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由长沙大地构造研究所主持的中国成煤大地构造及其演化学术讨论会于今年9月底至10月初在长沙召开。参加会议的代表来自全国煤炭、地质、石油、化工、冶金系统的有关地质队、公司、研究所和高等院校。 会议对下述问题进行了热烈的讨论:一、不同大地构造单元和大地构造发展阶段,煤的生成条件、煤盆地构造成因、含煤岩系与煤层特征、煤种及其变质因素、煤田分布规律。华北地区,石炭—二叠纪煤的变质,过去多认为主要为生成变质因素,近年通过大量地球物理资料和煤种牌号参数研究,结合地洼区地质历史分析表明,其煤种牌号的差异主要是地洼构
The Symposium on the Structure and Evolution of China’s Coal-Formed Geology hosted by the Changsha Institute of Tectonics and Geomorphology was held in Changsha from late September to early October this year. The representatives of the participants came from relevant geological teams, companies, research institutes and institutions of higher learning in the coal, geological, petroleum, chemical and metallurgical systems throughout the country. The meeting held a lively discussion on the following issues: First, the different tectonic units and geotectonic stages of development, coal production conditions, genesis of coal-bearing basins, features of coal-bearing rock series and coal seams, coal types and their metamorphic factors, coalfield distribution law. The metamorphism of Carboniferous and Permian coal in North China in the past is mainly believed to be mainly metamorphic factors. In recent years, through a large amount of geophysical data and study of coal type and brand parameters, combined with the geological history analysis of Diwa region, it shows that the difference of coal grades is mainly Is to depression