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Mantle heterogeneity beneath the Phoenix ridge in the Drake Passage, Antarctica

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dc.contributor.authorLee, Jong Ik-
dc.contributor.authorChoi, Sung Hi-
dc.contributor.author최원희-
dc.coverage.spatialAntarctica-
dc.date.issued2007-
dc.identifier.urihttps://repository.kopri.re.kr/handle/201206/7737-
dc.description.abstractWe determined Sr, Nd and Pb isotopic compositions for basalts recovered from the fossilized Phoenix Ridge in the Drake Passage, Antarctica, in order to understand the nature of sub-ridge mantle source. We observe that small scale isotopic heterogeneity does exist at shallow level in the sub-axial mantle of the Phoenix Ridge, being distant from any known hotspots. Extinction of the Phoenix Ridge is likely to lead decreasing extent of partial melting in this region. We interpret that geochemically enriched materials dispersed in ambient depleted mantle were the first fraction to melt for generating the studied enriched mid-ocean ridge basalts (E-MORB) represented by relatively small extents of melt of enriched mantle source-
dc.languageEnglish-
dc.titleMantle heterogeneity beneath the Phoenix ridge in the Drake Passage, Antarctica-
dc.title.alternative남극 드레이크해협내의 피닉스 해령 하부 맨틀의 이질성-
dc.typeProceeding-
dc.identifier.bibliographicCitationLee, Jong Ik, Choi, Sung Hi, 최원희. 2007. Mantle heterogeneity beneath the Phoenix ridge in the Drake Passage, Antarctica. KOPRI. KOPRI. 2007.05.15~.-
dc.citation.volume14-
dc.citation.number1-
dc.citation.conferenceDate2007.05.15~-
dc.citation.conferenceNameKOPRI-
dc.citation.conferencePlaceKOPRI-
dc.description.articleClassificationPro(초록)국외-
dc.subject.keywordAntarctica-
dc.subject.keywordPhoenix Ridge-
dc.subject.keywordheterogeneity-
dc.identifier.localId2007-0131-
Appears in Collections  
2006-2010, Formation, evolution and neotectonics of Antarctica (06-10) / Lee, Jong Ik; Cheo, Moon Young
2007-2007, Radiogenic Isotopic Systematics on the Rock Samples from Polar Region(07-07) / Choi, Sung Hi
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