【作者】 温利刚； 曾普胜； 詹秀春； 范晨子； 孙冬阳； 赵文博；

【Author】 WEN Ligang;ZENG Pusheng;ZHAN Xiuchun;FAN Chenzi;SUN Dongyang;National Research Center for Geoanalysis;China University of Geosciences;

【机构】 国家地质实验测试中心； 中国地质大学(北京)；

【摘要】 矿物表征自动定量分析系统(Automated Mineral Identification and Characterization System,简称AMICS)是目前世界上最新一代的矿物自动分析系统,是矿物与地质行业最前沿的分析测试方法。本文基于AMICS,开展云南武定迤纳厂铁-铜-稀土矿床的矿石矿物特征研究。在云南武定迤纳厂铁-铜-稀土矿床发现了氟碳铈矿、氟碳钙铈矿、褐帘石、独居石、铌铁矿、(含铌)金红石、褐钇铌矿等(含)稀土稀有元素矿物。其中,氟碳铈矿主要富集于条纹条带状矿石中,与铁氧化物矿物紧密共生;氟碳钙铈矿主要富集在脉状矿石中,与绿泥石、石英、铁白云石等脉石矿物以及黄铜矿、黄铁矿等铜硫化物紧密共生。研究为矿床中铁-铜矿石稀土、稀有金属等战略矿产资源的赋存状态提供了较为准确的数据,同时通过实例为矿物学研究建立了一套先进实用的表征方法,可望在地质、勘探、矿产资源的有效利用等领域得到更广泛应用。更多还原

【Abstract】 Automated Mineral Identification and Characterization System(AMICS) is the latest mineral automatic analysis system after the QEMSCAN and MLA, and so far it is the most up-to-date analytical and testing technology in mineralogy and geology in the world. The AMICS has been utilized to study the mineral characteristics of ores from the Yinachang Fe-Cu-REE deposit in the central Yunnan Province region, SW China. The results indicate that there exist a lot of rare earth minerals(e.g., parasite, bastnaesite, allanite and monazite), REE-bearing minerals(e.g., fergusonite) and a small number of rich-rare elements minerals(e.g., columbite, Nb-bearing rutile and fergusonite). Among them, bastnaesites are mainly concentrated in the banded ore, closely associated with iron oxide minerals. Parasites are enriched partially in the vein ores, closely coexisted with chlorite, quartz, ankerite and sulfides such as chalcopyrite, pyrite, etc. This study provides accurate and reliable evidences for the modes of occurrence of strategical mineral resources such as rare earth and rare metals in iron copper ore. And an advanced and practical method for analyzing the mineralogical characteristics has been established through an application example, it is expected to be more widely used in fields such as geology, prospecting and effective utilization of mineral resources.更多还原