摘要
基于二维地震、钻孔揭露及测试资料,结合区域构造背景,分析认为三李深部勘查区滑动构造面行迹为宽缓的倒"抛物线"型展布。研究表明:因滑动构造的挤压、揉搓作用使二_1煤层原始结构遭到破坏,形成了碎粒状、鳞片状等构造煤;煤层厚度及煤质也发生了较大变化,厚煤带一般分布在煤层埋深的浅部或无煤(区)带的前缘地段,薄煤带和无煤(区)带则分布在中部地段;位于地堑之内的瓦斯含量较高(58.15 m^3/t)。
Based on data from 2D seismic prospecting, drilling and testing, combined with structural setting have analyzed broad and gentle inverted ＂parabola＂ extending of the gliding tectonic surface trace in deep part Sanli coalmine. The study has shown that because of compression, kneading actions from gliding tectonics made original structure of coal Ⅱ1 destructed and formed fragmentary, scaly tectonoclastic coal; coal thickness and coal quality also have varied greatly. Thick coal belt is generally distributed in coal buried shallow part or coal barren （zone） front sector; thin coal belt and coal barren （zone） in middle sector; while coals in graben have higher gas content （58.15m3/t）, thus the one reason of irregularly distributed gas content in study area.
作者
聂怀耀
赵琳颖
聂艳敏
Nie Huaiyao Zhao Linying Nie Yanmin(The Second Geology and Mineral Resources Surveying Institute, Henan Geology and Mineral Resources Exploration and Exploitation Bureau, Zhengzhou, Henan 450001)
出处
《中国煤炭地质》
2017年第6期1-6,31,共7页
Coal Geology of China
基金
2008年度中央地质勘查基金项目([2008]032号)
关键词
滑动构造
二1煤层
瓦斯特征
三李深部
gliding tectonics
coalⅡ1
gas features
deep part Sanli coalmine
