摘要
宿临矿区是淮北煤田的主要赋煤地带。自石炭二叠纪以来,该区经受了多次构造活动。在早期形成的徐淮拗陷基础上主要发育有东西向及北北东向的断裂,这些断裂共同构成了矿区的基本构造格架。断块内褶皱多为开阔短轴褶皱,并发育有次一级的北东向断层及层滑构造等。岩浆岩的侵入明显受断裂构造控制。矿区内地球物理场特征(场值及分布)也正证实了矿区内构造展布及演化的综合特征。而这种构造演化与华北板块南缘和东缘的两条板缘构造活动带密切相关。
The Sulin mine area is a major host coal belt in the Huaibei coalfield. Since Permo-Carboniferous, this area has gone through multiphase tectonic activities. On the basis of Xuhuai depression formed in the early stage, E-W and NNE trending fracture are developed chiefly, which together make up of basis tectonic framework of the mine area. Folds within fault block mostly are broad brachy ones, and fault block developed secondary NE trending faults and layer-slip structures et al. Magmatic intrusion obviously is controlled by faulted structure. While characteristics of geophysical field (field value and its distributing) in the mine area are no other than synthetic reflection of structural distribution and its evolution. Tectonic evolution is closely related to two tectonic activity belt on plate margin of the south and east margin of the North China.
出处
《辽宁工程技术大学学报（自然科学版）》
CAS
北大核心
2002年第3期286-289,共4页
Journal of Liaoning Technical University (Natural Science)
关键词
矿区
构造特征
演化
地球物理场
煤田
fold
fault
geophysical field
characteristics
tectonic evolution
the Sulin mine area
