地质通报2025，Vol.44Issue(4)：724-733,10.DOI:10.12097/gbc.2024.06.024
青海野马沟地区萤石矿地质特征及找矿远景
Geological characteristics and prospecting potential of the fluorite deposit in the Yemagou area,Qinghai
摘要
Abstract
[Objective]Fluorite and uranium deposits,due to their irreplaceability and strategic value,are both classified as national strategic mineral resources.Investigating the metallogenic conditions,mechanisms,characteristics,and prospecting potential of fluorite deposits holds significant practical and theoretical importance for locating fluorite resources and exploring the spatial and genetic associations between fluorite and volcanic-hosted uranium mineralization.[Methods]This study integrates field geological surveys,petrographic analysis,and regional geological synthesis to investigate the geological characteristics of fluorite deposits and their implications for prospecting volcanic-hosted uranium deposits.[Results]During the exploration of the Haidewula volcanic-hosted uranium deposit in Dulan County,Qinghai Province,seven economically viable fluorite ore bodies were discovered in the Yemagou area west of the mining zone.These fluorite ore bodies exhibit strong continuity,with strike lengths of 100～300 m,true thicknesses of 0.94～11.23 m,and CaF2 grades ranging from 23.02%to 48.27%.Fluorite mineralization displays multi-stage activity,primarily controlled by NW-trending fault systems.Host rocks include crypto-explosive breccia,tectonic breccia,spherulitic rhyolite,and crystal tuff,with wall-rock alterations dominated by silicification,kaolinization,carbonatization,and pyritization.[Conclusions]The study concludes that the deposit is a structurally controlled low-temperature hydrothermal vein-type fluorite deposit,sharing a similar metallogenic setting with volcanic-hosted uranium deposits.It is inferred that the deep and peripheral zones of the fluorite ore bodies may host substantial uranium resources.Future efforts should focus on integrated fluorite-uranium prospecting in the region,with systematic exploration expected to achieve breakthroughs.关键词
萤石/铀矿/地质特征/找矿潜力/野马沟/青海Key words
fluorite/uranium deposit/geological characteristics/prospecting Potential/Yemagou/Qinghai Province分类
地质学引用本文复制引用
杨晓鸿,张宇宏,李彦强,王元昊,邵继,戴佳文..青海野马沟地区萤石矿地质特征及找矿远景[J].地质通报,2025,44(4):724-733,10.基金项目
青海省科学技术厅重点研发项目(编号:2025-SF-141)、青海省省级财政资金地勘项目《青海省都兰县海德乌拉地区矿产资源调查评价》(编号:2024524016jc016)、中央组织部"西部之光"人才计划(编号:青组字[2023]189号)、青海省"昆仑英才"计划(编号:青人才字[2024]1号)、赵鹏大院士创新中心 （编号:2025-SF-141）
