Regional Tectonic Evolution and Geodynamics in Jianping Area , Western Liaoning
详细信息
- 责任者：Yu Haifeng (Institute of Geological Exploration ; Dalian 116100 ; China) ; Dong Wande
- 刊名：Geology and Resources
- 出版年：2011
- 卷期：20(1)
- 关键词：构造演化 ; structural evolution ; 地球动力学 ; geodynamics ; 辽宁 ; Liaoning Province
- 页码：p.27-35
- 图表：1 illus., 1 table, 20 refs.
- 分类号：0300
- issnNo：ISSN1671-1947
- isbnNo：CN21-1458/P
摘要
Based on the sediment formation, metamorphism, magmatic activity and structural deformation, the tectonic evolution in Jianping area of the Western Liaoning Province is divided into four stages: 1) the formation stage of craton basement (Neoarchean to the end of Paleoproterozoic); 2) the development stage of craton cover (from the beginning of Mesoproterozoic to the end of Paleozoic); 3) the orogenic stage of intra-plate (end of Late Paleozoic to Mesozoic); and 4) the development of neotectonism (since Paleogene). The geodynamic characteristics indicate that the orogenic mechanism of the initial orogenic stage of intraplate is the intracontinental subduction resulted from the collision of Xingmeng orogenic belt. The orogenic mechanism of the main stage is the continental marginal orogeny, which is obviously caused by the subduction of Pacific Plate.
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