柴达木盆地西部地区古—始新世残-坡积物的判别及意义

基金项目: 中国石油天然气股份有限公司重大科技专项“柴达木盆地建设千万吨油气田综合配套技术研究”子课题“柴达木盆地基础地质深化研究与战略选区”（2011E-0303）资助。

Identification and significance of the Paleocene-Eocene residual-slope sediments in western Qaidam Basin

1.
PetroChina Hangzhou Research Institute of Geology, Hangzhou 310023, Zhejiang, China
2.
China University of Petroleum, Beijing 102249, China
3.
Exploration and Development Institute of Qinghai Oilfield, Dunhuang 736202, Gansu, China

摘要: 提要：柴达木盆地新生代沉积特征复杂、相变快、岩性类型多样。本文从柴达木盆地昆北断阶带地质背景、岩心特征、岩石学特征等方面，系统地分析了昆北断阶带基岩上覆地层的岩性组合特征，确定其为残-坡积物。残-坡积物的新认识增加了柴达木盆地油气勘探的岩性油气藏新类型，为柴达木盆地基岩上覆地层的油气勘探提出了新的勘探方向。
- 柴达木盆地 /
- 古—始新世 /
- 残积物 /
- 坡积物 /
- 判识
Abstract: Abstract：The Cenozoic Qaidam Basin has complex sedimentary characteristics, rapid transition of sedimentary facies and various types of lithology. The authors made a systematic analysis of the lithologic characteristics of the overlying strata of the bedrock in the North Kunlun step-fault zone from geological background, core characteristics and microscopic characteristics, and concluded that the sediments are residual-slope sediments. The new understanding of the residual-slope sediments has added a new type of oil and gas reservoirs for oil and gas exploration in the Qaidam Basin and pointed out a new direction for oil and gas exploration of the overlying strata in the bedrock of Qaidam Basin.
- Qaidam Basin /
- Paleocene-Eocene /
- residual sediments /
- slope sediments /
- judgment