中国煤炭
中國煤炭
중국매탄
CHINA COAL
2015年
6期
44-48
,共5页
永夏煤田%断块运动%“反相”褶皱%构造特征
永夏煤田%斷塊運動%“反相”褶皺%構造特徵
영하매전%단괴운동%“반상”습추%구조특정
Yongxia coalfield%fault block movement%inverse folds%structural feature
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。
從聚煤期構造的活動特點齣髮,結閤河南省東部永夏煤田的主要構造特徵,初步探討瞭區內的斷塊運動,指齣研究區是基底斷塊控製蓋層構造形態的典型例子,區內普遍存在“反相”褶皺是由于地史時期永夏煤田各斷塊的相對升降運動在髮生著反複變化。由于基底斷裂及石炭二疊紀沉積期同沉積斷裂的存在,再加上燕山運動及其以後的構造應力場,共同導緻瞭永夏煤田現今構造形跡的形成。
종취매기구조적활동특점출발,결합하남성동부영하매전적주요구조특정,초보탐토료구내적단괴운동,지출연구구시기저단괴공제개층구조형태적전형례자,구내보편존재“반상”습추시유우지사시기영하매전각단괴적상대승강운동재발생착반복변화。유우기저단렬급석탄이첩기침적기동침적단렬적존재,재가상연산운동급기이후적구조응력장,공동도치료영하매전현금구조형적적형성。
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.