柴达木盆地七个泉地区高分辨率层序格架建立方法研究

Construction of the high-resolution sequence framework in the Qigequan region,Qaidam Basin,Qinghai

1. College of Resources and Information, China University of Petroleum, Beijing 102249, China;
2. State Key Laboratory of Petroleum Resources and Exploration, China University of Petroleum, Beijing 102249, China;
3. Qinghai Oil Field Company, PetroChina, Dunhuang 736200, Gansu, China

摘要: 本文在建立柴达木盆地七个泉地区高分辨率层序格架时,提出了整体上以Vail的经典层序地层学理论方法和概念术语为基础,对于该理论体系中分析较薄弱的更高级别的层序,用Cross的高分辨率层序地层学理论方法加以研究。这样既克服了Vail理论体系中对高级别层序划分的薄弱环节,又发挥了Cross的高分辨层序划分在中短期基准面旋回及其地层响应和成因划分对比研究上的优势,形成了一套集各家之所长的综合层序地层学划分方法。
- 柴达木盆地 /
- 高分辨率层序格架 /
- 层序地层学
Abstract: The high-resolution sequence framework is constructed for the Qigequan region,Qaidam Basin,Qinghai on the basis of both the classical theory and fundamentals of sequence stratigraphy by Vail and high-resolution sequence stratigraphic theory and method by Cross.The division and correlation of the high-resolution sequences show that the lower member of the Lower Ganchaigou Formation(E₃¹) is built up of five 5th-order sequences from SSC1 to SSC5 in a descending order,and the upper member of the Lower Ganchaigou Formation(E₃²) consists of six 4th-order sequences from MSC1 to MSC6 in a descending order.The results of research in this study may deliver important geological information for the petroleum exploration in the Qigequan region.
- Qaidam Basin /
- high-resolution sequence framework /
- sequence stratigraphy