东天山雅满苏地区晚古生代石炭系、二叠系地层含矿性分析

东天山雅满苏地区晚古生代地层以石炭系和二叠系地层为主,为进一步评价其成矿潜力以及揭示赋矿层位,以区内各地层岩石化学光谱分析数据为基础,开展比较详细的地球化学分析,基于成矿元素富集系数(K)、成矿元素变异系数(CV)以及后期叠加强度(D)等三个方面讨论了各地层内Cr、Au、Ni、Pb、As、Sb、Cu、Zn、Ag、Co、Bi共11种元素的地球化学特征。分析显示:成矿元素富集系数(K)分析表明雅满苏地区各地层中除阿尔巴萨依组以外,其余地层As元素均富集,Zn、Cr、Ni、Sb元素也存在不同程度的富集,存在潜在成矿可能;成矿元素后期叠加强度(D)分析表明本区的Au、Sb、Bi、Ni等元素存在不同程度的后期叠加作用;成矿元素变异系数(CV)分析表明本区成矿元素具有一定的成矿潜力。对雅满苏地区晚古生代各地层成矿能力评序得出最优势成矿元素为As,石炭系地层是As元素主要赋矿层位。

Mineralization analysis of Late Paleozoic Carboniferous and Permian strata in the Yamansu area, East Tianshan

The Late Paleozoic strata in the Yamansu area of ??the East Tianshan are dominated by Carboniferous and Permian strata. In order to further evaluate its metallogenic potential and reveal the ore-bearing horizon, this paper is based on the analysis of the petrochemical spectral data of each layer in the area. Geochemical analysis, based on the ore-forming element enrichment coefficient (K), mineralization coefficient of variation (CV) and late superposition strength (D), discussed Cr, Au, Ni, Pb, As, Sb, Cu, Zn, Ag, Co, and Bi. The analysis shows that the enrichment coefficient (K) of ore-forming elements indicates that in the layers of the Yamansu area, except for the Albasayi group, the As elements in the other layers are enriched, and the Zn, Cr, Ni and Sb elements are also rich in different degrees. Set, there is potential mineralization possibility; the late superposition strength (D) analysis of ore-forming elements indicates that there are different degrees of post-addition of elements such as Au, Sb, Bi and Ni in this area; the analysis of CV shows the ore-forming elements in this area have certain mineralization potential. According to the ore-forming ability of the Late Paleozoic layers in the Yamansu area, the most dominant mineral is the As element, and the Carboniferous stratum is the main ore-bearing horizon of the As element.