摘要
对柴达木盆地北缘 (简称柴北缘 )地区的构造型式 ,包括其发育背景、发育的几何扩展方式 ,以及平面、剖面展布特征及其分带性进行了研究 ;对主干逆冲断裂带及其间的逆冲推覆体带、逆冲席带和低应变区的特征进行了详细描述。通过野外观察和室内构造反演来研究推覆构造带的发展演变模式及形成机理 ,指出其逆冲推覆构造带和隐伏逆冲前缘带是最有利的油气勘探目标。
A research has been performed on the structural style in the northern margin of Chaidam basin, with analyses made on the formative background, patterns of geometric spreading in the plane and in the section, and zonation of the structural features. The main thrust-slip fault belts and the nappe structure zones, thrust sheets and low strain regions lying in between the main thrust-slip fault belts are described in detail. Field observations and experimental modeling have been used to deduce the origination-evolution mode and formative mechanism of the nappe structures. It is pointed out that the thrust nappe structure belts and the hidden thrust fore-borderlands are favorable prospects for hydrocarbon exploration in the area.
出处
《西南石油学院学报》
CSCD
2000年第3期9-12,共4页
Journal of Southwest Petroleum Institute
基金
"油气地质及开发工程"国家重点实验室开放基金!资助项目 (PLN972 5 )的成果之一
关键词
柴达木盆地
构造类型
构造特征
油气勘探
Chaidam basin, structural style, thrust-slip, mechanism, experimental modeling, exploration prospect
