| 重庆市晚二叠世含煤地层聚煤特征 |
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| 引用本文： | 向晓军,程军,蒙丽,李长林,高彩霞,何权.重庆市晚二叠世含煤地层聚煤特征[J].中国煤炭地质,2011(8):38-42. |
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| 作者姓名： | 向晓军 程军 蒙丽 李长林 高彩霞 何权 |
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| 作者单位： | 重庆地质矿产研究院; |
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| 基金项目： | 中国地质调查局地质大调查项目(编号:1212010881630) |
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| 摘 要： | 晚二叠世初期上扬子盆地西部康滇古陆的隆升,是形成其东侧区域西高东低构造格局的首要因素,并控制了各期由陆到海沉积相带与富煤带随海侵向西超覆的抬升迁移。重庆市西部地区在龙潭期位于扬子盆地海陆过渡相区的东部,区内发育海陆过渡沉积相区-海湾潮坪沉积体系与浅海相沉积区,海湾潮坪沉积体系是本区主要聚煤场所。从层序地层分析,将二叠系上统划分为2个三级层序,其中层序1发育完整,主要煤层C25煤形成于海侵域之海侵初期,C18＋19煤形成于高位域内次级层序的海侵期。
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| 关 键 词： | 构造格局 海湾-潮坪 层序地层 晚二叠世 重庆市 |
Late Permian Coal-bearing Strata Coal Accumulation Features in Chongqing Municipality |
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| Xiang Xiaojun,Cheng Jun,Meng Li,Li Changlin,Gao Caixia , He Quan.Late Permian Coal-bearing Strata Coal Accumulation Features in Chongqing Municipality[J].Coal Geology of China,2011(8):38-42. |
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| Authors: | Xiang Xiaojun Cheng Jun Meng Li Li Changlin Gao Caixia He Quan |
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| Institution: | Xiang Xiaojun,Cheng Jun,Meng Li,Li Changlin,Gao Caixia and He Quan(Chongqing Institute of Geology and Mineral Resources,Chongqing 400042) |
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| Abstract: | The uplift of the Xikang-Yunnan old land in the upper Yangtze Basin during the early Late Permian Epoch,is the principal factor in the formation of high east and low west tectonic framework of the region on its east side,and controlled each stage sedimentary facies belts from terrestrial to marine and overlapping rising migration of coal rich zones along with the transgression westward.The western Chongqing region is situated in the eastern part of Yangtze Basin marine-terrestrial transitional facies belt d... |
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| Keywords: | tectonic framework embayment-tidal flat sequence stratigraphy Late Permian Epoch Chongqing Municipality |
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