河南临汝煤田朝川矿区煤岩层对比与沉积环境分析  

Comparison of coal and rock layers in Chaochuan mining area of Henan Linru Coalfield and analysis of sedimentary environment

作　　者：赵振 杨治敏 张义函 刘守川 Zhao Zhen;Yang Zhimin;Zhang Yihan;Liu Shouchuan(Henan Academy of Geoloy,Zhengzhou 450016,China;Fengda Coal Mine of Ruzhou Shenhuo Shuntong Mining Co.,Ltd.,Pingdingshan 467000,China;Henan Geology Mineral College,Zhengzhou 451464,China)

机构地区：[1]河南省地质研究院,河南郑州450016 [2]汝州市神火顺通矿业有限公司丰达煤矿,河南平顶山467000 [3]河南地矿职业学院,河南郑州451464

出　　处：《能源与环保》2024年第9期149-153,160,共6页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：2021年度河南省财政地质勘查新立项目(豫自然资发[2021]16号-10)。

摘　　要：临汝煤田朝川矿区位于河南省西南部,朝川矿区处于秦岭纬向和大别山北西向构造体系的复合部位,石炭—二叠系地层中发育多层煤层。煤系地层赋存受后期构造影响较大,造成区内煤岩层对比难度变大,一定程度上影响了朝川矿区煤炭资源的勘查和开发。在野外岩心进行编录的基础上,采用对比标志层、层间距、煤岩层组合特征、物性特征等方法,进行煤岩层对比,进而研究其沉积环境。各煤层的标志层、物性特征等差异明显,太原组是以一套浅海相碳酸盐岩为主、夹陆源碎屑岩和煤为特色的海陆交互相混合沉积,山西组是以河流作用为主的陆源碎屑沉积。研究结果表明,朝川矿区煤岩层对比结果可靠,沉积环境分析结果符合实际,对朝川矿区地质勘查和煤矿生产有借鉴意义。Chaochuan mining area of Linru Coalfield is located in the southwest of Henan Province.Chaochuan mining area is located in the composite part of the Qinling latitude and the north westward structural system of Dabie Mountains,and multilayer coal seams are developed in the Cariferous-Permian strata.The occurrence of coal system strata is greatly influenced by the later structure,which increases the difficulty of comparison of coal rock layers in the area,and affects the exploration and development of coal resources in Chaochuan mining area to a certain extent.On the basis of the compilation of the field core in this study,the methods of contrast marking layers,layer spacing,coal rock layer combination characteristics and physical characteristics were adopted to compare the coal rock layer,and then study its sedimentary environment.The research results show that there are obvious differences in the marking layers and physical characteristics of each coal seam.The Taiyuan Formation is a marine continental mixed sediment characterized by a set of shallow marine carbonate rocks,interbedded with terrestrial clastic rocks and coal,while the Shanxi Formation is a terrestrial clastic sediment dominated by river action.The research results show that the comparison results of coal rock layers in Chaochuan mining area are reliable,and the results of sedimentary environment analysis are in line with the reality,and have reference significance for geological exploration and coal mine production in Chaochuan mining area.

关 键 词：临汝煤田 煤岩层对比 沉积环境 标志层对比 物性特征 

分 类 号：TD163.1[矿业工程—矿山地质测量]