摘要
20世纪80年代以后,赣南钻在华南五省区离子吸附型稀土矿勘查中得到越来越广泛地应用。为研究其在滇西南中山地貌区稀土矿勘查中的应用效果,在临沧岔河矿区通过对浅井和赣南钻2种勘查工程在相邻位置施工,从同一取样层位和相同样品长度进行采样,根据揭露的矿体厚度和稀土品位估算资源量。结果表明,两种工程控制的333类工业矿资源量绝对误差为246.2 t,相对误差5.25%,低稀土品位矿资源量绝对误差92.9 t,相对误差4.36%;334类工业矿资源量绝对误差为804 t,相对误差2.92%。综上所述,赣南钻可以有效地揭露矿体的产状和特征,实现勘查评价的目的。
Since the 1980 s,the Gannan drill(manual impact sampling drill)has been widely used in the exploration of ion-adsorption rare earth deposits in the five provinces in South China.The application effect of Gannan drill rare-earth mineral exploration in Zhongshan geomorphic area of southwest Yunnan was studied,the amount of resources in Chahe mining area based on two exploration methods(shallow-well construction and Gannan drilling)was estimated according to the exposed ore body thickness and grade with same layer sampling and the same sample length.The results show that the absolute error of 333 type industrial mineral resources controlled by the two projects is 246.2 t and the relative error is 5.25%.The absolute error of low-grade mineral resources is 92.9 t and the relative error is 4.36%.The absolute error of 334 type industrial mineral resources is 804 t,and the relative error is 2.92%.The Gannan drill can effectively expose the occurrence and characteristics of orebodies and realize the purpose of exploration and evaluation.
作者
张子军
瞿亮
段文婷
严城民
伍荣林
王长兵
郎维雄
倪光清
ZHANG Zi-jun;QU Liang;DUAN Wen-ting;YAN Cheng-min;WU Rong-lin;WANG Chang-bing;LANG Wei-xiong;NI Guang-qing(No.209 Geological Party,Geological Bureau of Yunnan Nuclear Industry,Kunming 650101,China;Rare Earth,Rare Mental and Rare-Scattered Elements Mineral Resource Exploration and Evaluation Engineering Research Center of Yunnan Province,Kunming 650101,China;Yunnan Department of Natural Resources Geological Exploration Fund Management Center,Kunming 650000,China;Regional Geological and Mineral Resources Survey Brigade of Yunnan Geological and Mineral Resource Bureau,Yuxi 653100,China)
出处
《稀土》
CAS
CSCD
北大核心
2022年第4期100-109,共10页
Chinese Rare Earths
基金
云南省地质勘查基金项目(2016015)
2017年云南省高新技术产业发展项目(201704)
关键词
离子吸附型稀土矿
赣南钻
应用对比
资源量
滇西南
ion-adsorption rare earth mine
Gannan drill
application comparison
resource quantity
southwest Yunnan province
作者简介
张子军(1986-),男,云南大理人,工程师,长期从事地质矿产调查、矿产勘查工作,E-mail:562337090@qq.com;通讯作者:倪光清,高级工程师,E-mail:1213835731@qq.com
