georefid:2001-013812SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=2001-013812<gco:CharacterString>Origin of continental components in Indian Ocean basalts; evidence from Elan Bank (Kerguelen Plateau, ODP Leg 183, Site 1137)</gco:CharacterString>2001-01-01publicationgeorefid:2001-013812Weis, DominiqueUniversite Libre de Bruxelles, Department of Earth and Environmental Sciences, Brussels, BelgiumauthorIngle, StephanieMassachusetts Institute of Technology, United StatesauthorDamasceno, DimitriUniversity of Rochester, United StatesauthorFrey, Frederick A.authorNicolaysen, KirstenauthorBarling, JaneauthorAntretter, M.authorArndt, N.authorBoehm, F.authorBorre, M.authorCoffin, Millard F.authorCoxall, H.authorDamuth, J.authorDelius, H.authorDuncan, Robert A.authorInokuchi, H.authorKeszthelyi, L.authorMahoney, J.authorMoore, L.authorMueller, R. DietmarauthorNeal, C.authorPringle, M.authorReusch, D.authorSaccocia, P.authorTeagle, D.authorWahnert, V.authorWallace, P.authorWise, S. W., Jr.authorZhao, X.authorGeological Society of America (GSA), Boulder, CO, United StatespublisherdocumentHardcopyGeology (Boulder)29 (2)147-150Basalts forming the floor of the Indian Ocean are geochemically distinct from those of the Atlantic and Pacific Oceans. These differences have been attributed to a deeply recycled continental component or to widespread dispersion of plume-type mantle within the Indian Ocean asthenosphere. The discovery of Proterozoic continental crustal rocks within the uppermost basaltic basement of Elan Bank, part of the Kerguelen Plateau, shows instead that direct shallow-level contamination of basaltic magmas by isolated continental crust fragments may have produced the anomalous isotopic ratios of some Indian Ocean basalts.completedIsotope geochemistryIgneous and metamorphic petrologyalkali metalsalkaline earth metalsAntarctic Oceanbasaltscontinental crustcrustElan Bankgeochemical anomaliesgeochemistryigneous rocksIndian Oceanisotope ratiosisotopesKerguelen PlateauKerguelen Plumelarge igneous provincesleadLeg 183lithogeochemistrymagma contaminationmajor elementsmantlemantle plumesmetalsNd-144/Nd-143neodymiumOcean Drilling ProgramODP Site 1137Pb-206/Pb-204Pb-207/Pb-204Pb-208/Pb-204radioactive isotopesrare earthsRb-87/Sr-86rubidiumsoutheastern Indian OceanSr-87/Sr-86stable isotopesstrontiumtrace elementsvolcanic rocksurn:org.iodp:exp:183urnlargerWorkCitationcampaignurn:org.iodp:exp:183:site:1137urnlargerWorkCitationstudyurn:org.iodp:exp:183urnlargerWorkCitationcampaignEnglishgeoscientificInformation68.053668.0536-56.5000-56.5000