Characteristics of a laccolith along the LRTPB fault zone between Pearl River Mouth Basin and Southwest Taiwan Basin
Characteristics of a laccolith along the LRTPB fault zone between Pearl River Mouth Basin and Southwest Taiwan Basin
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珠江口盆地与西南台湾盆地之间的LRTPB断裂带沿线的石化石特征
DOI：
10.3319/tao.2021.09.07.01
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Xiao Wang
中科院分区：
文献类型：
--
作者：
Li Bo'an;Qunshu Tang;Pin Yan;Junhui Yu;Xiao Wang
南海北方边缘常被认为是一个贫岩浆的被动大陆边缘。海底扩张停止后的岩浆活动主要发生在大陆-海洋过渡带（COT）。台湾西南盆地（SWTB）和珠江口盆地（PRMB）之间的吕宋-琉球转换板块边界（LRTPB）上存在侵入岩，其演化机制尚未得到很好的研究。在这里，详细的结构和地球物理特征的大规模异常（LSA）揭示了高分辨率多道地震（MCS）剖面LRTPB划分的SWTB和PRMB。通过对LSA的速度估计、AVO分析和地质解释，我们认为LSA是一种侵入火成岩，并进一步将其划分为岩盖。LRTPB上岩盖和周围岩床的共存表明岩浆活动的北限比COT带更北。岩盖的拉长形态与北西向的LRTPB一致，表明研究区岩浆活动可能受断裂活动的控制。文章历史：接收于2020年12月29日修订于2021年8月27日接受于2021年9月7日
The northern margin of the South China Sea (SCS) is often regarded as a magmapoor passive continental margin. Magmatic activities occurred after the cessation of seafloor spreading were founded mainly over the Continent-Ocean Transition (COT) zone. Intrusive rocks are observed in the Luzon-Ryukyu Transform Plate Boundary (LRTPB) dividing Southwest Taiwan Basin (SWTB) and Pearl River Mouth Basin (PRMB) north of the COT and their evolution mechanisms are not very well-studied. Here, detailed structural and geophysical features of a large-scale anomaly (LSA) is revealed from high-resolution multi-channel seismic (MCS) profiles over the LRTPB dividing the SWTB and the PRMB. After velocity estimation, AVO analysis, and geological interpretation for the LSA, we suggest that the LSA is an intrusive igneous rock and further classified as a laccolith. The coexistence of the laccolith and surrounding sills over the LRTPB shows that the north limit of magmatism is further north than the COT zone. The elongated shape of the laccolith is accordant to the NW directional LRTPB, indicating that magmatic activities of study region maybe controlled by the faulting. Article history: Received 29 December 2020 Revised 27 August 2021 Accepted 7 September 2021
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DOI：
10.1007/s11001-010-9112-y
发表时间：
2010-12
期刊：
Marine Geophysical Researches
影响因子：
--
作者：
D. Cukur;S. Horozal;Dae-Choul Kim;G. Lee;Hyun-chul Han;Moo-Hee Kang
通讯作者：
D. Cukur;S. Horozal;Dae-Choul Kim;G. Lee;Hyun-chul Han;Moo-Hee Kang
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
台湾西南部南海斜坡上的沉积物波：对北太平洋深水侵入南海的影响
影响因子：
4.2
作者：
Gong, Chenglin;Wang, Yingmin;Peng, Xuechao;Li, Weiguo;Qiu, Yan;Xu, Shang
通讯作者：
Xu, Shang
南海最东北部大陆边缘和洋盆的结构：地球物理约束和构造意义
DOI：
10.1007/s11001-007-9014-9
发表时间：
2007-03
期刊：
Marine Geophysical Researches
影响因子：
--
作者：
通讯作者：
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影响因子：
2
作者：
Weina Zhao;Xun-hua Zhang;Xiangjun Meng;Zhiqiang Wu;Jianghao Qi;T. Hao;Yanpeng Zheng;Liu Kai-
通讯作者：
Weina Zhao;Xun-hua Zhang;Xiangjun Meng;Zhiqiang Wu;Jianghao Qi;T. Hao;Yanpeng Zheng;Liu Kai-