Tectonic Framework of the Tarim Basin
详细信息
- 责任者：Cui Junwen (Key Laboratory of Continental Dynamics ; MLR ; Institute of Geology ; CAGS ; Beijing 100037 ; China) ; Tang Zhemin
- 刊名：Acta Petrologica Sinica
- 出版年：2011
- 卷期：27(1)
- 关键词：构造格架 ; tectonic framework ; 构造应力场 ; tectonic stress field ; 塔里木盆地 ; Tarim Basin
- 页码：p.231-242
- 图表：6 illus., 56 refs.
- 分类号：0300
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
摘要
This paper aims to analyze the tectonic framework of the Tarim Basin using regional tectonics. There is a large scale E-W fracture tectonic belt in the center of the Tarim Basin, called the central Tarim tectonic belt or the central Tarim fracture belt Regarding its profile, it presents a back-thrust (anticlinal thrust) fracture combination whose formation began in the Early Paleozoic period and whose intense activities continued until after the Triassic Period. The fracture belt, which comprises natural features caused by the geographic thrusting,slipping and vertical squeezing,includes the major oil-bearing zones of the Tarim Basin. The areas from the foreland basin of south Tarim to the central Tarim fracture belt (the central uplift belt of Tarim) is distinguished by the basic characteristics of an E-W tectono-magmatic belt, and superimposed with NEE faulted structure (fault rifts and fault sags), whose fracture assemblages are analogous to the fracture assemblages of south Altyn terrene at the south of the central Altyn fault. The range from the north of the central Tarim fracture belt to the foreland basin of the northern Tarim is a region characterized by a long-term down-warping. The conjunction belt at the west Kunlun-Tarim Basin is manifested as the northward thrust faulting of the west Kunlun Mountains, the intense compression of its piedmont zone, and the sharp subsidence of the foreland basin of South Tarim.
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