大别山北麓高煤级煤显微裂隙分布特征  

Distribution characteristics of micro-fracture of high rank coals in northern foot of Dabie Mountains

作　　者：陈延芳[1] 曹代勇[1] 李小明[1] 

机构地区：[1]中国矿业大学煤炭资源与安全开采国家重点实验室,北京100083

出　　处：《黑龙江科技学院学报》2007年第2期165-168,共4页Journal of Heilongjiang Institute of Science and Technology

基　　金：国家自然科学基金(40372075)

摘　　要：通过煤岩学方法研究大别山北麓杨山煤系高煤级煤中的显微裂隙,探讨了不同变形-变质类型煤的裂隙分布特征及其影响因素。大别山地区特殊的地质背景,形成了各种级别的构造裂隙,尤其是受到多期构造作用和岩浆活动的影响,使得高煤级煤中显微裂隙的分布及演化具有特殊性和复杂性。The paper introduces the use of coal petrology method to study micro-fractures of high rank coals of the Carboniferous period coal produced in the northern foreland basin of Dabie Mountain, and to explore the distribution characteristics of micro-fracture in different deformational-metamorphic types coals and the influence factors. The particularity of the geological background results in several scales of structural fracture, especially the complexity and particularity of micro-fracture distribution and evolution, as influenced by the multi-stage tectonic deformations and magmatic activities.

关 键 词：杨山煤系 高煤级煤 显微裂隙 大别山 

分 类 号：P618.11[天文地球—矿床学]