准噶尔盆地及外围盆地的侏罗系与盆地基底问题

新疆石油地质 ›› 1994, Vol. 15 ›› Issue (4): 298-300.

准噶尔盆地及外围盆地的侏罗系与盆地基底问题

张传淦

教授级高工石油地质中国石油天然气总公司石油勘探开发科学研究院地质所北京 100083

收稿日期:1994-08-22 发布日期:2020-08-27

ON THE JURASSIC AND BASEmENT OF JUNGGAR BASIN AND ITS PERIPHERAL BASIN

Zhang Chuangan

Professor of Enginecring. Petroleum Geology. Scientific Research institute of Pelroleum Exploration ard Development. CNPC. Beijing 100083

Received:1994-08-22 Published:2020-08-27

摘要/Abstract

摘要： 准噶尔盆地及其15个外围盆地的侏罗系是一套具有一定含油气远景的层系。中下侏罗统为烃源岩和储层，上统为储层及区域盖层。根据基底性质可将它们分为以前震旦系老克拉通为基底的中间地块盆地和以海西期新克拉通为基底的山间盆地两大类。前者多为继承性盆地，含油层系多、远景好，后者多为残余盆地，含油气情况复杂。准噶尔盆地下石炭统均为未变质的海陆交互相沉积，泥盆系除个别地区外，也均未变质。因此这套地层应属盆地盖层，而不是盆地的基底部分。

关键词: 准噶尔盆地及外围盆地, 侏罗系, 盆地类型, 含油远景, 基底性质

Abstract: The Jurassic in Junggar basin and its fifeen peripheral basins is a conbination of sequence with fair hydrocarbon potential: middle and Lower Jurassic are considered to be the source rock and resetvoir. and Upper Jurassic as the reservoir and regional caprock. According to the nature of basement. these basins can be divided into two categories; intermediate massif basin. with old craton of the Presinian period as basement, and intramontane basin. with new craton of the Hercynian period as basement. The fo:mer are nostly an inherited basin. with various oil-bearing sequences and betler oil potential; and the latter are mostly a residual basin. with complex hydtocarbon condition. Lower Catboniferous in Junggar basin is onmetamorphic paralic facies. and Devorian is also nonmetamotphic except in verv few aleas. As a results. this sequence should be considered as the caprock rather than as the basement.

Key words: Junggar basin and its peripheral basin, Jurassic, Types of basin, Hydrocarbon potential, Nature of basement

张传淦. 准噶尔盆地及外围盆地的侏罗系与盆地基底问题[J]. 新疆石油地质, 1994, 15(4): 298-300.

Zhang Chuangan. ON THE JURASSIC AND BASEmENT OF JUNGGAR BASIN AND ITS PERIPHERAL BASIN[J]. Xinjiang Petroleum Geology, 1994, 15(4): 298-300.

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