藏北可可西里盆地老第三纪沉积物源区分析及其高原隆升意义

刘志飞; 王成善; 伊海生; 刘顺

Volume 26 Issue 1

Jan. 2001

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LIU Zhi-fei, WANG Cheng-shan, YI Hai-sheng, LIU Shun, 2001. PROVENANCE OF PALEOGENE SEDIMENTS IN HOH XIL BASIN, NORTH OF QINGZANG PLATEAU, AND ITS SIGNIFICANCE FOR PLATEAU UPLIFT. Earth Science, 26(1): 1-6.

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PROVENANCE OF PALEOGENE SEDIMENTS IN HOH XIL BASIN, NORTH OF QINGZANG PLATEAU, AND ITS SIGNIFICANCE FOR PLATEAU UPLIFT

1.
Laboratory of Marine Geology, Tongji University, Shanghai 200092, China
2.
Institute of Sedimentary Geology, Chengdu University ofTechnology, Chengdu 610059, China

Received Date: 2000-07-31
Publish Date: 2001-01-25

Abstract

Abstract

The Hoh Xil basin, the largest Tertiary sedimentary basin in the hinterland of the Qingzang plateau between the Kunlun Mountain and the Tanggula Mountain, may be significant for the research into the early uplift and the crustal shortening of the plateau. The 5 452.8 m-thick Eocene-Early Oligocene Fenghuoshan and Yaxicuo groups preserved in the basin consist mainly of clastic rocks and mudstone. The analysis of the clastic-rock provenance shows that the Fenghuoshan Group originated mainly from the Permian-Triassic strata in the Tanggula orogenic zone in the south, and that the Yaxicuo Group originated mainly from the Carboniferous-Permian strata in the Tanggula, Bairizhajia, and Heishishan-Gaoshan orogenic zones in the south. These sedimentary evolutionary process results from the persistent strengthening of the Paleogene tectonic uplift of the orogenic zone in the southern Hoh Xil basin, indicating that the north of the Qingzang plateau had already been uplifted to a certain height in the sedimentary period of the Yaxicuo Group.
- provenance,
- tectonic uplift,
- Paleogene,
- Hoh Xil basin,
- Qingzang plateau

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References(16)

References

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