摘要
构造作用是控制井田范围内煤层厚度变化的主要地质因素。超化井田二１煤层厚度变化规律研究表明，中生代以来三期挤压应力场作用导致煤层厚度展布的分带性和方向性；
The structural deformation is the principal geological factor that affects the thickness variation of coal seam on a mine field scale. Study of the distribution of No.2 coal seam in Chaohua mine field, Henan Province, suggests that 1) the thickness zonations and their orientation of coal seam have been controlled by the three periods of main compressive stress fields since Mesozoic, 2) the essential trend of southward thickening (toward the core of Chaohua syncline) is the result of rheology of coal seam controlled by gravity over a long period of time, 3) the local variation of coal seam is caused by the small disharmonic folds and faults.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
1998年第4期393-397,共5页
Journal of China University of Mining & Technology
基金
国家"九五"科技攻关项目
关键词
厚度变化
煤层
煤田构造
构造控制
煤田地质
thickness variation
coal seam
coalfield structure
tectonic control
