Post-rift uplift and focused fluid flow in the passive margin of northern South China Sea
Post-rift uplift and focused fluid flow in the passive margin of northern South China Sea
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南海北部被动边缘裂谷后隆升与聚焦流体流动
DOI：
10.1016/j.tecto.2013.12.013
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发表时间：
2014-03
期刊：
影响因子：
2.9
通讯作者：
Spence, George
中科院分区：
文献类型：
--
作者：
Zhao, Shujuan;Luedmann, Thomas;Chen, Duanxin;Spence, George
中新世晚期，南海北缘发生了一次重要的断陷后构造事件，具有广泛的隆升和流体流动。根据二维、三维地震资料和钻井资料分析，构造事件主要影响东沙隆起及邻近凹陷。构造变形可能发生在东沙隆起、番禺隆起东部和朱一凹陷的几个凹陷中。研究区裂后变形以断裂、侵蚀、火成岩活动和热液流动为特征。构造运动造成了丰富的次生NW和WNW张性和转张断层，长度为1至10公里。它还产生了明显的角度不整合，标志着构造运动的时间。仅在东沙隆起靠近大陆-海洋过渡带的地层中发现新近纪晚期火成岩。流花碳酸盐岩台地及邻近凹陷地热活动发生。东部地区变形较西部地区剧烈。根据层序地层学推断，构造事件主要发生在晚中新世晚期，结束于Mio/上新世边界（5.5 Ma）。构造运动的动力机制可能与南海板块在马尼拉海沟处俯冲到菲律宾海板块下方有关。当大陆-海洋过渡带内低密度地壳开始俯冲时，巨大的阻力可能导致东沙地区岩石圈弯曲和地壳隆起。
An important post-rifting tectonic event with extensive uplift and fluid flow took place at the northern margin of the South China Sea (SCS) during the late Miocene. Based on an analysis of two- and three-dimensional seismic data plus drilling well data, the tectonic event mainly affected the Dongsha Rise and the adjacent depressions. Tectonic deformation likely occurred in the Dongsha Rise, the eastern part of the Panyu Swell and several depressions of the Zhu I Sag. The post-rifting deformation in the study area was characterized by faulting, erosion, igneous activity and hydrothermal fluid flow. The tectonic movement caused abundant secondary NW and WNW tensional and transtensional faults, with lengths of 1 to 10 km. It also created a clear angular unconformity which marks the time of the tectonic movement. Late Neogene igneous rocks are found in the strata in the Dongsha Rise only close to the continent–ocean transition zone. Geothermal activity occurred in the Liuhua carbonate platform and adjacent depressions. Deformation is more intense in the eastern area than in the western area. According to sequence stratigraphy, we infer that the tectonic event mainly occurred in the late period of Late Miocene and ended at the Mio/Pliocene boundary (5.5 Ma). The dynamic mechanism for tectonic movement could be associated with subduction of the South China Sea slab beneath the Philippine Sea Plate at the Manila trench. When subduction of lower density crust within the continental–ocean transition zone was initiated, large resistance stresses may have led to lithosphere bending and crustal uplift in the Dongsha area.
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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
DOI：
10.3969/j.issn.0001-5733.2009.07.019
发表时间：
2009-07
期刊：
--
影响因子：
--
作者：
Wu Shiguo;Dong Dongdong;Yang Sheng-xiong;Zhang Guang‐xue;Wang Zhi-jun;Li Qing-ping;Liang Jinqiang;Gong Yue-hua;Sun Yun-bao
通讯作者：
Wu Shiguo;Dong Dongdong;Yang Sheng-xiong;Zhang Guang‐xue;Wang Zhi-jun;Li Qing-ping;Liang Jinqiang;Gong Yue-hua;Sun Yun-bao
影响因子：
2.9
作者：
Junjiang Zhu;X. Qiu;H. Kopp;Hui-long Xu;Zongxun Sun;A. Ruan;Jinlong Sun;Xiaodong Wei
通讯作者：
Junjiang Zhu;X. Qiu;H. Kopp;Hui-long Xu;Zongxun Sun;A. Ruan;Jinlong Sun;Xiaodong Wei
影响因子：
5.8
作者：
K. Mcintosh;H. Avendonk;L. Lavier;W. R. Lester;D. Eakin;Francis T. Wu;Char‐Shine Liu;Chao‐Shing Lee
通讯作者：
K. Mcintosh;H. Avendonk;L. Lavier;W. R. Lester;D. Eakin;Francis T. Wu;Char‐Shine Liu;Chao‐Shing Lee
DOI：
--
发表时间：
2004
期刊：
Earth Science-journal of China University of Geosciences
影响因子：
--
作者：
Liu Zhen-hu
通讯作者：
Liu Zhen-hu