georefid:2001-021650SEDIS Publication Catalogue
ana.macario@awi.de
http://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=2001-021650<gco:CharacterString>Provenance of Proterozoic garnet-biotite gneiss recovered from Elan Bank, Kerguelen Plateau, southern Indian Ocean</gco:CharacterString>2001-01-01publicationgeorefid:2001-021650Nicolaysen, KirstenMassachusetts Institute of Technology, Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United StatesauthorBowring, SamuelUniversite Libre de Bruxelles, BelgiumauthorFrey, FrederickScottish Universities Environmental Research Centre, United KingdomauthorWeis, DominiqueUniversity of Texas at Austin, United StatesauthorIngle, StephanieauthorPringle, Malcolm S.authorCoffin, Millard F.authorAntretter, M.authorArndt, N.authorBarling, JaneauthorBoehm, F.authorBorre, M.authorCoxall, H.authorDamasceno, DimitriauthorDamuth, J.authorDelius, H.authorDuncan, Robert A.authorInokuchi, H.authorKeszthelyi, L.authorMahoney, J.authorMoore, C. L.authorMueller, R. DietmarauthorNeal, C.authorReusch, D.authorSaccocia, P.authorTeagle, D.authorWaehnert, V.authorWallace, P.authorWise, S. W., Jr.authorZhao, X.authorGeological Society of America (GSA), Boulder, CO, United StatespublisherdocumentHardcopyGeology (Boulder)29 (3)235-238At Elan Bank of the Kerguelen Plateau in the southeast Indian Ocean, Leg 183 of the Ocean Drilling Program recovered clasts of garnet-biotite gneiss in a fluvial conglomerate intercalated with basalt flows. U-Pb and Pb-Pb dates of zircons and monazites in these clasts and an overlying sandstone range from 534 to 2547 Ma, which is much older than the surrounding Indian Ocean seafloor. These dates show that old continental crust resides in the shallow crust of the oceanic Kerguelen Plateau and that the breakup of Gondwana dispersed continental fragments into the nascent Indian Ocean lithosphere.completedSolid-earth geophysicsGeochronologyabsolute ageAntarctic Oceanbiotite gneissclastic rocksclastsconglomeratecontinental driftcrustdatesElan Bankgarnet-biotite gneissgneissesGondwanaIndian OceanKerguelen Plateaularge igneous provincesLeg 183lithospheremetamorphic rocksmonazitenesosilicatesOcean Drilling Programoceanic crustODP Site 1137orthosilicatesPb/PbphosphatesplateausPrecambrianProterozoicprovenancesandstonesedimentary rockssilicatessouthern Indian OceanU/Pbupper Precambrianzirconzircon groupurn:org.iodp:exp:183urnlargerWorkCitationcampaignurn:org.iodp:exp:183:site:1137urnlargerWorkCitationstudyurn:org.iodp:exp:183urnlargerWorkCitationcampaignEnglishgeoscientificInformation68.053668.0536-56.5000-56.5000With GSA Data Repository Item 2001024