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Q60
(881 -10023) STRUCTURAL MAPPING FROM 1181 -12500ASS-SANDSAT IMAGERY: A PROPOSED METHODOLOGT
E FOR INTERNATIONAL GEOLOGICAL CORRELATIONSTUDIES (Instituto de Pesquisas Espac3 ais, Uu,clas
^,rt Sao Jose) 10 p HC A02/MF A01 CSCL 08B G3/43 00023
a
RECEIVED BYK M STI FACKM
QATL 16 - r. , yp
DW NO. oo 9PROCESSED BYNASA STI FACtUW,ESA • SDS [] AIAA
CONiEItlO 1'ACWNAL Of 09"NVOLVIVENTO CIENTOW0 E TEC NEWUrw
INSTITITI itPESQUISSS ESPAC
"Made available under NASA sponsorthtpin the interest of early and We dis-semination of Earth Resources SurveyProgram information and without liabilityfor any use made thereof."
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^e
i
1. Class ification INPE-COM.41RPE 2. Period
C.D.U.• 528.711.7.-550.3
3.Key Words (selected by the author)
REMOTE SENSINGCONTINENTAL DRIFTGEOLOGICAL CORRELATION
S.Report NQ 6.Date
INPE-2787-RPE1159 June, 1980
8. title and Sub-title
STRUCTURIL MAPPING FROM MSS-LANDSAT IMAGERY:A PROPOSED METHODOLOGY FOR INTERNATIONAL
GEOLOGICAL CORRELATION STUDIES
10-Sector DSRjGMI Code 30.311
12.Authorship Edison CrepaniPaulo Roberto Martini
13-Signature of the responsible ^z^,,v
4.DistributionCriterion
internal F-1
external J
7-. i s
ene Anto o Novaes
9.Authorized by I
Nelson sus Parus adaDirector
11.N9 of Copies 10
14.N9 of Pages .10
15.Price
u
16.S mmary/NotesA methodology is proposed for international geological cor-
relation studies based on LANDSAT-MSS imagery, FuZlard's et al. model ofcontinental fit and compatible structural trends between Northeast Braziland the West African counterpart. Six extensive lineaments in the Brazil-ian study area are mapped and discussed according to their regional behaviorand relation to the adjacent continental margin. Among the first conclu-sions, correlations were found 'between the Sobral Pedro II Lineament andthe megafauZts that surround the West Af!rican Craton; and the PernambucoLineament with the Ngaurandere Lineament in Cameroon. Ongoing research tocomplete the methodological stages will include the mapping of the WestAfrican structural framework, reconstruction of the pre-drift puzzle andan analysis of the counterpart correlations.
ORIGINAL PAGE ISOP POOR QUALITY
17.Remarks
Presented in the Fourteenth International Symposium onRemote Sensing o f Environment - 23-30 April, 1980 - San Jose, Costa Rica.
rtAPPINC FROM ".*,S - I A *4 DSA T 1. AGE PY POSEUkT kVC _TI; RA L 4 A rRO III. Tilt) lju' . OVIV FOR
L_; INTLRNATIQUAL 'GFOLOGtCAL COIRRELAIIIIN STVVIES
t F. D I S ON 1 •N I
F'AU'N' ROBt OF r 1 1.4 1
Institute for Space Research INFEMational C ouncil inr. Scientific and Tcrhuolopical nevelt-pate"t CNF--
$a. Jose dos Campus - SP BRAZIL.--
ABSTRACT
A merhodo l is proposedlogy for irttTtkatiODal geological correl%tion stctdie^cased on LANDSAT- MSS imagery, Bullard ' s et at. model of continental fitand
'I Weir African coun-compatible tirructural trends between Northeast grox- an d the-r axilian ;tudy at*& are mapped and 7'.ttt rpar, i. .lrisiwe lineament. !% the Or
discussedaccording to their regional behavior andto the adjacent con-_relationtinerital margin. Among the first conclusions, correlations were found between the39bral Pedro 11 Lineament and the attgafautts chat surround the Vest African
the Pernambuco Lineament with the fc3auraud re Lineament i Cameroo n.craton; and a
Ongoing research to complete the atthodologicai staves will include the mappingof the West African structural framework, reconstruction of the pre-drift puzzleand an analysis of thv counterpart coerelntions.
I . INTRODUCTION
Since 1977 2, th, • LANDSAT MuLtispectra! Scanner S y stem ha , been -,oll,oLingrep,,titive data over global regions it, the visible a nd near infrared spectral.
Global !-.a-, lholn t:!at t! ' e .oluri.1;oi :i wnrlA ;:iti be -.arked!v irei ! i th,- r^li
iy the s .ion t i f i c ocrrv' ^tt i f-.q s ha b.-ru Mad, be .FCC n,seit" ive i tj ar—ib. Studies of this tvp 4—n b.•
LA;i'; '1T sCa'nir. y'an. image Ititerpre t ati,, ri••
The Gr,l.iiicai Carrvlari,n VrojF ct (Condt.ar.a Project) d,,_' Pe" ti p the Briz : 'iat• Institute :or spa•'v f o'Fl ti t 1 t
applccation of I,^NDSAT f^ir inLirn3t i -t— r(I-ili n stn i ivr• ban,_'
tit,-:Y of C-ntinecta l Diifr.
par • r pi-e—itt" ih•s"m' s,-e pr ;i;,,ira;-- or a,ion_-
Vie pit , p sed ai.•• o,,,v w,i, bas d i—c—t 41 1 ti a ,ei( n "' .1 4 r
t a a 'q q i 5 i t I [1, e4 J. P 71, at ? .,:n tf I i t 11 4 V r C- 1 t v 1
a t l ne r. t t n i
a I ii 1 1 o r r f 1, 1 e 1 D S A T t y p e I), 1 .1 t i11 i-I M", I ,at e 'r". of e a, 01 t ; le 1 , 1 an< me o'; i I t, 15 t
ctre t -'-;It
U t I t' r Va r ' I, c ^k- i ^e ^ 1'iL It ;I 4r r. i r^j 1 1I a I av i t c' th, lit i " f flit it a . in t i,, t., s, i i ik c %ev e ., n 4 dc r, ^, ^.;, •
.ion rlti{_Ill# the ^ar.-. late r ! , c j-11 ! I i x
I 1W is I V dat a t ' , ".1 at i• bc i ti i Va i vii p t i d j n s: f P, T ta i f Tj
li le, on V t It;. 1; 1- & f qt' L . i fl d ^ pv n d q nt a E rh,- r i 4f c , t and d i I r r,
':'hr .I re 1 r.I u,l:rd a re in te 3 i, , it , I S s;,,.,l lv .oI r e I at 1.• J 1,: 11 ,e at cl•er, I-i-vo;.,:d in conti:;.nIa: dritt. 'hc phy,iography of thI • AtlantiI FIfa;tt,,riai :an-tin,nt.Il ma rgi Is appe., r,, a:. pieces it a " j ig- ••av" p,s>r.I-, lenitin,; n n:,t s:raIten.iu ncy fur , ,•o;t • -it : ity, tilt inc ivnt c„nt ine it . IIs, imi 1.11 b, lv.rt ha- It in, • r.t I n.; r>,. tts of A r'i Ia and hraziI ,% thr iiti I i a 1 puinl ,•1 Ra rn.-r',t) p. , thusis (l• vi<vv1 .4>3). list IIa III , Ever It it, .1 Nmi Ih (141,4) 1,rop. , :1 • J a :itl inen( lie tvo Conl itt y 111 bas rd ost 0,1411 Its' pth:i or h e I: • al Ina p t al e,!gr, Cu it F:a!e 1111 isit is 1.h.. mist..Il :':a r.:iit of t!iv :vo cont ine is The ..: lwr:c plu pit ,ed by tl,vsv.,ut I;, r:: vi I 6r LI • e , odv1 us_• d in Ihi, study. togrti,ct with I.A!:PSAT moaalIS t,dis ritniit ate tho ,1.r .clurr.l rarw• rk of Ili• 11r-.Iri!i in visit h, a.t and Al Ii:.rn
r.nr!iw, s fit,• n1 ie: ills L• a• eu applied to Prl amhi".ir YrI , 1"Si c.II , -r rely: I.- ;i(AI-,<.i'a, 19t+ r ,l a, sit ,;I it t„ tcc toni• fabric Iitr t, • ; at ions of tllt• I..nt it n a,ma r;in: 1, Ci s it :mui Fr, an _'1'5).
Thu cunt iaa:::I t, u,a rim i v s ad ja, rrL to thy • mouth At I.,nI i1 arc .. mmon 1 ,.as1i-
iirl a. At I ar.I i, Iepi (Ile, zc a, i97c1 .,:m oppv-eci to thv P.; iIis type. 1,1 1 ,1:, l:l,lirct type adjcir.% deep o I, aniI ..:,nos of I-xp.r,tsiin, too atar -;iris of t 1l• I s a•- iti•type are adj w eat. to nes , • f cna 11, S. 91 C All tht USLinI' plat:,, as on rho :ast,ra
mar,;in of the S,•uth ?% me r c.tn Continent. For Lire meth-,d prol,ased, it is f tin ,!ame n I a I
that the cent lntnra1 • im r g I n:, he c: thy • At!anI is type, whose ter 1011ir pros est r,sve re I m s s inI. n5e tit t: the p a, it is type and .!i; uIt. evolve to disfigure Ihv a:-joinin g 1Andv..rI ;tr d ores.
FoI lowing the r ter is that the cont iii,-ninl n.Irc,in he of nc , Atlantic If%V.,
that .+ model .a. .onaeI tiiiti Itic cons inc n L s I— appli•- ab lc and that LAN' V'S'; ,ja t:, -
avatlable 1.!t a• vi sua1 i n t v r p r,: t it i It n of imagery a J iItt cgrati on of tee tc::iI tad
atr•Ictural data caul! be Fat sued.
u r, • red i:,g the Ic IuaI rr:,vIrco s jee, E.ie Iarg. r lincam nt::, It i ncipa1
st-ivt3ral tc• n&-.i,ie and Jiftetrnt geciogical segcvn,es c,I the Brariliatl N:+rtl,-.•ast va r, r, ap i
t v_'. To supp - rI the visual interpretation, three I; I, is i cal pr"file,
ve:r :I,•.•clop,::; lire :ir;I,f,W. I m N..0 1 to tu , rais 4oviss (Iii,1 6 ran Je J .• %,11.11.the secot:d. 8S, fruT Scrra 1aIhuJa (Pi nambucoI C1, Onus (Ceara) and, the tLIr::,
from Oros to ,'r.,1. us (Ceara), in a NW di re l:I ion to Santa Q„ite r .'C a .:) in a SF
dir•ectinr.. Th.- profiles p. • re,iI.te •I the IiI lit' I •, glfaI an.i •strurtu.aI C hat racteriza-1 tivv c f the p r nc:pay 1.,:c to;. i•' 1• roups of the Brazilian Ncriheast.I ^ .
n, -- sIa;1., f ,Ilov v, • uid tl:e de ve l., pmv n.I . , i t. ,:amt i r.:,• r p re t a t i v V er!i for the .t: i^ ' ar alea , the .,i r.. hei it Ic r S ra•tu r y the Go ndv a n ...;ml•nI
us i'1.r. p r e i e r v:: t i.,11 is th. • );come Ir of the I ror I r l cap of the h r a zil i-rn- A f r i I ani :mate rpa rIs.
I (` .h, last r dg, vestl . i tie ,I: an.11 v i: ail ,c. n inv n a co r r l 4 ioll Se •:e laitI lvp••s it .rl r• • Int ioe< to :,,ppv r1. the• theory of el+n1. ine p t al t . L h.. r,::lvd.tla, •,! ..:I %': ',i a.+. t i I , ar . ! .I I::sl;..,•t i. , n -,ps.
In su;:, r.:.117, 0r, Bari^r s1. al• c:• . • t t e r I . I , li es ;c•! m,:It••J • : it, v Ian Le ,Iva:.^
1 - s ri ti -it Lk- D;:A r-!ISS in,ar,,: ry, ,.•.,linei. at 1It,-
1 ,
,,+I :I•.1..•,;: I ( a:a: labl,t IVr,,i Oita l 1. .3
paper. aP. r•''i,-..,. ^I•iraa i„'h s C, . tie Arlan:.
hitter Is a depc ad.,L!r.I^Jei re np.^s.ta. • n of t11r
- ,P: ;rl1l (^ ,,! . •, :va.. `^1 1•!j i9l •u:r,1, e •1.1:11 r, ., r
c1. ,IstI .:r l.t'•or ,. .. I Its . , t .,n. ,t r .• ..rkti :
'• - ,•it:ou a' .. ,,.as•llrvl it, :. ,.^r ., .is!r , : ri 'r• ?e: a•1.
1 , 1. ;{•1.l t:.eaIt :I 'r,,,1. p17c1e1.S.
., .;;•., .. .• o r 1 I t i .,n .
l^
, I
?1
i
y.3. STRUCTUPAL CRAMEWORk OF T41 RPA7.IIIAN YURTHE AST
auaI intetpr,taiion it MSS imagery has alluwrd t4r mapping of 6 majorlineaments striking iegionally for hundreds of kilomvirr. (Figure 1). There are
jother fracture Iin.• s not so appareot as the Cabigi Iinvaacnt and Santa QuitoriaIitoramant. Far each vxtensive !ineament the rug ion AI tccI fin ie behavior con cernin;cur prv(ambri.sn geological scheme r.,d the physivgrap'ay of the adjoining ront1i,•nt.Almsrlcin will be a y scribed. ncvsc major iineamants are oft• • n strike-slip in nature
} but aometim:s mu!tsplit slips are present (Mellu et Al., 1918).Same linoam •• ntr are policyc lit and therefore older than 1,800 mkv, as arc the
L t Pe t ml, urnend Fa Los Li ne amenr e. Cab uji Li neamr e.t otlie rwi sr seems b nto e youg(r,' - its volcanism bring 20-)0 m.y. old, (Santos, 1968; Pont• and Asmns, 1478).
).l SuARAI.-PtURO It IINFANEST
I ^ ` This lineament extends northeastward oi,er 300 kitoma-.eirs from the Parnaiha
1 - Palroxvie Basis to tb •` Garr; t: inha Cvnuzeic It— in close to the Atl:•nt is margin.In the Parnaiba Basi'.,. at .appear, ax a normal luulting system fellowin f; the Vpper
- Palley of Pote rivet. Inside the precambrian area, there are purr-tectonic gran-f•^I 1
_( - itoids (430 m.y.) intruded along the lineament strike and some a!,.gnments
I a ' - grabens, the enclose u;:;canics of these- grabens are 430 m.y. at cambro -ard. -:a t -nage (A)meida et al., 1967).
•^'^,j At the ion erged ccnrinentsl margin, thin Iineawu nt b.:unds two differentI-j basin jrchi[ectureto. In the vreL, the basement is deep and dips laeduard. In flee
1I+ ( east, the basement is shallow and dip% seaward ( Pon te and Asmus, 19;6). 1hus, the
linome is show; some reactivation in Upper Cret areuus. Upper CrrtaceoLs marks the•
begs nninp of Wvaldeni an re;acci catson of Dra:.ili an Platform (Alnridta, 1969).
! 1 ).2 NOVA RUSSAS (iAL'A) LINEAMP.NT
L^ This Iincam;• nt is a strike-+lip fault extending over 300 kilometers, in apretamhriAn domain. Itie predominant trend is NIGH with a final NF inflection
1 following the trend of Lhv 5, • b or a I - Pvd ro II Li r,v ament;Figure I). 'the south seg-oo
i
;ok - r is slignea with the S.• nador Pompru Linca :Aen[ and controls the rucc• • ri CtaSrn
filledwith clsstics of Canbru-('rdonician rRe (Aineida vt at., 196.'). The Northern
E ,^ svgment citafinvs Iso II y,tha eastern border of n arnaii,a Basin separating the11 Fale,•zvic basan from the 4ranitic zone of Santa Qoi r i a ;Santa ';uitetia Medan
Massive). The structural trends of Curu - Indepenuen:ia FoIdc.i felt (Britu Nevis,
1 j^1975) are clearly aligned with the Have Russas Lineament.
S.j SLNADON POMPLL• I.INEAMF,Nri]his Lineament comprises sr-., v ral dextral transrurrent faults trending ':rr _ - alen{; 1 00 kilometers, from Coccoci, at I'arnai Sa Basin bnr;Irr, to thr rntiruar
• - - ircracicus Rasin to the co.rst. Several granitaacls 811,1 MetabakiCb are Present
• - along this :Suit system. Granitoids are elongated to tike NE following; the linr • a-- sent trending. Alrnelda (1967) suck^Rr%ts that eranitoids are pent-t r atonic ..crrrdinv
to the :adiomett^e arcs (44U m.y.l, Supposing a, therwioic older are for tl.c
metahasic (Aiorite) b, k d;es. The sourhwei.tern segment of the Iinran • ent runtTo)sthe s „ u thorn taunt of the Cont' eoei G:ahrn.
rk i.. IAGtANIbF IiNFAVENr1
Ihia atraettarsi fa. at -re ex , . • ud- over 4 p 9 kilometer- fr"e the parnalba
' Rasin f,•rder t k t • ...• r t agu.a• it a c i-, n the .u.d%t lin e .
-^ l , s onf.• rm to tto , Iin,aao • nI hrt we, r, Irontriru r ' I :hre•e extcnsi:a 1kState)
afauand , I or Mes StAIrl,(I'igurr 1). TL. • re Inult; trend F.*. Fr ow • arcs r•,
s litcdatliI,. • , ' !• r lineament f.•rstr J b y t. I.,oII . ; ,n. is the Ura ; % f i's 't sLa:ataguaribecrenkla NS, the other is the fault that trend.. 1Nt:. T ateee several fatelts
show aa.ltipl- s lip., st rik, lapping ar,d th .t :li,^pinr 3'u • pr•^mi urn[ deft.- ti: t
ORIGINAL pAGE ISOF POOR QUALITY
I
s^
°t
L
t
C'
of this Iinaame fit , vhi;h ahruptIy rhansea, Iltc trend from f.NF, to NN F, is followedby all structural at i l:naienta between Paton I.ineamcnt an ,I.lt(Ilbrthe Ll I1C anic nI.
11,is dc1Iect1Olt can b.. ^ e,t in [It,- .•lun 1;:ttrJ form. ul lhr grauitoiJ, in rnnr urt.•ditr&bens, ire the wig matite toliaaien and in the meIaa, • itirevntar -y bending. 'fhe linea-ment was reactivated in Upper Cretaceous ai though coal Inrd lu the west , • rn borderof the Araripe Cretareous Has to - a relevat,t feature related to the Sort11v r Br./siltrain Cor,tinvittal M.rrgin. P,• nte and Asm.ts (1979) described some her I ton taIdisplAremenl in the b lo, It. faulted system of the cuntinentaI shelves caused bythe reactivation of the Ja,;uaribe I,inentse+lt .
7.5 PATOS IAMI:AlV%T AND PERNAMIIUCO LINEAMENT
These lineam:nts .ere the frost ren:atkabie clrments from the nurtheaater-tstructural framework. lsrev are confinud t,• a vide z„nr of EY structural trenuing.known as the transversal belt of the Brazilian I , iiat , ,r air . These broad lineamentscan be drawn out over rich of 500 kilumerer y tram Ili,- I'arnoib't Basin co the con-tinental border.
The P:.tos I-r—ament has a final deflection to ME while tire PernambucoLineament fc lloses a .tr -r t',t EY trend. 8. , 1h Iincame.nta b.-ad relevant trciuhicvlemeats of the Bra zi I t j rl -rtlr i l—aitern. lhv Patos Lineament limits the Rio Piranhas
Median Massif (older that: 1 .960 m.y.) from the Pian,S Alto Brigida folded belt(yuunStr LItaa 1,000 m.v.)
The- Pernambuco lineament bounds partially ti . the Il e rnam?uto-Alagoas fredlanM:,ssit f—to the adjoining Vpper Prvterozoi, roi •-'C'' Melt (Brit., Neves, 1915).
Both lineametrtt. were reactivated in the Early Cret•,CCaws as can be drawnfrom the im.igra. Pa t, • s Lineament. confine, the no t'Ile in border of Araripe ba,inwi.ilc Pernambuco Lineament c„ntines Lhc northern Voider . f Jatohi Bagie,.
Some „fishor y leaLutes are aligned with the.e lineament.+. The Pataibae. car pare nta Are ai ignrd mien, the 6 0 40'S I, trai le 1, Ile sane tali tode as the Patus
uhaIt , rc : in. amert ( ]'.,ti t y .end Asmus. 19781. 'to aig;riIicant magnetic anomalies vrrcdrawn be Fainatein et .it. (1 4 75) offshore ,.f Paraiba. Th e Per..-.ambuco Scastour,titand t1 , e Pernambuco Platcat, are aligned wit s, the f,rt:ambu.o Lineament. l'ainietain
al (!970 •
link s; F, •:iI t •f ant m a gr. tic .ln. • rlAI ice with the Peresmbucn P!Ateau.F.r a time, the alignment of tit, se featurrs aarr -onsidereJ only r-oincrdental byP. , nte aed A:+aus (It>78). The Cahn Magmatic Provinrr lcobra, 1967) is estplaceti
c:easeiy wit!, the Pernaz . bu o I,i: ' , aaent near Rccif; • . P 10 ha . ic vvl can Ira Ant
aiItaIine, Ar.inites .ire tae predvmini:nt ro,-k•.. Artcrdt g y t.r 9anduros (Al me- ida rt
al. 14671 ate detertainat;rne of (abo g ranite reveal values of 40 m-y. for the
r ,• on, ' This suggests t. hit (:oho Gtani It , ti iv he tit.: v •, ungt t of the BrazilianPlatform. G•)rini arid l
ieY•t • t (19'5 ) .,imcnZ talker g ut s ,ors, aug{ect. a ¢enrtic Tolalioc-
aa,ip beturvn Cabu Prvvin^ -.nd rt n,nmbueo l.ine..rern[.
4 . FIRST CQNCIAISIONS
Allhour• h the intvrpretAti.rn of IANhSAT im.aitra over .%I rice has not beendeveloped, sore prelimraar con, lucinns can be -r.a d- based on the reported resit cs.
arJ avai;able bibliogriphv of A^rL.a:
1 The structural Iramruorks di;played by the Pan-Afri ,• an Cycle in WesternAtrica (-: oryuat, , 191- e1 ,ind by lire alenrl r, nou, even , of th, hrazi Tianr.ycle in it. r:hta .tern Brazil, acv tar m . , al securf piram •• lvrs in theT.-construction : , f a palev-contintnL, since they were not affected b)
younger aropeni. cycl.rs.2 - F',nlr .xt. • nstvv fault zones can ltt rorr ,.iatrd arrnrdins to the proposrc
m„drl. 'fhe Sobr:.l-1'edrn It Lineament car. Fr corrcla'.ed vitt. the NStranscurient fa,. Its that a-.past.• the metasedimrnts of the West -AtricanCraton (Alneiits. 14b(•; Bertrand .+nd Gabe, 19161. g osh Iir.eamrnTS limitctAtur.it are .l„ i art inily, r„ndit,ona Pot. l- ter t, • nar t• ran itell Ant! g oat - -r;Ated Cartel , ro-Or Joe iaian gar thens. The Pvrnambn,o Lineament can be
R,
n0n[1
P,
'ill
d ^I
- fA,
rorrelatrd with te volcanic tine of t- ssrroom anti the Ngau ran
dert-
lh
imes or t. Ti,c PCI'nambis,0 Linean.ent has a ttansrtorrrnt rharaclrr anucondition,, Cretaceous grabene, 'ecent volcanism and rouny: rraaitra(Cabo Granite). According to Almrida (19bb), Corine and Bryan (1975).the Nr;aurnudere Lineament i n also tIanscurtrnt, has rrartivated during
theCretaceous coudt:innb grabene and is associated with young volcanism(Cameroon volcanism).
? - The extenx(ve oceanic transforming faults are ;ot secure structuralelruents for eorr, • lattnits ainer than tectonic conditioning ele sic ntii,are different on both mile• of thr Ali antit. p olite and Asmus '1978)point out that the Atlantic fractured zonrs are tangent to the BraaiIi an
coasts ad du not affect significantly the ; `nysiographir character of t.•
continental margin. In equatorial Africa, un Ih. other hand, theycondition t'• .iomits of several Cretaceous basins (Togo-Dahoney. Abidtan.
andthe Ben., trough) without affecting significantly the tztensivrAfrican lineaments (Deiteil rt al.. ;976; Corin" a,:d Bryan, 1975).
- The struct,r.l directions of Serido fold helt (NE) (Brito Nsves.1975)
and of Dahor.ey fold belt (H g ) (C.hen, 1961) are compatible when thecontiurnts are fitted.
5 - Geuchronological data compiled from bibliographical sources show correla-tioas that certify the coat inuity of the tecton.. events between bothcontinents. The Pan-African tectogtnesis is correlatable with thetraItilia»o and the F.burnean tectogeursis with transattazonian (Cshen andSnelling, 1966; Clifford, 1970; Almrida et al. 1973). Two CICLanit
cycles affected the precambrian rocks between Pecife and Fortaleza,likewise, two cycles affected the precasbrian rocks between Camrroonand Ghana. The synchronism between events as well as the similarttieabetween the structural tendencies when the pre-dtift scheme is sketched
iad •:cate that the pre-drift hypothesis is A perfectly verifiable fact. t*
In that, continental drift is a verifiahle fact, and the conrineutat mar;io
is of the Atlantic type, it appear ► 'o be fratible to develop studies of interna-tional geological rortel ations with LANDSAT images.
5. ONGOING, RESEAKCH
Ongc+ing rrsearch wil! complete for final stages proposed by th. m,,thodulogr.
`l
They can be drawn as follows:
11 1 I - To mop the ^truetural Irawevork of Ur ,, torn African between Ca— roon andll
Cl.ana using MSS Im-igx,r y, rhanneI In 1, I;1.000.Or: 0 +e Ale.2 - re fittlie :ounttrpatts base,l on their structural ftAnework and on
it el Iar'l's ritIinr mo del.
1 - To lit tSe IANDSA1' xvvnics Irom tl,r cont in. • ntAI , moon terpar's.a - To analyze the ,.rrelattnn supported Sy trctontr and filho;ogscal dst:
6. ACKFttN LEPU4F51TS
Thr aath, • rs are gratrfol to, Dal lrthur Coltn • II for t:cr ^riti(al reading o:the msnuecript and Or. lcacn F'itnrelln And SLr • ry Chou C!in for rvvisinr, the
Iugciso, transI.,I ion .
tlIB1IUl:R APNY
.11 g o, ida, ).F.?'.. 196e, A geologic do aordestr brasileiro a da Africa Ocidrntal
j e Equatorial e i hiprtesr da Jerive dof roatinonte,. It..' Ansia dot tl 5001811101de (rebates G-o9ngicos, Porto AlrKre. Brazil, p. 91-120.
jilmrida. I'.I.'t. 1969. ')tlrrenriasau lerl'nla da Pln'atorrta Brastlr.rs.
i inngr. Bras. Crol.r 23, Salvador, Ir. • tl, p.29-56.
J Almrida, F.I.M.; Lcon.crdas Jr., 17.11.; V.&Irn^a, 1967. Rrvir• cn graniticrocks of northeast South America. 1Ut;S-1'NES0l. N.urlrce.
I.^
F! ^
S
n
I
Alne ida, F. r.r,.; Amaral, C.1 Cotdani, 11.G.; Kava+hita, C. 1973. 'me pc-1. r,an rv„lot ion of the South America cratonte aarRin South of Amitr,n
--- -- -i tivrr. In: A. r.. M. Nairn and F.C. St chl Ed. TIty p re an ban ins at.J Ma ns.
hew Yo fl, . Plrn„nt, 1, 411-i 76.
Rrrtrand, J.M.L.; Cabe, R. 1978. Ceadyitamir evoIutinc of thr Pan - African
rroFenic h. • 1t: A new icterprelativit ut thr Il,,y;Rarirld (Algerian Sahara;
I Geologischr KunjRthau, 67 ). p. 717-198.
#-
Kevra, B.. 1975. Regianaliza`YO Rrarettnnira Jo Preeaatbrianu Nardrs[in0.B r i t o R1 (Dnrteral DI tar rt.tt\ rI,1. ln^tl tutu de rroclrn r l a + . tlnlv. • ra l.{,1de de Sao
Paula, Ea. Pautu, bratil.
!' Baliard,E.j Eve, e: t, .I.E.; Smith, A. G. 196.. The !i,t of it,* continent: srount
the At I .on I ir. !hy:.ol uphyc al 71 ar. a.a, ti,nt of R4 • ya1 Sar irty, Iun don, No r i v s A.1 :se (I (IN h). p. 41-75.
CaL.n, L. 1561. Favtt•w of Ceorhr rorologicaI Kn(aIrder in PidJle and Northern
:.friaa. Annals of Sr.: York Acidemy of Scirnree, 91 (1). p.5)5-567.
• Cahrn, L.; Snrl:inl, :,..!.19h n. The CootIll)volo, . , f EquaI.rial Africa.
:,na[e:Jaq.
CIiIfrrd, T.V. ;71ft. Toe 7.trurtura: fr amt- wt- rk of hfIira. In: I')iffu,d and
J ^
{_`•
G.I. GI aa. td.; A(ri.an Ma{;tndI m and rrcton,c.,. Hifn,r P.,h1.0 r.l - :b.
Cobra, B.Q. I'167 Gcolvyia du rratao do (abo de Santo ARoftinh,.. Bu It ti •n 1;;,
!,NPM. Itin do J.,nciro. KraiiI.
DeIteiI. J.R.; X -itl, F.; 9..ntadeII, L.; Ap. , atu10bw• , V,; DiBier, J., Conlin, M .
I'At ri.1l, P. !976. S r-.t Lure and rc.!ivrntat ion of the -ant ine p t al margin
, • f Chr Gulf of Renin. 1'r- redings of tht• Int.• ruatirnal Syopaclum „n r nt:-
tiriental Matgina of AtIanEi: Typt. Sao Paul.,, bt rill l, P. 51-61.
i Fa:^xtvin, R. Mi11i-in, J. P.; Jost, J. 1,7'•. flaRn,tic character r , % thr
brazilian c:nl,aental sl-eli and upprr blrpe. Revistn Brasiteira de Geo-.-i;ntia:, 5 (J1, Krat : I P. I'!h-:ll.
r` C.nrini. 71.A.; B - y:tn. C.M. I"::. 7-'tc t. • , tonic Iahr i, .,f the I. yu41 o r al At last,
1 j and adjuinlu8 continent.11 Ina rgina: Gulf rf Gutn ••a t • t \ortheaatern hrazil.
Il I Lamont-Da l.erty Gro1,'Aicol Obhrrvatory C ootritluti , • nr. XV 2407. Coluabi.t I'll iveri.Itc. S.w Ynrk.
Iferten, B.C. 19'+. Atlantic type .:ontinent..I margins. In: C.A. Burk and C.A.
Ilrake Ld. :e Ce.11vgy rt fort tt -ten tal 9a, 11 ins. arr;nRer 1'r:luR, B.rlin.
• uelln, A.A.; Saute i t .. NrndnOta, J C. 147%. A C...tonIra litic nr no F.Iz0o
do Crari. X X X C,•ny;te ► s•. 9t.1•.i1•1Ato de G< • ulr, tiA. !a1, 1. Re • i(r, brrrilP . 93 -+u1.
L1'o-It e F. C.; .t,•„r, M.E. 1'1711, 6: n l ogic.l 1ranr4 .,rk rf the Brazilian rontinen-
Lal tr.arltin. Ge•':ot:ir•;'tc Kubdsrhau, 6' (1). P. 701-:35.
S.ant.•s,1..,t. 1414 .1, 1 Con; r ih ,i;aa,s rrrl. , atiA .1a Quadri('11a de AS u. SerIa U• .•1•9 .1
Re I;i •, nal 99 b, SU, FVL, K.-i le, bra 9i!.
"orquatn, I.R. 197h. ,voter t.-nic Currclarion b.- tveen SE b:atil and :Id Jtfri...,
Tr••ceip "t r.In rn tln lntvr.tallonaI Sys Ito ,to ,n Cont i non t&I Margins ••f
Atianit - I)pr, sa.• I'aala. It )i3-I.,
1
t
(o
p V..iaey A.N. . 1 93 S. Soue roament• on tit. hypotheei y of rontinrutnl ,irift.- ^n: Continental D rift: A Sympncium tlniv••rrity of "n.m•nie. 1,.167-171.
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L3nF POOR QUALITY