georefid:2005-014675SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=2005-014675<gco:CharacterString>Late Neogene deep sea benthic foraminiferal biostratigraphy of ODP sites 762B and 763A (Exmouth Plateau), eastern Indian Ocean</gco:CharacterString>2004-01-01publicationgeorefid:2005-014675Rai, Ajai K.Allahabad University, Department of Earth and Planetary Sciences, Allahabad, IndiaauthorSingh, V. B.authorGeological Society of India, Bangalore, IndiapublisherdocumentHardcopyJournal of the Geological Society of India63 (4)415-429The Pliocene-Pleistocene sections at ODP sites 762B and 763A from the Exmouth Plateau (eastern Indian Ocean) were examined to assess the biostratigraphic significance of the benthic foraminifera. The benthic foraminiferal assemblages at both the sites are characteristic of bathyal depths. Based on the stratigraphic ranges of significant taxa, four benthic foraminiferal biozones have been proposed. The proposed biozones in ascending order are Hofkeruva nitidula Zone (>6.6 to approximately 4.72 Ma); Biloculina murrhina Zone ( approximately 4.72 to approximately 1.8 Ma); Ceratobulimina pacifica-Stilostomella insecta overlap Zone ( approximately 1.8 to approximately 0.82 Ma) and Ceratobulimina pacifica Zone ( approximately 0.82 Ma to Recent). The lower and upper boundaries of the Biloculina murrhina Zone are defined by the last appearance of Hofkeruva nitidula (Schwager) and first appearance of Ceratobulimina pacifica Cushman and Harris respectively. The base of Ceratobulimina pacifica Zone is defined by the last appearance of Stilostomella insecta (Schwager).completedStratigraphyAllomorphina pacificabenthic taxaBiloculina murrhinabiostratigraphybiozonesBuliminaBulimina macilentaBuliminaceaCenozoicCeratobulimina pacificaEast Indian OceanExmouth PlateauForaminiferaFrancesita advenaHofkeruva nitidulaIndian OceanInvertebrataLeg 122microfossilsNeogeneNodosaria fusiformisOcean Drilling ProgramODP Site 762ODP Site 763ProtistaRobertina tasmanicaRotaliinaTertiaryupper NeogeneUvigerinaUvigerina peregrinaUvigerinidaeurn:org.iodp:exp:122urnlargerWorkCitationcampaignurn:org.iodp:exp:122:site:762urnlargerWorkCitationstudyurn:org.iodp:exp:122urnlargerWorkCitationcampaignurn:org.iodp:exp:122:site:763urnlargerWorkCitationstudyurn:org.iodp:exp:122urnlargerWorkCitationcampaignEnglishgeoscientificInformation112.1514112.151419.531420.3511