Occurrence characteristics and distribution of paragenetic commercial minerals and associated minerals in coal-bearing strata in China
There are 85 kinds of minerals associated with coal measures in China,with rich species,wide distribution,abundant reserves,high economic and strategic value.According to industrial proper-ties and uses,they can be divided into coal measures energy minerals,coal measures metal minerals and coal measures nonmetallic minerals.This paper systematically summarized the occurrence characteristics and distribution of coal measures energy minerals(coal measures gases,tar-rich coal,oil shale,uranium deposits),coal measures metal minerals(bauxite,iron ore,gallium,germanium,lithium,rare earth elements),and coal measures non-metallic minerals(pyrite,kaolin,fireclay,bentonite,cryptocrystalline graphite).In addition,it was discussed that the occurrence,distribution,development and utilization of paragenetic commercial minerals and associated minerals in coal-bearing strata in 14 major coal production bases in China.The results show that the paragenetic commercial minerals and as-sociated minerals in coal measures mainly occurs in the coal seams,roof and floor or in the strata near the coal seams,and the distribution regularity is similar to that of coal in China,showing obvious tem-poral and regional characteristics.The paragenetic commercial minerals and associated minerals in coal measures are mainly formed in three coal-forming periods in China:Carboniferous-Permian,Early-Mid-dle Jurassic and Late Jurassic-Early Cretaceous.The distribution area is mainly concentrated in Ordos Ba-sin,Qinshui Basin and southern basin of North China,Junggar Basin,Ili Basin and Tuha Basin of Northwest China,Songliao Basin and Erlian basin of Northeast China,South Sichuan,North Guizhou region,Sichuan Basin of Southwest China and other major coal-bearing basins.Coal measures in Shen-dong base,Jinbei base,Jinzhong base,Jindong base,Yunnan-Guizhou base and Xinjiang base are asso-ciated with many kinds of minerals and rich reserves,which have broad prospects for comprehensive de-velopment and utilization.
coal measuresparagenetic commercial mineralsassociated mineralsoccurrence charac-teristicsmineral distributioncoal production bases
万方数据
维普
