永夏煤田断块运动与构造特征的形成  

The fault block movements and the formation of the structural features in Yongxia coalfield

作　　者：王昆[1] 许亚坤[1] 方忆刚[1] 

机构地区：[1]河南省地质矿产勘查开发局第四地质矿产调查院,河南省商丘市476000

出　　处：《中国煤炭》2015年第6期44-48,共5页China Coal

基　　金：河南省国土资源厅2011年度"两权价款"地质科研科技攻关项目(2011-622-10)

摘　　要：从聚煤期构造的活动特点出发,结合河南省东部永夏煤田的主要构造特征,初步探讨了区内的断块运动,指出研究区是基底断块控制盖层构造形态的典型例子,区内普遍存在"反相"褶皱是由于地史时期永夏煤田各断块的相对升降运动在发生着反复变化。由于基底断裂及石炭二叠纪沉积期同沉积断裂的存在,再加上燕山运动及其以后的构造应力场,共同导致了永夏煤田现今构造形迹的形成。Through the analysis of the activity characteristics of structures in coal forming period, combined the main tectonic characteristics of Yongxia coalfield in east Henan, the author discussed preliminarily the fault block movements in the region, and pointed out the research area was a typical example that basement fault block controlled the structural configuration of sedi- mentary cover. The reverse folds exited universally was caused by the repeating changes of rela- tive heaving motion of fault block in Yongxia coalfield in geological time. The basement rift, syndepositional fault in the depositional stage of the Permo-carboniferous, Yanshan movement and tectonic stress field later leaded jointly to the formation of current structural features in Yongxia coalfield.

关 键 词：永夏煤田 断块运动 “反相”褶皱 构造特征 

分 类 号：P618.117[天文地球—矿床学]