南秦岭武当地区小花果4N8级脉石英型高纯石英矿床的发现及其地质意义

doi:10.3799/dqkx.2026.183

南秦岭武当地区小花果4N8级脉石英型高纯石英矿床的发现及其地质意义

doi: 10.3799/dqkx.2026.183

1. 中国地质调查局武汉地质调查中心, 湖北武汉, 430205;
2. 中南地质科技创新中心, 湖北武汉, 430205;
3. 湖北省地质局第七地质大队, 湖北宜昌, 443100;
4. 中国地质大学(武汉), 资源学院, 湖北武汉, 430074

基金项目:

湖北省自然科学基金项目(批准号:2023AFD207

2025AFB962)

中国地质调查局项目(批准号:DD20250208809)的共同资助

详细信息

作者简介:
张维峰(1985-),男,副研究员,硕士生导师,主要从事岩石、矿物、矿床学研究。Email:didazhweifeng@163.com

中图分类号: P61;P612
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出版历程
- 收稿日期: 2026-01-26
- 网络出版日期: 2026-08-25

The discovery and geological significance of the Xiaohuaguo 4N8-grade hydrothermal vein-type High-purity quartz deposit in Wudang uplift, South Qinling, Central China

1. Wuhan Center of Geological Survey, Wuhan 430205, Hubei, China;
2. Research Center for Petrogenesis and Mineralization of Granitoids, Wuhan 430205, Hubei, China;
3. No. 7th Geological Team of Hubei Geological Bureau, Yichang 443100, Hubei, China;
4. School of Earth Resources, China University of Geosciences, Wuhan, 430074, China

摘要

摘要: 高纯石英是半导体、光纤通讯、新能源和航空航天等高新技术领域必不可少的关键材料，其源岩主要来源于花岗伟晶岩、白岗岩和热液脉型石英等。脉石英作为高纯石英矿床重要的成因类型之一，在我国相关研究却较为罕见。本文以南秦岭武当隆起的小花果矿床为例，对其开展高纯石英可制备性研究。显微岩相学分析表明，小花果石英晶体粒径均一，大部分颗粒内部纯净，含少量线状包裹体群，面状包裹体群极少；脉石矿物白云母主要分布于石英矿物颗粒之间，其他矿物赤铁矿、钾长石和锆石等含量极少。此外，小花果石英具有较低含量的Al（6.26～10.15 μg/g）、Ti（0.17～3.45 μg/g）和Li（0.16～0.85 μg/g）等晶格杂质元素。经工艺矿物学提纯后，小花果石英砂的杂质元素总量仅为11.98 μg/g，残留的面状包裹体群极少，符合4N8级高纯石英标准。该高纯石英矿床的发现为我国寻找脉石英型高纯石英提供了新的远景区。
- 高纯石英 /
- 脉石英 /
- 小花果矿床 /
- 武当隆起 /
- 南秦岭
Abstract: High-purity quartz (HPQ) is a critical material for high-tech fields such as semiconductors, optical fiber communications, new energy, and aerospace. Its primary sourced from granitic pegmatite, alaskite, and hydrothermal vein-type quartz. However, hydrothermal vein-type quartz HPQ deposits, as an important genetic subtype, are rarely reported in China. In this contribution, we investigate the potential for HPQ preparation and the metallogenic geochronology of the Xiaohuaguo deposit located in the Wudang uplift of the South Qinling. Microscopic petrographic analysis indicates that the quartz crystals in the Xiaohuaguo deposit are uniform in grain size. Most quartz grains are pure and contain small amounts of linear inclusion clusters, while planar inclusion clusters are extremely rare. The principal gangue mineral muscovite predominantly occurs between quartz grains, while other associated minerals such as hematite, K-feldspar, and zircon are present only in minor quantities. In addition, the Xiaohuaguo quartz contains low concentrations of lattice impurities, with Al, Ti, and, Li contents ranging from 6.26 to 10.15 μg/g, 0.17 to 3.45 μg/g, and 0.16 to 0.85 μg/g, respectively. After purification, the total impurity content of the Xiaohuaguo quartz sand is only 11.98 μg/g, with minimal residual planar inclusion clusters, making it suitable for producing 4N8-grade HPQ. This discovery of Xiaohuaguo HPQ deposit provides a new prospective area for the exploration of hydrothermal vein-type high-purity quartz resources in China.
- High-purity quartz /
- hydrothermal vein-type quartz /
- Xiaohuaguo deposit /
- Wudang uplift /
- South Qinling

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