福建龙永煤田煤中硫与沉积环境的关系

Relationship Between Coal-Forming Environment and Sulfur in Longyong Coalfield of Fujian

应用煤岩学、沉积学、煤化学、地球化学等学科的理论和方法,采用植物结构保存指数、凝胶化指数、搬运指数、沼泽类型指数、古盐度指示指标等煤相参数对福建龙永煤田煤中硫的分布规律和地质成因进行了全面而系统的研究,并阐明了煤中硫与成煤环境的关系。研究表明:煤中硫的赋存状况与植物类型、水介质特征、水动力条件及覆水深度等成煤环境的关系极为密切。

This paper, applying theories and methods of petrology of coal, sedimentology, coal chemistry, geochemistry and other disciplines, and using coal facies parameters such as plant structure preservation index, gelation index, transportation index, marsh-type index, and index of paleosalinity indication, makes a comprehensive and systematic study on distribution and geological causes of coal sulfur in the Longyong Coalfield of Fujian and expounds relationship between coal sulfur and environments of coal-forming. It shows that the occurrence status of coal sulfur has close relations with environments of coal-forming, such as vegetation types, water-media characteristics, hydrodynamic conditions and the depth of overlying water.