沉积与特提斯地质2016，Vol.36Issue(4)：60-70,11.
鄂尔多斯盆地中部二叠系山西组和下石盒子组构造沉降定量恢复及沉积响应
Tectonic subsidence reconstruction and sedimentary responses of the Permian Shanxi and Lower Shihezi Formation in central Ordos Basin
摘要
Abstract
The present paper focuses on the quantitative tectonic subsidence reconstruction and sedimentary responses of the Permian Shanxi and Lower Shihezi Formation in central Ordos Basin by using a back stripping method. The tectonic subsidence thickness of the Shanxi Formation ranges from 30 to 95 m, with a maximum subsidence thickness in the central area and gradual decrease towards both the north and south. The secondary subsidence center appears in the norwestern part, with the tectonic subsidence rates from 6 to 20 m/Ma. The tectonic subsidence thickness of the Lower Shihezi Formation ranges from 75 to 110 m, with the tectonic subsidence rates of 9 to 14. 5 m/Ma in the central area. Controlled by the differential tectonic subsidence rates, the sedimentary facies types comprise the fluvial, delta and littoral and shallow lake facies, and the fluvial and delta depositional systems have greater scales in the north than in the south. The results of research in this study not only improve our knowledge of tectonic subsidence but also offer an important tool for the research of sedimentary characteristics in the study areas.关键词
鄂尔多斯盆地/山西组/下石盒子组/构造沉降/定量恢复/沉积响应Key words
Ordos Basin/Shanxi Formation/Lower Shihezi Formation/tectonic subsidence/quantitative reconstruction/sedimentary response分类
天文与地球科学引用本文复制引用
刘建良,刘可禹,黄秀..鄂尔多斯盆地中部二叠系山西组和下石盒子组构造沉降定量恢复及沉积响应[J].沉积与特提斯地质,2016,36(4):60-70,11.基金项目
中国石油天然气股份有限公司科技管理部项目(No．2011A-0207) （No．2011A-0207）
