雪峰山西侧地区线性和环状构造特点及其与油气关系探讨  

Characteristics of linear structure and ring structure and its relationship with oil and gas discuss in the western part of the Xuefeng Mountains

作　　者：张景华[1] 欧阳渊[1] 张建龙[1] 刘小霞 ZHANG Jing-hua;OUYANG Yuan;ZHANG Jian-long;LIU Xiao-xia(Chengdu Center of China Geological Survey,Chengdu 610081,China)

机构地区：[1]中国地质调查局成都地质调查中心,成都610081

出　　处：《华北地质》2021年第1期33-38,共6页North China Geology

基　　金：中国地质调查局项目“中上扬子海相含油气盆地分析与成藏条件综合调查评价(1212010733505)”;中国地质调查局项目“雪峰山西侧地区海相油气地质调查(1212010782003)”。

摘　　要：利用ETM图像,对雪峰山西侧地区进行线性构造和环状构造解译,编制遥感解译图。经分析认为,雪峰山西侧地区线性构造可分为三级,线性构造展布具有明显的方向性,在空间分布上,具有较明显的地域性和不均匀性,环状构造按其成因可以分为岩浆活动成因、构造成因和地学成因不明三大类。通过对雪峰山西侧地区的线性构造和环状构造分布特点进行研究,认为利川-恩施、武隆-道真和金沙-仁怀三个地区对油气保存比较有利,可能是有利油气远景区。Using ETM image,interpreted linear structure and ring structure from ETM image and compiled the interpretation map of linear structure and ring structure in the western part of the Xuefeng Mountains.The analysis thinks,in the western part of the Xuefeng Mountains,the linear structure can be divided into three grades,linear structure extension has obvious direction,and has obvious regional and nonuniform in the spatial distribution,ring structure can be divided into three types according to their causes,magma activity causes ring structure,geological structures causes ring structure and unknown causes ring structure.Research by the distribution characteristics of linear structure and ring structure in the western part of the Xuefeng Mountains,the preliminary view that Lichuan-Enshi,Wulong-Daozhen and Jinsha-Renhuai three areas more favorable for oil and gas preservation,may be conducive to the oil and gas prospect regions.

关 键 词：线性构造 环状构造 油气 关系 雪峰山 

分 类 号：P618.13[天文地球—矿床学]