2
t2 G ci S c 8 a G()n(i\.,.am.\L:, Geochrom®iegy ®f the s®m¬hermrm®st gBaat ®f the Eas¬ African ®ff®g®mg in wes¬ern Mozarmfeiqraeg anal its impHcatioms f®F the final armalgarmati®ffi ®f G®ndwana i?.G. C:ordani',1``.R. G]iat.iquc`2 I bi`ililiil{i {1(I i;f (It.`iiri{if ls> U..S[? ,Sdii P(I..tio, I}i`a,~`il : I)irti,i.{d{I .tti!ti{jiitil {]it (`i¢tllog.it4 iMa|}iilu, M {I=iiliiljiqur 'l.bt` s()iilh{`i`nm()sl I.)z`rl of the East A1`i.ictin ()i.()g.t}n i`'`EA(.),`;! is a(|iaccnt i() tile a()I.tht`astt'{.n c()r{l{`i. of th(.} KztlzLliai.i (`ratf}Ii. In th{` {.-i`{tlonit. ar{}{-`` 2.`-) :3.3 Ga T'l`{:`j-t}`~pc tg.ranit()ids zin(I `gneiss(}s fu.c foimd, as `,i,.cll {}s lh¬' {`{tst¬`i`n t¬rininaLion of the ^\'.iular'¬h-{`)dz,i-^\,''l{Lni(`;i a.i`¬¬nstoli¬, belt. Thi.i {'i.£i{{)nit. tjzis(`m{'n{, is o\.(`I`1ain b}..1hc Umkondo \.'ol{`£m;c~st`(liin{`I`t<iry st`qi}cn(.{`, {`u{ h}r 1100 +\`i<l {iol(^1i{cs. I}{`lrit{}l z,ir(.()ris {)f z}bout 200() ^\'`!a (`on'f3i`m `h{' ^\''I(^soi)rotert%{)i{` ag.{^ of this unit,. Supr.`{`rustal i.()t`ks also in``,1ud{^ {h(I l`ushing.zi Group, i,\,iLh f`clsic me{iivo}c{ini(`, }`ocks clot.e(I al 79:~3 Ma (`1~Iztrg.rot,'.{` tit zil`` `20()3`,`,it rt^prcscnting. an t`arly .\`copi.t)1t`roz,oic I.)assi\,'c niai.`giri. To tli{-_` t`ast, (m{{`ring the }JI()zambiquc Belt ()f the Fj^A(), I)()th s{?qut`nccs cxhit)it pr()grt```siv{` rt`gi()nal mctamorT`)hism fl`om greens(;hist {o granuliLe {`a(`ics. 'l`hc hi.gil-`g`ra(lc, i)ara,giicisscs` `g`i.aimliic.Q aiid mig.ma{ilcs, fhara(;terislic of tli¬ +\,`'rrj/,ambiqu{` Bcl i , o{`{`ur in {`l{)sc :}ssoi`iai.ion \\..i{h {h(1 pl`e~¬?xisi,ing. ^ty''i{^soproteroz,oi(` grzinitic i`o(`,k`` of {hc Bat.ue t`,(miijk:x, da{{`(i iit t`a. 1 (}:3¢ 11 ()0 .ft,''la. ^\''Ie{i}m()I.I)hi(` I:'-T i.oncii{iolis `.\,'cr(` cslimzili*d ii* /1. 61.`.}j zm{17(}{) 800°G, I.)cHi(al zjjrc.on` of some I)ill.ag`ncisscs },i¬?I(`lc{.i \tc()pr()ler(}z^oic maximum :.Lgcs ()f dc|>osili{.in ()I. 700 -{JO(') *'.1£,`. i/'I()i.ct)vcl., mali}.' m`tz-lm(>l`}'jhi(. t)\,rci.g.i.()w..ths {m zii.c()n grains },ieltlc`{i GamhT.tan ag.es close to ``j(.)0 ^\'Ia (Glia`'it].ue, 2012). i``iiiall},'` K-,.'\i. {`ooling` age,s tielow `r~)0() ^\'{a are i,\,'ides|H`¬a{i o`/'¬r the ¬ntii.¬, hel{` and i.ilso acl`oss the eastern I)()rder of the, Kalahari {.rat()n. Tbt` in('t{im()ri)hi{` I`o{.ks a}`c a}`ra,ng.{`(I into lh{] {.Jhirri()io` M{}{`ossa tin(I ^\'1ung.ziri le(`t(mic iinits, fornled in a scri{`s of con{.in(`n¬:~`l i`,ol]ision.s and (.xhumc(`l at ("¥`c`r`*nt (.rustal I(`vels. ri`hcLy. are juxtai)()s(`,(i Lo {lic Kt.`kthari (`ratt)n i:)}.. means ()f I+.'t`s{\t'-art:I-tlii`ust fi`()iit£J`l napi:)i`s> ri`pi.cscnting. {h(? I)rin{`i|)ill sutiH`{` ()f the ^\.'I(-}7,£}inl.iiqu{` 8{}1{ in the Mani(`a r(`git)n. The i.}`/c"o`}```#-C`#£.7?tt)i.tj `,.\';i¢¢c, in {ht` `south, is s¬`i)al`atf`d from a nor{hc,rn t'tzff,%;`£rty2??..,,+\i'-t{/j/;c b}.' {} {hrusl 7*oTi{` \t`.i{h +\1.Y- { l`{`m!in8. tt`(`,toni{` t}`:lns|)()I`l,. This (`,ot,il{i col`r(.``i)(.m{i {o ih{` prololiLration of {i long`~1iv.{u{i l{t{.i.()ni(`, })()I.ul(lar}.'` {bt.` I.urio B(`lt of` norll.}cas{ci.!l ^\'.Toy,ambi(iiiet which {`()i`morl dul.ing. ^\T{..`oT`x`olcroz,oic to }'.:(ii{L(.ai`iln (_`onfincmzL! i.o]Iision b{`1\fy..t`cn 6()0 ari{1 550 t\''Izi. 11 \.\iras }iiter I.czii.ti\,':,}tc(I in {hc Can3iJria}.i, ai.()und 51 () Ma, zis a }ai.g{_` art(I (`,omplt`,x mcg`a~shcal` z,onc` (`'l.,Ti'{i{i {|t al., 20 I `J`:!. The Pan -.,.. \J`riczin tcct{`>ni(. units `,\,'ilhin th{` Lurit:I Belt. :in(i {`s{){`ciall},I tht)s(`, ()1` thi` +\Tampula I)1()ck (^\.''lat`¬.}/. {?i :.il., 2()11 ), in{`lu{ie ^\'Ie`so|ji`tjte,rt>z,tjit`, (c,{t. 1100 t\4a) orlhog.ii¬isses ``,ht>se g`eologit:al hist{)ry (`lost?l}`. col.I.¬spo?ids {o that of the s{iidi¬,d regi()n. In cent.lusion, i.is in(.li(..a{cti b},'. Gh:u'iqii{^ (2{,)12), lht' 1`irizil suttirin.&` (ji` £h(` M{}zanli)jt|lx. B(.'lt 2lt il,` soit{hc!.nmt;sl i>;irt i` G¬iiribrian in zLgt`. T`hi` sht>\dys tbzi[ [hc airialg{,`nia{itni or {.`;t>]id`,`'£`na was (liz-`chl`()}i{-)us zi}()ng.1hc I.` ;tot star{i}1g` {^zirlicr in the n()i`tb ztncl finishing }{itcr in lbc s()ut}1, coc\,'al \,i,'ith th(i Kiiunga or{-i`gcn}.' of .J.\usti.alia and j`\ntzu.cti(`¬'`. ( :Ii.iiiqiit`` F.. <i'( ) I 2. PhD Thesis` Ins{.ituto d{. {-.}t`or.,it``nf,ia``, I,T,SP` Sao Pal {1t)` Braz,.i l~Iai`thyrt tvt.` e! :}i.. 2`tl):3. Pi`ei.imli)rian Rest'drcli 12:3t lit)~ I 81;. .\..{ztff;}. ct al.` 21:11 {), I'r{;{`am[)rian Re`{'`arf!} I {'tLt. I `L!`1'-11{'t. I :{?d.i ¬t aL. 2t'.i i `J. Prec¬`mt)iicm I`es¬¬~iri`h i ()i;-I {17` 27:-)-2S)<l.. 41

t2 G ci S c 8 a - igc.usp.br · t2 G ci S c 8 a G()n(i\.,.am.\L:, Geochrom®iegy ®f the s®m¬hermrm®st gBaat ®f the Eas¬ African ®ff®g®mg in wes¬ern Mozarmfeiqraeg anal its

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Page 1: t2 G ci S c 8 a - igc.usp.br · t2 G ci S c 8 a G()n(i\.,.am.\L:, Geochrom®iegy ®f the s®m¬hermrm®st gBaat ®f the Eas¬ African ®ff®g®mg in wes¬ern Mozarmfeiqraeg anal its

t2 G ci S c 8 a

G()n(i\.,.am.\L:,

Geochrom®iegy ®f the s®m¬hermrm®st gBaat ®f the Eas¬ African®ff®g®mg in wes¬ern Mozarmfeiqraeg anal its impHcatioms f®F the final

armalgarmati®ffi ®f G®ndwana

i?.G. C:ordani',1``.R. G]iat.iquc`2

I bi`ililiil{i {1(I i;f (It.`iiri{if ls> U..S[? ,Sdii P(I..tio, I}i`a,~`il

: I)irti,i.{d{I .tti!ti{jiitil {]it (`i¢tllog.it4 iMa|}iilu, M {I=iiliiljiqur

'l.bt` s()iilh{`i`nm()sl I.)z`rl of the East A1`i.ictin ()i.()g.t}n i`'`EA(.),`;! is a(|iaccnt i() tile a()I.tht`astt'{.n c()r{l{`i.

of th(.} KztlzLliai.i (`ratf}Ii. In th{` {.-i`{tlonit. ar{}{-`` 2.`-) :3.3 Ga T'l`{:`j-t}`~pc tg.ranit()ids zin(I `gneiss(}s fu.c

foimd, as `,i,.cll {}s lh¬' {`{tst¬`i`n t¬rininaLion of the ^\'.iular'¬h-{`)dz,i-^\,''l{Lni(`;i a.i`¬¬nstoli¬, belt. Thi.i

{'i.£i{{)nit. tjzis(`m{'n{, is o\.(`I`1ain b}..1hc Umkondo \.'ol{`£m;c~st`(liin{`I`t<iry st`qi}cn(.{`, {`u{ h}r 1100

+\`i<l {iol(^1i{cs. I}{`lrit{}l z,ir(.()ris {)f z}bout 200() ^\'`!a (`on'f3i`m `h{' ^\''I(^soi)rotert%{)i{` ag.{^ of this unit,.

Supr.`{`rustal i.()t`ks also in``,1ud{^ {h(I l`ushing.zi Group, i,\,iLh f`clsic me{iivo}c{ini(`, }`ocks clot.e(I al

79:~3 Ma (`1~Iztrg.rot,'.{` tit zil`` `20()3`,`,it rt^prcscnting. an t`arly .\`copi.t)1t`roz,oic I.)assi\,'c niai.`giri. To tli{-_`

t`ast, (m{{`ring the }JI()zambiquc Belt ()f the Fj^A(), I)()th s{?qut`nccs cxhit)it pr()grt```siv{` rt`gi()nal

mctamorT`)hism fl`om greens(;hist {o granuliLe {`a(`ics.'l`hc hi.gil-`g`ra(lc, i)ara,giicisscs` `g`i.aimliic.Q aiid mig.ma{ilcs, fhara(;terislic of tli¬ +\,`'rrj/,ambiqu{`

Bcl i , o{`{`ur in {`l{)sc :}ssoi`iai.ion \\..i{h {h(1 pl`e~¬?xisi,ing. ^ty''i{^soproteroz,oi(` grzinitic i`o(`,k`` of {hc Bat.ue

t`,(miijk:x, da{{`(i iit t`a. 1 (}:3¢ 11 ()0 .ft,''la. ^\''Ie{i}m()I.I)hi(` I:'-T i.oncii{iolis `.\,'cr(` cslimzili*d ii* /1. 61.`.}j

zm{17(}{) 800°G, I.)cHi(al zjjrc.on` of some I)ill.ag`ncisscs },i¬?I(`lc{.i \tc()pr()ler(}z^oic maximum :.Lgcs

()f dc|>osili{.in ()I. 700 -{JO(') *'.1£,`. i/'I()i.ct)vcl., mali}.' m`tz-lm(>l`}'jhi(. t)\,rci.g.i.()w..ths {m zii.c()n grains

},ieltlc`{i GamhT.tan ag.es close to ``j(.)0 ^\'Ia (Glia`'it].ue, 2012). i``iiiall},'` K-,.'\i. {`ooling` age,s tielow`r~)0() ^\'{a are i,\,'ides|H`¬a{i o`/'¬r the ¬ntii.¬, hel{` and i.ilso acl`oss the eastern I)()rder of the, Kalahari

{.rat()n.

Tbt` in('t{im()ri)hi{` I`o{.ks a}`c a}`ra,ng.{`(I into lh{] {.Jhirri()io` M{}{`ossa tin(I ^\'1ung.ziri le(`t(mic iinits,

fornled in a scri{`s of con{.in(`n¬:~`l i`,ol]ision.s and (.xhumc(`l at ("¥`c`r`*nt (.rustal I(`vels. ri`hcLy. are

juxtai)()s(`,(i Lo {lic Kt.`kthari (`ratt)n i:)}.. means ()f I+.'t`s{\t'-art:I-tlii`ust fi`()iit£J`l napi:)i`s> ri`pi.cscnting.{h(? I)rin{`i|)ill sutiH`{` ()f the ^\.'I(-}7,£}inl.iiqu{` 8{}1{ in the Mani(`a r(`git)n. The i.}`/c"o`}```#-C`#£.7?tt)i.tj

`,.\';i¢¢c, in {ht` `south, is s¬`i)al`atf`d from a nor{hc,rn t'tzff,%;`£rty2??..,,+\i'-t{/j/;c b}.' {} {hrusl 7*oTi{` \t`.i{h +\1.Y-

{ l`{`m!in8. tt`(`,toni{` t}`:lns|)()I`l,. This (`,ot,il{i col`r(.``i)(.m{i {o ih{` prololiLration of {i long`~1iv.{u{i l{t{.i.()ni(`,

})()I.ul(lar}.'` {bt.` I.urio B(`lt of` norll.}cas{ci.!l ^\'.Toy,ambi(iiiet which {`()i`morl dul.ing. ^\T{..`oT`x`olcroz,oic

to }'.:(ii{L(.ai`iln (_`onfincmzL! i.o]Iision b{`1\fy..t`cn 6()0 ari{1 550 t\''Izi. 11 \.\iras }iiter I.czii.ti\,':,}tc(I in {hc

Can3iJria}.i, ai.()und 51 () Ma, zis a }ai.g{_` art(I (`,omplt`,x mcg`a~shcal` z,onc` (`'l.,Ti'{i{i {|t al., 20 I `J`:!. The

Pan -.,.. \J`riczin tcct{`>ni(. units `,\,'ilhin th{` Lurit:I Belt. :in(i {`s{){`ciall},I tht)s(`, ()1` thi` +\Tampula I)1()ck

(^\.''lat`¬.}/. {?i :.il., 2()11 ), in{`lu{ie ^\'Ie`so|ji`tjte,rt>z,tjit`, (c,{t. 1100 t\4a) orlhog.ii¬isses ``,ht>se g`eologit:al

hist{)ry (`lost?l}`. col.I.¬spo?ids {o that of the s{iidi¬,d regi()n.

In cent.lusion, i.is in(.li(..a{cti b},'. Gh:u'iqii{^ (2{,)12), lht' 1`irizil suttirin.&` (ji` £h(` M{}zanli)jt|lx. B(.'lt 2lt il,`

soit{hc!.nmt;sl i>;irt i` G¬iiribrian in zLgt`. T`hi` sht>\dys tbzi[ [hc airialg{,`nia{itni or {.`;t>]id`,`'£`na was

(liz-`chl`()}i{-)us zi}()ng.1hc I.`�;tot star{i}1g` {^zirlicr in the n()i`tb ztncl finishing }{itcr in lbc s()ut}1, coc\,'al

\,i,'ith th(i Kiiunga or{-i`gcn}.' of .J.\usti.alia and j`\ntzu.cti(`¬'`.

( :Ii.iiiqiit`` F.. <i'( ) I 2. PhD Thesis` Ins{.ituto d{. {-.}t`or.,it``nf,ia``, I,T,SP` Sao Pal {1t)` Braz,.i

l~Iai`thyrt tvt.` e! :}i.. 2`tl):3. Pi`ei.imli)rian Rest'drcli 12:3t lit)~ I 81;.

.\..{ztff;}. ct al.` 21:11 {), I'r{;{`am[)rian Re`{'`arf!} I {'tLt. I `L!`1'-11{'t.

I :{?d.i ¬t aL. 2t'.i i `J. Prec¬`mt)iicm I`es¬¬~iri`h i ()i;-I {17` 27:-)-2S)<l..

41

Page 2: t2 G ci S c 8 a - igc.usp.br · t2 G ci S c 8 a G()n(i\.,.am.\L:, Geochrom®iegy ®f the s®m¬hermrm®st gBaat ®f the Eas¬ African ®ff®g®mg in wes¬ern Mozarmfeiqraeg anal its