新疆塔乌尔别克金矿矿床地质及稳定同位素地球化学特征  

Geological and stable isotope geochemical characteristics of Tawuerbieke Au deposit in Xinjiang Autonomous Region

作　　者：丁威成 杨志鹏 华北 梁孝伟 谭朝欣 王朋 DING Weicheng;YANG Zhipeng;HUA Bei;LIANG Xiaowei;TAN Chaoxin;WANG Peng(Xingjiang Geological Exploration Institute of China Metallurgical Geology Bureau,Urumqi 830063,Xinjiang Autonomous Region,China)

机构地区：[1]中国冶金地质总局新疆地质勘查院,乌鲁木齐830063

出　　处：《地质找矿论丛》2024年第1期9-18,共10页Contributions to Geology and Mineral Resources Research

摘　　要：新疆塔乌尔别克金矿位于西天山吐拉苏断陷盆地,与阿希金矿相邻。金矿体主要赋存于下石炭统大哈拉军山组第五岩性段的火山岩类中,受4个环形构造及伴生的线性构造控制。本文在阐述塔乌尔别克金矿床地质特征的基础上,论述了金矿石的碳、氢、氧、硫、铅等稳定同位素地球化学特征。认为成矿流体中的碳的主要为岩浆来源,但是较为复杂,部分受到深部碳酸盐岩同位素交换的影响;成矿流体中的水源来自岩浆热液和大气降水的混合;矿石中的硫来自于深部岩浆;铅则显示造山带的特征,主要来自上地壳。分析稳定同位素特征,结合矿床地质特征,塔乌尔别克金矿的矿床类型确定为低硫型浅成低温热液斑岩型金矿。矿床稳定同位素的研究不仅能深化矿床地质的研究,还可对进一步的找矿工作提供珍贵信息。Tawuerbieke Au deposit is adjacent to Axial Au deposit in Tulasu fault basin in Western Tianshan mountains.Ore bodies occur mainly in volcanic rock of the fifth lithologic member of Carboniferous Dahalajunshan formation.They are controlled by four ring structures and the linear structure acompaied respectively.Based on geological characteristics of the Au deposit are dealed with C,H,O and S stable isotropic characteristics of the ore.C in the ore fluid is mainly derived from magmatic source but influenced by isotope exchange with deep carbonatite,H2O in the ore fluid the product of magmatic hydrothermal fluid-meteoric water mixation,S from deep magma,Pb from upper crust characterized be orogenic belt.The stable isotrope and geological characteristics of the deposit show that it is a low sulfur epithermal porphyry Au deposit.Stable isotope study deepens not only understanding of the deposit geology but also provides important information for further prospecting.

关 键 词：塔乌尔别克金矿 矿床地质特征 稳定同位素地球化学 浅成低温热液型金矿 成矿物质来源 西天山 新疆维吾尔自治区 

分 类 号：P618.51[天文地球—矿床学] P597[天文地球—地质学]