贵州瓮安县玉山煤矿含煤地层及沉积环境分析
|
摘要
结合对钻孔资料的分析,运用沉积学和煤田地质学的有关理论方法,对贵州瓮安县玉山煤矿的含煤地层特征、可采煤层的煤层特征及其沉积环境进行详细的分析。分析结果表明:玉山煤矿含煤地层主要是二叠纪上统吴家坪组,吴家坪组主要发育20煤层、35煤层该两组可采煤层。可采煤层的厚度变化较大,无明显规律且可采边界不规则,煤类、煤质变化较大。吴家坪组发育了一套碳酸盐岩和陆源碎屑岩的混合沉积,主要岩性为石灰岩、粉砂岩及煤层组成,主要沉积相为浅海相、泥炭沼泽相及分流间湾相。含煤地层沉积相环境稳定,变化小,规律性明显。
Through analysis of drilling hole data,and applying the theoretical methods of sedimentology and coal geology,this paper analyzed the coal-bearing strata characteristics and sedimentary environment of Yushan coal mine in Weng'an,Guizhou.The results showed that:coal—bearing formation of Yushan coal mine is Wujiaping formation of upper Permian,there are two main minable seams developed in Wujiaping formation which is coal seam 20 and coal seam 35.The thickness of minable seam varies a lot,there is no obvious rule and the minable boundary is irregular,Wujiaping formation mainly develops the mixture of carbonate rock and terrigenous clastic rock,the main lithology are limestone,siltstone and coal seam,the main sedimentary facies of Wujiaping formation are neritic facies,moss—land and so on;sedimentary environment is stable,obviously regular and with small changes.
Through analysis of drilling hole data,and applying the theoretical methods of sedimentology and coal geology,this paper analyzed the coal-bearing strata characteristics and sedimentary environment of Yushan coal mine in Weng'an,Guizhou.The results showed that:coal—bearing formation of Yushan coal mine is Wujiaping formation of upper Permian,there are two main minable seams developed in Wujiaping formation which is coal seam 20 and coal seam 35.The thickness of minable seam varies a lot,there is no obvious rule and the minable boundary is irregular,Wujiaping formation mainly develops the mixture of carbonate rock and terrigenous clastic rock,the main lithology are limestone,siltstone and coal seam,the main sedimentary facies of Wujiaping formation are neritic facies,moss—land and so on;sedimentary environment is stable,obviously regular and with small changes.
引文
[1]陈松,桂和荣,马艳平,等.平顶山矿区含煤地层沉积环境及聚煤特征[J].煤炭工程,2010,6:73-75.
[2]王艳梅,邓霜岭,黄元清,等.含煤层系测井曲线特征及其沉积环境[J].物探与化探,2009,33(3):290-293.
[3]叶黎明,齐天俊,彭海燕.鄂尔多斯盆地东部山西组海相沉积环境分析[J].沉积学报,2008,26(2).
[4]胡广成,鲍志东,张震,等.贵州桐梓松坎剖面中、下三叠统岩石学特征及沉积环境分析[J].古地理学报,2009,11(2):195-204.
[5]熊孟辉,秦勇,易同生.贵州晚二叠世含煤地层沉积格局及其构造控制[J].中国矿业大学学报,2006,35(6):778-782.
[6]吕凡家,徐胜平.海孜煤矿二叠系含煤地层沉积环境分析[J].淮南职业技术学院学报,2002,2(3):52-54.
[7]刘文中,徐龙.淮北闸河矿区二叠系含煤地层沉积环境分析[J].中国煤田地质,1996,8(3):19-21.
[8]赵洪刚,梁吉坡,陈晓燕.临清坳陷晚古生代沉积环境及演化分析[J].山东国土资源,2012,28(3):1-4.
[9]朱建刚,陈荔荔,王永丽,等.凤阳山矿区太原组和山西组煤质特征分析[J].河北工程大学学报,2014,31(2):75-78.
[10]杨恩秀,张春池,宁振国,等.山东石炭二叠纪地层沉积环境分析[J].山东国土资源,2013,29(12):1-10.
[11]程伟,杨瑞东,崔玉朝,等.贵州毕节地区晚二叠世煤质特征及其成煤环境意义[J].地质学报,2013,87(11):1763-1777.
[12]Guijian Liu,Liugen Zheng,Lianfen Gao,etc.The characterization of coal quality from the Jining coalfield[J].Energy[J].30(2005):1903-1914.
[2]王艳梅,邓霜岭,黄元清,等.含煤层系测井曲线特征及其沉积环境[J].物探与化探,2009,33(3):290-293.
[3]叶黎明,齐天俊,彭海燕.鄂尔多斯盆地东部山西组海相沉积环境分析[J].沉积学报,2008,26(2).
[4]胡广成,鲍志东,张震,等.贵州桐梓松坎剖面中、下三叠统岩石学特征及沉积环境分析[J].古地理学报,2009,11(2):195-204.
[5]熊孟辉,秦勇,易同生.贵州晚二叠世含煤地层沉积格局及其构造控制[J].中国矿业大学学报,2006,35(6):778-782.
[6]吕凡家,徐胜平.海孜煤矿二叠系含煤地层沉积环境分析[J].淮南职业技术学院学报,2002,2(3):52-54.
[7]刘文中,徐龙.淮北闸河矿区二叠系含煤地层沉积环境分析[J].中国煤田地质,1996,8(3):19-21.
[8]赵洪刚,梁吉坡,陈晓燕.临清坳陷晚古生代沉积环境及演化分析[J].山东国土资源,2012,28(3):1-4.
[9]朱建刚,陈荔荔,王永丽,等.凤阳山矿区太原组和山西组煤质特征分析[J].河北工程大学学报,2014,31(2):75-78.
[10]杨恩秀,张春池,宁振国,等.山东石炭二叠纪地层沉积环境分析[J].山东国土资源,2013,29(12):1-10.
[11]程伟,杨瑞东,崔玉朝,等.贵州毕节地区晚二叠世煤质特征及其成煤环境意义[J].地质学报,2013,87(11):1763-1777.
[12]Guijian Liu,Liugen Zheng,Lianfen Gao,etc.The characterization of coal quality from the Jining coalfield[J].Energy[J].30(2005):1903-1914.
目录