| 川西前陆盆地晚三叠世早期物源与龙门山的有限隆升——碎屑锆石U-Pb年代学研究 |
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| 引用本文： | 陈杨,刘树根,李智武,邓宾,曾祥亮,林杰.川西前陆盆地晚三叠世早期物源与龙门山的有限隆升——碎屑锆石U-Pb年代学研究[J].大地构造与成矿学,2011,35(2):315-323. |
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| 作者姓名： | 陈杨 刘树根 李智武 邓宾 曾祥亮 林杰 |
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| 作者单位： | 成都理工大学油气藏地质及开发工程国家重点实验室; |
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| 基金项目： | 中国石化海相前瞻性项目“华南古板块地裂运动与海相油气前景(PH08001)”; 国家自然科学基金资助项目(40802049); 大陆动力学国家重点实验室开放基金项目(09LCD07) |
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| 摘 要： | 四川盆地西部(川西)前陆盆地晚三叠世物源区过去常认为主要为其西部的龙门山和松潘-甘孜褶皱带,仅少数学者认为主要物源区位于东部和北部.本文利用碎屑锆石LA-ICP-MS U-Pb法对川西上三叠统小塘子组(T3t)不同地区的4个样品进行了研究,发现川西上三叠统小塘子组碎屑锆石年龄主要集中在2550～2400Ma,1900～...
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| 关 键 词： | 碎屑锫石 LA-ICP-MS U-Pb 物源 小塘子组 晚三叠世 龙门山 四川盆地西部 |
LA-ICP-MS Detrital Zircon U-Pb Geochronology Approaches to the Sediment Provenance of the Western Sichuan Foreland Basin and Limited Uplift of the Longmen Mountains During the Early Stage of Late Triassic |
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| CHEN Yang,LIU Shugen,LI Zhiwu,DENG Bin,ZENG Xiangliang,LIN Jie.LA-ICP-MS Detrital Zircon U-Pb Geochronology Approaches to the Sediment Provenance of the Western Sichuan Foreland Basin and Limited Uplift of the Longmen Mountains During the Early Stage of Late Triassic[J].Geotectonica et Metallogenia,2011,35(2):315-323. |
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| Authors: | CHEN Yang LIU Shugen LI Zhiwu DENG Bin ZENG Xiangliang LIN Jie |
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| Institution: | CHEN Yang,LIU Shugen,LI Zhiwu,DENG Bin,ZENG Xiangliang and LIN Jie(State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Chengdu University of Technology,Chengdu 610059,Sichuan,China) |
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| Abstract: | The provenance of the early upper Triassic sediments in the Western Sichuan Foreland Basin was often considered to be the Longmen Mountains based on the analysis of gravel imbrications. However,gravel imbrications are not reliable without other supporting evidence such as the foreset beddings,crescent type cross-beddings and the distribution of detrital zircon ages. This paper discussed the early Late Triassic sediment provenance of the Western Sichuan Foreland Basin based on the U-Pb dating results of detr... |
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| Keywords: | detrital zircon LA-ICP-MS U-Pb provenance Xiaotangzi Formation Late Triassic Longmen Mountains Western Sichuan Basin |
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