四川宝兴大理石矿成矿规律及资源潜力分析  

Metallogenic Regularity and Resource Potential of Marble Deposit in Baoxing,Sichuan Province

作　　者：高显忠 高瑞祥[1] 马源 GAO Xian-zhong;GAO Rui-xiang;MA Yuan(Sichuan Branch of China National Geological Exploration Center of Building Materials Industry,Chengdu 610000,China)

机构地区：[1]中国建筑材料工业地质勘查中心四川总队,四川成都610000

出　　处：《中国非金属矿工业导刊》2021年第5期33-36,共4页China Non-Metallic Minerals industry

摘　　要：四川宝兴位处扬子准地台和松潘甘孜地槽褶皱系结合部位,是我国西南地区重要的大理石产地之一,大理石矿主要产于前震旦系盐井群锅巴岩组(AnZg)的第二岩性段和第四岩性段,已发现有多处大理石矿床,通过对大地构造背景、地层、变质作用等特征研究及区内典型大理石矿特征总结,矿床类型为区域低温动力变质作用的沉积变质型矿床;区内锅巴岩至陇东一带出露有长约33km,面积约40km2的锅巴岩组地层,认为该区具有较好成矿条件;区内盐井群锅巴岩组地层内大理石矿产资源潜力大。Baoxing county of Sichuan province is located in the combination of the Yangtze platform and songpan Ganzi geosynclinal fold system.It is one of the important marble producing areas in southwest China.Marble deposit is mainly produced in the second and fourth lithologic member of the Guobayan formation(AnZg)of the Pre-Sinian Yanjing group.Based on the study of tectonic background,stratigraphy and metamorphism and the summary of typical marble ore features in the area,the deposit type is sedimentary metamorphic deposit under regional low temperature dynamic metamorphism.There are 33 km long and 40 km^(2) of Guobayan formation strata outlying from Guobayan to Longdong in the area,which is considered to have good metallogenic conditions.Marble mineral resources in Guobayan formation of Yanjing group have great potential.

关 键 词：宝兴县 大理石 锅巴岩 资源潜力 

分 类 号：P619.223[天文地球—矿床学]