本文選題：銅多金屬礦 + 土壤地球化學(xué)特征��； 參考：《金屬礦山》2017年01期

【摘要】：繁昌縣小紫山地區(qū)位于安徽省南部,區(qū)內(nèi)銅多金屬礦處于安徽沿江成礦帶中段,繁昌成礦區(qū)東南緣。結(jié)合該區(qū)1∶5 000地質(zhì)測(cè)量、1∶5 000土壤地球化學(xué)測(cè)量成果,分析了區(qū)域成礦地質(zhì)背景,并對(duì)Cu、Pb、Zn、Mo、As、Sb、Bi、Au等元素的土壤地球化學(xué)特征進(jìn)行了如下分析:首先運(yùn)用迭代法計(jì)算出了測(cè)區(qū)各元素的地球化學(xué)背景值和異常下限,并圈定了區(qū)內(nèi)單元素的異常范圍;然后應(yīng)用多元統(tǒng)計(jì)分析方法厘定了區(qū)內(nèi)成礦元素組合,圈定了3處綜合異常帶作為找礦靶區(qū),即位于測(cè)區(qū)東北端以Cu、Pb、Zn、Mo為主的Ⅰ#綜合異常帶和以Cu、Pb、Zn、As、Sb、Bi為主的Ⅱ#綜合異常帶以及位于測(cè)區(qū)中部以Cu、Pb、Zn、Mo為主的Ⅲ#綜合異常帶。研究表明:區(qū)內(nèi)Cu、Pb、Zn、Mo異常濃集中心明顯,套合程度高,主要沿NE向呈帶狀展布,異常強(qiáng)度東高西低,與區(qū)內(nèi)構(gòu)造蝕變帶和地表礦化體對(duì)應(yīng)較好,為后續(xù)找礦工作提供了豐富完整的地球化學(xué)找礦信息。在上述分析的基礎(chǔ)上,綜合區(qū)內(nèi)成礦物質(zhì)來源條件、成礦地質(zhì)條件以及類比鄰近同類型銅多金屬礦床,認(rèn)為區(qū)內(nèi)形成中—低溫?zé)嵋好}型和矽卡巖型銅多金屬礦床的潛力較大。
[Abstract]:The Xiaozishan area of Fanchang County is located in the south of Anhui Province. The copper polymetallic deposit in the area is located in the middle section of the metallogenic belt along the Yangtze River in Anhui Province and in the southeast margin of the Fanchang metallogenic area. Based on the results of 1: 5 000 geochemistry survey of the 1:5 geological survey in this area, the regional metallogenic geological background is analyzed. The characteristics of soil geochemistry of Cu ~ (2 +) Pb ~ (2 +) Zn ~ (2 +) Mo ~ (2 +) S _ (B) ~ (+) ~ (2 +) ~ (2 +) are analyzed as follows: firstly, the geochemical background value and anomaly lower limit of each element in the area are calculated by iterative method, and the anomalous range of single element in the area is delineated. Then using the method of multivariate statistical analysis to determine the metallogenic element assemblage in this area and delineate three synthetic anomalous zones as the prospecting target area. That is to say, in the northeast end of the survey area, the integrated anomaly zone is 鈪，

本文編號(hào)：1940055