典型文献
Oceanic crustal structure and tectonic origin of the southern Kyushu-Palau Ridge in the Philippine Sea
文献摘要：
A new high-resolution velocity model of the southern Kyushu-Palau Ridge (KPR) was derived from an active-source wide-angle seismic reflection/refraction profile. The result shows that the KPR crust can be divided into the upper crust with the P-wave velocity less than 6.1 m/s, and lower crust with P-wave velocity between 6.1 km/s and 7.2 km/s. The crustal thickness of the KPR reaches 12.0 km in the center, which gradually decreases to 5.0–6.0 km at sides. The velocity structure of the KPR is similar to the structures of the adjacent West Philippine Basin and Parece Vela Basin (PVB), indicating a typical oceanic crust. Isostatic analysis shows that some regional compensation occurs during the loading of the KPR, which implies that the KPR was built mainly by magmatism during the splitting of the Izu-Bonin-Mariana arc and the following back-arc seafloor spreading of the PVB during 30–28 Ma BP. The absence of the thick middle crust (6.0–6.5 km/s) and high velocity lower-crustal layers (7.2–7.6 km/s) suggest that arc magmatism plays a less important role in the KPR formation.
文献关键词：
中图分类号：
作者姓名：
Xiongwei Niu;Pingchuan Tan;Weiwei Ding;Wei Wang;Yao Wei;Xiaodong Wei;Aiguo Ruan;Jie Zhang;Chunyang Wang;Yong Tang;Jiabiao Li
作者机构：
Key Laboratory of Submarine Geosciences,Ministry of Natural Resources/Second Institute of Oceanography,Ministry of Natural Resources,Hangzhou 310012,China;Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai),Zhuhai 519080,China;School of Oceanography,Shanghai Jiao Tong University,Shanghai 200240,China
文献出处：
引用格式：
[1]Xiongwei Niu;Pingchuan Tan;Weiwei Ding;Wei Wang;Yao Wei;Xiaodong Wei;Aiguo Ruan;Jie Zhang;Chunyang Wang;Yong Tang;Jiabiao Li-.Oceanic crustal structure and tectonic origin of the southern Kyushu-Palau Ridge in the Philippine Sea)[J].海洋学报（英文版）,2022(01):39-49
A类：
Isostatic
B类：
Oceanic,crustal,tectonic,origin,southern,Kyushu,Palau,Ridge,Philippine,Sea,new,high,resolution,velocity,model,KPR,was,derived,from,active,source,wide,angle,seismic,reflection,refraction,profile,result,shows,that,can,divided,into,upper,wave,less,than,lower,between,thickness,reaches,center,which,gradually,decreases,sides,similar,structures,adjacent,West,Basin,Parece,Vela,PVB,indicating,typical,oceanic,analysis,some,regional,compensation,occurs,during,loading,implies,built,mainly,by,magmatism,splitting,Izu,Bonin,Mariana,arc,following,back,seafloor,spreading,absence,middle,layers,suggest,plays,important,role,formation
AB值：
0.533443
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