Paleogene Thrust System in Southern Qiangtang Basin, Central Tibetan Plateau

详细信息   

• 责任者：Wu Zhenhan (Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Ye Peisheng
• 刊名：Geological Bulletin of China
• 出版年：2011
• 卷期：30(7)
• 关键词：推覆构造 ; nappe structure ; 上冲断层 ; upthrust ; 羌塘盆地 ; Qiangtang Basin
• 页码：p.1009-1016
• 图表：6 illus., 2 plates, 22 refs.
• 分类号：0300
• 出版序号：1570
• issnNo：ISSN1671-2552
• isbnNo：CN11-4648/P

摘要

 A large-scale thrust system was formed in Paleogene, which included Xiaochaka-Shuanghu thrust, Duoma-Qixiang Co thrust and Saibu Co-Zagya thrust in the southern Qiangtang Basin. Permian marbleized limestone and dolomite, Triassic sandstone and shale, Jurassic clastic rocks and carbonate rocks and Triassic-Jurassic ophiolite were trusted southward over Paleogene red-beds along frontier faults of each thrust, forming tectonic slices, outliers and nappes of Permian-Jurassic rocks overlying Paleogene red-beds in north, central and south Qiangtang Basin.  The Paleogene thrust system played an important role in the formation and preservation of oil-gas in southern Qiangtang Basin.