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学科主题: Geosciences, Multidisciplinary
题名: Geophysical survey on the tectonic and sediment distribution of Qinghai Lake basin
作者: An, ZS ; Wang, P ; Shen, J ; Zhang, YX ; Zhang, PZ ; Wang, SM ; Li, XQ ; Sun, QL ; Song, YG ; Al, L ; Zhang, YC ; Jiang, SR ; Liu, XQ ; Wang, Y
通讯作者: jishen@niglas.ac.cn
关键词: sediment ; geophysical survey ; Qinghai Lake
刊名: SCIENCE IN CHINA SERIES D-EARTH SCIENCES
发表日期: 2006
卷: 49, 期:8, 页:851-861
收录类别: sci
部门归属: Chinese Acad Sci, Nanjing Inst Geog & Limnol, Nanjing 210008, Peoples R China; Chinese Acad Sci, Inst Earth Environm, Xian 710075, Peoples R China; Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China; China Earthquake Adm, Inst Geol, Beijing 100029, Peoples R China
项目归属: 海洋地质
摘要: The intensive geophysical survey of Qinghai Lake reveals the buried depth of lake sediments and their distribution features. The result indicates that there are three important interphases of Qinghai Lake sediments: T1 is the rife interphase of the lake, above which sediments are spread all over the lake basin with roughly the same thickness; T5 is the interphase from which the neotectonic sedimentary cycle begins, and its above sedimentary environment is relatively stable; Tg is the base of the lake basin. Five west-northwest (WNW) fault belts defined the tectonic structure of Qinghai Lake basin: the central hunch around Haixin Shan with two subbasins both in its north and south. The thickness of the lake sediments varies at different places, the thickest sediments are found within the two subbasins. According to the depth that the Sparker System can reach, sediment in the northern subbasin is deeper than 560 m, while sediment in the southern subbasin is deeper than 700 m. The correlation between the seismic sequence stratigraph and the lithology of onshore core shows that Qinghai Lake sediments consist of muddy silt, clay silt, silty clay, gravel silty clay, etc.
原文出处: 查看原文
WOS记录号: WOS:000240412300006
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/4400
Appears in Collections:中科院边缘海地质重点实验室_期刊论文

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An, ZS; Wang, P; Shen, J; Zhang, YX; Zhang, PZ; Wang, SM; Li, XQ; Sun, QL; Song, YG; Al, L; Zhang, YC; Jiang, SR; Liu, XQ; Wang, Y.Geophysical survey on the tectonic and sediment distribution of Qinghai Lake basin,SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2006,49(8):851-861
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