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- OpenAccess
Crustal Velocity Variation of the Western Philippine Sea Plate from TAICRUST OBS/MCS Line 23
叢海底地震儀第二十三號測缐資料探討西菲律賓海板塊的地殼速度變化
並列摘要
As a part of the U.S.-R.O.C.collaborative deep seismic imaging experiment,six ocean-bottom seismographs(OBSs)were deployed along the12°12'N parallel west of Hengchun Peninsula and wide-offset seismic signalsfrom a large air-gun array shot over the line were recorded.A preliminaryanalysis of these data together with those from another OBS tothe east of the peninsula reveals that a 11-km thick crustal layer,interpretedto be an extended continental crust of the southern margin of theChinese mainland,lies under most of the line and dips toward the east atlow angle.A complex margin wedge is observed at depth immediate westand underneath the peninsula,which may have resulted from the thicksedimentary layer,quite likely including the basement complex,pushedagainst the strong backstop provided by the Philippine Sea plate convergingfrom the east.
並列關鍵字
Crustal Variation ； OBS ； Travel-Time Inversion ； Philippine Sea Plate ； Luzon Arc ； Moho ； Depression延伸閱讀
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