Ms. AMDS Karunaratne
(vii) Mr. HPTS Hewathilake
(viii) Ms. RMNM Rathnayake
(ix) Ms. Praveena Weerasekara
Ph.D. students
(i) Dr. DT Jayawardhane
(ii) Dr. SM Young
(iii) Dr. Pathmakumara Jayasingha
(iv) Dr. MMMGPG Mantilaka
(v) Dr. A.Wijenayake
(vi) Dr. N Madugalle
(vii) Dr. V Edirisinghe
(viii) Dr. M Adikaram
(ix) Dr. Piyal Aravinna
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nearly completing
Mr. N Sumanadasa
At Present
M.Sc students-2 (100 percent supervision)
M.Phil students (i) Mr. EKCW Kularathna
(ii) Mr. C Seneviratne
(iii) Mr. N Jayasinghe
(iv) Mr. RMM Ratnayeke
(v) Mr. WKDGDR Charles
(vi) Ms. TC Senevirathna
(vii) Mr. WMGK Wickramasinghe
(viii) Ms. Prabodha Weerarathne
(ix) Ms. Nadeesha Tilakarathna
Ph.D. students (i) Mr. N.Gunawardhane
(ii) Mr. SPK Kohobhange
(iii) Mr. Ratha Pork
8. Contribution to National Development
Investigation on the applications of gravel deposits in the Sabaragamuwa Province, Sri Lanka
Geological investigations in the area along right bank of the proposed Moragahakanda reservoir for
the Mahaweli Development Authority of Sri Lanka
Combined geological and geophysical investigations of level crossing no.1 at Rawanagama for the
Mahaweli Development Authority of Sri Lanka
Geological investigations around Kaluganga project area for Central Engineering Consultancy
Bureau, Sri Lanka
Petrographic studies on rock aggregates used for the Hambantota airport
Geological, petrological and Geophysical investigations in order to identify mining potential of vein-
type graphite deposits at Ragedara, Sri Lanka
Geological investigation on paleo sand deposits in Sri Lanka
Referees
Prof. H.A. Dharamagunawardhane, Professor in Geology,Department of Geology, University of
Peradeniya, Peradeniya, Tel: (9481)2394212
Prof. Dr. Brigitta Schütt Professor in Geography, Fachbereich Geowissenschaften,Freie Universität
Berlin, Germany, Tel (+49 30) 838 - 70 479, Fax (+49 30) 838 - 458711E-mail:brigitta.schuett@fu-
berlin.de
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H. Ishiga, Department of Geoscience, Graduate School of Science and Engineering, Shimane University,
1060 Nishikawatsu-cho, Matsue 690-8504, Japan.Tel: +81 852326459, Fax: +81 852326469,
Email:[email protected]
Research Publications
9.1. Papers published in refereed journals 1. Pitawala A, Senaratne A, Dahanayake K (1994) Sulfate- induced high acidity in a peatland: An
example from Muthurajawela, Journal National Science Council, Sri Lanka 22 (4)339-349.
2. Pitawala A, Wijeratne CNB (2002) Some urban problems of Matale town. UDA Journal 3(3) 47-
48.
3. Pitawala A, Schidlowsi M, Dahanayake K, Hofmeister W (2003) Geochemical and
petrologicalcharacteristics of Eppawala phosphate deposits, Sri Lanka, MineraiumDeposita
38:505-515.
4. Pitawala A, Amaraweera THNG, Fernando GWAR, Hauzenberger CA (2008) Pegmatites Derived
from Fractionation of a Melt: an Example from Pegmatites in the Owala-Kaikawala area, Matale,
Sri Lanka. Journal of the Geological Society of India. 72 (6): 815-822.
5. Young SM, Pitawala A, Gunatilake J (2009) Fate of Phosphate and Nitrate in Waters of An
Intensive Agricultural Area In The Dry Zone of Sri Lanka. Paddy and Water Environment, 8(1)
71-79.
6. Ratnayake A, Pitawala A (2009) Weathering of Monuments at Jethawanaramaya Complex in
North-Central, Sri Lanka, ActaGeologicaSinica 83 (5) 1024-1030.
7. Pitawala A, (2009) Potential of Graphic Granites of Sri Lanka as Industrial Raw Materials.
Journal of Geological Society of Sri Lanka 13: 1-7.
8. Pitawala A, Fernando, GWAR, Weerasinghe C. (2009) Chemical and structural changes of biotite
during preparation of Ayurvedic medicine. Journal of Geological Society of Sri Lanka, 13:15-22.
9. Young SM, Pitawala A, Gunatilake J. (2009) Effect of the agricultural practices on chemical
quality of water in Kala Oya river basin. Journal of Geological Society of Sri Lanka, 13: 97-104.
10. Pathirana CK, Abeyruwan H, Pitawala HMTGA, Somaratna APN (2010) An approach to grade
aggregates having mild potential alkali - silica reactivity, ENGINEER - Vol. XXXXIII, No. 03,38-
43.
11. Jayawardana DT, Pitawala HMTGA, Ishiga H (2010) Groundwater quality in different climatic
zones of Sri Lanka: focus on the occurrence of fluoride, International Journal of Environmental
Science and Development, 1(3)244-250.
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12. Hettiarachchi P, Motha JTS, Pitawala HMTGA ((2010) Identification of an appropriate body
composition for red clay products, Cerâmica, 56: 285-290.
13. Sansfica M. Young, Pitawala A, Ishiga H (2010) Factors controlling fluoride contents of
groundwater in North-Central and Northwestern Sri Lanka, Environmental Earth Sciences
63(6)1333-1342.
14. Pathmakumara J, Pitawala A, Dharmagunawardhane HA (2011)Vulnerability of coastal aquifers
due to nutrient pollution from agriculture: Kalpitiya, Sri Lanka, Water Air and Soil Pollution,
63(6)1333-1342.
15. Fernando GWAR, Pitawala A, Amaraweera THNG (2011) Emplacement and evolution history of
pegmatites and hydrothermal deposits, Matale district, Sri Lanka, International Journal of
Geosciences, 2, doi:10.4236/ijg.2011.23037.
16. Jayawardana DT, Pitawala HMTGA, Ishiga H (2011) Chemical stability relations of sediments
and water in tsunami affected Sri Lankan lagoons and their consequences with groundwater
chemistry, Journal of Geological Society of Sri Lanka 14:71-80.
17. Dharmagunawardhane HA, Pitawala A, Welagedara AS (2011) Some observations on post
tsunami natural groundwater quality recovery processess in the West coast of Sri Lanka, Journal
of Geological Society of Sri Lanka 14:35-40
18. Jayawardana DT, Pitawala HMTGA, Ishiga H (2012) Geochemistry of surface sediments in
tsunami-affected Sri Lankan lagoons and environmental implications, International Journal of
Environmental Science and Technology 9:41-55.
19. Pitawala A, Lottermoser BG (2012) Petrogenesis of the Eppawalacarbonatites, Sri Lanka: A
cathodoluminescence and electron microprobe study, Mineralogy and Petrology 105:57-70.
20. Jayawardana DT, Pitawala HMTGA, Ishiga H (2012) Geochemical assessment of soils in districts
of fluoride-rich and fluoride-poor groundwater, north-central Sri Lanka, Journal of Geochemical
Exploration,114:118-12.
21. Kularatne KUKS, Pitawala HMTGA (2012) Leaching of fluoride from biotite mica in soil:
implications for fluoride in shallow groundwater, ISRN Soil Science doi:10.5402/2012/739051.
22. Jayasingha P, Pitawala A, Dharmagunawardhane, HA (2012) A Review on Nutrient Pollution of
Coastal Aquifers of Sri Lanka (eds. Subramanian, V) Springer and Capital Publishing Companies,
66-77 ISBN 978-90-481-3001-6.
23. Sansfica M. Young, Pitawala A, Ishiga(2012) Geochemical characteristics of stream sediments,
sediment fractions, soils, and basement rocks from the Mahaweli River and its catchment, Sri
Lanka, Chemie der Erde, http://dx.doi.org/10.1016/j.chemer.2012.09.003
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24. Jayawardana DT, Pitawala HMTGA, Ishiga H (2012) Geochemical assessment of arsenic and
selected trace elements in agricultural and non-agricultural soil in Sri Lanka, Tropical Agriculturist
160:1-19
25. Mantilaka, MMMGPG, Karunaratne DGGP, Rajapakse RMG, Pitawala HMTGA (2012)
Precipitated calcium carbonate/poly(methyl methacrylate) nanocompositeusing dolomite:
synthesis, characterization and investigation of properties, Powder Technology 235:628-632.
26. Pitawala HMTGA, Herath HMD, Piyatunga HAND (2013) Chemical characterization of
household dust in two major cities located in the coastal area and central Sri Lanka, Carpathian
Journal of Earth and Environmental Sciences 8 (2) 89-95.
27. Pathmakumara Jayasingha, Pitawala A, Dharmagunawardhana HA (2013)Fate of urea fertilizers
in sandy aquifers of Kalpitiya; A laboratory simulation, Journal of the National Science
Foundation of Sri Lanka 41(2):121-129
28. Pitawala HMTGA, Karunaratne DGGP, Silva. N (2013) Removal of aqueous phosphate and
phenol by adsorption on clayey peat, laterite and red earth, Journal of Geological Society of Sri
Lanka 15, 57-67
29. Madugalla TBNS, Mantilaka, MMMGPG, Karunaratne DGGP, Rajapakse RMG, Pitawala
HMTGA (2013) Effect of magnesium ions on synthesis of precipitated calcium carbonate: focused
to Sri Lankan dolomitic marble, Journal of Geological Society of Sri Lanka,15, 85-92
30. Madugalla TBNS, Pitawala A, Karunaratne DGGP (2014) Use of Carbonatites in the Production
of Precipitated Calcium Carbonate: A Case Study from Eppawala, Sri Lanka, Natural Resources
Research, 23 (2) 217-229
31. Jayawardana DT, Pitawala HMTGA, Ishiga H (2013) Assessment of soil geochemistry around
some selected agricultural sites of Sri Lanka, Environmental Earth Sciences, DOI 10.1007/s12665-
013-2798-9
32. Mantilaka, MMMGPG, Karunaratne DGGP, Rajapakse RMG, Pitawala HMTGA (2013)
Preparation of amorphous calcium carbonate nanoparticles from impure dolomitic marble with the
aid of poly(acrylic acid) as a stabilizer, Advanced Powder Technology 10.1016/j.apt.2013.09.008
33. Pathmakumara Jayasingha, Pitawala A, Dharmagunawardhana HA (2013) Evolution of coastal
sandy aquifer system in Kalpitiya peninsula, Sri Lanka; sedimentalogical and geochemical
approach, Environmental Earth Sciences, 71(11) 4925-4937.
34. Young SM, Ishiga H, Roser BP, Pitawala A, (2014) Geochemistry of sediments in three sectors of
Trincomalee Bay, Sri Lanka: Provenance, modifying factors, and present environmental status,
Journal of Soils and Sediments, 14 (1) 204-217
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35. Mantilaka, MMMGPG, Pitawala, HMTGA, Karunaratne DGGP, Rajapakse RMG Nanocrystalline
magnesium oxide from dolomite via poly(acrylic acid) stabilized magnesium hydroxide colloids,
Colloids and Surfaces A: Physicochemical and Engineering Aspects,
10.1016/j.colsurfa.2013.11.020)
36. Senarathnaa KGC, Mantilakaa MMMGPG, Peiris TAN, Pitawala HMTGA, KarunaratneDGGP,
Rajapaksea, RMG (2013)Nanocomposites of alkyd resin/polyaniline/vaterite with superior
anticorrosive performance on stainless steel surfaces, ElectrochimicaActa117(C):460-469.
37. Aravinna, APG, Priyantha, N. Pitawala, HMTGA. Yatigammana, SK (2013) Seasonal Variations
of Water Quality of Downstream Catchment of River Mahaweli, International Journal of
Biological Sciences and Engineering 4(4) 111-120
38. Mantilaka MMMGPG, Pitawala, HMTGA, Rajapakse RMG,Karunaratne DGGP UpulWijayantha
KG (2014) Formation of hollow bone-like structures of calcium carbonate on surfactant/polymer
templates, Journal of Crystal Growth392(C):52-59
39. MMMGPG Mantilaka, WPSL Wijesinghe, HMTGA Pitawala, RMG Rajapakse, DGGP
Karunaratne(2014) Surfactant-assisted synthesis of pure calcium carbonate nanoparticles from Sri
Lankan dolomite , Journal of the National Science Foundation of Sri Lanka,42 (3)221-228.
40. Ratnayake A, Pitawala A (2014) Prediction of Ungauged River Basin for Hydropower Potential
and Flood Risk Mitigation; a Case Study at Gin River, Sri Lanka", Interdisciplinary Environmental
Review, 15(4)203-214
41. Edirisinghe EANV, Pitawala HMTGA, Dharmagunawardhane HA, Wijayawardane RL (2014),
Isotopic Variations in Natural Water and Groundwater Recharge Conditions in the Kalaoya Basin,
Sri Lanka. Ceylon Journal of Science (Physical Sciences) 18:9-18.
42. Wijenayake A, Pitawala A, Abayasekara C Bandara, R (2014)The role of
herbometallicperparations in traditional medicine - a review on mica drug processing ,Journal of
Ethnopharmacology, http://dx.doi.org/10.1016/j.jep.2014.06.051
43. Udagedara T, Pitawala HMTGA, Dharmagunawardhane HA (2014)Use of Heavy Metals and
Trace Elements in Groundwater as a Tool for Mineral Exploration: A Case Study from
Udawalawe, Sri Lanka, Asian Journal of Water, Environment and Pollution, 11(4)59-67.
44. Jayawardana DT, Pitawala HMTGA, Ishiga H (2015) Geochemical evidence for the accumulation
of vanadium in soils of chronic kidney disease areas in Sri Lanka, Environmental Earth Sciences
73 (9) 5415-5424
45. Madugalla TBNS, Pitawala HMTGA., Naumann R, R.B. Trumbull RB (2015)Hydrothermal mica
deposits in altered meta-ultrabasites from north-central Sri Lanka, Journal of Geochemical
Exploration, 153, 66-78
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46. Hettiarachchi, P, WickramasingheArachchi RC, Pitawala HMTGA (2015) Fluxing effect of
granite on red clay body composition: a comparison study with feldspar, Journal of Geological
Society of Sri Lanka, 16, 101-108
47. Madugalla TBNS. and Pitawala HMTGA (2015), Calcite deposits associated with marble in the
Balangoda area, Sri Lanka, Recent contribution to the Geology of Sri Lanka-Excursion Guide ,
vol 10, 25-29
48. Pathmakumara Jayasingha, Pitawala, A, Dharmagunawardhana, HA. (2015) Phosphate mobility
and retention in sandy agricultural soil of Kalpitiya, Sri Lanka (Surface and Sub-surface Water in
Asia - Issues and Perspectives) Edited by V. Subramanian, pp72 – 98
49. Adikaram AMNM, Pitawala HMTGA, Ishiga H, D.T. Jayawardhane DT (2015) Taphonomy of
recent burrows from eastern coast, Sri Lanka, Journal of Geological Society of Sri Lanka, 17, 11-
1
50. Hewathilake HPTS, Balasooriya NWB, Pitawala HMTGA, Wijayasinghe HWMAC (2015) Use
of crystal morphologies to unravel the origin of vein graphite in Sri Lanka, Journal of Geological
Society of Sri Lanka, 17, 65-73
51. Adikaram, AMNM., Pitawala, HMTGA. and Jayawardhane, DT. (2015) Grain Size
Characterization of Lagoon estuarine System: Eastern Coast, Sri Lanka, International Journal of
Science and Research (IJSR), 4(5) 3087-3094
52. Kularathna EKCW, Pitawala HMTGA, A. Senaratne, Senevirathne, BSMCK and Weerasinghe,
DA (2015) Forced-fold structures in the Mannar basin, Sri Lanka: modes of occurrence,
development mechanism and contribution for the petroleum system, Journal of Geological Society
of Sri Lanka, 17, 53-63
53. Sumanadasa, PDNS. Pethiyagoda, AUB. Ranasinghe JGS., Pitawala HMGTA (2015) Influence of
organic matter and preexisting cavitations of urinary stones on the success rate of extracorporeal
shock wave lithotripsy, International Journal of Analytical, Pharmaceutical and Biomedical
Sciences, 4 (7) 28-39
54. Madurya Adikaram, Amarasooriya Pitawala, Hiroaki Ishiga o Daham Jayawardana (2016) Spatial
distribution, enrichment, and source of environmentally important elements in Batticaloa lagoon,
Sri Lanka, Environmental Science and Pollution Research, pp 1-11
55. Edirisinghe EANV, Karunarathne GRR, Samarakoon ASMNB, Pitawala HMTGA,
Dharmagunawardhane HA, Tilakarathna IANDP (2016), Assessing causes of quality deterioration
of groundwater in Puttalam, Sri Lanka, using isotope and hydrochemical tool, Isotopes in
Environmental & Health Studies, 52 (4-5), 513-528
56. Somarathna YR, Mantilaka MMMGPG, Karunaratne DGGP, Rajapakse RMG, Pitawala HMTGA,
Upul Wijayantha KG (2016) Synthesis of high purity calcium carbonate micro- and nano-
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structures on polyethylene glycol templates using dolomite, Crystal Research and Technology,
DOI 10.1002/crat.201500190
57. Jayawardana, DT. Udagedara,AAMP. Silva,. Pitawala, HMTGA, Jayathilaka WKP, Adikaram
AMNM (2016), Mixing geochemistry of cold water around non-volcanic thermal springs in high-
grade metamorphic terrain, Sri Lanka, Chemie der Erde - Geochemistry76 (4) 555-565
58. Aravinna P, Priyantha N, Pitawala A, Yatigammana SK (2016) Use pattern of pesticides and their
predicted mobility into shallow groundwater and surface water bodies of paddy lands in Mahaweli
river basin in Sri Lanka. J Environ Sci Health B, 18:1-11
59. . Wijenayake, AU,. Abayasekara CL, Pitawala,HMTGA, Bandara BMR (2016) Antimicrobial
potential of two traditional herbometallic drugs against certain pathogenic microbial species,
BMC Complementary and Alternative Medicine,16, 365 DOI:10.1186/s12906-016-1336-1
60. Herath, D., Pitawala, A. and Gunatilake, J (2016). Heavy metals in road deposited sediments and
road dusts of Colombo Capital, Sri Lanka. Journal of the National Science Foundation of Sri
Lanka. 44(2),193-202
61. R.M.N.M. Rathnayakea, H.W.M.A.C. Wijayasinghea, H.M.T.G.A. Pitawala, Masamichi
Yoshimurac, Hsin-Hui Huang (2017) Synthesis of graphene oxide and reduced graphene oxide by
needle platy natural vein graphite, Synthesis of graphene oxide and reduced graphene oxide by
needle platy natural vein graphite, Applied Surface Science, 393 (30) 309-315
62. Madurya Adikaram, Amarasooriya Pitawala, Hiroaki Ishiga, Daham Jayawardhane (2017)
Paleoenvironmental Reconstruction of Quaternary Sedimentation in Eastern Sri Lanka: An
Ichnological Study, Journal of Geological Soc. of India 89 (1) 71-76
63. Wijesinghe WPSL, Mantilaka MMMGPG, Rajapakse RMG, Pitawala, HMTGA, Premachandra,
TM, Herath, Rajapakse TURPVJ, Upul Wijayantha KG (2017) Urea-assisted synthesis of
hydroxyapatite nanorods from naturally occurring impure apatite rocks for biomedical
applications, DOI: 10.1039, RSC Adv., 7, 24806-24812
64. Wagalawatta, T, Bebermeier, W, Hoelzmann, P, Knitter, D Kohlmeyer, K, Pitawala, A, Schütt, B
(2017) Spatial distribution and functional relationship of local bedrock and stone constructions in
the cultural landscape of ancient Anuradhapura (377 BCE-1017 CE), Sri Lanka, Journal of
Archaeological Science: Reports, 13, 382-394
65. Jayaweera, EN, Kumara, GRA, Pitawala, HMTGA Rajapakse, RMG, Gunawardhana, N, Bandara,
HMN, Senarathne, A, Ranasinghe, CSK, Hsin-Hui Huang, Yoshimura M (2017) Vein graphite-
based counter electrodes for dye-sensitized solar cells, Journal of Photochemistry and
Photobiology A: Chemistry, 344, 78-83
66. Edirisinghe EANV, Pitawala HMTGA, Dharmagunawardhane HA , Wijayawardane RL (2017)
Spatial and temporal variation in the stable isotope composition (18O and 2H) of rain across the
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tropical island of Sri Lanka, Isotopes in Environmental and Health Studies,
doi.org/10.1080/10256016.2017.1304936
67. Rathnayake RMNM, Mantilak MMMGPG, Masanori H, Hsin-Hui Huang, Wijayasinghe
HWMAC, M. Yoshimura, Pitawala, HMTGA (2017) Graphite intercalated polyaniline composite
with superior anticorrosive and hydrophobic properties, as protective coating material on steel
surfaces, Applied Surface Science, 410, 445-453
68. Adikaram M, Pitawala HMTGA, Ishiga H, Jayawardhana DT (2017) Paleoenvironmental
reconstruction of quaternary sedimentation in eastern Sri Lanka: An ichnological study, Journal of
the Geological Society of India, 89 (1) 71-76
69. Adikaram M, Pitawala HMTGA, (2017) An overview of heavy metal contamination in coastal
sediments of Sri Lanka, Journal of tropical forestry and environment,
doi.org/10.31357/jtfe.v7i2.3301
70. Wijesinghe, WPSL, Mantilaka, MMGPG, Rajapakse, RMG Pitawala, HMTGA, Premachandra,
TN, Herath, HMTU, Rajapakse RPVJ, Upul Wijayantha KG (2017) Urea-assisted synthesis of
hydroxyapatite nanorods from naturally occurring impure apatite rocks for biomedical applications
RCS Advances, DOI: 10.1039/c7ra02166f
71. Edirisinghe EANV, Pitawala HMTGA, Dharmagunawardhane HA, Wijayawardane, RL (2017)
Geochemical and isotopic evidences from groundwater and surface water for understanding of
natural contamination in Chronic Kidney Disease of unknown etiology (CKDu) endemic zones in
Sri Lanka,Isotopes in Environ.& Health
Studies,http://dx.doi.org/10.1080/10256016.2017.1377704
72. Madugalla TBNS, Pitawala HMTGA, and Manthilake MAG (2017) Primary and secondary
textures of dolomite in Eppawalacarbonatites, Sri Lanka: Implications for the petrogenetic history,
Journal of Geosciences, 62: 187–200
73. Adikaram, AMNM., Pitawala, HMTGA, Ishiga, H., Jayawardhane, DT (2017)I–P2O5 diagrams
as an indicator of depositional environment in marine sediments: preliminary findings (Sri Lanka),
Environmental Earth Science Environmental Earth Sciences 76(24) 817-828
74. Hewathilake, HPTS, Balasooriya, NWB, Nakamura, Y, Pitawala, HMTGA,
Wijayasinghe,HWMAC, Satish-Kumar M (2018) Geochemical, structural and morphological
characterization of vein graphite deposits of Sri Lanka: witness to carbon rich fluid activity,
Journal of Mineralogical and Petrological Sciences, 113 (2) 96-105
75. Dilmi Herath, Amarasooriya Pitawala, Jagath Gunatilake and. Iqbal MCM (2018) Using multiple
methods to assess heavy metal pollution in an urban city, Environmental Monitoring and
Assessment 190(11), DOI: 10.1007/s10661-018-7016-5
13
76. Adikaram, AMNM., Pitawala, HMTGA, Jayawardhane, DT (2018) Coastal evolution and
sediment succession of Sri Lanka: a review on quaternary sea levels, climates and sedimentation
processes, Journal of Geological Society of Sri Lanka 19(2) 1-16
77. Wijesinghe, WPSL, Mantilaka, MMGPG, Rajapakse, RMG Pitawala, HMTGA, Premachandra,
TN, Herath, HMTU, Rajapakse RPVJ, Upul Wijayantha KG (2019) Preparation and
Characterization of Mesoporous Hydroxyapatite with Non-cytotoxicity and Heavy Metal
Adsorption Capacity, New Journal of Chemistry 42(12), DOI: 10.1039/C8NJ00673C
78. Karunadasa, KSP, Manoratne, C, Pitawala HMTGA, Rajapakse RMG (2018) Relative stability of
hydrated/anhydrous products of calcium chloride during complete dehydration as examined by
high-temperature X-ray powder diffraction, Journal of Physics and Chemistry of Solids 120:167-
172
79. Karunadasa, KSP, Manoratne, C, Pitawala HMTGA, Rajapakse RMG (2018) Corrigendum to
“The composition, unit cell parameters and microstructure of quartz during phase transformation
from α to β as examined by in-situ high-temperature X-ray powder diffraction 17 2018Journal of
Physics and Chemistry of Solids, 17;131–138
80. Senevirathna TC, Hewathilake HPTS, Balasooriya NWB, Wijayasinghe HWMAC Pitawala
HMTGA, (2018) Structural modification of Sri Lankan vein graphite using microwave irradiation
technique, Journal of Geological Society of Sri Lanka 19 (1), 11-16
81. Karunadasa, KSP, Manoratne, C, Pitawala HMTGA, Rajapakse RMG (2018) The effect of
prolonged milling time on comminution of quartz, Powder Technology, 330; 266-274
82. Karunadasa KSP, Manoratne CH, Pitawala, HMTGA, Rajapakse RMG (2018) The composition,
unit cell parameters and microstructure of quartz during phase transformation from alpha to beta
as examined by in-situ high-temperature X-ray powder diffraction, Journal of Physics and
Chemistry of Solids 117, 131-13
83. Rathnayakea, RMNM, ,Jayasekara, SK, Huang, HH, Masamichi Yoshimura, H.W.M.A.C.
Wijayasinghea, HWMAC, Ratnayake, RR, Pitawala, HMTGA (2018) Convenient process to
synthesize reduced needle platy graphite silver nanocomposite: A prospective antibiotic against
common pathogenic microorganisms in the environment, Materials Research Express, 5(1) DOI:
10.1088/2053-1591/aaa613 1.
84. Karunadasa KSP, Manoratne CH, Pitawala, HMTGA, Rajapakse RMG (2019) Thermal
decomposition of calcium carbonate (calcite polymorph) as examined by in-situ high-temperature
X-ray powder diffraction, Journal of Physics and Chemistry of Solids 134, 21-28
14
85. Amaratunga, GAJ. Dissanayake, DMSN.. Mantilaka, MMMGPG. Palihawadana, TC
Chandrakumara, GTD De Silva, RT. Pitawala HMTGA, Nalin de Silvaa (2019) Facile and low-
cost synthesis of pure hematite (α-Fe2O3) nanoparticles from naturally occurring laterites and their
superior adsorption capability towards acid-dyes, RSC Advances, 3721249-21257
86. Anoja Senthilnathan, Dissanayake DMSN, Chandrakumara, GTD Mantilaka, MMMGPG
Rajapakse RMG, Pitawala, HMTGA Nalin de Silva (2019) Akaganeite nanorices deposited
muscovite mica surfaces as sunlight active green photocatalyst, Royal Society open science, 6 (3)
182-212
87. Wiebke Bebermeier Nuwan Abeywardana, HMTGA. Pitawala, Brigitta Schütt (2019) Evolution
of the dry zone water harvesting and management systems in Sri Lanka during the Anuradhapura
Kingdom; a study based on ancient chronicles and lithic inscriptions Water History1–29
88. Ratha, P.HMTGA. Pitawala. Nandalal KDW,. Weerakoon SB,., Dharmagunawardhane HA (2019)
Groundwater Contamination Due to Nitrate in a Coastal Aquifer: Conjecture and Identification
Along the West Coast from Katana to Negombo, Sri Lanka, International Journal of Engineering
Research & Technology (IJERT) 8 (06) -905-912
89. Sandun Dissanayake, Prasanga Mantilaka, Rangika De Silva, Pitawala HMTGA, Nalin De Silva,
Gehan Amatratunga (2019) Cost effective, industrially viable production of Fe2O3 nanoparticles
from laterites and its adsorption capability, Materials Research Express 6 (10), 105077
90. Pitawala HMTGA. (2019) Mineralogy, petrography, geochemistry and economic potential of
carbonate rocks of Sri Lanka, Journal of Geological Society of Sri Lanka 20 (1) 1-13
91. .Abeywardena M.R,.Elkaduwa K.W.H.M.K,.Karunarathne, D.G.G.P.Pitawala, H.M.T.G.A
Rajapakse R.M.G.,.Manipura A,.Mantilakaae M.M.M.G.P.G 2019, Surfactant assisted synthesis
of precipitated calcium carbonate nanoparticles using dolomite: Effect of pH on morphology and
particle size Advanced Powder Technology https://doi.org/10.1016/j.apt.2019.10.018
92. Karunadasa KSP, Manoratne, CH Pitawala,H Rajapakse RMG (2019) A potential working
electrode based on graphite and montmorillonite for electrochemical applications in both aqueous
and molten salt electrolytes Electrochemistry Communications 108, 106562
15
93. . Chandrakumara KMNSGT.. Dissanayake, DMSN Mantilake, MMMGPG Pitawala HMTGA and
de Silva KMN (2019) Eco-Friendly, Green Packaging Materials from Akaganeite and Hematite
Nanoparticle-Reinforced Chitosan Nanocomposite Films Journal of Nanomaterials (Article ID
1049142), 1-11
Under review
94. Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardhane, D.T., Chemical
composition of suspended particulate matter in the peripheral environments of a tropical semi-
enclosed lagoon: delineate the impact of microorganisms, Regional Studies in Marine Science
95. Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardhane, D.T., Geochemistry and
size distribution of surface sediments of a large semi-enclosed lagoon under tropical climate,
Chemie der Erde
96. Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardhane, D.T., Geochemical and
sedimentological records of a Late Holocene enigmatic peat layer in a sandy coastal lagoon of
eastern Sri Lanka: paleotsunami or paleostorm Marine Geology
97. Wijenayake A, Pitawala A, Abayasekara C Bandara, R, Influence of acid-base and the heating on
the alteration of biotite mica, J. Mineralogy and Petrology
98. H. M. N. Bandaraa, A. Senaratnec, E. N. Jayaweeraa, G. K. Wickramasinghec,d, Hsin-Hui Huangf,
M. Yoshimuraf, M. M. M. G. P. G. Mantilaka, Development of Chemical-free Floatation
Technology for Purification Graphite and Characteristics of Products, Minerals Engineering
9.2 Conference Papers (full paper published)
99. Pitawala A (2001) Petrology and mineral chemistry of Eppawalacarbonatites, Sri Lanka.
Symposium on carbonatites and associated alkaline rocks and field workshop on carbonatites of
Tamil Nadu Publications, 21-23.
100. Jayawardana D, Pitawala A, Ishiga H (2010) ORP and pH relationships of sediments and
water in Sri Lankan Lagoons after 2004 December tsunami and their Effects on groundwater,
Proceedings of 2009 International Conference on Environmental Science and Technology,
Bangkok, Thailand,1-5
16
101. Young SM, Ishiga H, Pitawala A (2012) Geochemical assessment of Upper Mahaweli river
and Polgolla reservoir sediments, Sri Lanka, APCBEE Procedia, APCBEE Procedia, 1:53-58
(available online at www.sciencedirect.com).
102. Pitawala, H. M. T. G. A.. Herath, H. M. D. V and Jagath Gunatilake Assessing Heavy
Metal Pollution for Management and Planning in Colombo City, Sri Lanka, Cities - People –
Places, 3rd International Conference on Cities, People and Places (ICCPP-2015), 561-569
103. Ratha, P, Nandalal, KDW, Pitawala, HMTGA, Dharmagunawardhane, HA, Weerakoon,
SB (2017) Arsenic Contamination in Cambodia: A Status Review, The 2nd International
Symposium on Conservation and Management of Tropical Lakes,
9.3. Books Pitawala A, Fernando GWAR, (2010) Mineral Resources of Sri Lanka (in Sinhala), National
Science Foundation, Sri Lanka 120pp (ISBN- 978-955-590-090-4).
Fernando, G.W.A.R., Dahanayake, Kapila, Pitawala, H.M.T.G.A., Weerakoon, D.P.R., Thaldena,
S.N.B. Wijeratne, C.N.B., Wijesundara, D.T.de S. (2004). Essentials of Geology, Block 3 (PHU
3257 Natural Resources and Geological Hazards), The Open University of Sri Lanka Publ., pp 123
ISBN 955 –23-0994-8
9.4.Patents
Motha, JTS, Premathilake, WHAG, Hettiarachchi P, Ismail, MGMU, Liyanage AS, Pitawala
HMTGA, Low cost single fast-fired glazed tile based on red clay” Patent No: LK/P/1/1/15285.
D. G. G. P. Karunaratne, H. M. T. G. A. Pitawala, R. M. G. Rajapakse, M. M. M. G. P. G.
Mantilaka, Novel method to synthesize precipitated calcium carbonate/poly(methyl methacrylate)
nanocomposite using dolomite, Sri Lanka Patent Application No. LK/P/1/17768, Filed in 11th
July 2014
D. G. G. P. Karunaratne, H. M. T. G. A. Pitawala, R. M. G. Rajapakse, M. M. M. G. P. G.
Mantilaka, Synthesis of Nanomaterials of Magnesium Hydroxide and Magnesium Oxide using
Dolomite and Magnesite, Sri Lanka Patent Application No. LK/P/1/17769, Filed in 11th July 2014
D. G. G. P. Karunaratne, H. M. T. G. A. Pitawala, R. M. G. Rajapakse, M. M. M. G. P. G.
Mantilaka, Surfactant-assisted Synthesis of Nanomaterials using Dolomite and Rejected Brines of
Salt Industry as raw materials, Sri Lanka Patent Application No. LK/P/1/17770, Filed in 11th July
2014
D. G. G. P. Karunaratne, H. M. T. G. A. Pitawala, R. M. G. Rajapakse, M. M. M. G. P. G.
Mantilaka, Preparation of Hollow-bone-like Calcium Carbonate from Carbonate Minerals through
17
Surfactant/polymer Template, Sri Lanka Patent Application No. LK/P/1/17771, Filed in 11th July
2014
D. G. G. P. Karunaratne, H. M. T. G. A. Pitawala, R. M. G. Rajapakse, K. G. C. Senarathna, M.
M. M. G. P. G. Mantilaka, G. M. C. R. Bandara, Anticorrosive and Flame-retardant
Nanocomposite Surface Coatings of Polyaniline/vaterite and Polyaniline/magnesium hydroxide,
prepared from Natural Calcite and Dolomite, Sri Lanka Patent Application No. LK/P/1/17767,
Filed in 11th July 2014
W. P. S. L. Wijesinghe, M. M. M. G. P. G. Mantilaka, R. M. G. Rajapakse, H. M. T. G. A. Pitawala,
D. G. G. P. Karunaratne, R. P. V. J. Rajapakse, Preparation of hydroxyapatite nanomaterials from
naturally occurring carbonate minerals, Sri Lanka Patent Application No. LK/P/1/18036, Filed in
8th December 2014
9.5 Presentations at International Conferences
1. Pitawala A, Schidlowski M, Pense J, Dahanayake K (1996) The Eppawala apatite marbles of Sri
Lanka: problems of a phosphate deposit in a high-grade metamorphic terrain. An International
symposium and workshop (Strasbourg, France) on Deposystem of Phosphate and related
authigenic mineral processes, Pathways and Products.
2. Pitawala A, Schidlowski M,Todt W, Hofmeister W (1999) Mineralogy and geochemistry of the
apatite bearing marbles from Eppawala, Sri Lanka. European Union of Geosciences-10; 4(1), 789.
3. Pitawala A,Senaratne A, Dahanayake K (2002) Geochemical characteristics of
Muthurajawelapeatland Sri Lanka, GEOSAS IV, India, p 133.
4. Young SM, Pitawala A, Gunatilake J (2006) Environmental assessment on the geochemistry of
some essential elements in the waters of the Kala Oya Basin, Sri Lanka, HydroEco, International
Multidisciplinary Conference on Hydrology and Ecology, Czech Republic
5. Pitawala A (2007) Petrogenesis of pegmatites and their relation to amphibole and mica
mineralization in the central and the northcentral parts of Sri Lanka, International Conference on
Geo-Environment: Challenges ahead, India p.40
6. Ranmadugala BHS, Wijeratne EMS, Pitawala A (2007), Modelling of saltwater intrusion in Kelani
river estuary, International Conference on Tropical Aquatic Research Towards Sustainable
Development , Colombo, 15-16
7. Dharmagunawardhane HA, Pitawala A (2007) Some observations on natural groundwater quality
recovery processes in a tsunami affected coastal aquifer in the west coast of Sri Lanka. Proceedings
of the International Conference on Mitigation of the Risk of Natural Hazards, p33
18
8. Pitawala A, Dharmagunawardhena HA,Ajith-Chandane PK, WelagedaraAS (2007) Absorption
and disorption of ionic species by tsunami affected soils in the west coast: some findings from a
laboratory simulation. Proceeding of the International Conference on Mitigation of the Risk of
Natural Hazards, p39.
9. Jayawardana DT, Ishiga H, Pitawala HMTGA (2007) Ground and surface water quality of tsunami
affected South Western coastal area of Sri Lanka, American geophysical union, fall meeting, 2007,
Abstract no H51B 0439.
10. Jayasinghe P, Dharmagunawardhane HA, Pitawala A (2009) Nutrient pollution of groundwater by
agricultural activities in coastal aquifers; experience from Sri Lanka. 1st World Y.E.S. congress,
p 19
11. Young SM, Ishiga H, Pitawala A (2010) Geochemical characterization of the Mahawelliriver, Sri
Lanka, based on basement rock, soil and sediment compositions, American Geophysical Union,
Fall Meeting , H51F-0981
12. Jayawardana D, Ishiga H, Pitawala A (2010) A comparison of geochemical characteristics of
tsunami sediments with rocks, soils and marshy sediments in Sri Lanka American Geophysical
Union, Fall Meeting, NH21A-1394
13. Jayawardana, DT, Pitawala HMTGA,Ishiga H (2011) Inferring the chemical and physical
parameters of groundwater of some villages in Sri Lanka for the occurrence of fluoride.
International Union of Geodesy and Geophysics Conference (IUGG), Melbourne, Australia.
14. Young SM, Pitawala A, Ishiga H (2011) Geochemical processes of the Mahawelli river, Sri Lanka,
using bulk sediments and its 180-2000 m and <180 m fractions, American Geophysical Union,
Fall Meeting , V13B2597Y.
15. Jayasinghe P, Pitawala A, Dharmagunawardhane HA, (2012) Mobility and retention of phosphate
in irrigated sandy agricultural fields, Kalpitiya, Northwest Sri Lanka Proceeding of the
International Symposium on Challenges Ahead, Water Quality and Human Health, p9.
16. Jayawardana DT, Pitawala, HMTGA. Ishiga AH.(2012) Geochemical Evidences in Soil and
Water Leading to Chronic Renal Failure Unknown Etiology in Dry Zone Sri Lanka Proceeding of
the International Symposium on Challenges Ahead, Water Quality and Human Health, p58.
17. EdirisingheEANV, Pitawala, HMTGA, Dharmagunawardhane,HA, Wijayawardana, RL
(2013)Groundwater Recharge and Isotopic Variations in the Natural Water Regimes in Kala Oya
Basin- Sri LankaProceeding of the International Symposium on Challenges Ahead, Water Quality
and Human Health, p65
18. Ishiga H, Pitawala A (2013) Collaborative Educational System of Earth Science and
Geoenvironmental Science, Conference on Sri Lanka - Japan Collaborative Research, p 48
19
19. Ishiga H, Pitawala A (2013) Collaborative Research for the Systematic Understanding of the
Coastal Zone inAsia, its Geohistory and Present Environments,Conference on Sri Lanka - Japan
Collaborative Research, p 49
20. Herath, HMDV, Gunatilake J, Pitawala, HMTGA, Iwao Y (2013) Geochemical Characteristics of
Canals of Two Major Cities in Sri Lanka, Conference on Sri Lanka - Japan Collaborative Research,
p 49
21. Ranaweera, DC, Pitawala, HMTGA, Young, SM, IshigaH and Senanayake, AMP (2014) Geo-
archaeological Study of Jetavanarama Historical Site at Anuradhapra, Sri Lanka, seminar on
Archeological Science and Science Archaeology, p 17
22. RMG. Rajapakse, GRA. Kumara, A. Pitawala, Nanda Gunawardana, AtulaSenaratne , Nadeesha
Gunawardena (2017) A simple and low-cost flotation technique for graphite concentration and
crystallinity enhancement, 28th International Symposium on Transport Phenomena, p42
23. G.R.A. Kumara, Eranji Jayaweera, H.M.T.G.A. Pitawala, A.U. Malikaramage, C.S.K.
Ranasinghe,G.K.Wickramasinghe, Atula Senaratne, Nanda Gunawardhana and R.M.G. Rajapakse
(2017) Low-cost dye-sensitized solar cells utilizing expanded graphite counter electrodes for
efficient power generation28th International Symposium on Transport Phenomena, p65
9.6 Presentations at National Conferences
24. Pitawala A andDahanayake K (1992) Sedimentological and mineralogical studies of some clay-
sand successions of Weuda, Northwestern Sri Lanka, Proceeding of Sri Lanka Association for the
Advancement of Science, p90.
25. Pitawala A and Dahanayake K (1992) Clay mineralogy and glacial sediments from Weuda, Annual
Research Session, Faculty of Science, University of Peradeniya, Sri Lanka. p1.
26. Pitawala A, Senaratne A, Dahanayake K (1993) Variation in distribution of different sulfur species
in the Muthurajawela swamp, Sri Lanka, Annual Research Sessions, Faculty of Science,
University of Peradeniya, Sri Lanka.p12.
27. Pitawala A, Senaratne A, Dahanayake K (1993) Distributions of sulfur and pH variations in
surficail sediments and water of the Muthurajawela marshy environment, Sri Lanka Association
for the Advancement of Science, p150.
28. Pitawala A and Senaratne A (1994) Burial of poorly soluble Eppawala phosphate in
Muthurajawela peat: The variation in chemistry and solubility, Second National Symposium on
EppawalaPhosphate Deposit; 32-34.
29. Pitawala A, Senaratne A, Dahanayake K (1994) Spatial distribution of some elements in the
Muthurajawelapeatland, Sri Lanka Association for the Advancement of Science, 139.
20
30. Pitawala A, Senaratne A, Dahanayake K (1994) Enhanced dissolution of Eppawala apatite acid-
mediated laboratory systems, Annual Review, Institute of Fundamental Studies, 48.
31. Pitawala A (2001) Isotopic and geochemical investigation of the Eppawalacarbonatite complex,
Sri Lanka: evidence for an enriched mantle source, Geological Society of Sri Lanka,Annual
Research Sessions, p2.
32. Pitawala A (2001) Anatomy and categorization of pegmatites around Moragahakanda area.
University Research Sessions, University of Peradeniya, p149.
33. Pitawala A (2002) Zoned granitic pegmatites in Elahera area, Sri Lanka. University Research
Sessions, University of Peradeniya, p131.
34. Wijeratne CNB, Pitawala A, Senaratne A (2002) Environmental problems and natural hazards in
Matale urban area. University Research Sessions, p133.
35. Pitawala A, Ratnasekera JL, Karunaratne BA (2004) Some observations on thermally treated
mixture of Eppawala apatite and marble, Geological Society of Sri Lanka,Annual Research
Sessions, p5.
36. Pitawala A (2004) Economic potential of some hard rocks of Sri Lanka. Geological Society of Sri
Lanka,Annual Research Sessions, p16.
37. Pallawala PMDWD, Pitawala HMTGA, Gunatilake J (2004) Urban geological problems in
Ratnapura city, Sri Lanka, University Research Sessions, University of Peradeniya, p193.
38. Wickramarathne WGHK, Pitawala HMTGA, Senaratne A (2004) Estimation of mica in
amphibolite-facies rocks of the Kadugannawa Complex, Sri Lanka, University Research Sessions,
University of Peradeniya, p194.
39. Young SM, Pitawala A, Gunatilake J (2005) Vulnerability of the water contamination in an
agricultural area: A case study from Dambulla, University Research Sessions, p145.
40. Pitawala A and, Trumbull RB (2006) Post metamorphic intrusions in the Kawisigamuwa area, Sri
Lanka: geological setting, petrology and geochemistry, Geological Society of Sri Lanka, Annual
Research Sessions, p8.
41. Fernando GWAR, Pitawala A, Amaraweera G (2006) Two contrasting mineralized belts located
in the Matale District, Sri Lanka: some field evidences. Geological Society of Sri Lanka, Annual
Research Sessions, p11.
42. Amaraweera, THNG, Pitawala A, Fernando GWAR (2006) Potential mineral resources and their
limitation for the mineral industry- a case study from Mataledistrict, University Research Sessions,
University of Peradeniya, p157.
21
43. Young, SM, Pitawala A, Gunatilake J (2006) Effect of application of excess fertilizer on the quality
of groundwater in the Eppawala area, University Research Sessions, University of Peradeniya,
p156.
44. Welwegamage, USK, Karunaratne, DGGP, Pitawala HMTGA (2006) Interaction between
magenta and red earth in adsorptive removal and dye from effluent waters, University Research
Sessions, University of Peradeniya, p 95.
45. Amaraweera THNG, Pitawala A, Fernando GWAR (2007) Petrogenesis of pegmatites in and
around Owala-Kaikawela area, Sri lanka, Geological Society of Sri Lanka, Annual Research
Sessions, p2.
46. Hegoda C, Pitawala A, Fernando GWAR (2007) The effect of the mixture of paddy and vinegar
on mica; a purifying technique used in ayurvedic medicine, Geological Society of Sri Lanka,
Annual Research Sessions, p12.
47. Young SM, Pitawala A, Gunatilake J (2008) Some factors influencing natural occurrence of
fluoride rich groundwaters in some agricultural areas of the North-central province of Sri Lanka,
Geological Society of Sri Lanka, Annual Research Sessions, p12.
48. Hettiarachchi P, Premathilake WHAG, Motha GTS, Pitawala A (2009) Characterization of red
clay deposits of Sri Lanka and identification of appropriate body composition for ceramic
manufacturing, Geological Society of Sri Lanka, Annual Research Sessions, p6.
49. Perera MTGN andPitawala A (2009) Mineralogical and geochemical characteristics of quarry
dust, Geological Society of Sri Lanka, Annual Research Sessions, p7.
50. Jayasinghe P, RatnayakeAS, Pitawala A (2009) Weathering of monuments of Jethawanaramaya,
Anuradhapura, Sri Lanka. Geological Society of Sri Lanka, Annual Research Sessions, p17.
51. Seneviratne NRK, Pitawala A, Fernando GWAR (2009) Economic potential of quartzite gravels
from the Matale District, Geological Society of Sri Lanka, Annual Research Sessions, p5.
52. Pitawala, HMTGA (2009) Nutrient pollution of water in some agricultural and urban areas of Sri
Lanka, Proceedings of the Symposium on Effective Synergization of Water Resouces and
Landscape Management, 60-61.
53. Mantilaka, MMMGPG, Karunaratne DGGP, Rajapakse RMG, Pitawala HMTGA (2012) synthesis
and characterization of precipitated calcium carbonate/ poly (methyl methacrylate) nano-
composite using Sri Lanka dolomite, Geological Society of Sri Lanka, Annual Research Sessions,
p17.
54. Madugalla TBNS, Pitawala HMTGA, Karunaratne DGGP (2012) Value addition to
Eppawalacarbonatite, Geological Society of Sri Lanka, Annual Research Sessions p16.
22
55. Ultra-High Temperatures of Granulite Facies Metamorphism constrained from Marble-Mafic
Granulite Associations at the Highland Complex of Sri Lanka
56. G. W. A. R. Fernando, T.H.N.G.Amaraweera, S. Chakraporty, H.M.T.G.A.Pitawala Ultra-High
Temperatures of Granulite Facies Metamorphism constrained from Marble-Mafic Granulite
Associations at the Highland Complex of Sri Lanka, In proceeding of: Annual Sessions of
Geological. Society of Sri Lanka (GSSL)
57. Dalugoda Y, Pitawala HMTGA, Gunatilake J (2012) Pollution of Hamilton Canal, Sri Lanka,
Recorded in Sediments. Geological Society of Sri Lanka, Annual Research Sessions p11.
58. Jayawardana DT, Pitawala HMTGA, Ishiga AH (2012) Geochemical evidences in soil and water
leading to chronic renal failure unknown etiology in dry zone Sri Lanka, Proceedings of the
International Symposium on Challenges Ahead, Water Quality and Human Health, p58.
59. Jayasinghe P, Pitawala A, Dharmagunawardhane, HA (2012) Mobility and retention of phosphate
in irrigated sandy agriculturall fields, Kalpitiya, Northwest Sri Lanka. Proceedings of the
International Symposium on Challenges Ahead, Water Quality and Human Health, p9
60. Edirisinghe EANV, PitawalaHMTGA, Dharmagunawardhane, HA, Wijayawardane, RL (2013)
Groundwater recharge and isotopic variation in the natural water regimes in the Kala Oya basin-
Sri Lanka, Proceedings of the International Symposium on Challenges Ahead, Water Quality and
Human Health, p7.
61. Aravinna AGP, Priyantha N, Pitawala HMTGA, Yatigammana Y (2013) Status and seasonal
trends of major cations in irrigation water in left and right bank canals of MinipeAnicut,
Proceedings of the International Symposium on Challenges Ahead, Water Quality and Human
Health, p9.
62. Udagedara DT,PitawalaHMTGA, Dharmagunawardhane, HA(2013)Analysis of heavy metals and
trace elements in regional groundwater in the perspective of mineral exploration: A case study in
the crystalline rock terrain, Sri Lanka, Proceedings of the International Symposium on Challenges
Ahead, Water Quality and Human Health, p20.
63. T.B.N.S. Madugalla, H.M.T.G.A. Pitawala, W.K.B.N. Prame and D.G.G.P. Karunaratne,
Hydrothermal Mineralization Hosted in Impure Marbles of Moragahakanda Area, Sri
LankaProceedings of the 30th Technical Session of Geological Society of Sri Lanka, p3
64. W.K.D.G.D.R. Charles, N.D. Subasinghe, N. De Silva, H.M.T.G.A. Pitawala and S.A.
Samaranayake, Use of Magnetic Anomalies to Estimate Subsurface Extent of the Eppawala
Phosphate Deposit, Proceedings of the 30th Technical Session of Geological Society of Sri Lanka,
p5
65. A.G. PiyalAravinna, H.M.T.G.A. Pitawala, N. Priyantha and S. K. Yatigammana, Geochemical
Characteristics of Suspended Matter in the Lower Catchment Area of the Mahaweli River Basin,
Proceedings of the 30th Technical Session of Geological Society of Sri Lankap10
23
66. H. M. D. V. Herath, H. M. T. G. A. Pitawala and A. A. J. K. GunatilakePhysico-Chemical
Characteristics of Canal Water from Colombo Metropolitan Region, Sri Lanka, Proceedings of the
30th Technical Session of Geological Society of Sri Lankap11
67. A.U. Wijenayake, H.M.T.G.A. Pitawala, B.M.R. Bandara and C.L. Abayasekara, Chemical,
Mineralogical and Antibacterial Properties of Traditional Mica Based Drugs, Proceedings of the
30th Technical Session of Geological Society of Sri Lankap13
68. S.V.T.D. Raveendrasinghe M.M.M.G.P.G. Mantilaka and H.M.T.G.A. Pitawala, Preparation of
Graphite Oxide Nanoparticles from Sri Lankan Naturally Occurring Graphite, Proceedings of the
30th Technical Session of Geological Society of Sri Lanka p15
69. A.M.N.M. Adikaram, H.M.T.G.A. Pitawala, H.Ishiga, D.T. Jayawardhane and K.W. Prasadini
(2017) Biogeology and sedimentary geochemistry: a case study in Batticaloa lagoon, Sri Lanka,
Proceedings of the 33rd Technical Session of Geological Society of Sri Lanka, p4
70. A.U Wijenayake, H.M.T.G.A Pitawala, B.M.R Bandara, C.L Abayasekara (2017) Rapid
pyrometamorphism of biotite mica during traditional drug preparation, Proceedings of the 33rd
Technical Session of Geological Society of Sri Lanka, p8
71. D.M.S.N. Dissanayake, M.M.M.G.P.G. Mantilaka, K.M. Nalin de Silva, H.M.T.G.A. Pitawala,
R.T. De Silva and G.A.J. Amaratunga (2017) Synthesis of high purity iron oxide from Sri Lankan
ferruginous laterites,Proceedings of the 33rd Technical Session of Geological Society of Sri
Lanka, p13
72. G.R.N.Gunarathna, H.M.G.T.A.Pitawala, A.L.T.Hewawsam, Dharani Wijesundara,
Y.P.S.Siriwardhana, L.K.Senevirathna and Bernard Prame (2017) Interim results of field and
laboratory studies on red and brown earth occurring in the northwestern coastal area of Sri Lanka,
Proceedings of the 33rd Technical Session of Geological Society of Sri Lanka, p20
73. P D. M. D. I. K. Ariyarathna, E.K.C.W.Kularathna and H.M.T.G.A.Pitawala (2017) Petrogenesis
of flood basalt on Mannar Basin, Sri Lanka, Proceedings of the 33rd Technical Session of
Geological Society of Sri Lanka, p23
74. W.M.S.H. Barammane and H.M.T.G.A. Pitawala (2017) Occurrence and petrological significance
of graphite in pegmatite and country rocks atRandenigala, Sri Lanka, Proceedings of the 33rd
Technical Session of Geological Society of Sri Lanka, p25
75. T.C. Senevirathna, H. W. M. A. C. Wijayasinghe, N. W. B. Balasooriya, H. M. T. G. A. Pitawala
(2017) Purity enhancement of Sri Lankan vein graphite using perchloric acid leaching,
Proceedings of the 33rd Technical Session of Geological Society of Sri Lanka, p26
24
76. M.G.S. Jayanath, Jagath Gunatilake, H.M.T.G.A. Pitawala (2017) Geological and geophysical
investigation at the construction site of the Kaluganga main dam, Sri Lanka, Proceedings of the
33rd Technical Session of Geological Society of Sri Lanka, p30
77. T.C. Senevirathna, H.W.M.A.C. Wijesinghe, N.W.B. Balasooriya and H.M.T.G.A. Pitawala
(2017) Use of chemical purification to upgrade Sri Lankan vein graphite for Li-ion rechargeable
battery applications, Proceedings of Postgraduate Institute of Science Research Congress, p2
78. A.M.N.M. Adikaram, H.M.T.G.A. Pitawala, D.T. Jayawardhane and M.M.T.I. Megasooriya
(2017) Priliminery investigation of environmental changes recorded in the Batticaloa lagoon, Sri
Lanka, Proceedings of Postgraduate Institute of Science Research Congress, p16
79. EANV,Edirisinghe HMTGA Pitawala, HA Dharmagunawardhane (2017) The temporal variation
of groundwater quality and recharge: An isotope and chemical study in two watersheds in the hard
rock terrain of Sri Lanka, Proceedings of Postgraduate Institute of Science Research Congress,
p30
80. I.U. Wijethungaarrachchi, T.R.T. Weerasinghe, J.G.S. Ranasinghe, H.M.T.G.A. Pitawala, W.S.L.
de Silva and G.D.D.S. Gamage (2017) A preliminary study of the composition of common bile
duct stones, Proceedings of Postgraduate Institute of Science Research Congress, p92
81. T.R.T. Weerasinghe I.U. Wijethungaarrachchi, H.M.T.G.A. Pitawala, J.G.S. Ranasinghe, , W.S.L.
de Silva and G.D.D.S. Gamage (2017) A preliminary study of the structure of common bile duct
stones, Proceedings of Postgraduate Institute of Science Research Congress, p93
82. R.M.N.M. Rathnayake, H.P.T.S. Hewathilake, H.W.M.A.C. Wijayasinghe, H.M.T.G.A. Pitawala
(2016) Effect of structural verities of natural vein graphite on synthesis of expanded graphite by
chemical oxidation Proceedings of Postgraduate Institute of Science Research Congress, p3
83.
9.7 Extended Abstracts
84. Amaraweera THNG, Pitawala HMTGA, Fernando GWAR (2007) Stability of mica, K-feldspar
and apatite in water, organic matters and citric acid, 2ndAnnual Conference on Minerals for a Better
Future, Proceedings of Peradeniya University of Moratuwa Research Sessions, 25-28
85. Young SM, Pitawala A, Gunatilake J (2007) Geochemical characterization of surface water and
groundwater in some areas of North-central and Northwestern Sri Lanka,Proceedings of
Peradeniya University Research Sessions, 290-291.
86. Amaraweera THNG, Pitawala A, Fernando GWAR (2007) Chemical reactivity of mica, K-
feldspar and apatite in organic acids and water,Proceedings of Peradeniya University Research
Sessions, 298-300.
25
87. Dharmagunawardana HA, Welagedara A, Pitawala A, Mubarak MNA (2007) Deterioration of
groundwater quality in tsunami affected coastal aquifers in Sri Lanka and complexities in natural
recovery,Proceedings of Peradeniya University Research Sessions, 301-303.
88. Jayasinghe JP, Dharmagunawardhane HA, Pitawala A, Madawala S (2008) Groundwater
contaminatrion in coastal quifers due to agricultural practices: recent experience from Kalpitiya
peninsula in the West coast of Sri Lanka,Proceedings of Peradeniya University Research Sessions,
390- 391.
89. Welagedara AS, Pitawala A, Dharmagunawardana HA (2008) Soil and water quality deterioration
due to cation exchange capacities of tsunami affected soils: experience from the Southern coast of
Sri Lanka,Proceedings of Peradeniya University Research Sessions, 392- 393.
90. Dulanjalee PHE, Pitawala A (2008) Salt mineralogy of soils in the area of Nawagattegama, Sri
Lanka,Proceedings of Peradeniya University Research Sessions, 397- 399.
91. Hettiarachchi, P, Premathilaka WHAG, Motha JTS, Pitawala, A (2009) Development of high
quality ceramic products using granite, Proceedings of Peradeniya University Research Sessions,
Sri Lanka, 14, 263-265.
92. Pathirana CK, Abeyruwan H, Somaratna APN, Pitawala HMTGA (2009) Study on potential alkali-
silica reactivity of aggregates in Sri Lanka, Proceedings of Peradeniya University Research
Sessions, Sri Lanka, 14,465-467
93. Ratnayake AS, Pitawala A (2009) Weathering of monuments at Jethawanaramaya by biological
processes, Proceedings of Peradeniya University Research Sessions, Sri Lanka, 14, 347-349
94. Jayasingha JP, Dharmagunawardhane HA and Pitawala A. (2009) Geochemistry of quaternary
aquifers of Sri Lanka; A study from Northwestern coastal area, Proceedings of Peradeniya
University Research Sessions, Sri Lanka, 14, 353-355
95. Jayasingha P, Pitawala A, Dharmagunawardhane HA (2010) Behaviour of nitrate in sandy soil;
soil column experiments, Proceedings of Peradeniya University Research Sessions, Sri Lanka, 5,
481-483
96. Kularatne KUKS, Pitawala A (2010) Comparative evaluation of short-term leach tests for biotite
mica, Proceedings of Peradeniya University Research Sessions, Sri Lanka, 15, 478-480
97. Wijayarathne,WDB, Madugalla, TBNS, Pitawala HMTGA (2013) Mineral chemistry and
petrogenesis of carbonatite bodies at Kawisigamuwa, Sri Lanka.Geological Society of Sri Lanka,
Annual Research Sessions, p57-60.
98. Madugalla, TBNS, Pitawala HMTGA, Karunaratne, DGGP (2013)Petrographic and geochemical
characteristics of marbles in central Sri Lanka: potential applications in industries Geological
Society of Sri Lanka, Annual Research Sessions, p61-64.
26
99. Senevirathne, C, Ranasinghe, PN, Pitawala HMTGA (2013) Sedimentological and geochemical
evidences for paleo-tsunami and environmental changes from coastal sediments, Southeastern Sri
LankaGeological Society of Sri Lanka, Annual Research Sessions, p87-90.
100. Mantilaka, MMMGPG, Pitawala, HMTGA, Rajapakse RMG,Karunaratne DGGP (2013)
Nanomaterials from Sri Lankan marbles: A novel approach for value added products, Geological
Society of Sri Lanka, Annual Research Sessions, p105-108.
101. Herath, HMDV, PitawalaHMTGA,Gunatilake,AAJK, DalugodaTYS (2013) Heavy metal
contamination in road deposited sediments in Colombo urban area,Geological Society of Sri
Lanka, Annual Research Sessions, p127-130.
102. M.M.M.G.P.G. Mantilaka W.P.S.L. Wijesinghe R.M.G. Rajapakse 1,D.G.G.P.
Karunaratne and H.M.T.G.A. Pitawala (2013) Surfactant-Assisted Synthesis of Nanosized
Precipitated Calcium Carbonate and Magnesium Hydroxide from Marble, Proceedings of
Peradeniya University Research Sessions, Sri Lanka, p16
103. T.B.N.S. Madugalla1, G.A. Pitawala1 and D.G.G.P. Karunaratne (2013) Discrimination of
Sri Lankan Marble by Petrographical, Chemical and Thermal Studies, Proceedings of Peradeniya
University Research Sessions, Sri Lanka, 178-179
104. Wijenayake AU, Abayasekara CL, Pitawala HMTGA, Bandara BMR (2013)
Antimicrobial effect of two Rasasastra drugs against some clinical (or human) pathogens
Proceedings of Peradeniya University Research Sessions, Sri Lanka, 16, 478
105. A.G.P Aravinna, H.M.D N. Priyantha, H.M.T.G.A. Pitawala and M.W.S.K
Yatigammana(2013)Status of water quality of Mahaweli left and right bank canals in dry season
Proceedings of Peradeniya University Research Sessions, Sri Lanka, 16, 213
106. Wijenayake AU, Abayasekara CL, Pitawala HMTGA, Bandara BMR (2013) Mineral
constituents and antimicrobial activity of three rasashastra formulations”. International Conference
on Traditional & Alternative Medicine-December 09-11, Hyderabad, India
107. MantilakaMMMGPG, DasanayakeHMDD, KarunaratneDGGP, Rajapakse
RMG,PitawalaHMTGA(2013) Hydrothermal Synthesis of Magnesium Oxide Nanoparticles from
Dolomite and Rejected Brines of Salt Industry, International Conference on Structural Engineering
and Construction Management
108. M.M.M.G.P.G. Mantilaka, K.G. ChathurangaSenarathna, D.G.G.P. Karunaratne,
H.M.T.G.A. Pitawala, R.M.G. Rajapakse (2014) Polyaniline/vateriteNanocomposite Prepared
using Natural Calcite with Superior Anticorrosive Performance, International Conference on
Nanoscience and Nanotechnology, Colombo, Sri Lanka
27
109. Wijenayake AU, Abayasekara CL, Pitawala HMTGA, Bandara BMR (2014)Antimicrobial
activity, chemical and mineralogical characters of a mica-based herbo-metallic drug Proceedings
of Peradeniya University Research Sessions, Sri Lanka -2014
110. Wijenayake AU, Pitawala HMTGA,Abayasekara CL, , Bandara BMR (2014) Study of
mineralogical and chemical changes of biotite mica during the alchemical pharmaceutical
preparations Proceedings of Peradeniya University Research Sessions, Sri Lanka -2014
111. Madugalla TBNS, Pitawala A, Karunaratne DGGP(2014) Chemical and mineralogical
anisotropy of carbonate phase of Eppawlacarbonatites,Proceedings of Peradeniya University
Research Sessions, Sri Lanka -2014
112. RuwanBandaraGMC, Senarathnaa KGC, Mantilakaa MMMGPG, Rajapaksea, RMG,
KarunaratneDGGP, Pitawala HMTGA (2014) Flame-retardant and anticorrosive surface coatings
of polyaniline/magnesium hydroxide nanocomposites prepared from dolomite Proceedings of
Peradeniya University Research Sessions, Sri Lanka
113. Herath, HMDV, Pitawala, HMTGA, Gunatilake, J(2014) Vulnerability of urban
environmental pollution due to heavy metal pollution in Colombo; Sri Lanka, 2nd International
Conference on Cities, People & Places - ICCPP2014
114. Edirisinghe EANV, Pitawala, HMTGA, Dharmagunawardhane,HA, Wijayawardana, RL
(2014) Origin of moisture for the rain processes in the west coast of Sri Lanka: a case study using
stable isotope signatures of rain.International Symposium on Challenges Ahead, Water Quality
and Human Health
115. Edirisinghe EANV, Pitawala, HMTGA, Dharmagunawardhane,HA, Wijayawardana,
RL (2014) Effect of seasonal rainfall variations on groundwater recharge in upper catchments of
Kala Oya basin, Sri Lanka; an assessment using stable isotope technique, Research Congress,
Postgrduate Institute of Science, Sri Lanka
116. M. M. M. G. P. G. Mantilaka, W. P. S. L. Wijesinghe, H. M. T. G. A. Pitawala, R. M. G.
Rajapakse, D. G. G. P. Karunaratne (2014) Synthesis of Hydrophobic Magnesium Hydroxide
Nanocrystallites from Dolomite PGIS Research Congress, Postgraduate Institute of Science,
University of Peradeniya, Sri Lanka
117. Y.R. Somarathne, M.M.M.G.P.G. Mantilaka, D.G.G.P. Karunaratne, H.M.T.G.A.
Pitawala, R.M.G. Rajapakse (2014)Biomimetic Synthesis of Precipitated Calcium
Carbonate/poly(ethylene glycol) Nanocomposite using Dolomite International Conference on
Nanoscience and Nanotechnology, Colombo, Sri Lanka.
118. R.A. Amarasinghe, M.M.M.G.P.G. Mantilaka, H.M.T.G.A. Pitawala, D.G.G.P.
Karunaratne, R.M.G. Rajapakse (2014) Adsorption of Methylene Blue from Aqueous Solution by
Calcium Carbonate Nanoparticles Peradeniya University International Research Sessions, Faculty
of Science, University of Peradeniya, Sri Lanka.
28
119. T.B.N.S. Madugalla, H.M.T.G.A. Pitawala, W.K.B.N. Prame and D.G.G.P. Karunaratne
(2014)Hydrothermal Mineralization Hosted in Impure Marbles of Moragahakanda Area, Sri
Lanka, Geological Society of Sri Lanka Annual Technical Sessions
120. A.G. PiyalAravinna, H.M.T.G.A. Pitawala, N. Priyantha and S. K. Yatigammana (2014)
Geochemical Characteristics of Suspended Matter in the Lower Catchment Area of the Mahaweli
River BasinGeological Society of Sri Lanka Annual Technical Sessions
121. H. M. D. V. Herath, H. M. T. G. A. Pitawala and A. A. J. K. Gunatilake (2014) Physico-
Chemical Characteristics of Canal Water from Colombo Metropolitan Region, Sri
Lanka,Geological Society of Sri Lanka Annual Technical Sessions
122. A.U. Wijenayake, H.M.T.G.A. Pitawala, B.M.R. Bandara and C.L. Abayasekara (2014)
Chemical, Mineralogical and Antibacterial Properties of Traditional Mica Based DrugsGeological
Society of Sri Lanka Annual Technical Sessions
123. S.V.T.D. Raveendrasinghe M.M.M.G.P.G. Mantilaka and H.M.T.G.A. Pitawala (2014)
Preparation of Graphite Oxide Nanoparticles from Sri Lankan Naturally Occurring
Graphite,Geological Society of Sri Lanka Annual Technical Sessions
124. W.K.D.G.D.R. Charles, N.D. Subasinghe, N. De Silva, H.M.T.G.A. Pitawala and S.A.
Samaranayake (2014) Use of Magnetic Anomalies to Estimate Subsurface Extent of the Eppawala
Phosphate Deposit,Geological Society of Sri Lanka Annual Technical Sessions
125. E.K.C.W. Kularathna, H.M.T.G.A. Pitawala, Atula Senaratne and Damsith Weerasinghe
(2015) Gondwana Breakup and Development of Sedimentary Basins in Sri Lanka, Proceedings
of the 31st Technical Session of Geological Society of Sri Lanka, pp6
126. W.A.G.K. Wickramasinghe, H.M.T.G.A. Pitawala, Chathuranga Senevirathne and
Dhamsith Weerasinghe (2015) Sub Volcanic Sedimentary Depositional Environment in Mannar
Basin, Sri Lanka, , Proceedings of the 31st Technical Session of Geological Society of Sri Lanka,
pp7
127. E.K.C.W. Kularathna, H.M.T.G.A. Pitawala and Atula Senaratne (2015) A Preliminary
Study on Pre-Flood Volcanic Hydrocarbon Prospectivity in the Mannar Basin, Sri Lanka, ,
Proceedings of the 31st Technical Session of Geological Society of Sri Lanka, pp8
128. A.M.N.M. Adikaram, H.M.T.G.A. Pitawala, H. Ishiga and D.T. Jayawardane, (2015)
Occurrence of Trace Fossils in Eastern Coast of Sri Lanka: Implications for Paleoenvironment
Proceedings of the 31st Technical Session of Geological Society of Sri Lanka, pp21
129. E.A N.V. Edirisinghe1, H.M.T.G.A. Pitawala, H.A. Dharmagunawardhane and R.L.
Wijayawardana (2015) Groundwater Recharge Mechanism in the Ambanganga Basin, Sri Lanka:
An Assessment Based on Stable Isotope Technique, Proceedings of the 31st Technical Session of
Geological Society of Sri Lanka, pp25
29
130. M.M.M.G.P.G. Mantilaka, H.M.T.G.A. Pitawala, D.G.G.P. Karunaratne and R.M.G.
Rajapakse (2015) Value-addition to Sri Lankan Impure Marbles through Synthesis of
Nanomaterials, Proceedings of the 31st Technical Session of Geological Society of Sri Lanka,
pp26
131. H.P.T.S. Hewathilake, H.W.M.A.C. Wijayasinghe, N.W.B. Balasooriya and H.M.T.G.A.
Pitawala (2015) HF Acid Digestion for Purification of Vein Graphite, Proceedings of the 31st
Technical Session of Geological Society of Sri Lanka, pp28
132. A.U. Wijenayake, H.M.T.G.A. Pitawala, C.L. Abayasekara and B.M.R. Bandara
(2015)Chemical and Mineralogical Stability of Biotite under Acidic and Basic Conditions,
Proceedings of the 31st Technical Session of Geological Society of Sri Lanka, pp 30
133. M.A.A.H. Ratnayake · M.M.M.G.P.G. Mantilaka · H.M.T.G.A. Pitawala · R.M.G.
Rajapakse · D.G.G.P. Karunaratne, (2015) Improvement of mechanical strength of rubber using
calcium carbonate nanoparticles, PGIS Research Congress, Postgraduate Institute of Science,
University of Peradeniya, Peradeniya, Sri Lanka
134. A.G.P Aravinna, H.M.D N. Priyantha, H.M.T.G.A. Pitawala and M.W.S.K Yatigammana
(2016) Geochemical characteristics of sediments of tributaries of Mahaweli river downstream of
Polgolla PGIS Research Congress, Postgraduate Institute of Science, University of Peradeniya,
Peradeniya, Sri Lanka, p41
135. T.C. Senevirathna, H. Hewathilake, H. Wijayasinghe, N.W.B. Balasooriya, H.M.T.G.A.
Pitawala (2016) A rapid method to prepare exfoliated graphite using Sri Lankan vein graphite,
Research Congress, South Eastern University of Sri Lanka
136. L.A.L. Kithmini, A.U. Wijenayake and H.M.T.G.A. Pitawala (2016) Chemical and
mineralogical characteristics of processedorpiment used for the Ayurvedic medicine, Proceedings
of the 32nd Technical Sessions of Geological Society of Sri Lanka, p15
137. AS E.K.C.W. Kularathna, H.M.T.G.A. Pitawala (2016) gas discoveries and development
challenges in the Mannar Basin, Sri Lanka, Proceedings of the 32nd Technical Session of
Geological Society of Sri Lanka
138. A Adikaram, H Pitawala, H Ishiga, DT Jayawardhane Elemental Geochemistry of
Superficial Sediments of Batticaloa Lagoon In Sri Lanka; Implications for Provenance and
Sedimentary Processes
139. A.U. Wijenayake, H.M.T.G.A. Pitawala, L.A.L. Kithmini, B.M.R. Bandara (2016) Effect
of Rasashastra preparation techniques for detoxification of minerals
140. E.K.C.W. Kularathna, H.M.T.G.A. Pitawala and Atula Senaratne (2016) Record of
igneous activities in the Mannar basin, Sri Lanka PGIS Research Congress, Postgraduate
Institute of Science, University of Peradeniya, Peradeniya, Sri Lanka, p42
30
141. H. M. T. G. A. Pitawala T.C. Senevirathna, H. W. M. A. C. Wijayasinghe (2017) N. W.
B. Balasooriya, Purity enhancement of Sri Lankan vein graphite using perchloric acid leaching,
Proceedings of the 33rd Technical Session of Geological Society of Sri Lanka, p18
142. W.M.S.H. Barammane and H.M.T.G.A. Pitawala (2017) Occurrence and petrological
significance of graphite in pegmatite and country rocks at Randenigala, Sri Lanka, Proceedings
of the 33rd Technical Session of Geological Society of Sri Lanka, p25
143. D. M. D. I. K. Ariyarathna, E.K.C.W.Kularathna and H.M.T.G.A.Pitawala (2017)
Petrogenesis of flood basalt on Mannar Basin, Sri Lanka, Proceedings of the 33rd Technical
Session of Geological Society of Sri Lanka, p3
144. A.U Wijenayake, H.M.T.G.A Pitawala, B.M.R Bandara, C.LAbayasekara 1, (2017)
Rapid pyrometamorphism of biotite mica during traditional drug preparation, Proceedings of the
33rd Technical Session of Geological Society of Sri Lanka, p8
145. A.M.N.M. Adikaram, H.M.T.G.A. Pitawala, H. IshigaD.T. Jayawardanaand K.W.
Prasadini1 (2017) Biogeology and sedimentary geochemistry: a case study in Batticaloa lagoon,
Sri Lanka, Proceedings of the 33rd Technical Session of Geological Society of Sri Lanka p4
146. Sandun Dissanayake, Prasanga Gayanath Mantilaka, K.M. Nalin De Silva H.M.T.G.A
Pitawala, Rangika Thilan De Silva, Gehan Amaratunga Gehan Amaratunga (2018)
ValueEnhancement of Sri Lankan Ferruginous Laterites and Its Applications in Nanotechnology,
International Research Symposium on Mineral Resources of Sri Lanka
147. G. T. D. Chandrakumara, S.Dissanayake, P.G. Mantilaka, R. T. De Silva, H.M.T.G.. A.
Pitawala, K.M. Nalin De Silva, Gehan Amaratunga (2018) Iron Oxide Nanospheres Reinforced
Chitosan Nanocomposite Films: Promising Alternatives for Petrochemical Packaging Material,
PGIS Research Congress, Postgraduate Institute of Science, University of Peradeniya, Sri Lanka
148. Adikari AMHV, Pitawala (2018) HMTGAA Study on Environmental Issues due to
theDevelopment of NuwaraEliya Badulla Road, International SymposiumonEarth Resources
Management & Environment, 105-110
9.8 Unpublished Thesis
1. Pitawala A (1992) Sedimentological and mineralogical studies of some clay sand deposits of
Weuda, northwestern Sri Lanka. research thesis for the special degree, University of Peradeniya,
71p
2. Pitawala A (1995) Muthuirajawela peat- its geochemical attributes and the potentail to acidulate
Eppawala apatite. M Phil thesis,University of Peradeniya, 108
3. Pitawala A (1999) The apatite-bearing marbles of Eppawala, Sri Lanka: petrographic and
geochemical evidence for a carbonatitic origin. Ph.D. thesis, Johannes Gutenberg University,
FRG.111p
31
10. Research Grants
Project Title Awarding Body Other Investigators Start Finish
Pegmatite in space & time: tectonic
setting, geochemistry and
petrogenesis, Grant No:-2001/55/S)
University of
Peradeniya
-- 2001 2002
As assessment of the potential threat
to the geochemical quality of surface
and groundwater – A case study
from Kala Oya basin, Sri
Lanka,Grant No:-RG/2005/W&E/1
National Science
Foundation of Sri
Lanka
Dr. J. Gunatilake 2005 2008
Study of mineralization in and
around Matale district aiming at
discovery of new occurrences and
value addition possibilities,Grant
No:- RG/2005/EB/1
National Science
Foundation of Sri
Lanka
Dr. R. Fernando 2005 2009
Impact of Tsunami on water quality
in selected areas and assessment of
potential water supplies for the
proposed relocation sites, Grant
No:- RG/2005/DMM/03
National Science
Foundation of Sri
Lanka
Ms. S. Wickramaratne,
Dr.H.A.
Dahrmagunawardhane, Mr.
S. Malavipathirana and Mr.
M.N.A. Mubarak
2005 2006
Assessment of groundwater
vulnerability in coastal aquifer
system in the Kalpitiya peninsula,
Grant No:- RG/2007/AG/02
National Science
Foundation of Sri
Lanka
Dr.H.A.Dahrmagunawardh
ane
2007 2010
Collation of research conducted to
date on placer mineral deposits
National Science
Foundation of Sri
Lanka
-- 2010 2011
Synthesis of value added products
from Sri Lankan dolomitic marbles,
Grant No:-NRC 11-178
National Research
Council, Sri Lanka
Dr. D.G.G.P. Karunaratne
and Prof. R.M.G.
Rajapakshe
2011 2015
Assessment of heavy metal pollution
in sediments and surface soils in the
Colombo metropolitan region -
Grant No:-NRC 11-142
National Research
Council, Sri Lanka
Dr. D.G.G.P. Karunaratne
2011 2015
Assessment of antimicrobial agents
in Aryurvedic(Rasashastra)
formulations
Higher Education
for Twenty First
Century (HETC)
Project
Dr. C. Abayasekara and
Prof. B.M.R. Bandara
2012 2016
Assessment of Environmental
Impacts of the Mahaweli Diversion
Scheme in selected downstream
locations
Higher Education
for Twenty First
Century (HETC)
Project
Prof. H.M.D.N. Priyantha
and Dr. S. Yatigammana
2012 2016
Value added products from Sri
Lankan vein graphite
International
Research Center,
Dr. A. Kumara, Prof. A.
Senaratne, Prof. G.
Rajapakse
2014 2016
32
University of
Peradenita
Synthesis and Commercialization of
Value Added Products from Sri
Lankan Dolomitic Lime
National Science
Foundation of Sri
Lanka
Dr. D.G.G.P. Karunaratne
and Prof. R.M.G.
Rajapakshe, Dr. A.
Manipura, Dr. G. Mantilake
2016 present
Tank–Cascade–System as Ancient
Measurement of Intergraded
Watershed Management in the Dry
Zone of Sri Lanka
Volkswagen
Foundation,
Germany
Prof. W. Bebermeier, Prof.
B. Schütt
2014 present
Synthesis of Value-added Products
including Nanomaterials from Sri
Lankan Laterite for Industrial
Applications
National Research
Council, Sri Lanka
Dr. Prasanga Gayanath
Mantilaka
2016 present
Commercial and Natural asbestos
fibers in the ambient environment of
Sri Lanka: A geological, social and
environmental perspective
National Research
Council, Sri Lanka
Dr. D.G.G.P. Karunaratne
and Dr. G. Mantilake
2019
Value addition to Eppawala
phosphate for industrial applications
HETCW4 Dr. N. Balasooriya and Dr.
G. Mantilake
2019
I, the undersigned, certify that to the best of my knowledge and belief the above information are true and
accurate.
HMTGA Pitawala
Project Title Awarding
Body
Other Investigators Start Finish