中国磷矿主要矿集区及其资源潜力探讨

DISCUSSION ON THE PRINCIPAL PHOSPHORITE-CONCENTRATED DISTRICTS AND THE RESOURCE POTENTIAL IN CHINA

在分析研究中国磷矿床的成因类型和工业类型的基础上,将中国磷矿床划分为4个矿床类型11个矿床式,最为重要的磷矿床类型包括沉积型磷块岩矿床、变质型磷灰岩矿床和岩浆型磷灰石矿床。在中国磷矿成矿区带划分方案的基础之上,综合成矿规律,构造背景、岩相古地理等因素划分出22个磷矿矿集区。其中磷矿重要矿集区15个,基本包括了中国主要的磷矿产地及潜力地区,总体表现了中国重要聚磷区的基本特征。磷矿资源潜力在0.5亿t以上的潜力区分布在15个重要聚磷区内,初步预测中国磷矿远景资源量约500多亿t。

The phosphorous deposits in China have been divided into four types and eleven styles durling analysing the formation cause and economic types,the most important types of which are sedimentary phosphorite deposit,metamorphic phosphate deposit and magma phosphate deposit.We mark off 22 phosphorite-concentrated districts on the basis of some factors such as division project,metallogenic regulation,structural setting and lithofacies palaeogeography,15 districts of which are the important phosphorite-concentrated districts,including some primary phosphorite occurrence and with potential areas.The potential areas with 50 million tons of phosphorite are distributed in the 15 districts,we predicted that there were more than 50 billion phosphorite prospective reserve.