湿润中低山景观条件下土壤金属活动态找矿试验  

SOIL METALLIC ACTIVE STATE PROSPECTING TEST UNDER THE CONDITION OF HUMID LOW-MOUNTAIN LANDSCAPE

作　　者：赵波[1,2] 龚敏[1] 熊燃[3] 龚鹏[1] 曾键年[3] 闭向阳[1] 任利民[1] 贾先巧[1] 马振东[1] 

机构地区：[1]中国地质大学地球科学学院,湖北武汉430074 [2]新疆维吾尔自治区有色地质勘查局地球物理探矿队,新疆乌鲁木齐830011 [3]中国地质大学资源学院,湖北武汉430074

出　　处：《物探与化探》2012年第6期902-906,共5页Geophysical and Geochemical Exploration

基　　金：国土资源部"资源与环境地球化学勘查与评价方法技术研究和推广"项目(1212010660404)

摘　　要：对长江中下游成矿带内的城门山铜多金属矿床进行金属活动态找矿试验。结果表明,处于湿润中低山景观区的城门山矿区,上覆土壤中的Au主要以有机态形式存在,Cu主要以有机态和铁锰氧化物态形式存在,且在矿体上方它们的活动态率均达到30%以上,能较好的反映深部矿化信息。结合试验结果,在土壤测量中发现了城门山南侧的联盟银金矿化点。In this study, the authors tried to carry out metallic active state prospecting test of the Chengmenshan copper polymetallic deposit along the lower Yangtze reaches metallogenic belt. The results show that, in the Chengmenshan ore district within the humid mountain landscape, Au mainly exists as organic Au, and Cu exists as organic Cu and Fe-Mn oxides. Above the ore body,the rate of active state reachs more than 30%, which can fairly effectively reflect deep mineralization information. This method can locate the concealed deposit. Organic Au and Cu can well reflect latent mineralization information. The Lianmeng silver-gold mineralization spot was found by using this method in southern Chengmenshan in the subsequent soil survey.

关 键 词：金属活动态 赋存形态 活动态率 异常特征 城门山矿区 

分 类 号：P632[天文地球—地质矿产勘探]