中国典型金矿集区硫同位素组成及相关问题思考  

Sulfur isotopic composition and related issues of typical gold ore districts in China

作　　者：兰瑞烜 赵红坤 唐世新[1] 段壮 马生明[1] LAN Rui-Xuan;ZHAO Hong-Kun;TANG Shi-Xin;DUAN Zhuang;MA Sheng-Ming(Institute of Geophysical and Geochemical Exploration,Chinese Academy of Geological Sciences,Langfang065000,China;China University of Geosciences(Beijing),Beijing100083,China)

机构地区：[1]中国地质科学院地球物理地球化学勘查研究所,河北廊坊065000 [2]中国地质大学(北京),北京100083

出　　处：《物探与化探》2024年第2期296-313,共18页Geophysical and Geochemical Exploration

基　　金：科技基础资源调查专项资金(2022FY101800);中央级公益性科研院所基本科研业务费专项资金(AS2022J11);国家重点研发计划项目(2018YFE0208300)。

摘　　要：在过去十年找矿突破战略行动上,金矿勘查在我国取得了重大的进展,展现出了巨大的金找矿潜力。矿化剂元素硫与金矿的形成密切相关,已有国内外学者证明硫是矿床形成过程中最重要的元素。硫同位素被广泛用于示踪金矿中的矿质来源,不同的金矿具有不同的地质背景,硫同位素的组成特征受不同硫源控制,金矿中的硫同位素可以反映成矿的地质背景。矿集区尺度的硫同位素在时间—空间分布特征上具有理论意义,在指导找矿勘查方面也具有重要作用。我国的金矿资源可以划分为42个金矿集区,其中胶东、小秦岭、滇黔桂3个金矿集区最为典型,梳理和总结3个典型金矿集区硫同位素特征的异同,可为今后的金矿找矿勘查提供理论和方法支撑。In the Prospecting Breakthrough Strategy(2011~2020),China has made significant progress in the exploration of gold deposits,demonstrating considerable prospecting potential.Element sulfur,a mineralizer,is closely associated with the formation of gold deposits,proved to be the most significant element in gold deposit formation by scholars at home and abroad.Sulfur isotopes have been extensively used to trace the sources of minerals in gold deposits.Different gold deposits reside in distinct geological settings.Since sulfur isotopic compositions are governed by various sulfur sources,sulfur isotopes in gold deposits can reflect the geological settings of mineralization.The ore-district-scale spatio-temporal distribution of sulfur isotopes has theoretical implications,playing a significant role in guiding ore prospecting.The gold resources in China are distributed in 42 gold ore districts,typified by Jiaodong,Xiaoqinling,and Yunnan-Guizhou-Guangxi.This study comparatively analyzed and summarized the characteristics of sulfur isotopes in the three typical gold ore districts,providing theoretical and methodological support for future gold prospecting.

关 键 词：硫 硫同位素 金矿集区 

分 类 号：P632[天文地球—地质矿产勘探]