摘要
板块构造理论为含煤沉积盆地的研究和分类提供了新的思路,依据盆地所处的地壳性质、大地构造位置和形成的地球动力条件,可以将我国含煤沉积盆地划分为不同的盆地类型:克拉通内拗陷盆地、增生大陆边缘盆地、陆内裂谷盆地、伸展滑脱断陷盆地、走向滑动断陷盆地和碰撞期后山前、山间盆地等。根据盆地的沉积-构造特征和形成的力学机制,可进一步归纳为不同的盆地模式。不同类型的含煤沉积盆地具有特定的充填序列、内部沉积构成和沉积环境配置、几何形态和构造格架,从而决定了岩性岩相、厚度的分布和煤层赋存的规律。含煤沉积盆地的分类为煤炭资源评价和预测提供了地质依据。
The theory of plate tectonics has provided a new idea for study and classification of coal-bearing sedimentary basins.Coal basins in China can be divided into different types,such as Intracratonic sag basin,continental accretion margin basin,intracontinental rift basin,extensional detachment fault basin,strikeslip fault basin,and post-collisional mountain front and intramontane basins,etc, depending on the crust characteristics,tectonic positions and geodynamic conditions under which the basins were developed.According to sedimentary-structural features and mechanical mechanism of basin formation,the basins can be classified into different models.Each coal-bearing sedimentary basin is characterized by the specific basin-fill sequences,disposition of depositional environment,geometry and structural framework,which control distribution of facies and thickness of coal measures,as well as occurrence of coal seams.The classification of coal-bearing sedimentary basins could be applied to assessment and predition of coal resources.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1992年第3期1-10,共10页
Journal of China Coal Society
关键词
板块构造
地球动力学
煤
沉积盆地
plate tectonics
geodynamics
coal-bearing sedimentary basin
sedi-mentary-structural basin model
