Geodynamic Evolution of Petroliferous Basins in Northwest China(PDF)
《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]
- Issue:
- 2015年第05期
- Page:
- 1-16
- Research Field:
- 基础地质与矿产地质
- Publishing date:
Info
- Title:
- Geodynamic Evolution of Petroliferous Basins in Northwest China
- Author(s):
- ZHENG Meng-lin; QIU Xiao-zhi; HE Wen-jun; FEI Li-ying; TANG Yong; JIA Xi-yu; CHEN Lei; KONG Yu-hua; WU Hai-sheng
- 1. Petroleum Exploration and Development Institute, Xinjiang Oilfield Company, PetroChina, Karamay 834000,Xinjiang, China; 2. School of Resources, Shijiazhuang University of Economics, Shijiazhuang 050031, Hebei, China
- Keywords:
- basin dynamics; superposed evolution; petroleum accumulation; regional tectonic; Northwest China
- PACS:
- P618.130.2;TE121
- DOI:
- -
- Abstract:
- According to petroleum exploration data and previous results, the structures of Tarim Basin, Junggar Basin, Qaidam Basin and the basin groups of Alxa-Hexi Corridor-Middle Qilian in the north of Kunlun orogenic belt and the west of Helan mountain structural belt were analyzed. The results show that those basins, which are superposed and transformed in many periods, exist on the stable plate (block), and have different types in different periods; Northwest China is in the paleo Asian tectonic zone from Sinian period to Paleozoic, basins are formed and disappeared by the open and closure between plates (blocks) during that time, to Mesozoic, Northwest China becomes part of Eurasian continent, the formations of basins and mountains are affected by Tethys ocean and the deep tectonic background, the far distance effect produced by the collision of India plate and Eurasia plate in Cenozoic forms the present basin-mountain structure; the interaction effects between the deep tectonic and basin, between the deep tectonics of basin and orogenic belt, and between the shallow basin and orogenic belt, form the foundation of the basin dynamic evolution in Northwest China; petroliferous basins in Northwest China experience two basin evolution stages, that is, the ocean continent transformation and the intra continental evolution; the key tectonic events about the basin formation and disappearance reconstruction are consistent in the north of Xinjiang, Tarim Basin, Qaidam Basin and the basin groups of Alxa-Hexi Corridor-Middle Qilian during the basin evolution periods; controlled by the regional geotectonics, there are significant differences between the sedimentary formation and the characteristics of tectonic activity in Junggar Basin, Tarim Basin and the east area of Arkin tectonic belt; the regional geotectonics control the development regions and strata of source rocks in the basin, form paleo uplifts and piedmont tectonic belts with different characteristics, and make the oil and gas accumulation controlling factors different in each basin.
Last Update: 2015-09-28