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学科主题: Geochemistry & Geophysics ; Oceanography
题名: A study of faulting patterns in the Pearl River Mouth Basin through analogue modeling
作者: [Zhang, Yun Fan ; Sun, Zhen] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China
通讯作者: geozyf@163.com
关键词: Analogue modeling ; Rheological stratifications ; Fault pattern ; South China Sea ; Crustal thinning
刊名: MARINE GEOPHYSICAL RESEARCH
发表日期: 2013
卷: 34, 期:41702, 页:209-219
部门归属: 海洋地质
资助者: Funds for this study were provided by the Chinese Natural Science Fundation of China (No. 41206040, No. 41106055), National Key Basic Research Development Plan (2009CB219401), National Science and Technology Major Project (2011ZX05025-002-01).
摘要: The Pearl River Mouth Basin is one of the most favorable areas for gas exploration on the northern slope of the South China Sea. Differences of fault patterns between shelf and slope are obvious. In order to investigate the tectonic evolution, five series of analogue modeling experiments were compared. The aim of this study is to investigate how crustal thickness influences fault structures, and compare this to the observed present-day fault structures in the Pearl River Mouth Basin. The initial lithospheric rheological structure can be derived from the best fit between the modeled and observed faults. The results indicate. (1) Different initial crustal rheological structures can produce different rift structures in the Pearl River Mouth Basin. (2) We also model that the Baiyun Sag in the southern Pearl River Mouth Basin may have had a thinned crust before rifting compared to the rest of the basin. (3) The thickness ratio of brittle to ductile crust in southern Pearl River Mouth Basin is less than normal crust, suggesting an initially hot and weak lithosphere. (4) Slightly south of the divergent boundary magma may have taken part in the rifting process during the active rift stage.
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000328450000005
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/11096
Appears in Collections:中科院边缘海地质重点实验室_期刊论文

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[Zhang, Yun Fan; Sun, Zhen] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China.A study of faulting patterns in the Pearl River Mouth Basin through analogue modeling,MARINE GEOPHYSICAL RESEARCH,2013,34(41702):209-219
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