中国菱镁矿成矿规律及资源潜力分析

提要：菱镁矿是中国的优势矿种之一，具有资源量丰富、分布比较集中、成矿类型较单一、品质优良等特点。文章在全国矿产资源潜力评价成果的基础上，总结了中国菱镁矿的成矿规律，建立了全国菱镁矿的预测类型谱系，分析总结了沉积变质型菱镁矿、与超基性岩有关的风化淋滤型菱镁矿以及湖相沉积型菱镁矿的典型矿床特征，并分别建立了成矿模式。文章划分了7个菱镁矿的成矿区带，分别对各带的资源潜力进行了探讨。

Metallogeny and resource potential of magnesite deposits in China

Abstract: Magnesite is one of the dominant minerals in China. The striking features of magnesite deposits in China are abundant reserves, concentrated distribution, simplex metallogenic types and excellent quality. Based on an analysis of reports of National Mineral Resource Assessment Project, the authors summarized the metallogeny of magnesite, established the genetic lineages of prospecting types, and generalized three types of magnesite deposits (metamorphosed sedimentary type, weathering-infiltration type associated with ultrabasic rocks, and lake sedimentary type). In this paper, metallogenic models of 3 types were built. The authors delineated 7 magnesite metallogenic belts and analyzed their resource potential.