international geological symbol

7/27/2019 International Geological Symbol

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Cartographic standard geological

symbol indexVersion 3

Publications Production

Research Report RR/01/01


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BRITISH GEOLOGICAL SURVEY

RESEARCH REPORT RR/01/01


symbol indexVersion 3

C H Mawer

Key words

Geological map; symbols; area

ornaments; line styles.

Bibliographical reference

MAWER C H.2002.


symbol index. Version 3.BritishGeological Survey Research

Report, RR/01/01. 49pp.

ISBN 085272 402 0

NERC 2002 Keyworth, Nottingham British Geological Survey 2002


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The full range of Survey publications is available from the BGSSales Desks at Nottingham, London and Edinburgh; see contact

details below or shop online at www.geologyshop.com

The London Information Office also maintains a referencecollection of BGS publications including maps for consultation.

The Survey publishes an annual catalogue of its maps and otherpublications; this catalogue is available from any of the BGS SalesDesks.

The British Geological Survey carries out the geological survey ofGreat Britain and Northern Ireland (the latter as an agencyservice for the government of Northern Ireland), and of thesurrounding continental shelf, as well as its basic research

projects. It also undertakes programmes of British technical aid ingeology in developing countries as arranged by the Department

for International Development and other agencies.

The British Geological Survey is a component body of the NaturalEnvironment Research Council.

Keyworth, Nottingham NG12 5GG

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Parent Body

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www.nerc.ac.uk

BRITISH GEOLOGICAL SURVEY


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i

This report represents the latest version (version 3) of the

official BGS cartographic symbols, ornaments and line

styles.

Version 1.0 was produced in April 1997, following adevelopment project to unify 1:10 000 scale and 1:50 000

scale map symbols (CS/R&D/7). Version 2.0 was produced

in February 1999, following geological updates, and

inclusion of line styles and area ornaments (RR-99-05).

Version 3.0 was produced in September 2002, following

geological updates. This version replaces all previous

versions.

Foreword


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ii

Foreword i

Contents ii

1 Introduction 1

1.1 Standard geological symbols

2 Symbols 2

2.1 Index of symbols listed alphabetically within

each geological classification 2

2.2 Index of symbols listed alphabetically by

description 22

3 Area ornaments 41

Graphic ornaments listed alphabetically by description

4 Line styles 45

Graphic line styles listed alphabetically by description

Contents


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1

This document was compiled from information created

using MicroStation from Bentley Systems and

Fontographer from Macromedia. It was alsodesigned to accompany three Microstation digital libraries

and seven font libraries, which may be released at some

future time.

1.1 STANDARD GEOLOGICAL SYMBOLSThe geological symbols are described in Section 2. The

BGS standard length for an average* symbol is 3mm at

1:25 000 scale and all smaller scale maps, and 4mm for

1:10 000. (*The average symbol being the length of the

main body of the symbol i.e. the length of the Alluvium

symbol without a prefix or suffix).

Each symbol has been given a reference name, which isprimarily used within the Microstation digital library. The

reference names are an abbreviated form of their

description, many are grouped together in their geological

classification with a common prefix as follows:

ALV Alluvial deposits

BRK Brickearth

GFL Glaciofluvial deposits

GLA Glaciolacustrine deposits

GL Glacial deposits

IGL Interglacial deposits

LAC Lacustrine deposits

MA Marine deposits

RM Raised marine deposits

RS Rock symbols

RT River terrace deposits

S Structural symbols

SG Sand and gravel.

1 Introduction


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2

SECTION 5

CARTO.CEL

2.1

SYMBOLS

INDEX LISTED BY GEOLOGICAL

CLASSIFICATION


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2.1 SYMBOLS INDEX LISTED BY CLASSIFICATION

CLASSIFICATION DESCRIPTION REF NAME SYMBOL

D R I F T

Small area of made ground, backfilled pit ART_BP A

Small area of made ground, above surface ART_AS C

Small area of worked ground ART_WG B

Small area of landslip MSM_L P

Blockfield BLOC ECoombe deposits COD F

Clay-with-flints CWF G

Sand in clay-with-flints CWF_S D

Debris cone DCON H

Head or hillwash HEAD I

Head 1 HEAD1 M

Head 2 HEAD2 N

Blanket head / regolith HEAD_R K

Head, Burton Lazars HEADBL p

Head, Colluvium HEAD_C q

Gravelly head HEAD_G J

Head, Little Dalby HEADLD r

Head, Pen Hill HEADPH s

Sandy head HEAD_S L

Valley bottom head HEAD_V t

Pebbly clay and sand PBS Q

Scree / talus SCRE R

Inactive scree / talus SCRE_I T

ARTIFICIAL

DEPOSITS

MASS-

MOVEMENT

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Blown sand BLS WBlown sand, 1 BLS_1 X

Brickearth BRK_ Y

Brickearth, Dartford Silt BRK_DA Z

Brickearth, Enfield Silt BRK_ES [

Brickearth, Ilford Silt BRK_IL \

Brickearth, Langley Silt BRK_LS ]Brickearth, Wolston Clay BRK_WC ^

Loess LOESS _

Peat PEAT c

Basin peat PEA_BA l

Blanket peat PEA_BL m

Fen peat PEA_FN n

Hill peat PEA_H o

Nordelph peat PEAT_N e

Peat flow PEAT_F d

Submerged forest PET_SF f

Diatomite DIAT a

Diatomite, fluvial DIAT_F b

Shell marl SLM g

Bog iron ore ORE j

Calcareous tufa TUFA_C h

Tufa TUFA k

AEOLIAN

DEPOSITS

ORGANIC

DEPOSITS

CHEMICAL

/ORGANIC

DEPOSITS

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Alluvial fan deposits ALV_FN GAlluvial fan deposits, gravel ALV_FG F

Alluvium ALV A

Alluvium, 1 ALV_1 B

Alluvium, clay ALV_C C

Alluvium, sand and gravel ALV_SG H

River Terraces Arun Terrace Deposits, 1st RT_A1 KArun Terrace Deposits, 2nd RT_A2 L

Arun Terrace Deposits, 3rd RT_A3 M

Arun Terrace Deposits, 4th RT_A4 N

Arun Terrace Deposits, 5th RT_A5 O

Arun Terrace Deposits, 6th RT_A6 P

Arun Terrace Deposits, 7th RT_A7 Q

Balderton Sand and Gravel RT_BDN Y

Bank Farm Terrace RT_B U

Bassingfield Sand and Gravel RT_BS b

Beaconsfield Gravel RT_BC9 X

Beenham Grange Gravel RT_BG2 \

Beenham Stocks Gravel RT_BS7 c

Beeston Sand and Gravel RT_BEE Z

Belton Sand and Gravel RT_BEL [

Birstall Sand and Gravel RT_BIR ^

Black Park Gravel RT_BPG a

Blackwater Terrace Deposits, 3rd RT_B3 V

Blackwater Terrace Deposits, 4th RT_B4 W

Boyn Hill Gravel RT_BH ]

FLUVIAL

DEPOSITS

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Bramley Wey Terrace Deposits, 2nd RT_BW2 dBucklebury Gravel RT_BK8 _

Brooksby Sand and Gravel RT_BKY

Bunny Sand and Gravel RT_BN

Bytham Sand and Gravel RT_BTH

Caesar's Camp Gravel RT_CCG

Cheltenham Sand and Gravel ALV_CH DCombe Member RT_CM e

Corbets Tey Gravel RT_CY

Daylesford Member, 1st RT_DM1 g

Dollis Hill Gravel RT_DH f

Dry valley deposits ALV_DV E

Eagle Moor Sand and Gravel RT_EM

Eggington Common Sand and Gravel RT_EC h

Etwall Sand and Gravel RT_ET j

Fen Sand and Gravel RT_FG k

Finsbury Gravel RT_FIN l

Fluvial Sand and Gravel RT_FSG n

Freeland Member RT_FR m

Fulbeck Sand and Gravel RT_FUL o

Gerrards Cross Gravel RT_GC r

Godalming Wey Deposits, 1st RT_GW1 s

Godalming Wey Deposits, 1a RT_G1A p

Godalming Wey Deposits, 1b RT_G1B q

Godalming Wey Deposits, 2nd RT_GW2 t

Godalming Wey Deposits, 3rd RT_GW3 u

River Terraces

(continued)

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Hackney Gravel RT_HA xHanborough Member RT_H4 w

Holme Pierrepont Sand and Gravel RT_HP z

Kempton Park Gravel RT_KP {

Knighton Sand and Gravel RT_KN |

Leaves Green Gravel RT_LG }

Leen Sand and Gravel RT_LN Little Hereford River Terrace RT_H v

Lynch Hill Gravel RT_LH ~

Northmoor Member RT_N1

Ockbrook Sand and Gravel RT_OcK

Rissington Member RT_RM1

River Avon Deposits, 1st RT_AV1 S

River Avon Deposits, 2nd RT_AV2 T

River Severn Deposits, 1st RT_S1

River Severn Deposits, 2nd RT_S2

River Severn Deposits, 3rd RT_S3

River terrace deposits, 1st RT01

River terrace deposits,1a RT01A

River terrace deposits,1b RT01B

River terrace deposits,1c RT01C

River terrace deposits, 1st - 2nd RT01-2

River terrace deposits, 2nd RT02

River terrace deposits, 2nd - 3rd RT02-3

River terrace deposits, 3rd RT03

River terrace deposits, 4th RT04

River Terraces

(continued)

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River terrace deposits, 5th RT05 River terrace deposits, 5th - 6th RT05-6





River terrace deposits 10th RT10 River terrace deposits, 11th RT11





River terrace deposits, undifferentiated RT_U

River Worfe Deposits, undifferentiated RT_WF

River Worfe Terrace Deposits, 1st RT_WF1

River Worfe Terrace Deposits, 2nd RT_WF2

River Wye Terrace Deposits, 1st RT_WY1

River Wye Terrace Deposits, 2nd RT_WY2

Rother Terrace Deposits, 1st RT_RO1

Rother Terrace Deposits, 2nd RT_RO2

Rother Terrace Deposits, 3rd RT_RO3

Rother Terrace Deposits, 4th RT_RO4


Rother Terrace Deposits, undifferentiated RT_ROU

Shakenhurst Terrace RT_S

Shepperton Gravel RT_SH

River Terraces

(continued)

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River Terraces

(continued)

Sherborne Member, 1st terrace RT_SM1 Sherborne Member, 2nd terrace RT_SM2

Silchester Gravel RT_SL6

Summertown Radley Member, 2nd terrace RT_SR2

Surrey Hill Gravel RT_SHG

Syston Sand and Gravel RT_SYS

Taplow Gravel RT_TAP Thatcham Gravel RT_TH3

Wanlip Sand and Gravel RT_WAN

Warp ALV_W I

Westland Green Gravel RT_WG

Westmill Lower Gravel RT_WM

Whatton Sand and Gravel RT_WH

Winter Hill Gravel RT_WH7

Wolvercote Member RT_WO3

Woodford Gravel RT_WD

Lacustrine deposits LAC }

Lacustrine deposits 1 LAC1



Lacustrine delta deposits LAC_D ~

Lacustrine shoreface and beach deposits LAC_SB

Lacustrine shoreface and beach deposits 5 LAC_S5

LACUSTRINE

DEPOSITS

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Bank deposits MA_B H

Bank deposits, sand MA_BS L

Barroway Drove Beds MA_BDB D

Chenier deposits MA_CH `

Netley Heath Deposits MA_NET

Coastal barrier deposits MA_CB E

Coastal barrier, sand and gravel MA_SGC R

Coastal zone deposits, undifferentiated MA_CZ a

Intertidal deposits, undifferentiated MA_I b

Marine band MA_MB I

Marine beach deposits MA_BE C

Marine deposits, undifferentiated MA_MA G

Marine deposits, sand and gravel MA_SG Q

Mud deposits MA_M F

Saltmarsh deposits MA_SM W

Sand and silt deposits MA_SSI X

Sand deposits MA_S K

Sand, tabular or sheet deposits MA_SST Y

Shell bank (mussel band) MA_SHB U

Shoreface deposits MA_SF d

Shoreface deposits, sand MA_SFS P

Shoreface deposits, sand and gravel MA_SSG S

Silt deposits MA_SI V

Storm beach deposits MA_SB c

Storm beach deposits, 1 MA_SB1 M

Storm beach deposits, gravel MA_SBG O

MARINE

DEPOSITS

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Supratidal deposits undifferentiated MA_SU T

Tabular or sheet deposits MA_ST Z

Tidal flat deposits MA_TF ^

Tidal flat deposits, 1 MA_TF1 [

Tidal, river or creek deposits MA_TR \

Tidal, river or creek deposits, mud MA_TRM ]

Tidal, river or creek deposits, mud and gravel MA_TMG J

Washover deposits MA_WO _

Beach deposits RM_SB2 r

Brackish lagoon RM_BL

Delta deposits, sand and gravel RM_DS k

Flandrian deposits RM_FL l

Intertidal RM_IN m

Late glacial RM_LG |

Post glacial RM_PG q

Raised marine delta deposits RM_D j

Raised marine deposits RM e

Raised marine deposits, clay RM_C {

Raised marine deposits, high RM_2 g

Raised marine deposits, highest RM_3 h

Raised marine deposits, low RM_1 f

Raised marine deposits, March Gravels RM_MG o

Raised marine deposits, mud RM_M n

Raised marine deposits, Nor Valley Clay RM_NV p

Raised marine deposits, sand and gravel RM_SG u

Raised marine deposits, silt and clay RM_SC t

MARINE

DEPOSITS

(continued)

RAISED MARINE

DEPOSITS

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Raised marine deposits, Terrington Beds RM_TB w

Raised marine deposits, Tottenhill Gravels RM_TO y

Raised marine, tidal, river or creek deposits RM_TF x

Raised tidal flat deposits of Flandrian age RM_TRF z

Shore beach deposits of Flandrian age RM_SBF s

Subtidal RM_SU v

Interglacial lacustrine deposits IGL_LA D

Interglacial deposits, undifferentiated IGL A

Interglacial fluvial deposits IGL_FL C

Interglacial marine deposits, undifferentiated IGL_MA E

Interglacial marine shore beach deposits IGL_MS FGLACIAL

DEPOSITSDiamicton DM

Glacial deposits GL [

Crag with tail GL_CG \

Hummocky glacial and morainic deposits GL_HMC ]

Muddy sand and gravel GL_MSG ^

Glaciofluvial deposits, undifferentiated GFL K

Baginton Sand and Gravel GFL_B M

Burtle Beds, GFL_BU ~

Corton Formation GFL_CO

Deltaic and / or fan deposits GFL_D NLochton Sand and Gravel Formation (East Grampian Drift

Group)GFL_EG

Eagle Moor Sand and Gravel GFL_EM O

Holderness Formation GFL_HO

Ice-contact GFL_IC P

Glaciofluvial

deposits

RAISED MARINE

DEPOSITS

(continued)

INTERGLACIAL

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Irish Sea Ice Sheet (sheet deposits) GFL_IT Irish Sea Ice Sheet, undifferentiated GFL_I

Lowestoft Formation GFL_L

Drumlithie Sand and Gravel (Mearns Drift Group) GFL_MD

Moreton Member GFL_MT Q

Overstrand Formation GFL_O

Oadby Member GFL_OD RPre-Devensian GFL_PD S

Sheet deposits, 1st GFL_S1 T

Sheet deposits, 2nd GFL_S2 U

Sheet deposits, 3rd GFL_S3 V

Sand and gravel GFL_SG W

Sheet deposits GFL_SH X

Wigston Sand and Gravel GFL_WI

Woolford Heath Member GFL_WL Y

Wolston Sand and Gravel GFL_WO Z

Glaciolacustrine Glaciolacustrine deposits GLA a

Glaciolacustrine deposits 1 GLA1 k

Glaciolacustrine deposits 2 GLA2 l

Clay GLA_C b

Delta deposits, sand and gravel GLA_DG c

Delta deposits GLA_DL d

Delta deposits, sand GLA_DS e

Glen Dye Silts Formation (East Grampian Drift Group) GLA_EG

Findern Clay GLA_FC f

Silt and clay GLA_M g

GLACIAL

DEPOSITS

Glaciofluvial

Deposits (continued)

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Glaciomarine

Ury Silts Formation (Mearns Drift Group) GLA_MD Silt and clay, 1st GLA_M1 h

Rotherby clay GLA_RO

Sand GLA_S _

Sand and gravel GLA_SG j

Glaciomarine deposits GLM m

Ardersier Silts Formation, GLM_A Till Till or boulder clay TIL n

Benholm Clay Formation TIL_BB

Wragby, Calcethorpe & Belmont TIL_C q

Corton Formation TIL_CO u

Banchory Till Formation (east Grampian Drift Group) TIL_EG

Holderness Formation TIL_HO v

Irish Sea Ice Sheet TIL_I

Lowestoft Formation TIL_L w

Marsh Till TIL_M r

Mill of Forest Formation (Mearns Drift Group) TIL_MD

Moreton Member TIL_MT s

Overstrand Formation TIL_O |

Oadby Till TIL_OD x

Oadby Till (Lias-rich) TIL_OL y

Oadby Till (Trias-rich) TIL_OT

Ruddington Moor Till TIL_RM }

Thrussington Till TIL_TH {

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Anker Sand and Gravel SG_A aChelsfield Gravel SG_CH b

Dunsmore Gravel SG_DG c

Erratic ERRAT `

Hathern Gravel SG_HAT d

Sand and gravel, age uncertain SG_U f

Stanmore Gravel SG_ST eUpton Sand and Gravel SG_UP g

Well Hill Gravel SG_WH h

Fall of glacial drainage channel GDC_FA B

Glacial drainage channel, front GDC_F A

Glacial striae GLST F

Glacial striae direction of ice flow GLSTI G

Kettle hollow KH H

Roche moutonne GL_RM D

Roche moutonne with striae GL_RMS E

Rockhead or bedrock ROCK I

Single sided glacial drainage channel GDC_S C

Acid tuff RS_ATF L

Acid tuffite RS_ATT M

Aplite RS_APL K

Basic tuff RS_BTF \

Basic tuffite RS_BTT ]

ROCK SYMBOLS

LANDFORM

MISCELLANEOUS

DRIFT

15


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Cataclastic (Metamorphic) RS_BEMN

Cataclastic rocks RS_BET O

Foliated RS_FOL R

Grandiorite X RS_GRX S

Microdiorite RS_P W

Microgranite RS_FG P

Mylonitic (metamorphic) RS_MU1V

Mylonitic rocks RS_MU U

Pegmatite RS_PEG X

Pseudotachylitic RS_KAP T

Rhyolite RS_R Y

Sheared rock (igneous and metamorphic) RS_SH Z

Corrugated strata, low dip S_ISCL ?

Bedding Corrugated foliation S_ISCF c

Cross-bedding of foresets S_CBF A

Direction of younging S_DY C

Dune-bedding S_DB B

General dip S_GDIP D

General dip, underground S_GDUP E

Gently inclined strata S_GIS F

Gently undulating strata S_GUS G

Highly inclined strata S_ISH L

Horizontal overturned strata S_HOS H

Horizontal strata S_HS I

Inclined strata 1 S_IS1 J

ROCK SYMBOLS

(continued)

STRUCTURALSYMBOLS

16


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STRUCTURAL

SYMBOLS

Bedding (continued) Inclined strata 2 S_IS2 K

Inclined strata, overturned S_ISO M

Inclined strata, uncertain S_ISU O

Inclined strata, underground S_ISUD R

Strike of strata S_STS W

Undulating bed, inclined S_UIS T

Undulating vertical strata S_UVS UVertical strata S_VS V

Horizontal foliation S_HF k

Inclined foliation S_IF o

Strike of foliation S_STF l

Undulating foliation S_UF m

Vertical foliation S_VF n

Vertical foliation, general corrugated strike S_VFC j

Direction of cleavage S_DC Y

Horizontal cleavage S_HC Z

Inclined cleavage S_IC [

Inclined cleavage, sandstone S_ICS \

Sheared rock S_SR b

Strike of cleavage S_STC ^

Undulating cleavage, inclined S_UCI _

Vertical cleavage S_VC `

Vertical cleavage in sandstone S_VCS a

Horizontal joint S_HJ

Inclined joint S_IJ

Vertical joint S_VJ

Cleavage /

schistosity

Foliation or

layering

17


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Linear structures

Horizontal lineation S_HLI

Plunging lineation S_PLI

Vertical lineation S_VLI

Igneous rocks Horizontal flow jointing S_HFJ w

Horizontal primary crystal alignment S_HPCA s

Horizontal primary planar fabric in igneous rocks S_HPPF t

Horizontal relict, planar fabric in plutonic rocks S_HR uHorizontal welding foliation S_HWF v

Inclined flow jointing S_IFJ w

Inclined primary crystal alignment S_IPCA x

Inclined primary planar fabric S_IPP y

Inclined primary planar fabric, overturned S_IPPO z

Inclined relict, planar fabric in plutonic rocks S_IR {

Inclined welding foliation S_IWF |

Strike of primary planar fabric S_STPP }

Strike of welding foliation S_STWF ~

Vertical flow jointing S_VFJ

Vertical primary crystal alignment S_VPCA

Vertical primary planar fabric S_VPP

Vertical relict, planar fabric in plutonic rocks S_VR

Vertical welding foliation S_VWF

Major folds Anticline axial plane S_ACAP

Synclinal axial plane S_SCAP

Synform axial plane S_SFAP

18


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STRUCTURAL

SYMBOLS

Minor folds Axis of minor anticline S_AMA

Axis of minor fold S_AMF

Axis of minor syncline S_AMS

Horizontal axial plane of minor fold S_HAPM

Horizontal axis of minor anticline S_HAMA

Horizontal axis of minor fold S_HAMF

Horizontal axis of minor fold, phase 1 S_HAM1 Horizontal axis of minor monocline S_HAMM

Horizontal axis of minor syncline S_HAMS

Inclined axial plane of minor fold S_IAPM

Locality with refolded minor folds S_LOC

Minor fold, low angle of plunge S_MFLA

Overturned anticline S_ANO

Overturned syncline S_SYNO

Plunge axis of minor fold S_PMF

Strike axial plane minor fold S_STAM

Vertical axial plane of minor fold S_VAPM

Vertical axis of minor fold S_VAMF

Vergence

Axis of minor fold showing direction of vergence S_AMFV

Dextral vergence of minor fold S_DXVM

Direction of vergence of minor fold S_DVMF

Neutral vergence of minor fold S_NVMF

Sinistral vergence of minor fold S_SVMF

19


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Faults and related

structures

Fault movement FLT_MV d

Fault terminator FLT_TR f

Mineral vein dip S_MVFD g

Strike slip fault FLT_S e

Thrust barb TBARB h

OTHER SYMBOLS

Adit ADIT AAdit, abandoned ADIT_A B

Adit, unknown orientation ADIT_U C

Borehole BH D

Borehole, uncertain BH_UN F

Borehole, underground BH_UD E

Dip of igneous contact S_DIP

TFossil locality FOSSL J

Inclination of dyke S_IDY k

Location, with specific note SPNT W

Mineral locality MLOC L

Photo in BGS collection PHOTO N

Pit or mine shaft PIT O

Pit or mine shaft, abandoned, or denehole PIT_A P

Pit or mine shaft, abandoned, site uncertain PIT_U Q

Pit shaft, underground PIT_UD R

Rock slice, petrographic SLICE V

Site of former mine SFM U

Small isolated exposure EXP I

Spring or group of springs SPRING j

20


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OTHER SYMBOLS

(continued)

Surface section SURF_S XSwallow hole SWH Y

Trench TRE [

Underground spot level UDSPOT \

Well BH_WL G

21


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22

2.1

SYMBOLS

INDEX LISTED BY DESCRIPTION

2.2


28/54

2.2 SYMBOLS INDEX LISTED BY DESCRIPTION

DESCRIPTION REF NAME SYMBOL A-Z

Acid tuff RS_ATF L A

Acid tuffite RS_ATTM

Adit ADIT A

Adit, abandoned ADIT_A B

Adit, unknown orientation ADIT_U C

Alluvial fan deposits ALV_FN G

Alluvial fan deposits, gravel ALV_FG F

Alluvium ALV AAlluvium, 1 ALV_1 B

Alluvium, clay ALV_C C

Alluvium, sand and gravel ALV_SG H

Anker Sand and Gravel SG_A a

Anticline axial plane S_ACAP

Anticline, overturned S_ANO

Aplite RS_APL K

Ardersier Silts Formation, glaciomarine deposits GLM_A

Arun Terrace Deposits, 1st RT_A1 K

Arun Terrace Deposits, 2nd RT_A2 L

Arun Terrace Deposits, 3rd RT_A3 M

Arun Terrace Deposits, 4th RT_A4 N

Arun Terrace Deposits, 5th RT_A5 O

Arun Terrace Deposits, 6th RT_A6 P

Arun Terrace Deposits, 7th RT_A7 Q

Axis of minor anticline S_AMA

Axis of minor fold S_AMF

Axis of minor fold showing direction of vergence S_AMFV

Axis of minor syncline S_AMS

23


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Baginton Sand and Gravel, glaciofluvial deposits GFL_B M B

Balderton Sand and Gravel RT_BDN YBanchory Till Formation (east Grampian Drift Group), till TIL_EG

Bank deposits MA_B H

Bank deposits, sand MA_BS L

Bank Farm Terrace RT_B U

Barroway Drove Beds, marine deposit MA_BDB D

Basic tuff RS_BTF\

Basic tuffite RS_BTT ]

Basin peat PEA_BA l

Bassingfield Sand and Gravel RT_BS b

Beach deposits, raised marine deposits RM_SB2 r

Beaconsfield Gravel RT_BC9 X

Beenham Grange Gravel RT_BG2 \

Beenham Stocks Gravel RT_BS7 c

Beeston Sand and Gravel RT_BEE Z

Belton Sand and Gravel RT_BEL [

Benholm Clay Formation, till TIL_BB

Birstall Sand and Gravel RT_BIR ^

Black Park Gravel RT_BPG a

Blackwater Terrace Deposits, 3rd RT_B3 V

Blackwater Terrace Deposits, 4th RT_B4 W

Blanket head / regolith HEAD_R K

Blanket peat PEA_BL m

Blockfield BLOC E

Blown sand BLS W

Blown sand, 1 BLS_1 X

24


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Bog iron ore ORE j B

Borehole BH DBorehole, uncertain BH_UN F

Borehole, underground BH_UD E

Boyn Hill Gravel RT_BH ]

Brackish lagoon RM_BL

Bramley Wey Terrace Deposits, 2nd RT_BW2 d

Brickearth BRK_ YBrooksby Sand and Gravel RT_BKY

Bucklebury Gravel RT_BK8 _

Bunny Sand and Gravel RT_BN

Burtle Beds, glaciofluvial deposits GFL_BU ~

Bytham Sand and Gravel RT_BTH

Caesar's Camp Gravel RT_CCG C

Calcareous tufa TUFA_C h

Cataclastic (metamorphic) RS_BEM N

Cataclastic rocks RS_BET O

Chelsfield Gravel SG_CH b

Cheltenham Sand and Gravel ALV_CH D

Chenier deposits MA_CH `

Clay, glaciolacustrine deposits GLA_C b

Clay-with-flints CWF G

Coastal barrier deposits MA_CB E

Coastal barrier, sand and gravel MA_SGC R

Coastal zone deposits, undifferentiated MA_CZ a

Combe Member (river terrace) RT_CM e

Coombe Deposits COD F

25


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Corbets Tey Gravel RT_CY C

Corrugated foliation S_ISCF c

Corrugated strata, low dip S_ISCL ?

Corrugated strike (general) vertical foliation S_VFC j

Corton Formation, glaciofluvial deposits GFL_CO

Corton Formation, till TIL_CO u

Crag with tail GL_CG \

Cross-bedding of foresets S_CBF ADartford Silt (brickearth) BRK_DA Z D

Daylesford Member, 1st river terrace RT_DM1 g

Debris cone DCON H

Delta deposits GLA_DL d

Delta deposits, sand GLA_DS e

Delta deposits, sand and gravel, raised marine RM_DS k

Delta deposits, sand and gravel, glacial GLA_DG c

Deltaic and / or fan deposits GFL_D N

Dextral vergence of minor fold S_DXVM

Diamicton DM

Diatomite DIAT a

Diatomite, fluvial DIAT_F b

Dip of igneous contact S_DIP T

Dip, general S_GDIP D

Dip, general, underground S_GDUP E

Dip, mineral vein S_MVFD g

Direction of cleavage S_DC Y

Direction of vergence of minor fold S_DVMF

Direction of younging S_DY C

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Dollis Hill Gravel RT_DH f D

Drumlithie Sand and Gravel (Mearns Drift Group), glaciofluvial

depositsGFL_MD

Dry valley deposits ALV_DV E

Dune-bedding S_DB B

Dunsmore Gravel SG_DG c

Eagle Moor Sand and Gravel RT_EM E

Eagle Moor Sand and Gravel, glaciofluvial deposits GFL_EM O

Eggington Common Sand and Gravel RT_EC hEnfield Silt (brickearth) BRK_ES [

Erratic ERRAT `

Etwall Sand and Gravel RT_ET j

Fall of glacial drainage channel GDC_FA B F

Fan deposits and / or deltaic GFL_D N

Fault movement FLT_MV d

Fault terminator FLT_TR f

Fault, strike slip FLT_S e

Fen peat PEA_FN n

Fen sand and gravel RT_FG k

Findern Clay GLA_FC f

Finsbury Gravel RT_FIN l

Flandrian deposits RM_FL l

Fluvial sand and gravel RT_FSG n

Foliated RS_FOL R

Fossil locality FOSSL J

Freeland Member river terrace RT_FR m

Fulbeck Sand and Gravel RT_FUL o

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General dip S_GDIP D G

General dip, underground S_GDUP E

Gently inclined strata S_GIS F

Gently undulating strata S_GUS G

Gerrards Cross Gravel RT_GC r

Glacial deposits GL [

Glacial drainage channel, front GDC_F A

Glacial striae GLSTF

Glacial striae direction of ice flow GLSTI G

Glaciofluvial deposits, undifferentiated GFL K

Glaciolacustrine deposits GLA a

Glaciolacustrine deposits 1 GLA1 k

Glaciolacustrine deposits 2 GLA2 l

Glaciomarine deposits GLM mGlen Dye Silts Formation (East Grampian Drift Group),

glaciolacustrine depositsGLA_EG

Godalming Wey Deposits, 1a river terrace deposit RT_G1A p

Godalming Wey Deposits, 1b river terrace deposit RT_G1B q

Godalming Wey Deposits, 1st river terrace deposit RT_GW1 s

Godalming Wey Deposits, 2nd river terrace deposit RT_GW2 t

Godalming Wey Deposits, 3rd river terrace deposit RT_GW3 u

Grandiorite X RS_GRX S

Gravelly head HEAD_G J

Hackney Gravel RT_HA x H

Hanborough Member river terrace RT_H4 w

Hathern Gravel SG_HAT d

Head 1 HEAD1 M

Head 2 HEAD2 N

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Head or hillwash HEAD I H

Head, Burton Lazars HEADBL pHead, Colluvium HEAD_C q

Head, Little Dalby HEADLD r

Head, Pen Hill HEADPH s

High raised marine deposits RM_2 g

Highest raised marine deposits RM_3 h

Highly inclined strata S_ISH L

Hill peat PEA_H o

Holderness Formation, glaciofluvial deposits GFL_HO

Holderness Formation, till TIL_HO v

Holme Pierrepont Sand and Gravel RT_HP z

Horizontal axial plane of minor fold S_HAPM

Horizontal axis of minor anticline S_HAMA Horizontal axis of minor fold S_HAMF

Horizontal axis of minor fold, phase 1 S_HAM1

Horizontal axis of minor monocline S_HAMM

Horizontal axis of minor syncline S_HAMS

Horizontal cleavage S_HC Z

Horizontal flow jointing S_HFJ w

Horizontal foliation S_HF k

Horizontal joint S_HJ

Horizontal lineation S_HLI

Horizontal overturned strata S_HOS H

Horizontal primary crystal alignment S_HPCA s

Horizontal primary planar fabric in igneous rocks S_HPPF t

Horizontal relict, planar fabric in plutonic rocks S_HR u

29


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Horizontal strata S_HS I H

Horizontal welding foliation S_HWF v

Hummocky glacial and morainic deposits GL_HMC ]

Ice-contact, glaciofluvial deposits GFL_IC P I

Ilford Silt (brickearth) BRK_IL \

Inactive scree / talus SCRE_I T

Inclination of dyke S_IDY k

Inclined strata (highly) S_ISH LInclined axial plane of minor fold S_IAPM

Inclined cleavage S_IC [

Inclined cleavage, sandstone S_ICS \

Inclined flow jointing S_IFJ w

Inclined foliation S_IF o

Inclined joint S_IJ

Inclined primary crystal alignment S_IPCA x

Inclined primary planar fabric S_IPP y

Inclined primary planar fabric, overturned S_IPPO z

Inclined relict, planar fabric in plutonic rocks S_IR {

Inclined strata (gently) S_GIS F

Inclined strata 1 S_IS1 J

Inclined strata 2 S_IS2 K

Inclined strata, overturned S_ISO M

Inclined strata, uncertain S_ISU O

Inclined strata, underground S_ISUD R

Inclined welding foliation S_IWF |

Interglacial lacustrine deposits IGL_LA D

Interglacial deposits, undifferentiated IGL A

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Interglacial fluvial deposits IGL_FL C I

Interglacial marine deposits, undifferentiated IGL_MA EInterglacial marine shore beach deposits IGL_MS F

Intertidal RM_IN m

Intertidal deposits, undifferentiated MA_I b

Irish Sea Ice Sheet, (sheet deposits) glaciofluvial deposits GFL_IT

Irish Sea Ice sheet, till TIL_I

Irish Sea Ice Sheet, undifferentiated, glaciofluvial deposits GFL_I Kempton Park Gravel RT_KP { K

Kettle hollow KH H

Knighton Sand and Gravel RT_KN |

Lacustrine delta deposits LAC_D ~ L

Lacustrine deposits LAC }




Lacustrine shoreface and beach deposits LAC_SB

Lacustrine shoreface and beach deposits 5 LAC_S5

Landslip, small area MSM_L P

Langley Silt (brickearth) BRK_LS ]

Late Glacial, raised marine deposits RM_LG |

Leaves Green Gravel RT_LG }

Leen Sand and Gravel RT_LN

Little Hereford river terrace RT_H v

Locality with refolded minor folds S_LOC

Location with specific note SPNT W

Lochton Sand and Gravel Formation (East Grampian Drift Group) GFL_EG

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Loess LOESS _ L

Low raised marine deposits RM_1 f

Lowestoft Formation, glaciofluvial deposits GFL_L

Lowestoft Formation, till TIL_L w

Lynch Hill Gravel RT_LH ~

Made ground, above surface, small area ART_AS C M

Made ground, backfilled pit, small area ART_BP A

March gravels, raised marine deposits RM_MG o

Marine band MA_MB I

Marine beach deposits MA_BE C

Marine deposits, sand and gravel MA_SG Q

Marine deposits, undifferentiated MA_MA G

Marsh till TIL_M r

Microdiorite RS_P W

Microgranite RS_FG P

Mill of Forest Formation (Mearns Drift Group), till TIL_MD

Mineral locality MLOC L

Mineral vein dip S_MVFD g

Minor fold, low angle of plunge S_MFLA

Moreton Member, glaciofluvial deposits GFL_MT Q

Moreton Member, till TIL_MT s

Mud deposits MA_M F

Muddy sand and gravel, glacial deposits GL_MSG ^

Mylonitic (metamorphic) RS_MU1 V

Mylonitic rocks RS_MU U

32


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Netley Heath marine deposits MA_NET N

Neutral vergence of minor fold S_NVMF

Nor Valley Clay, raised marine deposits RM_NV p

Nordelph Peat PEAT_N e

Northmoor Member river terrace RT_N1

Oadby Member, glaciofluvial deposits GFL_OD R O

Oadby Till TIL_OD x

Oadby Till (Lias-rich) TIL_OL yOadby Till (Trias-rich) TIL_OT

Ockbrook Sand and Gravel RT_Ock

Overstrand Formation, glaciofluvial deposits GFL_O

Overstrand Formation, till TIL_O |

Overturned (horizontal) strata S_HOS H

Overturned anticline S_ANO

Overturned inclined strata S_ISO M

Overturned syncline S_SYNO

Peat PEAT c P

Peat flow PEAT_F d

Pebbly clay and sand PBS Q

Pegmatite RS_PEG X

Photo in BGS collection PHOTO N

Pit or mine shaft PIT O

Pit or mine shaft, abandoned, or denehole PIT_A P

Pit or mine shaft, abandoned, site uncertain PIT_U Q

Pit shaft, underground PIT_UD R

Plunge axis of minor fold S_PMF

Plunging lineation S_PLI

33


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Postglacial, raised marine deposits RM_PG q P

Pre-Devensian GFL_PD SPseudotachylitic RS_KAP T

Raised marine delta deposits RM_D j R

Raised marine deposits RM e

Raised marine deposits, clay RM_C {

Raised marine deposits, high RM_2 g

Raised marine deposits, highest RM_3 h

Raised marine deposits, low RM_1 f

Raised marine deposits, mud RM_M n

Raised tidal flat deposits of Flandrian age RM_TRF z

Rhyolite RS_R Y

Rissington Member river terrace RT_RM1

River Avon Deposits, 1st river terrace RT_AV1 S

River Avon Deposits, 2nd river terrace RT_AV2 T

River Severn Deposits, 1st river terrace RT_S1

River Severn Deposits, 2nd river terrace RT_S2

River Severn Deposits, 3rd river terrace RT_S3

River terrace deposits, 1st RT01

River terrace deposits,1a RT01A

River terrace deposits,1b RT01B

River terrace deposits,1c RT01C

River terrace deposits, 2nd RT02

River terrace deposits, 1st - 2nd RT01-2

River terrace deposits, 2nd - 3rd RT02-3

River terrace deposits, 3rd RT03


34


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River terrace deposits, 5th RT05 R

River terrace deposits, 5th - 6th RT05-6 River terrace deposits, 6th RT06





River terrace deposits, 11th RT11 River terrace deposits, 12th RT12




River terrace deposits, undifferentiated RT_U

River Worfe Deposits, undifferentiated RT_WF

River Worfe Terrace Deposits, 1st RT_WF1

River Worfe Terrace Deposits, 2nd RT_WF2

River Wye Terrace Deposits, 1st RT_WY1

River Wye Terrace Deposits, 2nd RT_WY2

Roche moutonne GL_RM D

Roche moutonne with striae GL_RMS E

Rock slice, petrographic SLICE V

Rockhead or bedrock ROCK I

Rother Terrace Deposits, 1st RT_RO1

Rother Terrace Deposits, 2nd RT_RO2

Rother Terrace Deposits, 3rd RT_RO3



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Rother Terrace Deposits, undifferentiated RT_ROU

Rotherby Clay, glaciolacustrine deposits GLA_RO Ruddington Moor Till TIL_RM }

Saltmarsh deposits MA_SM W S

Sand and gravel, age uncertain SG_U f

Sand and gravel, glaciofluvial deposits GFL_SG W

Sand and gravel, glaciomarine deposits GLA_SG j

Sand and gravel, raised marine deposits RM_SG u

Sand and silt deposits MA_SSI X

Sand deposits MA_S K

Sand in clay-with-flints CWF_S D

Sand, glaciolacustrine deposits GLA_S _

Sand, tabular or sheet deposits MA_SST Y

Sandy headHEAD_S

LScree / talus SCRE R

Shakenhurst Terrace RT_S

Sheared rock S_SR b

Sheared rock (igneous and metamorphic) RS_SH Z

Sheet deposits, 1st, glaciofluvial deposits GFL_S1 T

Sheet deposits, 2nd, glaciofluvial deposits GFL_S2 U

Sheet deposits, 3rd, glaciofluvial deposits GFL_S3 V

Sheet deposits, glaciofluvial deposits GFL_SH X

Shell bank (mussel band) MA_SHB U

Shell marl SLM g

Shepperton Gravel RT_SH

Sherborne Member, 1st terrace RT_SM1

Sherborne Member, 2nd terrace RT_SM2

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Shore beach deposits of Flandrian age RM_SBF s S

Shoreface deposits MA_SF d

Shoreface deposits, sand MA_SFS P

Shoreface deposits, sand and gravel MA_SSG S

Silchester Gravel RT_SL6

Silt and clay, 1st, glaciolacustrine deposits GLA_M1 h

Silt and clay, glaciolacustrine deposits GLA_M g

Silt and clay, raised marine deposits RM_SC t

Silt deposits MA_SI V

Single sided glacial drainage channel GDC_S C

Sinistral vergence of minor fold S_SVMF

Site of former mine SFM U

Small isolated exposure EXP I

Spring or group of springs SPRING j

Stanmore Gravel SG_ST e

Storm beach deposits MA_SB c

Storm beach deposits, 1 MA_SB1 M

Storm beach deposits, gravel MA_SBG O

Strike axial plane minor fold S_STAM

Strike of cleavage S_STC ^

Strike of foliation S_STF l

Strike of primary planar fabric S_STPP }

Strike of strata S_STS W

Strike of welding foliation S_STWF ~

Strike slip fault FLT_S e

Submerged forest PET_SF f

Subtidal, raised marine deposits RM_SU v

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Summertown Radley Member, 2nd terrace RT_SR2 S

Supratidal deposits undifferentiated MA_SU T

Surface section SURF_S X

Surrey Hill Gravel RT_SHG

Swallow hole SWH Y

Synclinal axial plane S_SCAP

Syncline, overturned S_SYNO

Synform axial plane S_SFAP Syston Sand and Gravel RT_SYS

Tabular or sheet deposits MA_ST Z T

Talus / inactive scree SCRE_I T

Talus / scree SCRE R

Taplow Gravel RT_TAP

Terrington Beds, raised marine deposits RM_TB w

Thatcham Gravel RT_TH3

Thrussington Till TIL_TH {

Thrust barb TBARB h

Tidal flat deposits MA_TF ^

Tidal flat deposits, 1 MA_TF1 [

Tidal, river or creek deposits MA_TR \

Tidal, river or creek deposits, mud MA_TRM ]

Tidal, river or creek deposits, mud and gravel MA_TMG J

Tidal, river or creek deposits, raised marine deposits RM_TF x

Till or boulder clay TIL n

Tottenhill Gravels, raised marine deposits RM_TO y

Trench TRE [

Tufa TUFA k

38


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Underground spot level UDSPOT \ U

Undulating bed, inclined S_UIS T

Undulating cleavage, inclined S_UCI _

Undulating foliation S_UF m

Undulating strata (gently) S_GUS G

Undulating vertical strata S_UVS U

Upton Sand and Gravel SG_UP g

Ury Silts Formation (Mearns Drift Group), glaciolacustrine deposits GLA_MD Valley bottom head HEAD_V t V

Vertical axial plane of minor fold S_VAPM

Vertical axis of minor fold S_VAMF

Vertical cleavage S_VC `

Vertical cleavage in sandstone S_VCS a

Vertical flow jointing S_VFJ

Vertical foliation S_VF n

Vertical foliation, general corrugated strike S_VFC j

Vertical joint S_VJ

Vertical lineation S_VLI

Vertical primary crystal alignment S_VPCA

Vertical primary planar fabric S_VPP

Vertical relict, planar fabric in plutonic rocks S_VR

Vertical strata S_VS V

Vertical strata, undulating S_UVS U

Vertical welding foliation S_VWF

Wanlip Sand and Gravel RT_WAN W

Warp ALV_W I

Washover deposits MA_WO _

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Well BH_WL G W

Well Hill Gravel SG_WH hWestland Green Gravel RT_WG

Westmill Lower Gravel RT_WM

Whatton Sand and Gravel RT_WH

Wigston Sand and Gravel, glaciofluvial deposits GFL_WI

Winter Hill Gravel RT_WH7

Wolston Clay (brickearth) BRK_WC ^Wolston Sand and Gravel, glaciofluvial deposits GFL_WO Z

Wolvercote Member river terrace RT_WO3

Woodford Gravel RT_WD

Woolford Heath Member, glaciofluvial deposits GFL_WL Y

Worked ground, small area ART_WG B

Wragby, Calcethorpe & Belmont, till TIL_C q

40


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41

AREA ORNAMENTS

LISTED BYDESCRIPTION

3


47/54

.

.

.

.

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.

.

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.

.

.

.

.

..

..

..

..

..

..

..

..

.

.

3 AREA ORNAMENTS

Gneiss

GNEISS

GRAV

Gravel

Graphiticschist

GR_SCH

Greywacke

GWACKE

Gypsum

GYPS

.

.

.

.

CHLK

Chalk

AGGLOM(reference name)

Agglomerate

ANHY CLST

Anhydrite Claystone

ARE_ST CONG

ConglomerateArenaceousseatearth

Coursedrubble

CRSRB

Crushed rock

CR_RCK

BREC

Breccia

Calcareoustufa

CALTUF

CAT

Cataclasticrock

BCLAY

Boulder clay

Blown sand

BLSND

Disturbedground

DIST

Dolomite

DOLOM

FOUND

Founderedstrata

Generaloverprintstipple

GRAN_V

Graniteveining

Granite

GRAN

LISTED BY DESCRIPTION

STIPP

42


48/54

3 AREA ORNAMENTS

LMST

Limestone

IG

Igneous

Massivelimestone

LMST_M

Metasediment

METASD

Mudstone

MDST

Marble

MARBLE

Limestonebeds

LMST_B

Lava and tuff

LAV_TU

INFILL

Landscapedground

LASC

LAND

Lava

LAVA

.

.

.

.

Limestonebands

LMST_D

LMST_T

Limestonethin bedpartings

.

.

.

MADE

Madeground

MARINE

MIGM

Migmatisation

LMST_G

Mixed groupwithcalc-schist/limestone

Ooidallimestone

LMST_O


(reference name)

Landslip

Marine

overprint(white)

Infilledground

ST_YEL

ST_BLK

ST_CYN

ST_OR

ST_MAG

Overprintstipplefor variousrock typesMagenta

Overprintstipplefor variousrock typesYellow

Overprintstipple forvariousrock typesBlack

Overprintstipple

for variousrock typesCyan

Overprintstipplefor variousrock typesOrange

43


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3 AREA ORNAMENTS

LMST_S

Sandylimestone

Siltysandstone

SLTSND

SLTST

Siltstone

TUFF

Tuff

Turbidite

TURB

GNE_RW

Reworkedgneisses

LMST_P

Pisoidallimestone

LMST_R

Sodium salt

SALT

Sand

SAND

SHALE

Shale

PEBBLE

Pebbles

.

.

.

.

.

PELITE

Pelite

Pegmatiteor veincomplexes

PEG

PSAMM

.

.

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.

QUART

Quartzite

RNRBL

Randomrubble

Rubblylimestone;poorlybedded

SHMRL

Shell marl

SLTMD

Siltymudstone


(reference name)

Psammite

RECL

Reclaimedground

XENO

Xenoliths

WORK

Workedground

Sandstone

SNDST

44


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45

LINE STYLES


4


51/54

Base of lava flow

Axis of large-scale glacial flute

Axis of large-scale glacial gouge

Backfeature marking former coastline,arrowheads denote uphill side

Backfeature marking former lake margin,arrowheads denote uphill side

Axial plane trace of major recumbant fold

Axial plane trace of major anticline

Axial plane traces of closely spaced anticline/syncline pair

Axial plane trace of major antiform

Backfeature of terrace margin, arrowheadsdenote uphill side

Buried channel or valley margin

Buried cliffline, crossmarks on beach side

Coal, inferred

Axial plane trace of major syncline

Axial plane trace of major synform

Coal, observed

Axial plane trace of major reclined or vertical fold

Axial plane traces of closely spaced major antiform/synform pair

Coal seam, washout

Coal seam contour

V

V

V

4 LINE STYLES LISTED BY DESCRIPTION

Aeromagnetic/Bouguer anomaly

Cementstone

Coal, sub-Triassic

Cliffline, crossmarks on beach side

cm cm cm cm

46


52/54

Crestline of elongate mound

Crestline of linear feature

Fault, normal inferred

Fault, normal observed

Fault shearing zone, observed

Fault brecciation zone, inferred

Fault brecciation zone, observed

Fault shearing zone, inferred

Fossil horizon, lingula band

Fossil horizon, eustheria band

Fault, thrust or slide, inferred

Fault, thrust conjectural

Fault, thrust observed

Fault, strike-slip

Fault, reverse

Fossil horizon, brachiopod band

Fossil horizon, algal band

Fossil horizon, coral band

Geological boundary, drift

Fossil horizon, planolites band


Geological boundary, artificial

Incrop of fault at unconformity (sub-Triassic)

47

B B B B B

C C C C C

E E E E E

P P P P P

Crestline of esker (blue, orange or magenta)

Drumlin or dune line at base of mound


53/54

Igneous cutting margin, observed

Igneous plutons

Limit of diorite / grandiorite

Glacial meltwater channel margins

Limit of granite vein complex

Limit of glacial advance, Scottish readvance limit

Ironstone, observed

Lineament, probably fracture related

Limit of granite / pegmatite vein complex,within area of veining

Glacial meltwater or overflow channel, centre line

Igneous cutting margin, crossmarks on sideof younger rock, inferred

Ironstone, inferred

Limit of transgressive pegmatite veins,

within areas of veins

Limit of glacial advance, Gosforth oscillation limit

VV V V V V V V V V V V V V V


Hydrothermal

Incrop of coal

Incrop of marine band

Kettle hole

Geological boundary, mass movement

Geological boundary, solid observed

Geological boundary, solid inferred

Geological boundary, solid intrusive

Geological boundary, solid intrusive observed

Limit of migmatisation, towards migmatites

48

H H H H


54/54

Marine band

Mussel band

Outer edge of terrace

Tonstein

Trace of lower hinge of major monocline

Marked break in slope, arrowheads denote uphill side

al

Pb

Oil-shale, inferred

Oil-shale, observed

Mass Movement boundary

Mining area, subsurface

Line of split coal seam, ornament on split side

Man made deposit boundary

Mineral vein, with name of mineral

Quarry

v v v

sa sa sa sa


Sandstone bed

Subsidence hollow, drift (not corresponding)

Subsidence hollow, corresponding to drift boundary

Subsidence hollow, solid (not corresponding)

Subsidence hollow, corresponding to solid boundary

Magnetic layer or boundary

Metamorphic aureole, towards intrusion

Metamorphic zone boundary with mineral or zone number

international geological symbol

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