和田县火烧云和萨岔口铅锌矿区矿石特征对比研究

Comparative Study on Ore Characteristics of Huoshaoyun and Satchakou Lead-zinc Ore Areas in Hotan County

通过分析矿石矿物成分、金属矿物特征、矿石结构、构造及碳氧、硫、铅同位素对新疆和田县火烧云铅锌矿和萨岔口铅锌矿矿石特征进行对比研究。火烧云矿石总体以白铅矿菱锌矿矿石为主,萨岔口铅锌矿主要以菱锌矿为主。两者碳氧同位素比值接近,指明为海相形成环境。火烧云具有比萨岔口铅锌矿更低的硫同位素比值,说明两者岩浆热液来源具有差别;铅同位素比值分析表明,火烧云比萨岔口具更深的构造形成环境,并伴随造山运动。

In order to make a comparative study on the ore characteristics of lead and zinc ores in Huoshaoyun and Sachakou,It is expected to play a guiding role in searching for the same type of deposits in the same regional background,a comparative study was made on the lead and zinc ores from Huoshaoyun and Sachakou in Hetian County,Xinjiang Province from the aspects of mineral composition,Based on the analysis of ore mineral composition,metal mineral characteristics,ore structure,structure and carbon,oxygen,sulfur and lead isotopes,the ore characteristics of Huoshaoyun leadzinc mine and Sachakou leadzinc mine are compared in Hetian County,Xinjiang.Huoshaoyun ore is mainly composed of white lead ore and smithsonite ore,while Sachakou leadzinc ore is mainly composed of smithsonite.The carbon and oxygen isotope ratios of the two are close,indicating the marine formation environment;Huoshaoyun has a lower sulfur isotope ratio than Sachakou leadzinc deposit,which indicates that there are differences between the two magmatic hydrothermal sources;The analysis of lead isotope ratio shows that Huoshaoyun lead and zinc ores has a deeper tectonic formation environment than Sachakou lead and zinc ores,which is accompanied by orogeny.