Crustal structure and variation along the southern part of the Kyushu-Palau Ridge
Crustal structure and variation along the southern part of the Kyushu-Palau Ridge
复制标题
九州-帕劳海岭南部地壳结构及变化
DOI：
10.1007/s13131-021-1979-8
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发表时间：
2022-01
影响因子：
1.4
通讯作者：
Tang Yong
中科院分区：
文献类型：
--
作者：
Wei Xiaodong;Ding Weiwei;Ruan Aiguo;Zhang Jie;Niu Xiongwei;Li Jiabiao;Tang Yong
As an interoceanic arc, the Kyushu-Palau Ridge (KPR) is an exceptional place to study the subduction process and related magmatism through its interior velocity structure. However, the crustal structure and its nature of the KPR, especially the southern part with limited seismic data, are still in mystery. In order to unveil the crustal structure of the southern part of the KPR, this study uses deep reflection/refraction seismic data recorded by 24 ocean bottom seismometers to reconstruct a detailed P-wave velocity model along the ridge. Results show strong alongridge variations either on the crustal velocity or the thickness of the KPR. P-wave velocity model is featured with (1) a crustal thickness between 6–12 km, with velocity increases from 4.0 km/s to 7.0 km/s from top to bottom; (2) high gradient (~1 s~(–1)) in the upper crust but low one (<0.2 s~(–1)) in the lower crust; (3) a slow mantle velocity between 7.2 km/s and 7.6 km/s in the uppermost mantle; and (4) inhomogenous velocity anomalies in the lower crust beneath seamounts. By comparing with the mature arc in the Izu-Bonin-Mariana arc in the east, this study suggests the southern part of KPR is a thicken oceanic crust rather than a typical arc crust. The origin of low velocities in the lower crust and upper mantle may be related with crustal differentiation, which implies advanced crustal evolution from normal oceanic crust to partly thicken oceanic crust. High velocities in the lower crust are related to the difference in magmatism.
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影响因子：
2.9
作者：
Y. Pin;Z. Di;Zhao-shu Liu
通讯作者：
Y. Pin;Z. Di;Zhao-shu Liu
南海西南次盆地化石扩散中心的后扩散海山地震结构
DOI：
10.1029/2020jb019827
发表时间：
2020
期刊：
Journal of Geophysical Research: Solid Earth
影响因子：
--
作者：
Zhang Jie;Li Jiabiao;Ruan Aiguo;Ding Weiwei;Niu Xiongwei;Wang Wei;Tan Pingchuan;Wu Zhenli;Yu Zhiteng;Wei Xiaodong;Zhao Yanghui;Zhou Zhiyuan
通讯作者：
Zhou Zhiyuan
影响因子：
3.7
作者：
T. Yamazaki;N. Seama;K. Okino;K. Kitada;M. Joshima;H. Oda;J. Naka
通讯作者：
T. Yamazaki;N. Seama;K. Okino;K. Kitada;M. Joshima;H. Oda;J. Naka
影响因子：
5.8
作者：
S. Kodaira;Takeshi Sato;N. Takahashi;S. Miura;Y. Tamura;Y. Tatsumi;Y. Kaneda
通讯作者：
S. Kodaira;Takeshi Sato;N. Takahashi;S. Miura;Y. Tamura;Y. Tatsumi;Y. Kaneda
DOI：
10.1144/gsl.sp.1984.013.01.09
发表时间：
1984
期刊：
Geological Society, London, Special Publications
影响因子：
--
作者：
R. S. White
通讯作者：
R. S. White