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喀喇昆仑西部龙山组沉积环境及构造背景 预览 被引量:4

Sedimentary environment and structural setting of Middle-Lower Jurassic Longshan Formation in the west of Kunlun Mountains of Gela, China
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摘要 出露于新疆喀喇昆仑西部阿格勒达板沟伊力克附近的侏罗系龙山组,具丰富的沉积构造及清晰的沉积序列,是研究侏罗系沉积环境及构造演化进程的良好载体。通过对其岩石学、沉积学特征的研究,显示喀喇昆仑西部龙山组为海陆过渡环境的混合潮坪沉积产物;通过碎屑矿物的物源分析,揭示其物源来自再旋回的造山带;区域构造背景研究显示在早一中侏罗世,本区开始了由海向陆的转换进程。 The Jurassic Longshan Formation outcropping in the Agelendaba groove in the western Kunlun Mountains of Gela in Xinjiang is rich in sedimentary structures and clear sedimentary sequences. It is a good carrier to study the Jurassic sedimentary environment and tectonic evolution process. The research on the petrology and sedimentology characteristics shows that there are the mixed tidal flat deposition products in Longshan Formation. The analysis of the paralic environment detrital minerals provenance reveals that the sediments comes from the orogenic belts of the recyclings of and the study of the regional tectonic background show indicates that this area began the process of conversion from sea to land in the Early-Middle Jurassic.
作者 李振兴 侯明才 王约 张杰 康孔跃 杜涛 杨伟 史俊波 LI Zhen-xing, HOU Ming-cai, WANG Yue , ZHANG Jie, KANG Kong-yue, DU Tao, YANG Wei, SHI Jun-bo(l. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059, China; 2. The 282 Geological Brigade of the Nuclear Industry in Sichuan, Deyang 618000, China; 3. The College of Resources and Environmental Engineering, Guizhou University, Guiyang 550000, China)
出处 《成都理工大学学报:自然科学版》 CAS CSCD 北大核心 2013年第2期161-169,共9页 Journal of Chengdu University of Technology: Sci & Technol Ed
基金 中国地质调查局区域地质调查项目
关键词 侏罗系 龙山组 潮坪 沉积环境 构造背景 Jurassic Longshan Formation tidal flat sedimentary environment tectonic setting
作者简介 李振兴(1984-),男,硕士研究生,研究方向:储层沉积学,E-mail:450941055@qq.com
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