投稿时间：2020-05-08
修订日期：2020-06-26
网络发布日期：2020-09-09
中文摘要:富金斑岩-矽卡岩矿床目前提供了全球几乎所有的硒、碲及部分铊产量，其中氧化性富金斑岩-矽卡岩矿床可共伴生碲、硒、铊等稀散金属。文章从元素地球化学行为、矿床类型、岩浆作用、赋存状态、稀散金属与铜金关系等方面，总结了氧化性富金斑岩-矽卡岩矿床中有关碲、硒、铊富集机制的研究进展。碲、硒具有亲铁和亲硫的特征，而铊具有亲硫和亲石的双重特征，三者具有不同程度的挥发性。岩浆热液型矿床伴生有碲、硒、铊矿化。基性岩浆的注入和岩浆硫化物熔离可能是氧化性富金斑岩-矽卡岩矿床碲、硒、铊富集的主要岩浆作用。氧化性富金斑岩-矽卡岩矿床中铜和金含量通常呈正相关性，发育有丰富的含碲/硒/铊矿物，但碲、硒、铊与铜、金的关系还不清楚。长江中下游成矿带发育多个氧化性矽卡岩金矿、矽卡岩铜金矿，伴生大规模的碲、硒、铊矿化，且已被综合回收利用，该带是探讨氧化性富金矽卡岩矿床中碲、硒、铊富集机制的理想对象。
中文关键词:地质学 碲、硒、铊 稀散金属矿床 氧化性富金斑岩-矽卡岩矿床 富集机制
Abstract:Gold-rich porphyry-skarn deposits provide almost all of the selenium and tellurium production in the world and part of the thallium production at present. Many oxidized gold-rich porphyry-skarn deposits in the world contain dispersed metals as by-products such as tellurium, selenium and thallium. This paper summarizes the research progress of the enrichment mechanism of tellurium, selenium and thallium in the oxidized gold-rich porphyry skarn deposits from the aspects of element geochemistry, deposit type, magmatism, mode of occurrence, and the relationship between dispersed metals, and copper and gold. Tellurium and selenium are characterized by siderophile and chalcophile element, and thallium has the dual characteristics of chalcophile and lithophile element. Tellurium, selenium and thallium have different volatilities. Magmatic-hydrothermal deposit is the major type of tellurium, selenium and thallium-bearing deposit. Basic magma injection and magmatic sulfide segregation may be the important magmatism for Te, Se, and Tl enrichment in the oxidized gold-rich porphyry-skarn deposits. Copper and gold values in the oxidized gold-rich porphyry-skarn deposits are typically positively correlated, and various tellurium/selenium/thallium bearing minerals are developed; however, the genetical relationship between tellurium, selenium, thallium, copper and gold is not clear. Many oxidized Au skarn and Cu-Au skarn deposits occur in the Middle-Lower Yangtze River Belt, which contain economic recovered tellurium, selenium and thallium as by-products. Thus, this metallogenic belt is an ideal object for investigating the mechanism of tellurium, selenium, and thallium enrichment in the oxidized skarn Au deposits.
keywords:geology tellurium selenium thallium dispersed metal deposits oxidized gold-rich porphyry-skarn deposits enrichment mechanism
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基金项目:本文得到国家自然科学基金项目（编号：41925011）、国家重点研发计划项目之课题（编号：2016YFC0600206）和企业委托横向项目（编号：CG-2019-HX-S004）联合资助
引用文本：
谢桂青,李新昊,韩颖霄,朱乔乔,李伟,叶晖,宋世伟.2020.氧化性富金斑岩-矽卡岩矿床中碲、硒、铊富集机制的研究进展[J].矿床地质,39(4):559~567XIE GuiQing,LI XinHao,HAN YingXiao,ZHU QiaoQiao,LI Wei,YE Hui,SONG ShiWei.2020.Recent progress in study of enrichment mechanism of tellurium, selenium and thallium from oxidized gold-rich porphyry-skarn deposits[J].Mineral Deposits39(4):559~567
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