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Geophysical survey on the tectonic and sediment distribution of Qinghai Lake basin
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; jishen@niglas.ac.cn
2006
发表期刊SCIENCE IN CHINA SERIES D-EARTH SCIENCES
ISSN1006-9313
卷号49期号:8页码:851-861
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.
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
关键词Sediment Geophysical Survey Qinghai Lake
学科领域Geosciences, Multidisciplinary
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收录类别sci
资助项目海洋地质
WOS记录号WOS:000240412300006
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被引频次:25[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/4400
专题中科院边缘海地质重点实验室
通讯作者jishen@niglas.ac.cn
推荐引用方式
GB/T 7714
An, ZS,Wang, P,Shen, J,et al. Geophysical survey on the tectonic and sediment distribution of Qinghai Lake basin[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2006,49(8):851-861.
APA An, ZS.,Wang, P.,Shen, J.,Zhang, YX.,Zhang, PZ.,...&jishen@niglas.ac.cn.(2006).Geophysical survey on the tectonic and sediment distribution of Qinghai Lake basin.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,49(8),851-861.
MLA An, ZS,et al."Geophysical survey on the tectonic and sediment distribution of Qinghai Lake basin".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 49.8(2006):851-861.
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