%0 Journal Article
%T 台湾东部海域花东盆地的地质特征：位于欧亚板块和太平洋板块之间的新特提斯洋残余?
%A Chi-yue HUANG
%J 地球学报
%D 2012
%R 10.3975/cagsb.2012.s1.12
%X TheHuatungBasin(20°30’-23°30’N/121°30’-123°E;maximumwaterdepth:5500m)locateseastoffTaiwan.ItisborderedbytheCoastalRangeofTaiwanandtheNorthLuzonArctothewest,theWestPhilippineSeatotheeastandtheRyukyuTrenchtothenorth.TheHuatungBasinwasprevi-ouslyregardedasapartoftheCenozoicPhilippineSeaPlate(<50Ma).However,Ar40/Ar39datingonamphiboleintwodredgedgabbrosamplesretrievedfromthesouthernpartoftheHuatungBasinindi-catedthattheBasinwasearlyCretaceousinage(115-121Ma;Deschampsetal.,2000).Thisageisfurthersupportedbyanindependentmicropaleon-tologystudyonsomeredchertxenolithscontainingEarlyCretaceousradiolarianfossils(115Ma;YehandCheng,2001)intheLatePleistocenevolcanicsequencesoftheLanyuVolcanicIslandoftheNorthLuzonArc.TheNorthLuzonVolcanicArcwasformedduringtheeastwardsubductionoftheSouthChinaSeaoceaniclithospherebeneaththeHuatungBasinsincemiddleMiocene.Accordingly,theMio-ceneLuzonvolcanicarcissittingontheCretaceousoceaniccrustoftheHuatungBasin.
%K HuatungBasin
%K Neo-Tethys
%K tectonics
%U http://www.cagsbulletin.com/dqxbcn/ch/reader/view_abstract.aspx?file_no=2012s112&flag=1