准噶尔盆地南缘古牧地背斜多期构造变形特征

发布时间：2018-01-29 05:30

本文关键词： 准噶尔盆地南缘博格达山古牧地背斜多期变形油气勘探　出处：《吉林大学学报(地球科学版)》2017年06期 　论文类型：期刊论文

【摘要】：古牧地背斜位于博格达山前阜康断裂带的北缘。为探讨博格达山隆升在沉积盆地内的构造响应特征,作者结合野外地表露头观测、地震反射特征和磷灰石裂变径迹分析,认为古牧地背斜垂向上可划分为深浅两大构造层:深层侏罗系西山窑组(J_2x)以下地层具有双重构造的特征,活动时间为150~130和100~80 Ma;浅层侏罗系西山窑组及以上地层具有断层突破型断层传播褶皱的特征,活动时间约为30 Ma。以上研究成果一方面反映出博格达山晚侏罗世以来多期构造活动的特点,另一方面反映古牧地背斜深层双重构造具有形成时间早、埋深相对浅的特点,是准噶尔盆地南缘有利的油气勘探领域。
[Abstract]:The paleopastoral anticline is located in the northern margin of the Fukang fault zone in front of the Bogda Mountains. In order to study the structural response characteristics of the uplift of the Bogda Mountains in the sedimentary basin, the authors combined with the outcrop observation in the field. The seismic reflection characteristics and apatite fission track analysis indicate that the anticline in paleopastoral area can be divided into two tectonic layers vertically: the deep Jurassic Xishanyao formation J2x has double structural characteristics. The duration of the activities was 150 Ma and 100 Ma; The shallow Jurassic Xishanyao formation and above have the characteristics of fault breakthrough fault propagation fold. The activity time is about 30 Ma.The results above reflect the characteristics of multiple tectonic activities since late Jurassic in Bogda Mountain on the one hand and the deep double structure of paleopastoral anticline on the other hand the formation time is early. The relatively shallow buried depth is a favorable oil and gas exploration field in the southern margin of Junggar Basin.
【作者单位】：中国地质大学(北京)能源学院;中国石油勘探开发研究院西北分院;中国石油油藏描述重点实验室;
【基金】：国家自然科学基金重点项目(40739906) 国家科技重大专项(2016ZX05003002)~~
【分类号】：P618.13
【正文快照】： Multiple Phase Deformation of Gumudi Anticlineat South Margin of Junggar BasinMa Delong1,2,3,He Dengfa1,Wei Dongtao2,3,Wang Yanjun2,Wei Cairu20引言阜康断裂带位于博格达山与准噶尔盆地的接合处,记录了博格达山隆升过程的构造、沉积响应特征,是研究博格达山演化历

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