摘要
新疆卡特巴阿苏金矿是近年来在西天山新发现的大型金矿床,为新疆绿色矿业产业集群建设中金矿采选冶产业链的重点产业基地,研究意义重大。矿床中主要载金矿物黄铁矿发育广泛,本文以黄铁矿物性特征为主要研究对象,通过野外地质编录、镜下观察及反射率、硬度值、热电性测定,发现黄铁矿呈细粒状或集合体时载金能力较强,视觉反射率(Rvis)与金含量呈负相关性。热液成矿期黄铁矿的维氏硬度与含金性相关性不大,黄铁矿热电性具有由上到下P型黄铁矿分布逐渐减少,N型黄铁矿逐渐增多的特点。结合矿石组构和黄铁矿热电性的测量计算得出,卡特巴阿苏金矿黄铁矿形成温度范围为170℃~360℃,经历了高温-中温环境变化。
Katebasu large gold deposit was found in the middle of Tianshan mountain,Xinjiang in recent years.It is an important industrial base of gold mining and metallurgy industry in the construction of Xinjiang green mining industry chain.Pyrites in deposit develop extensively and they are related to mineralized minerals.The paper mainly study mineral feature and their implications of pyrite by geological record,microscopic identification,photometer,sclerometer and electron microprobe analysis.The result show that the gold-bearing of granular pyrite and collective pyrite is better than others,and low reflectivity have a certain positive correlation with gold content.The hardness of pyrite in hydrothermal mineralization period has little correlation with gold content.The results of pyrite pyroelectricity show distribution of the type P pyrites reduced gradually and the type N pyrites increased gradually with the loss of the height.The temperature of pyrite is mainly concentrated in 170℃~360℃,and the environment changes from high-medium temperature.
作者
郑远馨
李引
王驰源
侯缓缓
Zheng Yuanxin;Li Yin;Wang Chiyuan;Hou Huanhuan(Geological Environment Monitoring Institute Xinjiang Uygur Autonomous Region,Urumqi,Xinjiang,830000,China;College of Earth Sciences,Chengdu University of Technology,Chengdu,Sichuan,610059,China;Natural Resources Department of Xinjiang Uygur Autonomous Region,Urumqi,Xinjiang,830000,China)
出处
《新疆地质》
CAS
CSCD
2024年第1期117-121,共5页
Xinjiang Geology
基金
新疆维吾尔自治区自然科学基金项目(2022D01B81)资助。
关键词
新疆
黄铁矿
矿物学特征
地质意义
卡特巴阿苏金矿床
Xinjiang
Pyrite
Typomorphic characteristic
Geological significance
Katbasu gold deposit
