西北地质2024，Vol.57Issue(4)：144-156,13.DOI:10.12401/j.nwg.2024042
荒漠浅覆盖区萤石矿定位预测技术研究
Research on Location and Prediction Technology of Fluorite Deposits in Shallow Desert Coverage Area
摘要
Abstract
The Beishan region,located in the northwest of China,is a significant fluorite metallogenic belt.De-spite favorable metallogenic geological conditions in the area,the Gobi Desert's shallow cover layers result in minimal outcrops at the surface.Therefore,comprehensive geophysical studies are necessary to explore the re-gional metallogenetic potentiality and locate mineral veins beneath the cover layers.An example of this explo-ration is the Huashitou area in the eastern segment of the Beishan metallogenic belt.A combination of high-pre-cision magnetic,induced polarization-resistivity,ground gamma-ray spectrometry,portable X-ray fluorescence analysis,and audio-magnetotelluric(AMT)survey was used for comprehensive exploration.The area-based in-duced polarization and magnetic methods effectively identified the distribution of hidden mineral-bearing spaces,while ground gamma-ray spectrometry and portable X-ray fluorescence analysis constrained the mineral-ization anomalies of deposit spaces.The AMT survey established a deep structure model of the occurrence of concealed fluorite deposits,and its validity was evaluated through engineering verification methods.This study establishes a comprehensive geological-geophysical location prediction technique and method combination that can provide theoretical and technical support for the positioning and prediction of fluorite deposits in the Beis-han metallogenic belt and shallow cover areas in the Gobi Desert.关键词
隐伏萤石矿/综合物探方法/戈壁荒漠/浅覆盖区/北山成矿带Key words
hidden fluorite ore/comprehensive geophysical methods/gobi desert region/shallow covered areas/Beishan metallogenic belt分类
天文与地球科学引用本文复制引用
刘诚,唐卫东,杨凯,李含,贺景龙,姚川,李新斌..荒漠浅覆盖区萤石矿定位预测技术研究[J].西北地质,2024,57(4):144-156,13.基金项目
陕西省自然科学基础研究计划项目(2023-JC-QN-0365),中国地质调查局项目(DD20243342、DD20243333、DD20211552)联合资助. （2023-JC-QN-0365）
