Proto-Adamastor ocean crust(920 Ma)described in Brasiliano Orogen from coetaneous zircon and tourmaline
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摘要
Proto-Adamastor ocean bathed Rodinia and successor continental fragments from 1.0-0.9 Ga up to0.75 Ga,and evolved into world Adamastor Ocean at 0.75-0.60 Ga.Mesoproterozoic oceanic crust is poorly preserved on continents,only indirect evidence registered in Brasiliano Orogen.We report first evidence of ophiolite originated in proto-Adamastor.We use multi-technique U-Pb-Hf zircon and δ~(11)B tourmaline isotopic and elemental compositions.The host tourmalinite is enclosed in metaserpentinite,both belonging to the Bossoroca ophiolite.Zircon is 920 Ma-old,ε_(Hf)(920 Ma)= +12,Hf_(T_(DM))= 1.0 Ga and has' oceanic'composition(e.g.,U/Yb<0.1).Tourmaline is dravite with δ~(11)B =+1.8‰(Tur 1),0‰(Tur 2),-8.5‰(Tur 3).These characteristics are a novel contribution to Rodinia and associated world ocean,because a fragment of proto-Adamastor oceanic crust and mantle evolved at the beginning of the Brasiliano Orogen.
Proto-Adamastor ocean bathed Rodinia and successor continental fragments from 1.0-0.9 Ga up to0.75 Ga,and evolved into world Adamastor Ocean at 0.75-0.60 Ga.Mesoproterozoic oceanic crust is poorly preserved on continents,only indirect evidence registered in Brasiliano Orogen.We report first evidence of ophiolite originated in proto-Adamastor.We use multi-technique U-Pb-Hf zircon and δ~(11)B tourmaline isotopic and elemental compositions.The host tourmalinite is enclosed in metaserpentinite,both belonging to the Bossoroca ophiolite.Zircon is 920 Ma-old,ε_(Hf)(920 Ma)= +12,Hf_(T_(DM))= 1.0 Ga and has' oceanic'composition(e.g.,U/Yb<0.1).Tourmaline is dravite with δ~(11)B =+1.8‰(Tur 1),0‰(Tur 2),-8.5‰(Tur 3).These characteristics are a novel contribution to Rodinia and associated world ocean,because a fragment of proto-Adamastor oceanic crust and mantle evolved at the beginning of the Brasiliano Orogen.
Proto-Adamastor ocean bathed Rodinia and successor continental fragments from 1.0-0.9 Ga up to0.75 Ga,and evolved into world Adamastor Ocean at 0.75-0.60 Ga.Mesoproterozoic oceanic crust is poorly preserved on continents,only indirect evidence registered in Brasiliano Orogen.We report first evidence of ophiolite originated in proto-Adamastor.We use multi-technique U-Pb-Hf zircon and δ~(11)B tourmaline isotopic and elemental compositions.The host tourmalinite is enclosed in metaserpentinite,both belonging to the Bossoroca ophiolite.Zircon is 920 Ma-old,ε_(Hf)(920 Ma)= +12,Hf_(T_(DM))= 1.0 Ga and has' oceanic'composition(e.g.,U/Yb<0.1).Tourmaline is dravite with δ~(11)B =+1.8‰(Tur 1),0‰(Tur 2),-8.5‰(Tur 3).These characteristics are a novel contribution to Rodinia and associated world ocean,because a fragment of proto-Adamastor oceanic crust and mantle evolved at the beginning of the Brasiliano Orogen.
引文
Albert,C.,Lana,C.,Gerdes,A.,Schannor,M.,Narduzzia,F.,Queiroga,G.,2018.Archean magmatic-hydrothermal fluid evolution in the Quadrilatero Ferrífero(SE Brazil)documented by B isotopes(LA MC-ICPMS)in tourmaline.Chemical Geology 481,95-109.
Arena,K.R.,Hartmann,L.A.,Lana,C.,2016.Evolution of Neoproterozoic ophiolites from the southern Brasiliano Orogen revealed by zircon U-Pb-Hf isotopes and geochemistry.Precambrian Research 285,299-314.
Arena,K.R.,Hartmann,L.A.,Lana,C.,2017.Tonian emplacement of ophiolites in the southern Brasiliano Orogen delimited by U-Pb-Hf isotopes of zircon from metasomatites.Gondwana Research 49,296-332.
Arena,K.R.,Hartmann,L.A.,Lana,C.,2018.U-Pb-Hf isotopes and trace elements of metasomatic zircon delimit the evolution of the neoproterozoic Capane ophiolite in the southern Brasiliano Orogen.International Geology Review 60,911-928.
Basei,M.A S.,Frimmel,H.E.,Campos Neto,M.C.,Ganade de Araujo,C.E.,Castro,N.A.,Passarelli,C.R.,2018.The tectonic history of the southern Adamastor oceanbased on a correlation of the Kaoko and Dom Feliciano belts.In:Siegesmund,S.,et al.(Eds.),Geology of Southwest Gondwana,Regional Geology Reviews.Springer International Publishing AG,part of Springer Nature,pp.63-85.
Berryman, E.J.,Kutzschbach,M.,Trumbull,R.B.,Meixner,A.,van Hinsberg,V.,Kasemann,S.A.,Franz,G., 2017.Tourmaline as a petrogenetic indicator in the pfitsch formation,western tauern window,eastern Alps.Lithos 284-285,138-155.
Berryman.E.J.,Wunder,B.,Rhede.D.,Schettler,G.,Franz,G.,Heinrich,W.,2016.P-T-X controls on Ca and Na distribution between Mg-Al tourmaline and fluid.Contributions to Mineralogy and Petrology 171(31),1-14.
Bogdanova,S.V.,Pisarevsky,S.A.,Li,Z.X.,2009.Ass embly and breakup of Rodinia(some results of IGCP project 440).Stratigraphy and Geological Correlation 17,259-274.
Boynton,W.V.,1984.Cosmochemistry of the rare earth elements;meteorite studies.In:Henderson,P.(Ed.),Rare Earth Element Geochemistry.Elsevier,pp.63-114.
Brito-Neves,B.B.,Campos Neto,M.C.,Fuck,R.A.,1999.From Rodinia to western Gondwana:an approach to the Brasiliano-Pan African cycle and orogenic collage.Episodes 22,155-166.
Cawood,P.A.,Strachan,R.A.,Pisarevsky,S.A.,Gladkochub,D.P.,Murphy,J.B.,2016.Linking collisional and accretionary orogens during Rodinia assembly and breakup:implications for models of supercontinent cycles.Earth and Planetary Science Letters 449.118-126.
Choo.C.O.,2003.Mineralogical studies on complex zoned tourmaline in diaspore nodules from the Milyang clay deposit,Korea.Geosciences Journal 7,151-1 56.
Farber,K.,Dziggel,A.,Trumbull,R.B.,Meyer,F.M.,Wiedenbeck,M.,2015.Tourmaline B-isotopes as tracers of fluid sources in silicified Palaeoarchaean oceanic crust of the Mendon Formation,Barberton greenstone belt.South Africa.Chemical Geology 417,134-147.
Garda,G.M.,Trumbull,R.B.,Beljavskis,P.,Wiedenbeck,M.,2009.Boron isotope composition of tourmalinite and vein tourmalines associated with gold mineralization,Serra do Itaberaba Group,central Ribeira Belt,SF.Brazil.Chemical Geology 264,207-220.
Gerdes,A.,Zeh,A.,2006.Combined U-Pb and Hf is.otope LA-(MC)-ICP-MS analyses of detrital zircons:comparison with SHRIMP and new constraints for the provenance and age of an Armorican nietasediment in Central Germany.Earth and Planetary Science Letters 249,47-61.
Grimes,C.B.,John,B.E.,Kelemen,P.B.,Mazdab,F.,Wooden,J.L.,Cheadle,M.J.,Hanghoj,K.,Schwartz,J.J.,2007.The trace element chemistry of zircons from oceanic crust:a method for distinguishing detrital zircon provenance.Geology35,643-646.
Grimes,C.B.,Wooden,J.L,Cheadle,M.J.,John,B.E.,2015."Fingerprinting"tectonomagmatic provenance using trace elements in igneous zircon.Contributions to Mineralogy and Petrology 170,46.
Gubert,M.L.,Philipp,R.P.,Basei,M.A.S.,2016.The Boss oroca complex,Sao Gabriel terrane,Dom Feliciano belt,southernmost Brazil:U-Pb geochronology and tectonic implications for the neoproterozoic Sao Gabriel arc Journal of South American Earth Sciences 70,1-17.
Hartmann,L.A.,Delgado.I.M.,2001.Cratons and orogenic belts of the Brazilian Shield and their contained gold deposits.Mineralium Deposita 36,207-217.
Hartmann,LA.,Philipp,R.P.,Santos,J.O.S.,McNaughton,N.J.,2011.Time frame of753-680 Ma juvenile accretion during the Sao Gabriel orogeny,southern Brazil.Gondwana Research 19.84-99.
Hartmann,L.A.,Takehara,L.Leite,J.A.D.,McNaughton,N.J.,Vasconcellos,M.A.Z.,1997.Fracture sealing in zircon as evaluated by electron microprobe analyses and back-scattered electron imaging.Chemical Geology 141,67-72.
Henry,D.J.,Dutrow,B.L.,1996.Metamorphic tourmaline and its petrologic applications.Reviews in Mineralogy 33,503-557.
Ishikawa,T.,Nakamura.,E,1992.Boron isotope geochemistry of the oceanic crust from DSDP/ODP Hole 504B.Geochimica et Cosmochimica Acta 56,1633-1639.
Kapyaho,A.,Molnar,F.,Sorjonen-Ward,P.,Manttari,I.,Sakellaris,G.,Whitehouse,M.J.,2017.New U-Pb age constraints for the timing of gold mineralization at the Pampalo gold deposit,Archaean Hattu schist belt,eastern Finland,obtained from hydrothermally altered and recrystallised zircon.Precambrian Research 289.48-61.
Koppe,J.C.,Hartmann,LA.,Lisboa,P.F.C.,Monteiro.R.N.,1985.Aspectos geol6gicos e estratigraficos do Complexo Bossoroca,Sao Sepé,Rio Grande do Sul.In:Simp.Sul-brasil.Geol.,vol.2.SBG,Anais,Florian6polis,Brasil,pp.32-36.
Koppe,J.C.,Hartmann,L.A.,1990.Geochemistry of the Bossoroca greenstone belt.Southernmost Brazil.Geochimica Brasiliensis 2,167-174.
Lena,L.O.F.,Pimentel,M.M.,Philipp,R.P.,Armstrong,R.,Sato,K.,2014.The evolution of the Neoproterozoic Sao Gabriel juvenile tcrranc,southern Brazil bas ed on high spatial resolution U-Pb ages and~(18)O data from detrital zircons.Precambrian Research 247,126-138.
Li,Z.X.,Bogdanova.S.V.,Collins,A.S.,Davidson,A.,De Waele,B.,Ernst,R.E.,Fitzimons,I.C.W.,Fuck,R.A.,Gladkochum,D.P.,Jacobs,J.,Karlstrom,K.E,Lu,S.,Natapov,LM.,Pease,V.,Pisarevsky,S.A.,Thrane,K.,Vernikovsky,V.,2008.Assembly,configuration,and break-up history of Rodinia:a synthesis.Precambrian Research 160,179-210.
Machado,N.,Koppe,J.C.,Hartmann,L.A.,1990.A late proterozoic U-Pb age for the Bossoroca belt,Rio Grande do Sul,Brazil.Journal of South American Earth Sciences 3,87-90.
Nakano,T.,Nakamura,F.,2001.Boron isotope geochemistry of metasedimentary rocks and tourmalines in a subduction zone metamorphic suite.Physics of the Earth and Planetary Interiors 127,233-252.
Nance,R.D.,Murphy,J.B.,2013.Origins of the supercontinent cycle.Geoscience Frontiers 4,439-448.
Oriolo,S.,Oyhantcabal.P.,Wemmer,K.,Siegesmund,S.,2017.Contemporaneous assembly of Western Gondwana and final Rodinia break-up:implications for the supercontinent cycle.Geoscience Frontiers 8,1431-1445.
Pertille,J.,Hartmann,L.A.,Santos.J.O.S.,McNaughton,N.J.,Armstrong,R.,2018.Reconstructing the Cryogenian-Ediacaran evolution of the Porongos fold and thrust belt,southern Brasiliano Orogen,based on zircon U-Pb-Hf-O isotopes.International Geology Review 59,1532-1560.https://doi.org/10.1080/00206814.2017.12852 57.
Philipp,R.P.,Pimentel,M.M.,Basel,MA.S.,2018.The tectonic evolution of the Sao Gabriel terrane,Dom Feliciano belt,southern Brazil:the closure of the Charrua ocean.In:Siegesmund,S.,et al.(Eds.),Geology of Southwest Gondwana,Regional Geology Reviews.Springer International Publishing AG,part of Springer Nature,pp.243-265.
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Ramos,R.C.,Koester,E,Porcher,C.C.,2018.Chemistry of chromites from Arroio Grande ophiolite(Dom Feliciano belt,Brazil)and their possible connection with the Nama Group(Namibia).Journal of South American Earth Sciences 80.192-206.https://doi.org/10.101 6/j.j same s.2017.09.032.
Ranta,J.-P.,Hanski,E.,Cook,N.,Lahaye,Y.,2017.Source of boron in the Palokas gold deposit,northern Finland:evidence from boron isotopes and major element composition of tourmaline.Mineralium Deposits 52,733-746.
Remus,M.V.D.,McNaughton,N.J.,Hartmann,LA.,Koppe,J.C.,Fletcher,I.R.,Groves,D.I.,Pinto,V.M.,1999.Gold in the Neoproterozoic juvenile Bossoroca volcanic arc of southernmost Brazil:isotopic constraints on timing and sources.Journal of South American Earth Sciences 12,349-366.
Saalmann,K.,Remus,M.V.D.,Hartmann,LA.,2006.Tectonic evolution of the Neoproterozoic Sao Gabriel block,southern Brazil:constraints on Brasiliano orogenic evolution of the Rio de La Plata cratonic margin.Journal of South American Earth Sciences 21,204-227.
Saalmann,K.,Remus,M.V.D.,Hartmann,L.A.,2007.Ncoprotcrozoic magmatic arc ass embly in the southern Brazilian Shield-constraints for a plate tectonic model for the Brasiliano orogeny.Geo tectonic Research 95,41-59.
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Arena,K.R.,Hartmann,L.A.,Lana,C.,2016.Evolution of Neoproterozoic ophiolites from the southern Brasiliano Orogen revealed by zircon U-Pb-Hf isotopes and geochemistry.Precambrian Research 285,299-314.
Arena,K.R.,Hartmann,L.A.,Lana,C.,2017.Tonian emplacement of ophiolites in the southern Brasiliano Orogen delimited by U-Pb-Hf isotopes of zircon from metasomatites.Gondwana Research 49,296-332.
Arena,K.R.,Hartmann,L.A.,Lana,C.,2018.U-Pb-Hf isotopes and trace elements of metasomatic zircon delimit the evolution of the neoproterozoic Capane ophiolite in the southern Brasiliano Orogen.International Geology Review 60,911-928.
Basei,M.A S.,Frimmel,H.E.,Campos Neto,M.C.,Ganade de Araujo,C.E.,Castro,N.A.,Passarelli,C.R.,2018.The tectonic history of the southern Adamastor oceanbased on a correlation of the Kaoko and Dom Feliciano belts.In:Siegesmund,S.,et al.(Eds.),Geology of Southwest Gondwana,Regional Geology Reviews.Springer International Publishing AG,part of Springer Nature,pp.63-85.
Berryman, E.J.,Kutzschbach,M.,Trumbull,R.B.,Meixner,A.,van Hinsberg,V.,Kasemann,S.A.,Franz,G., 2017.Tourmaline as a petrogenetic indicator in the pfitsch formation,western tauern window,eastern Alps.Lithos 284-285,138-155.
Berryman.E.J.,Wunder,B.,Rhede.D.,Schettler,G.,Franz,G.,Heinrich,W.,2016.P-T-X controls on Ca and Na distribution between Mg-Al tourmaline and fluid.Contributions to Mineralogy and Petrology 171(31),1-14.
Bogdanova,S.V.,Pisarevsky,S.A.,Li,Z.X.,2009.Ass embly and breakup of Rodinia(some results of IGCP project 440).Stratigraphy and Geological Correlation 17,259-274.
Boynton,W.V.,1984.Cosmochemistry of the rare earth elements;meteorite studies.In:Henderson,P.(Ed.),Rare Earth Element Geochemistry.Elsevier,pp.63-114.
Brito-Neves,B.B.,Campos Neto,M.C.,Fuck,R.A.,1999.From Rodinia to western Gondwana:an approach to the Brasiliano-Pan African cycle and orogenic collage.Episodes 22,155-166.
Cawood,P.A.,Strachan,R.A.,Pisarevsky,S.A.,Gladkochub,D.P.,Murphy,J.B.,2016.Linking collisional and accretionary orogens during Rodinia assembly and breakup:implications for models of supercontinent cycles.Earth and Planetary Science Letters 449.118-126.
Choo.C.O.,2003.Mineralogical studies on complex zoned tourmaline in diaspore nodules from the Milyang clay deposit,Korea.Geosciences Journal 7,151-1 56.
Farber,K.,Dziggel,A.,Trumbull,R.B.,Meyer,F.M.,Wiedenbeck,M.,2015.Tourmaline B-isotopes as tracers of fluid sources in silicified Palaeoarchaean oceanic crust of the Mendon Formation,Barberton greenstone belt.South Africa.Chemical Geology 417,134-147.
Garda,G.M.,Trumbull,R.B.,Beljavskis,P.,Wiedenbeck,M.,2009.Boron isotope composition of tourmalinite and vein tourmalines associated with gold mineralization,Serra do Itaberaba Group,central Ribeira Belt,SF.Brazil.Chemical Geology 264,207-220.
Gerdes,A.,Zeh,A.,2006.Combined U-Pb and Hf is.otope LA-(MC)-ICP-MS analyses of detrital zircons:comparison with SHRIMP and new constraints for the provenance and age of an Armorican nietasediment in Central Germany.Earth and Planetary Science Letters 249,47-61.
Grimes,C.B.,John,B.E.,Kelemen,P.B.,Mazdab,F.,Wooden,J.L.,Cheadle,M.J.,Hanghoj,K.,Schwartz,J.J.,2007.The trace element chemistry of zircons from oceanic crust:a method for distinguishing detrital zircon provenance.Geology35,643-646.
Grimes,C.B.,Wooden,J.L,Cheadle,M.J.,John,B.E.,2015."Fingerprinting"tectonomagmatic provenance using trace elements in igneous zircon.Contributions to Mineralogy and Petrology 170,46.
Gubert,M.L.,Philipp,R.P.,Basei,M.A.S.,2016.The Boss oroca complex,Sao Gabriel terrane,Dom Feliciano belt,southernmost Brazil:U-Pb geochronology and tectonic implications for the neoproterozoic Sao Gabriel arc Journal of South American Earth Sciences 70,1-17.
Hartmann,L.A.,Delgado.I.M.,2001.Cratons and orogenic belts of the Brazilian Shield and their contained gold deposits.Mineralium Deposita 36,207-217.
Hartmann,LA.,Philipp,R.P.,Santos,J.O.S.,McNaughton,N.J.,2011.Time frame of753-680 Ma juvenile accretion during the Sao Gabriel orogeny,southern Brazil.Gondwana Research 19.84-99.
Hartmann,L.A.,Takehara,L.Leite,J.A.D.,McNaughton,N.J.,Vasconcellos,M.A.Z.,1997.Fracture sealing in zircon as evaluated by electron microprobe analyses and back-scattered electron imaging.Chemical Geology 141,67-72.
Henry,D.J.,Dutrow,B.L.,1996.Metamorphic tourmaline and its petrologic applications.Reviews in Mineralogy 33,503-557.
Ishikawa,T.,Nakamura.,E,1992.Boron isotope geochemistry of the oceanic crust from DSDP/ODP Hole 504B.Geochimica et Cosmochimica Acta 56,1633-1639.
Kapyaho,A.,Molnar,F.,Sorjonen-Ward,P.,Manttari,I.,Sakellaris,G.,Whitehouse,M.J.,2017.New U-Pb age constraints for the timing of gold mineralization at the Pampalo gold deposit,Archaean Hattu schist belt,eastern Finland,obtained from hydrothermally altered and recrystallised zircon.Precambrian Research 289.48-61.
Koppe,J.C.,Hartmann,LA.,Lisboa,P.F.C.,Monteiro.R.N.,1985.Aspectos geol6gicos e estratigraficos do Complexo Bossoroca,Sao Sepé,Rio Grande do Sul.In:Simp.Sul-brasil.Geol.,vol.2.SBG,Anais,Florian6polis,Brasil,pp.32-36.
Koppe,J.C.,Hartmann,L.A.,1990.Geochemistry of the Bossoroca greenstone belt.Southernmost Brazil.Geochimica Brasiliensis 2,167-174.
Lena,L.O.F.,Pimentel,M.M.,Philipp,R.P.,Armstrong,R.,Sato,K.,2014.The evolution of the Neoproterozoic Sao Gabriel juvenile tcrranc,southern Brazil bas ed on high spatial resolution U-Pb ages and~(18)O data from detrital zircons.Precambrian Research 247,126-138.
Li,Z.X.,Bogdanova.S.V.,Collins,A.S.,Davidson,A.,De Waele,B.,Ernst,R.E.,Fitzimons,I.C.W.,Fuck,R.A.,Gladkochum,D.P.,Jacobs,J.,Karlstrom,K.E,Lu,S.,Natapov,LM.,Pease,V.,Pisarevsky,S.A.,Thrane,K.,Vernikovsky,V.,2008.Assembly,configuration,and break-up history of Rodinia:a synthesis.Precambrian Research 160,179-210.
Machado,N.,Koppe,J.C.,Hartmann,L.A.,1990.A late proterozoic U-Pb age for the Bossoroca belt,Rio Grande do Sul,Brazil.Journal of South American Earth Sciences 3,87-90.
Nakano,T.,Nakamura,F.,2001.Boron isotope geochemistry of metasedimentary rocks and tourmalines in a subduction zone metamorphic suite.Physics of the Earth and Planetary Interiors 127,233-252.
Nance,R.D.,Murphy,J.B.,2013.Origins of the supercontinent cycle.Geoscience Frontiers 4,439-448.
Oriolo,S.,Oyhantcabal.P.,Wemmer,K.,Siegesmund,S.,2017.Contemporaneous assembly of Western Gondwana and final Rodinia break-up:implications for the supercontinent cycle.Geoscience Frontiers 8,1431-1445.
Pertille,J.,Hartmann,L.A.,Santos.J.O.S.,McNaughton,N.J.,Armstrong,R.,2018.Reconstructing the Cryogenian-Ediacaran evolution of the Porongos fold and thrust belt,southern Brasiliano Orogen,based on zircon U-Pb-Hf-O isotopes.International Geology Review 59,1532-1560.https://doi.org/10.1080/00206814.2017.12852 57.
Philipp,R.P.,Pimentel,M.M.,Basel,MA.S.,2018.The tectonic evolution of the Sao Gabriel terrane,Dom Feliciano belt,southern Brazil:the closure of the Charrua ocean.In:Siegesmund,S.,et al.(Eds.),Geology of Southwest Gondwana,Regional Geology Reviews.Springer International Publishing AG,part of Springer Nature,pp.243-265.
Queiroga,G.N.,Pedrosa-Soares,A.C.,Noce,C.M.,Alkmim,F.F.,Pimentel,M.M.,Dantas,E.,Martins,M.,Castaneda,C..Suita,M.T.F.,Prichard,F.,2007.Age of the Ribeirao da Folha ophiolite,Aracuai Orogen:the U-Pb zircon dating of a plagiogranite.Geonomos 15,61-65.
Ramos,R.C.,Koester,E,Porcher,C.C.,2018.Chemistry of chromites from Arroio Grande ophiolite(Dom Feliciano belt,Brazil)and their possible connection with the Nama Group(Namibia).Journal of South American Earth Sciences 80.192-206.https://doi.org/10.101 6/j.j same s.2017.09.032.
Ranta,J.-P.,Hanski,E.,Cook,N.,Lahaye,Y.,2017.Source of boron in the Palokas gold deposit,northern Finland:evidence from boron isotopes and major element composition of tourmaline.Mineralium Deposits 52,733-746.
Remus,M.V.D.,McNaughton,N.J.,Hartmann,LA.,Koppe,J.C.,Fletcher,I.R.,Groves,D.I.,Pinto,V.M.,1999.Gold in the Neoproterozoic juvenile Bossoroca volcanic arc of southernmost Brazil:isotopic constraints on timing and sources.Journal of South American Earth Sciences 12,349-366.
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