| 甘肃省北山地区公婆泉勘查区老树窝群聚煤沉积环境及含煤性规律 |
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| 引用本文： | 马小琴.甘肃省北山地区公婆泉勘查区老树窝群聚煤沉积环境及含煤性规律[J].中州煤炭,2018,0(9):94-98. |
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| 作者姓名： | 马小琴 |
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| 作者单位： | （甘肃煤田地质局 一四九队，甘肃 兰州 730020） |
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| 摘 要： | 综合利用钻井、岩心及地震等资料，结合沉积学及层序地层学相关方法和理论，对公婆泉勘查区老树窝群聚煤沉积环境及含煤性进行研究。公婆泉勘查区老树窝群煤层主要见于湖泊三角洲相的粉砂岩、泥炭沼泽相的炭质泥岩，位于老树窝群的下岩组。聚煤沉积环境方面，考虑到古构造的影响，总结出公婆泉勘查区的聚煤模式:泥炭沼泽相为主要的聚煤环境。从含煤性看，勘查区含煤性沿东西方向西部较好、东部变差，南北方向中部较好，两端变差。
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| 关 键 词： | 公婆泉勘查区 老树窝群 聚煤沉积环境 含煤性 |
Laws of coal accumulation sedimentary environment and coal bearing property of Lashuwo Group in Gongpoquan exploration area of Beishan area in Gansu Province |
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| Ma Xiaoqin. Laws of coal accumulation sedimentary environment and coal bearing property of Lashuwo Group in Gongpoquan exploration area of Beishan area in Gansu Province[J].Zhongzhou Coal,2018,0(9):94-98. |
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| Authors: | Ma Xiaoqin |
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| Affiliation: | （149 Brigade of Gansu Bureau of Coal Geology，Lanzhou 730020，China） |
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| Abstract: | Based on drilling，core and seismic data，and combined with the related methods and theories of sedimentology and sequence stratigraphy，the coal-accumulating sedimentary environment and coal-bearing property of Laoshuwo Group in Gongpoquan exploration area were studied.Coal seams of Gongpoquan exploration area are mainly found in the lake delta facies sandstone，carbonaceous mudstone of the peat bog，which located in the Lower rock formation of Laoshuwo Group.For the coal depositional environment，considering the influence of paleostructure，the author summarized the coal-accumulation model of Gongpoquan exploration area:peat swampfacies is the main coal-accumulating environment.Along the west and east，the coal bearing property is better in west and worse in the east；in the direction of north to south，the coal bearing property is better in the middle part，and worse in the north and south. |
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| Keywords: | ,Gongpoquan exploration area, Laoshuwo Group, coal accumulation sedimentary environment, coal-bearing property |
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