| 重庆永荣煤田晚三叠世须家河组沉积体系研究 |
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| 引用本文： | 高彩霞,高彩红,李英娇,闫晗,邵龙义.重庆永荣煤田晚三叠世须家河组沉积体系研究[J].中国煤炭地质,2013(11):6-10. |
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| 作者姓名： | 高彩霞 高彩红 李英娇 闫晗 邵龙义 |
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| 作者单位： | [1]中国矿业大学煤炭资源与安全国家重点实验室及地球科学与测绘工程学院,北京100083 [2]外生成矿与矿山环境重庆市重点实验室,重庆地质矿产研究院,重庆400042 [3]煤炭资源与安全开采国家重点实验室重庆研究中心,重庆400042 |
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| 摘 要： | 永荣煤田上三叠统须家河组可分七段，其中须一、须三、须五、须七段为含煤泥岩段，主要为滨岸-三角洲沉积，须二、须四、须六段为砂岩段，主要为河道沉积。在区内钻井剖面及露头剖面沉积相分析及岩相类型的归纳总结基础上，并结合剖面结构和区域资料的分析，将研究区须家河组划分为3种沉积体系7种沉积相类型，自下而上主要沉积了-套湖滨-三角洲-河流冲积平原的沉积体系，在三角洲问湾与滨岸沼泽煤层发育较厚。
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| 关 键 词： | 永荣煤田 须家河组 沉积体系 |
Late Triassic Xujiahe Formation Sedimentary System in Yongrong Coalfield,Chongqing |
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| Gao Caixia,＇,＇,Gao Caihong,Li Yingjia,Yan Han and Shao Longyi.Late Triassic Xujiahe Formation Sedimentary System in Yongrong Coalfield,Chongqing[J].Coal Geology of China,2013(11):6-10. |
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| Authors: | Gao Caixia ＇ ＇ Gao Caihong Li Yingjia Yan Han and Shao Longyi |
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| Institution: | 1. State Key Laboratol7 of Coal Resources and Safe Mining, School of Geosciences and Surveying Engineering, CUMTB, Beijing 100083; 2. Chongqing Key Laboratory of Exogenic Mineralization and Mine Environment, Chongqing Institute of Geology and Mineral Resources, Chongqing 400042; 3. Chongqing Research Center of State Key Laboratory of Coal Resources and Safe Mining, Chongqing 400042) |
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| Abstract: | The upper Triassic Xujiahe Formation in Yongrong coalfield can be divided into seven members, in which, the first, third, fifth, seventh are coal-bearing mudstone members, mainly littoral--deltaic sediments; while the second, fourth, sixth are sandstone mem- bers, mainly channel sediments. Based on borehole and outcrop section sedimentary facies analyses and lithofacies type summarization, combined with section structure and regional data analyses, divided Xujiahe Formation in the area into 3 sedimentary systems and 7 sed- imentary facies types, from bottom to top mainly deposited a set of lake shore--delta--fluvial plain sedimentary system, and rather thick coal seams have been developed in delta interdistributory bay and littoral bogs. |
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| Keywords: | Yongrong coalfield Xujiahe Formation sedimentary system |
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