Tectono-Thermal Events and Chronological Framework in Zoige and Its Periphery
详细信息
- 责任者：Deng Bin (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Liu Shugen
- 刊名：Earth Science
- 出版年：2013
- 卷期：38(2)
- 关键词：构造热事件 ; tectonic thermal event ; 四川 ; Sichuan Province
- 页码：p.317-328
- 图表：illus., 4 tables, 46 refs.
- 分类号：0300
- issnNo：ISSN1000-2383
- isbnNo：CN42-1233/P
摘要
Based on analysis of the sedimentary features, fission track data, ESR dating and Ar-Ar dating, we argue that there are seven tectono-thermal events in Zoige and its periphery from the Late Triassic. The first tectono-thermal events (D1) took place at the end of the Carnian to the beginning of the Norian stage to form the tectonic framework of Zoige area; the second (D2) and the fourth (D4) tectono-thermal events took place at the early of Jurassic (200-180 Ma) and 130-110 Ma, respectively. They are the key change events in tectonic framework at each time. The seventh (D7) took place at the early of Miocene (～20 Ma), as the most important tectonic event to form the Tibet Plateau. The other three events (D3, D5, D6) took place at 160-140 Ma, 70-60 Ma,50-40 Ma, respectively.