皖南地区区域地球化学特征及成矿潜力的地球化学预测  

Regional Geochemical features and geochemical prognosis of mineralization potential in southern Anhui

作　　者：程乃福 

机构地区：[1]安徽省地球物理地球化学勘查技术院,安徽合肥230022

出　　处：《安徽地质》2011年第3期201-206,共6页Geology of Anhui

摘　　要：根据皖南地区1:20万区域化探资料,计算了区内元素的背景值、区域浓集系数、总体变化系数等参数,阐明了区内元素含量空间分布与成矿元素共生组合特征。使用区域浓集系数及变化系数两个参数,对皖南地区32种元素的成矿潜力进行排序,在目前安徽省地质勘查主攻矿种中,皖南地区的成矿潜力依次为金(银)-钨-钼-铜-铀-锌-铅。同时根据地球化学块体理论和方法,预测了区内金、银资源量,分别为金474t、银16117t,显示出较大的找矿潜力。Based on 1：200000 regional geochemcial exploration data on southern Anhui,this paper calculated background values,regional enrichment coefficient,overall variation coefficient of elements in the area,described spatial distribution of contents of elements and the features of paragenetic association of elements for mineralization,put 32 elements in order according to their mineralization potential in southern Anhui using regional enrichment coefficient and variation coefficient.Among the major target minerals for geological exploration in Anhui Province,Au（Ag）-W-Mo-Cu-U-Zn-Pb show mineralization potential in decreasing order in the area.Based on geochemical block theory and method,gold and silver resources were estimated as 474t and 16117t respectively,indicating great potential for prospecting.

关 键 词：地球化学特征 成矿潜力 地球化学块体 皖南地区 

分 类 号：P632[天文地球—地质矿产勘探]