摘要
新场气田东部发育两组走向近南北的逆冲断层，它们提供了该区断弯褶皱、断展褶皱和断鼻构造形成的原动力。根据该区剖面结构和平面特征，划分出合兴场南北向形变域和新场东西向形变域。燕山中、晚期形成的古隆起构成了该区天然气的区域成矿背景，古隆起之上的有利储集相带控制了天然气富集。
Two systems of overthusts in SN trend are developed in the east part of Xinchang gas ficld,which provideo the motivity for the formation of fault fold,propagation fold and fault nose.Hexingchang SN deformational domain and Xinchang WE deformational domain are classifed based on the vertical and horizantal characteristics in this area.The palaeouplift formed in the middlelast Yanshanian provides the gas regional background in which the faverable reservoirs controlling the gas accumulation.
出处
《矿物岩石》
CAS
CSCD
北大核心
1997年第4期55-60,共6页
Mineralogy and Petrology
关键词
坳陷
新场地区
构造变形
成藏条件
天然气
west Sichuan depresssions Xinchang area structural deformation formingfas condition
