Late Paleozoic Strata and Tectonic Facies in the Northern Margin of the Eastern Kunlun Orogen and Their Tectonic Implications
详细信息
- 责任者：Wang Min (China University of Geosciences ; Beijing 100083 ; China) ; Liu Aimin
- 刊名：Acta Geologica Sinica
- 出版年：2009
- 卷期：83(11)
- 关键词：大地构造相 ; tectonic facies ; 大地构造 ; tectonics ; 昆仑山 ; Kunlun Mountains
- 页码：p.1601-1611
- 图表：7 illus., 22 refs.
- 分类号：0300
- issnNo：ISSN0001-5717
- isbnNo：CN11-1951/P
摘要
Detail studies on modern continental margins have demonstrated that tectonic divisions and evolutions only based on ophiolite suits are always elusive. In contrast, analyses of sedimentary buildups may provide positive constrains for identification of tectonic units and then help deduce reasonable tectonic evolutions. Detailed geological mapping with scale of 1∶250 000 on the west segment of the southern Kunlun suture demonstrated that the southern Kunlun ophiolite suit represents in fact an infant rather than a mature oceanic crustal slice. The associated sedimentary rocks are mainly continental clastics or carbonates. The Jurassic piggyback foreland basin developing upon the folded Permian to Triassic strata indicated the termination of the Indosinian tectonic event.