典型文献
Source Lithology and Magmatic Processes Recorded in the Mineral of Basalts from the Parece Vela Basin
文献摘要：
Since the Early Cenozoic,the Philippine Sea Plate(PSP)has undergone a complex tectonic evolution.During this period the Parece Vela Basin(PVB)was formed by seafloor spreading in the back-arc region of the proto-Izu-Bonin-Mariana(IBM)arc.However,until now,studies of the geological,geophysical,and tectonic evolution of the PVB have been rare.In this study,we obtained in situ trace element and major element compositions of minerals in basalts collected from two sites in the southern part of the PVB.The results reveal that the basalts from site CJ09-63 were likely formed via～10％partial melting of spinel-garnet lherzolite,while the basalts from site CJ09-64 were likely formed via 15％-25％partial melting of garnet lherzolite.The order of mineral crystallization for the basalts from site CJ09-64 was olivine,spinel,clinopyroxene,and plagioclase,while the plagioclase in the basalts from site CJ09-63 crystallized earlier than the clinopyroxene.Using a plagioclase-liquid hygrometer and an olivine-liquid oxybarometer,we determined that the basalts in this study have high H2O contents and oxygen fugacities,suggesting that the magma source of the Parece Vela basalts was affected by subduction components,which is consistent with the trace element composition of whole rock.
文献关键词：
中图分类号：
作者姓名：
YUAN Long;YAN Quanshu
作者机构：
College of Earth Science and Engineering,Shandong University of Science and Technology,Qingdao,Shandong 266590,China;Laboratory for Marine Geology,Qingdao National Laboratory for Marine Science and Technology,Qingdao,Shandong 266061,China;Key Laboratory of Marine Geology and Metallogeny,First Institute of Oceanography,Ministry of Natural Resources,Qingdao,Shandong 266061,China
文献出处：
引用格式：
[1]YUAN Long;YAN Quanshu-.Source Lithology and Magmatic Processes Recorded in the Mineral of Basalts from the Parece Vela Basin)[J].地质学报（英文版）,2022(06):1991-2006
A类：
CJ09,hygrometer,oxybarometer,fugacities
B类：
Source,Lithology,Magmatic,Processes,Recorded,Mineral,Basalts,from,Parece,Vela,Basin,Since,Early,Cenozoic,Philippine,Sea,Plate,PSP,has,undergone,complex,tectonic,evolution,During,this,period,PVB,was,formed,by,seafloor,spreading,back,arc,region,proto,Izu,Bonin,Mariana,IBM,However,until,now,studies,geological,geophysical,have,been,rare,In,study,obtained,situ,trace,element,major,compositions,minerals,basalts,collected,two,sites,southern,results,reveal,that,were,likely,via,partial,melting,spinel,garnet,lherzolite,while,order,crystallization,olivine,clinopyroxene,plagioclase,crystallized,earlier,than,Using,liquid,determined,high,H2O,contents,oxygen,suggesting,magma,source,affected,subduction,components,which,consistent,whole,rock
AB值：
0.525912
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