新疆准噶尔含煤盆地基本构造格架与认识
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Fundamental Structural Framwork and Cognition of Junggar Coal Basin, Xinjiang
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    摘要:

    基于盆地煤田构造与赋煤特征的综合分析,辅以准噶尔盆地西北、东北、东部和南部典型构造剖面的解析分析,厘清了准噶尔盆地的基本构造形态,呈现出如下规律:一是准噶尔现今构造格局于喜山运动中晚期定格,长期处于近南北向构造挤压应力场环境,总体具隆坳相间、南北分带、东西分块的构造格局;二是盆缘四周构造变形强烈,向盆内逐渐减弱且层次变浅,整体呈“环带”构造,反映出准噶尔盆地主体受控于周缘造山带和自盆缘向盆内挤压应力场的动力学、运动学和几何学特征;三是准噶尔盆地大规模聚煤作用是在早中侏罗世短暂的引张或弱挤压的区域构造应力场背景下完成的;四是准噶尔盆地周缘推覆带为可能的煤炭资源勘查开发远景区。

    Abstract:

    Based on comprehensive analysis of the structure and coal hosting features in coal fields, in addition analysis of the typical structural profiles in the northwest、northeast、east and south of Junggar Basin, ascertained the basic structural pattern as follows: Firstly, the existing tectonic framework of Junggar Basin was finalized during the middle to late period of Himalayan movement. Chronically in the nealy south north compress stress field, showing alternating depressions and uplifts、belts in S N and blocks in E W in general; Secondly, intense structral deformation around the basin margin but gradually weak and shallow in the center, showing concentric ring shape structure on the whole, revealing the dynamical、kinematical and geometrical features controlled by orogenic belts around the basin and stress field from edge to inside; Thirdly, the large scale coal accumulation occurred in the extension/weak compress tectonic stress field during early middle Jurassic epoch; Fourthly, the thrust belts around the basin maybe the potential prospective areas for coal resource exploration and exploitation.

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王佟,冯帆,江涛,王庆伟,夏玉成,韦波,杨曙光.2016.新疆准噶尔含煤盆地基本构造格架与认识[J].地质学报,90(4):628-638.
WANG Tong, FENG Fan, JIANG Tao, WANG Qingwei, XIA Yucheng, WEI Bo, YANG Shuguang.2016. Fundamental Structural Framwork and Cognition of Junggar Coal Basin, Xinjiang[J]. Acta Geologica Sinica,90(4):628-638.

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  • 在线发布日期: 2016-04-26
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