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山西霍西煤田白壁关井田构造研究

发表时间:2012-11-15  浏览量:1045  下载量:484
全部作者: 夏祥生,邓声阳,杨照方,宋进
作者单位: 攀钢集团矿业有限公司;云天化集团昭通矿业有限公司
摘 要: 分析白壁关井田构造的类型和空间分布规律,研究矿井构造的成因和构造应力场发展演化历史。区内构造主要方向有2组:1) 以压扭性NNE向走向构造为主,主要为断层和褶皱,二者走向一致;2) 在井田中南部有扫帚状组合的3条褶皱,褶部呈弧形,方向为NNW—EW. 在垂向上,通常是地堑、地垒、阶梯三者的组合。自晚古生代以来,该区受三期构造应力的影响:第一期(二叠纪~三叠纪),SN向挤压,造成区域的EW向的压性构造带及NNW的张性断裂;第二期(晚三叠纪~白垩纪),以NWW—SEE向挤压为主,略有左旋,形成了NNE向的左旋逆断层及褶皱;第三期(白垩纪),在右旋力偶作用下,把第二期形成的NNE向的左旋逆断层改变成了右旋正断层,并形成扫帚状组合的3条褶皱。
关 键 词: 地质学;矿井构造;组合特征;成因;白壁关井田
Title: Research on structure of Baibiguan well in Shanxi, Huoxi coal mine
Author: XIA Xiangsheng, DENG Shengyang, YANG Zhaofang, SONG Jin
Organization: Mining Corporation, Pangang Group Company Ltd.; Zhaotong Mining Corporation, Yuntianhua Group
Abstract: This paper studied Baibiguan Well structure type and spatial distribution rules, and the formation of coalmine structure and development history of structural stress field. There are two groups of coalmine structure, one is compressional and torsional, which is mainly composted by faults and folds with the same strike direction. The other is three folds which are broom-like combination in central and southern of the mine, the axes of the folds are arcuate, roughly strikes in the direction of NNW-EW. In vertical, it is a combination of horst, graben and step. Since the late Paleozoic Era, the area is affected by the three periods of tectonic stress field. The first period (Permian Period to Triassic Period)-compressing in SN direction, resulting in the compressing EW tectonic belt and the tensile faults NNW. The second period (Late Triassic Period-Early Cretaceous Period), NWW-SEE compressing with a slight left lateral stress field developed, forming a set of NNE sinistral to reverse faults and fold. The third period (Cretaceous Period), under the action of the right couple, the NNE structure formed in the second period transformed to right to change normal faults, and led to the formation of a broom-like three folds.
Key words: geology; mine structures; combination of features; causes; Baibiguan well
发表期数: 2012年11月第21期
引用格式: 夏祥生,邓声阳,杨照方,等. 山西霍西煤田白壁关井田构造研究[J]. 中国科技论文在线精品论文,2012,5(21):2063-2067.
 
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