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火德红铅锌矿床位于扬子陆块西南缘的滇东北铅锌成矿区西南部火德红背斜南倾伏端。矿体产于中泥盆统曲靖组。矿区主要有1个主矿体,为扁豆状、透镜状,产状与围岩一致,产出层位基本稳定,层控特征明显。矿石类型主要有斑块状、致密块状黄铁矿铅锌矿石、脉状铅锌矿石、角砾状铅锌矿石,属沉积改造型铅锌矿床。矿石金属硫化物的硫、铅同位素组成显示,δ34 S值为-16.6‰~-10.4‰,平均-13.6‰,变化范围窄,贫34 S富32S,硫来自中泥盆世海水硫酸盐细菌还原;~(206)Pb/~(204)Pb值为18.236~18.485,~(207)Pb/~(204)Pb值为15.658~15.816,~(208)Pb/~(204)Pb值为38.288~38.910,主要分布于上地壳演化线上方,μ值9.60~9.88,Th/U比值3.76~3.93,指示铅来源于上地壳。矿石铅的单阶段模式年龄为351 Ma~460 Ma,处于赋矿地层上泥盆统宰格组与矿区出露的最老地层中奥陶统上巧家组地层时代之间,推测矿床成矿物质可能来自赋矿地层及其下伏地层。
The Huodedehong lead-zinc deposit is located on the south dip of the Huodeanghong anticline in the southwestern part of the lead-zinc ore-forming area in the northeastern Yunnan northeastern margin of the Yangtze block. Ore body produced in the Middle Devdust Qujing group. There are mainly one main ore body in the mining area, which is lenticular and lenticular with the same shape as the surrounding rock. The output strata are basically stable and the stratum controlling characteristics are obvious. Ore types are mainly plains, massive massive pyrite lead-zinc ore, vein lead-zinc ore, brecciated lead-zinc ore, a deposit of lead-zinc deposits. Sulfur and lead isotopic composition of the ore metal sulfide shows that δ34S values range from -16.6 ‰ to -10.4 ‰, with an average of -13.6 ‰, with a narrow range of variation and depletion of 34 S-rich 32S. Sulfur comes from the reduction of marine sulfate bacteria in the Middle Devonian ; The Pb value of ~ (206) Pb / ~ (204) Pb was 18.236 ~ 18.485, the value of Pb ~ (204) Pb was ~ 15.658 ~ 15.816 and the value of Pb ~ (204) Pb was ~ 38.910, mainly distributed above the upper crustal evolution line, with μ values ranging from 9.60 to 9.88 and Th / U ratios ranging from 3.76 to 3.93, indicating that lead is derived from the upper crust. The single-stage model age of lead in lead ore is 351 Ma to 460 Ma, and is located between the Upper Ordovician upper Qiaojia Formation of the Upper Devonian Zhage Formation exposed on the ore-hosting strata and the ore-bearing formation. Material may come from ore-bearing formations and their underlying strata.