安徽省太湖县刘羊河金红石砂矿地质特征及找矿标志研究  

Study on geological characteristics and prospecting indicator of Liuyanghe Rutile Sand Mine,Taihu County,Anhui Province

作　　者：张蕾[1] ZHANG Lei(No.311 Geology Team,Bureau of Geology and Mineral Exploration of Anhui Province,Anqing 246003,Anhui,China)

机构地区：[1]安徽省地质矿产勘查局311地质队,安徽安庆246003

出　　处：《资源信息与工程》2024年第4期42-45,49,共5页Resource Information and Engineering

摘　　要：在太湖县刘羊河金红石砂矿区开展的地质填图、重砂测量、钻探等地质工作基础上,总结了刘羊河金红石砂矿区域地质、矿区地质、矿床地质特征,确定了砂矿体赋存于第四系全新统的砂层及砂砾层中。认为:矿床成因类型为河谷冲积型,砂矿体形状受地貌控制,与河谷形状一致;大别山前剥蚀丘陵区内次级地貌单元-侵蚀堆积河谷区有利于砂矿的形成和保存;大别山岩群桥岭岩组和新元古代变质侵入岩及石英脉中的矿物为本区金红石重要的物质来源;地貌特征、物源母岩、重砂异常是金红石砂矿重要的找矿标志。以期为安徽省大别山南部潜山、太湖一带进一步开展金红石砂矿床找矿工作提供参考。Based on geological mapping,heavy sand surveying,and drilling conducted in the Liuyanghe Rutile Sand Mine of Taihu County,we have systematically summarized the regional geology,mine area geology,and geological characteristics of the deposit.It has been determined that the sand ore body occurs within the Quaternary Holocene sand and gravel layers.The deposit is categorized as river valley alluvial type,with its shape controlled by geomorphology aligned with the river valley's form.The erosion accumulation river valley area,as secondary geomorphic unit with in the former denuded hills of the Dabie Mountain,is conducive to the formation and preservation of sand ore.Minerals from the Qiaoling Formation of the Dabie Mountain Group,Neoproterozoic metamorphic intrusive rocks,and quartz veins serve as important sources of rutile in this area.Geomorphic features,parent rock material sources,and heavy sand anomalies are identified as crucial exploration indicators for rutile sand ores.This paper aims to provide reference for further prospecting work of rutile sand ore deposits in the southern Dabie Mountains of Anhui Province,Qianshan and Taihu.

关 键 词：金红石砂矿床 地质特征 找矿标志 刘羊河 

分 类 号：P618[天文地球—矿床学]