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本文试以研究板块构造的重要地区青藏高原为例,探讨板块构造与煤田的关系。文中指出:石炭二迭纪以来,青藏高原成煤古气候和古植物的大规模变动是由于地壳板块的移动引起的。不同时代的煤田生成于特定的板块构造单元里。最大的聚煤时期正相当于板块构造发生俯冲和碰撞的运动时期;最小的聚煤时期正相当于板块构造处于相对稳定的运动时期。煤田板块构造类型可分为大西洋型冒地槽煤田、安第斯型地槽煤田、海沟-岛弧型地槽煤田及地台类型煤田等。煤层的层数、厚度和变化取决于板块的活动性。成煤作用最有利的地带是在板块边缘。煤变质程度较高与板块岩浆活动较强烈有关。
This paper tries to study the Qinghai-Tibet Plateau, an important area of plate tectonics, and discusses the relationship between plate tectonics and coalfields. The paper points out that since the Permo-Carboniferous, the large-scale changes of coal-formed paleoclimate and ancient plants in the Tibetan Plateau are caused by the movement of the crustal plate. Coalfields of different ages are generated in specific tectonic units. The largest coal accumulation period is equivalent to the plate tectonic subduction and collision period; the smallest coal accumulation period is equivalent to plate tectonics in a relatively stable period of movement. Coalfield plate tectonic types can be divided into Atlantic-type sag pit coalfield, Andean-type trough coalfield, trench-island arc terrain coalfield and platform type coalfields. The number, thickness and variation of coal seams depend on the activity of the plate. The most favorable zone for coal formation is at the plate edge. The higher degree of coal metamorphism is related to the stronger magmatic activity in the plate.