塔西南山前构造特征及含油气前景  

THE CHARACTER AND HYDROCARBON POTENTIAL OF PIEDMONT STRUCTURES IN SOUTHWESTERN BASIN

作　　者：陈新安 张兴林[1] 屈秋平 周洪清 邱斌 彭琪宇 

机构地区：[1]新疆石油管理局塔西南勘探开发公司地质所,新疆泽普844804

出　　处：《新疆石油地质》1999年第6期468-472,共5页Xinjiang Petroleum Geology

摘　　要：塔西南山前构造具有东西分段南北分带的构造特征。由西向东分为依格孜牙、齐姆根、叶尔羌河-棋盘、柯克亚-曲吕西、玉力群-克里阳、桑株-杜瓦6个弧形构造段，由南向北分为杜瓦-桑林-克里阳-帕米尔、曲吕西-柯克亚-棋盘、苏勒阿孜-固满-依格孜牙、泽普-英吉沙4排褶皱-冲断构造带。各弧形构造段之间以走滑断裂、斜冲断裂、褶皱带为界，各段的构造样式不同；由南向北，4排褶皱-冲断构造的变形程度依次减弱，褶皱-冲断时代依次变新。在此基础上，对塔西南西南缘的含油气前景进行了分析。认为，依格致牙背斜带-达尔鼻状构造──齐姆根弧形三角带构造、棋盘鼻状构造-柯克亚背斜、甫沙背斜-玉力群-克里阳三角构造带为最有利的含油气区。The piedmont structures in southwest margin of Tarim basin are characterized by E-W segmentation and N-S belting. There are six arc-like structural belts from east to west including Yigeziya, Qimugen, Yarkant river-Qipan, Kekeya-Quluxi, Yuliqun-kiliyang, Sangzhu-Tuwa, in which strike-oblique thrust-fold belt is the boundary of each arc-like structure with different structural style, and four rows of fold-thrust structural belts from south to north including Tuwa-Sangzhu - kiliyang-Pamir, Quluxi - Kekeya- Qipan, Suleazi -Guman -Yigeziya, Zepu-Yengiar, in which deformation degrees are successively weak and the eras become young from south to north. Based on the analyses of hydrocarbon potential in southwest margin of Tarim basin, it is considered that Yigeziya anticline belt-Daer nose-like structure-Qimugen are-like triangular structure, Qipan nose-like structure-Kekeya anticline, Pusha anticline-Yuliqun - kiliyang triangular structure belt are the most favourable oil-bearing areas.

关 键 词：塔里木盆地 构造特征 油气远景 油气地质 

分 类 号：P618.130.2[天文地球—矿床学]