东昆仑地区金多金属矿床地质特征及成矿机制  

Geological Characteristics and Metallogenic Mechanism of the Eastern Kunlun Region’s Polymetallic Gold Deposits

作　　者：陈霏霏 CHEN Feifei(The Third Geological Brigade of Henan Province Nonferrous Geological and Mineral Bureau,Zhengzhou,Henan 450000,China)

机构地区：[1]河南省有色金属地质矿产局第三地质大队,河南郑州450000

出　　处：《中国锰业》2024年第5期53-59,共7页China Manganese Industry

摘　　要：为探究青海省东昆仑地区按纳格金矿的地质特征及成矿机制,通过地质调查和分析,结合现代矿床勘探技术,对矿床的地层、构造、岩浆岩特征及矿体产状进行了详细研究。结果显示,按纳格金矿主要由奥陶-志留系纳赤台群和古元古界白沙河岩组构成,矿体以脉状和层状分布,且矿化元素丰富,矿体结构连续。流体包裹体地球化学特征分析揭示了矿床成矿阶段的流体来源和性质变化。研究指出,地层、岩浆岩与成矿过程密切相关,成矿机制涉及构造、岩浆和热液等因素的共同作用,按纳格金矿的形成与区域地质背景和多期次地质活动紧密相关。To investigate the geological characteristics and metallogenic mechanisms of the Annag gold deposit in the Eastern Kunlun region of Qinghai Province,geological surveys and analyses were conducted,combined with modern mineral exploration techniques,to study the strata,structures,magmatic rock characteristics,and ore body occurrence in detail.The results show that the Annag gold deposit is mainly composed of the Ordovician-Silurian Nachitai Group and the Proterozoic Baihe River Formation.The ore bodies are distributed in vein and bedded forms,with rich mineralization elements and continuous ore body structures.Fluid inclusion geochemical characteristics analysis reveals the fluid source and property changes during the ore-forming stages.The study points out that strata,magmatic rocks,and the ore-forming process are closely related,and the metallogenic mechanisms involve the combined action of tectonic,magmatic,and hydrothermal factors.The formation of the Annag gold deposit is closely related to the regional geological background and multiple geological events.

关 键 词：大型金多金属矿床 按纳格金矿带 地质特征 流体包裹体 成矿机制 

分 类 号：P612[天文地球—矿床学]