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芦子园铅锌铁矿位于保山地块南段,南东部为昌宁-孟连被动边缘褶冲带,近南北向镇康复背斜与北东向南汀河断裂带的交汇部位,是西南“三江”成矿带的重要组成部分。目前,矿区铅锌铁矿成矿物质来源不清,严重制约了该区地质找矿,本次探索性对其成矿物质来源进行了浅析。(1)硫同位素特征芦子园铅锌铁矿石中闪锌矿的δ34S为9.9‰~10.2‰,方铅矿的δ34S为9.2‰~9.5‰,具有变化范围窄、硫同位素组成相对均一的特点,并表现出相对富集34S的同位素组成特征。
Luziyuan lead-zinc iron ore is located in the southern section of Baoshan block, south east of Changning - Menglian passive edge fold fold belt, near the north-south town rehabilitation anticline and the northeast to the Tingtinghe intersection of the fault zone is the southwest “Sanjiang ” metallogenic belt is an important part. At present, the sources of the ore-forming lead-zinc-iron ore are unclear, which severely restricted the geological prospecting in the area. This exploratory study has briefly analyzed the sources of the ore-forming materials. (1) Sulfur Isotope Characteristics δ34S of sphalerite in LuziYuan lead-zinc-iron ore is 9.9 ‰ ~ 10.2 ‰, while δ34S of galena is 9.2 ‰ ~ 9.5 ‰ with narrow variation range and relatively homogeneous sulfur isotope composition Characteristics, and shows the relative enrichment of 34S isotopic composition characteristics.