georefid:2003-045874georefid:2003-045862SEDIS 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=10.2973/odp.proc.ir.189.112.20012001-01-01publicationgeorefid:2003-045874doi:10.2973/odp.proc.ir.189.112.2001Christie, David M.Oregon State University, College of Oceanic and Atmospheric Sciences, Corvallis, OR, United StatesauthorPedersen, Rolf B.Universitetet i Bergen, NorwayauthorMiller, D. JayOcean Drilling Program, United StatesauthorBalzer, Vaughn G.ODP/Naturalia et Biologia, FranceauthorEinaudi, FlorenceUniversity of London, United KingdomauthorGee, M. A. MaryChristian-Albrechts-Universitaet zu Kiel, Federal Republic of GermanyauthorHauff, FolkmarIsotope Geosciences Laboratory, United KingdomauthorKempton, Pamela D.Academia Sinica, TaiwanauthorLiang, Wen-TzongCentre de Recherches Petrographiques et Geochimiques, FranceauthorLysnes, KristineUniversity of Tokyo, JapanauthorMeyzen, Christine M.Universitetet i Bergen, NorwayauthorPyle, Douglas G.Ocean Drilling Program, United StatesauthorRusso, Christopher J.ODP/Naturalia et Biologia, FranceauthorSato, HiroshiUniversity of London, United KingdomauthorThorseth, Ingunn H.Christian-Albrechts-Universitaet zu Kiel, Federal Republic of GermanyauthorTexas A&M University, Ocean Drilling Program, College Station, TX, United StatespublisherdocumentDigitalIn: Christie, David M., Pedersen, Rolf B., Miller, D. Jay, Balzer, Vaughn G., Einaudi, Florence, Gee, M. A. Mary, Hauff, Folkmar, Kempton, Pamela D., Liang, Wen-Tzong, Lysnes, Kristine, Meyzen, Christine M., Pyle, Douglas G., Russo, Christopher J., Sato, Hiroshi, Thorseth, Ingunn H., Bridges, Brenda (editor), Proceedings of the Ocean Drilling Program, initial reports, mantle reservoirs and migration associated with Australian Antarctic rifting; covering Leg 187 of the cruises of the drilling vessel JOIDES Resolution; Fremantle, Australia, to Fremantle, Australia; sites 1152-1164, 16 November 1999-10 January 2000187This site was intended to check for Indian-type mantle between Sites 1158 and 1159. If it is of Indian type, it could test whether rift propogation reintroduced Pacific-type mantle beneath the region. Hole 1161A produced 4.4 m (15% recovery) of basaltic rubble with fragments of plagioclase-olivine phyric basalt breccia. Between the larger clasts is a finer-grained breccia with clasts of altered basalt and palagonitized glass in a clay-rich sediment matrix. This hole was abandoned due to drilling problems Hole 1161 B is composed of aphyric to highly plagioclase olivine phyric basalt and basaltic breccia. Both holes were moderately to highly altered by low-temperature reactions. Za/Br systematics of 1161A basaltic glass indicate Indian-type mantle source. The glass has a high Na (sub 2) O/TiO (sub 2) relative to other Leg 187 compositions and is therefore Indian type. This occurrence, separated by <1 Ma from the Pacific type mantle beneath site 1158, documents a second incursion of Indian-type mantle into Zone A (1157 is the first).(LEL)completedIgneous and metamorphic petrologyAntarctic OceanAustralian-Antarctic discordancebasaltsCenozoiccoresgeochemistrygeophysical methodsgeophysical profilesgeophysical surveysigneous rocksIndian OceanLeg 187lower Miocenemarine sedimentsMid-Indian Ridgemineral compositionMioceneNeogeneOcean Drilling Programocean floorsODP Site 1161sedimentsseismic methodsseismic profilesSoutheast Indian RidgesurveysTertiaryvolcanic rocksurn:org.iodp:exp:187urnlargerWorkCitationcampaignurn:org.iodp:exp:187:site:1161urnlargerWorkCitationstudyurn:org.iodp:exp:187urnlargerWorkCitationcampaignEnglishgeoscientificInformation129.0306129.0306-44.1712-44.1706Available only on CD-ROM and on the Web in PDF formatapplication/pdfunknownSEDIS Publication Catalogue

ana.macario@awi.de

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