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Geophysical investigations of P3 segment of the Phoenix Ridge in Drake Passage,Antarctica

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dc.contributor.author김규중-
dc.contributor.authorJin, Young Keun-
dc.contributor.authorKim, Yeadong-
dc.contributor.authorHong, Jong Kuk-
dc.contributor.authorLee, Joohan-
dc.contributor.authorNam, SangHeon-
dc.contributor.authorPark, Minkyu-
dc.coverage.spatialAntarctica-
dc.coverage.spatialDrake Passage-
dc.date.issued2007-
dc.identifier.urihttps://repository.kopri.re.kr/handle/201206/7746-
dc.description.abstractDuring the KARP 99/00 cruise, new swath bathymetry, gravity, and magnetic data were obtained in the P3 segment of the Phoenix Ridge in Drake Passage, Antarctica. The detailed bathymetry (including a deep valley, a 2500 m-high seamount, seabed faults and depressions) suggests that spreading rates in P3 varied with time, from an intermediate rate off the ridge axis to a slow rate when spreading ceased. Mantle Bouger anomalies reveal that several gravity lows are associated with the seamount and both flanks of the P3 axial valley, and that highs are found at the junction of the ridge axis and the Hero Fracture Zone. A synthetic magnetic model indicates that the positive anomaly on the axial seamount probably results from the seamount eruption and that it post-dates spreading. By removing the seamount effect, the cessation of P3 spreading is interpreted at about 3.6 Ma, earlier than the 3.3 Ma of previous studies.-
dc.languageEnglish-
dc.titleGeophysical investigations of P3 segment of the Phoenix Ridge in Drake Passage,Antarctica-
dc.title.alternative남극 드레이크해협 P3 피닉스해령의 지구물리 연구-
dc.typeProceeding-
dc.identifier.bibliographicCitation김규중, et al. 2007. Geophysical investigations of P3 segment of the Phoenix Ridge in Drake Passage,Antarctica. USGS. USGS. 2007.08.29~.-
dc.citation.volume2007-
dc.citation.number1047-
dc.citation.conferenceDate2007.08.29~-
dc.citation.conferenceNameUSGS-
dc.citation.conferencePlaceUSGS-
dc.description.articleClassificationPro(FULL)국제-
dc.subject.keywordP3 of Pheonix Ridge-
dc.subject.keywordAntarctica-
dc.subject.keywordDrake Passage-
dc.subject.keywordgeophyscial survey-
dc.subject.keywordseafloor spreading-
dc.identifier.localId2007-0140-
Appears in Collections  
2006-2010, Formation, evolution and neotectonics of Antarctica (06-10) / Lee, Jong Ik; Cheo, Moon Young
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