Dynamics of Late Paleozoic Pull-Apart Basin and Its Relationship with Mineralization of Gold Polymetallic Deposits in Fengxian Taibai Counties, Shaanxi Province, China
详细信息
- 责任者：Fang Weixuan (State Key Laboratory of Geological Processes and Mineral Resources ; China University of Geosciences ; Beijing 100083 ; China) ; Huang Zhuanying
- 刊名：Acta Sedimentologica Sinica
- 出版年：2012
- 卷期：30(3)
- 关键词：金矿 ; gold ores ; 多金属矿 ; polymetallic ores ; 拉分盆地 ; pull-apart basins ; 陕西 ; Shaanxi Province
- 页码：p.405-421
- 图表：8 illus., 38 refs.
- 分类号：1001
- issnNo：ISSN1000-0550
- isbnNo：CN62-1038/P
摘要
Fengxian-Taibai sedimentary basin could be the Paleozoic pull-apart basin which might be controlled by oblique-directed subduction and collision of the Qinling and Yangtze plates based on new research methods, i.e., re-construction and restoration of geotectonic-paleogeographic position and tectonic lithofacies. During the initial stage of the Middle Devonian period, Fengxian-Taibai sedimentary basin was enclosed and separated by marginal vertical base-uplifting, and dynamics of basin was controlled by four groups of synsedimentary faults, resulted in continual migrations of subsidence and sedimentary centers in the Late Paleozoic basin. During the middle stage of the Middle Devonian period, subsidence and sedimentary centers trending north-westdirected might be located in north part of Fengxian-Taibai basin while subsidence and sedimentary centers trending north-westdirected shrink in the center part of Fengxian-Taibai pull-apart basin during the Late Devonian period.