Lithium(Li)and beryllium(Be)are strategic metal resources with significant applications in emerging industries such as new materials and information technology.Pakistan is located at the convergence of the Eurasian,Indian and Arabian tectonic plates with favorable Li/Be mineralization conditions.However,due to limited geological investigations the full scope of Li/Be resource potential in Pakistan remains unknown.Low-density geochemical survey(1∶1 million scale)is an effective method for the study of Li/Be mineral distribution and rapid delineation of Li/Be prospective areas.In this paper,the geochemical background of Li/Be in Pakistan is analyzed based on a 1∶1 million low-density geochemical survey.Combined with analysis of the geological background of Li/Be mineralization,the paper aims to determine the prospective areas of Li/Be ore deposits to provide a basis for the prospecting and exploration of rare metal resources in Pakistan.In stream sediments of outcrop areas throughout Pakistan,Li concentrations ranged from 1.56 to 118.2 μg/g,with an average of 20.06 μg/g,while Be concentrations ranged from 0.07 to 7.16 μg/g,averaging 1.22 μg/g.Using 92％cumulative frequency data,18 lithium and 12 beryllium geochemical anomaly areas were delineated,and prospective areas were selected accordingly.The Karakorum terrane and the Himalayan Fold Belt were identified as prospective areas for pegmatite-type lithium ore deposits,while the eastern part of the Chagai magmatic arc was identified for saline brine-type lithium ore deposits.The Karakorum terrane was found to be the most favorable area for further exploration of lithium and beryllium mineral resources.
关键词
锂和铍/稀有金属/资源潜力/地球化学调查/远景区预测/巴基斯坦
Key words
lithium and beryllium/rare metals/resource potential/geochemical survey/prospective areas prediction/Pakistan
维普
万方数据