| 辽河盆地东部凹陷沙三段煤种和煤级分布特征 |
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| 引用本文： | 王宇林,高玉娟,赵忠英,姜志刚.辽河盆地东部凹陷沙三段煤种和煤级分布特征[J].煤田地质与勘探,2007,35(2):14-16. |
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| 作者姓名： | 王宇林 高玉娟 赵忠英 姜志刚 |
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| 作者单位： | 辽宁工程技术大学资源与环境工程学院, 辽宁 阜新 123000 |
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| 摘 要： | 运用煤田地质学基本理论和煤的镜质组反射率值及工业分析等有关数据,确定了辽河盆地东部凹陷古近系沙三段含煤亚段的煤种主要为褐煤、长焰煤和气煤;进而阐述了该煤段垂向上煤级与埋深的变化规律性、不同赋煤区各煤级垂向界限的差异性。在平面上,长焰煤在东部凹陷的6个赋煤区均有分布,褐煤分布于东部凹陷西南端和中北部,气煤则集中分布于该凹陷的中南部。区域地温场和火山活动控制了煤级的空间分布。
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| 关 键 词： | 煤种 煤级 分布 特征 辽河盆地 |
| 文章编号： | 1001-1986(2007)02-0014-03 |
| 收稿时间： | 2006-08-10 |
| 修稿时间： | 2006年8月10日 |
Characters of coal classification and coal rank distribution in third member of Shahejie Formation in eastern depression of Liaohe basin |
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| WANG Yu-lin,GAO Yu-juan,ZHAO Zhong-ying,JIANG Zhi-gang.Characters of coal classification and coal rank distribution in third member of Shahejie Formation in eastern depression of Liaohe basin[J].Coal Geology & Exploration,2007,35(2):14-16. |
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| Authors: | WANG Yu-lin GAO Yu-juan ZHAO Zhong-ying JIANG Zhi-gang |
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| Institution: | College of Resource and Environment Engineering, Liaoning Technical University, Fuxin 123000, China |
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| Abstract: | Under general geological study of exploratory development of coalbed gas and underground gasification of coal bed in eastern depression of Liaohe basin,authors apply the basic principle of coal geology and the data of vitrinite reflectance and technical analysis of coal to ascertain that coal classification are dominantely the lignite,long-flame coal and gas coal of coal-bearing upper section of third member of Shahejie Formation.And then dissertate the variational regularity between coal rank and buried depth in vertical and otherness of vertical limit of coal rank in different coal-rich regions.The results show that the long-flame coal distributs in the six coal-rich regions,the lignite distributs in southwest and north central region and gas coal distributs in south central of eastern depression on plane.At last it is pointed out that the regional geothermal field and volcanic activity control the spatial distribution of coal rank. |
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| Keywords: | coal kind coal rank distribution character Liaohe basin |
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