| 青海东昆仑埃坑德勒斯特勘查区含煤岩系沉积环境分析 |
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| 引用本文： | 李攀峰,马国强,王福国.青海东昆仑埃坑德勒斯特勘查区含煤岩系沉积环境分析[J].中国煤炭地质,2013(12):27-32. |
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| 作者姓名： | 李攀峰 马国强 王福国 |
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| 作者单位： | 中煤地质总公司,北京100073 |
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| 基金项目： | 中国地质调查局基金项目：青海省东昆仑中部煤炭资源远景调查（资【2013】01-026-020号） |
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| 摘 要： | 青海东昆仑埃坑德勒斯特勘查区位于东昆中与东昆南断裂之间，属于东昆仑中部阿拉克湖断陷带。根据野外地质调查及室内综合分析，得出本区含煤地层主要为晚三叠世八宝山组和早侏罗世羊曲组，其中八宝山组属水面上升一下降期沉积体系，发育一套曲流河一湖相三角洲一曲流河含煤沉积序列，羊曲组发育了一套河流一湖沼相的碎屑岩夹炭质页岩及煤层的沉积序列；羊曲组成煤条件优于八宝山组。该研究对埃坑德勒斯特地区的找煤工作具有指导意义。
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| 关 键 词： | 八宝山组 羊曲组 沉积环境 埃坑德勒斯特勘查区 东昆仑 |
Coal-bearing Strata Sedimentary Environment Analysis in Ekendrest Exploration Area,Eastern Kunlun,Qinghai |
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| Li Panfeng,Ma Guoqiang and Wang Fuguo.Coal-bearing Strata Sedimentary Environment Analysis in Ekendrest Exploration Area,Eastern Kunlun,Qinghai[J].Coal Geology of China,2013(12):27-32. |
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| Authors: | Li Panfeng Ma Guoqiang and Wang Fuguo |
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| Institution: | (China Coal Geological Engineering Corporation, Beijing 100073) |
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| Abstract: | The Ekendrest Exploration Area, Eastern Kunlun, Qinghai is situated between the eastern Kunlun central and south faults, a part of LakeArak fault depression zone. Based on field geological investigation and indoor comprehensive analysis, considered that the coal-bearing strata in the area are mainly late Triassic Babaoshan Formation and early Jurassic Yangqu Formation. In which, Ba- baoshan Formation belongs to water level rising--falling stage sedimentary system, developed a set of meandering river~-lake delta-- meandering river coal-bearing sedimentary sequence; Yangqu Formation developed a set of fluvial--lacustrine bog facies clastic rock intercalated with carbonaceous shale and coal seam sedimentary sequence; coal-forming condition of the later is better than the former. The research has guiding significance to coal prospecting in the Ekendrest area. |
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| Keywords: | Babaoshan Formation Yangqu Formation sedimentary environment Ekendrest exploration area eastern Kunlun |
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