中国地质调查2025，Vol.12Issue(5)：23-34,12.DOI:10.19388/j.zgdzdc.2025.102
甲基卡稀有金属矿田道泽沟及国采弄巴地区脉石英型高纯石英原料特征及资源潜力
Characteristics and resource potential of vein quartz-type high-purity quartz raw materials in Daozegou and Guocainongba areas of Jiajika rare metal mining field
摘要
Abstract
A significant scale of quartz veins is widely distributed in Jiajika rare metal mining field.The geolog-ical characteristics of quartz veins were investigated in Daozhegou area in the northern mining field and Guocainon-gba area in the southern mining field.The mineralogical characteristics of the quartz veins,the distribution and composition of fluid inclusions,and the content of impurity elements were analyzed by methods such as optical mi-croscopy,powder X-ray diffraction(XRD),scanning electron microscopy-energy dispersive spectrometer(SEM-EDS),chemical analysis via inductively coupled plasma optical emission spectrometry(ICP-OES),micro-area analysis with laser ablation inductively coupled plasma mass spectrometry(LA-ICP-MS)microar-ea,and laser Raman microscopy,to evaluate the potential of these quartz veins as a source of high-purity quartz for vein quartz-type raw materials.The results indicate that the vein quartz in both regions predominantly exhib-its a milky white to translucent appearance with a strong greasy luster and underdeveloped fractures.The content of 15 impurity elements,including Al,Ti,and Li,is relatively low,ranging from 26.02×10-6 to 152.66× 10-6,with SiO2 average content reaching 99.993％and 4N3 level.Fluid inclusions are domicated by primary in dusions,distributed in clusters or bands,and are mainly composed of H2 O and CO2.These characteristics dem-onstrate that the vein quartz possesses the qualities of high-grade raw material for high-purity quartz.The min-ing field possesses the geological conditions for the formation of vein-type high-purity quartz deposits,warran-ting further resource evaluation and geological exploration.This research could provide basis for high-purity quartz exploration in Jiajika rare metal mining field.关键词
高纯石英/脉石英/潜力评价/甲基卡/稀有金属Key words
high-purity quartz/vein quartz/potential evaluation/Jiajika/rare metal引用本文复制引用
杨振,梁斌,潘蒙,郝雪峰,周颂德,唐屹..甲基卡稀有金属矿田道泽沟及国采弄巴地区脉石英型高纯石英原料特征及资源潜力[J].中国地质调查,2025,12(5):23-34,12.基金项目
四川省自然资源厅重大科技项目"川西地区甲基卡锂矿深部成矿规律研究(编号:ZDKJ-2024-003)"及四川省自然科学基金"川西地区伟晶岩型锂矿矿产预测及绿色勘查(编号:24NSFSC2060)"联合资助. （编号:ZDKJ-2024-003）
