新疆尉犁县双峰岭金矿床特征及资源潜力分析  

Analysis of the Characteristics and Resource Potential of Shuangfengling Gold Deposit in Yuli County,Xinjiang Province

作　　者：张红英[1] 赵玉社 张彬 ZHANG Hongying;ZHAO Yushe;ZHANG Bin(Xi'an Center of China Geological Survey, Xi'an 710054, Shaanxi, China;Northwest Geological Research Institute, Bureau of Metallurgy Geology Exploration and Engineering, Xi'an 710119, Shaanxi,China)

机构地区：[1]中国地质调查局西安地质调查中心,陕西西安710054 [2]中国冶金地质总局西北地质勘查院,陕西西安710119

出　　处：《西北地质》2022年第1期190-201,共12页Northwestern Geology

基　　金：中国地质调查局项目“东天山昌吉—双沟山地区区域地质调查”(DD20190065);企业风险勘查项目“新疆尉犁县双峰岭金矿普查”。

摘　　要：双峰岭金矿床处于塔里木板块东北缘的库鲁克塔格陆缘地块,北邻艾尔宾晚古生代残余盆地,南为塔里木中央地块;金矿体严格受地层岩性、韧性剪切带、脉岩三重控制。矿石类型有石英脉型和石英脉蚀变岩复合型;蚀变主要有绿泥石化、褐铁矿化、黄钾铁矾化、绢云母化、碳化和碳酸盐化、硅化等。金矿成矿物质主要来自变质热液,由于矿体受断裂构造控制,断裂构造的多期活动为其提供了有利的运移通道和容矿空间,来自深部的成矿物质沿其通道上升、运移,由于热液作用,使Au元素进一步活化迁移并携带围岩中的Au元素在构造有利部位沉淀富集形成金矿;笔者详细描述了双峰岭金矿的地质特征及控矿因素,总结出含Au石英脉标志、矿物标志、断裂构造标志、围岩蚀变标志、地球化学标志5个方面的找矿标志。最后结合双峰岭金矿区3个矿段矿体特征,初步预测了整个矿区的资源潜力。Shuangfengling gold deposit is located in the Kuluqtag continental block of the northeastern margin of Tarim plate,adjacent to the Ailbin late Paleozoic residual basin to the north,and central Tarim block to the south.The gold orebody is strictly controlled by stratigraphic lithology,ductile shear zone and vein rock.The ore types include quartz vein type and compound quartz vein-altered rock type.The alteration mainly includes chloritization,limonitization,jarosite,sericite,carbonization,carbonation,and silicification,etc.The metallogenic material of gold mainly comes from metamorphic hydrothermal.The ore bodies are controlled by fracture structure,and the mutiperiodic activities of fracture structure provided the ore with favorable migration and space so as the metallogenic material can rise and migrate along the channel.The hydrothermal process makes the gold element further migrate and carry gold element to favorable areas,thus forming gold mine.This paper describes in details the geological characteristics and ore-controlling factors of Shuangfengling gold deposit,and summarizes five prospecting indicators of prospecting,i.e.gold-bearing quartz vein,mineral,fault structure,surrounding rock alteration and geochemistry.Finally,combined with the characteristics of three ore sections in Shuangfengling gold mine area,the authors predict preliminarily the resource potential of this area.

关 键 词：双峰岭金矿床 变质-热液构造叠加型 库鲁克塔格陆缘地块 资源潜力 新疆 

分 类 号：P618.51[天文地球—矿床学]