全文快速搜索:          
引用本文:姚春彦,王天刚,倪培,姚仲友,郭维民,朱意萍,王威. 铌钽矿床类型、特征与研究进展[J]. 中国地质, 2021, 48(6): 1748-1758.
YAO Chunyan,WANG Tiangang,NI Pei,YAO Zhongyou,GUO Weimin,ZHU Yiping,WANG Wei. Metallogenic types, characteristics and research progress of Nb-Ta deposits[J]. Geology in China, 2021, 48(6): 1748-1758(in Chinese with English abstract).
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  下载PDF阅读器  关闭
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 662次   下载 1885 本文二维码信息
码上扫一扫!
分享到: 微信 更多
铌钽矿床类型、特征与研究进展
姚春彦1, 王天刚1, 倪培2, 姚仲友1, 郭维民1, 朱意萍1, 王威3
1.中国地质调查局南京地质调查中心, 江苏 南京 210016;2.南京大学地球科学与工程学院, 江苏 南京 210023;3.中国地质调查局郑州矿产综合利用研究所, 河南 郑州 450000
摘要:
铌、钽矿产分布较广。内生铌钽矿成矿类型主要为伟晶岩型、稀有金属花岗岩型、碳酸岩型和碱性岩型;外生矿床多为内生矿床经过风化和沉积等外生作用发生二次富集的风化壳型和残坡积、冲积砂矿型。从成矿时代来看,伟晶岩型矿床成矿时代跨度较大,从3.08 Ga到0.19 Ga;碱性岩型矿床主要成矿期分别在2.25~1.35 Ga和0.75~0.19 Ga;碳酸岩型矿床成矿期主要分布在0.75~0.6 Ga和0.4~0.35 Ga;花岗岩型主要分布在0.75~0.19 Ga的中晚期。碳酸岩型铌矿床和伟晶岩型钽矿床是目前勘探的主要目标。
关键词:  铌钽矿床  成矿类型  时空分布  勘探目标  矿产勘查工程
DOI:10.12029/gc20210607
分类号:P618.79
基金项目:中国地质调查局项目(DD20201155、DD20190441)资助。
Metallogenic types, characteristics and research progress of Nb-Ta deposits
YAO Chunyan1, WANG Tiangang1, NI Pei2, YAO Zhongyou1, GUO Weimin1, ZHU Yiping1, WANG Wei3
1.Nanjing Center, China Geological Survey, Nanjing 210016, Jiangsu, China;2.School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, Jiangsu, China;3.Zhengzhou Institute of Comprehensive Utilization of Mineral Resources, China Geological Survey, Zhengzhou, 450000, Henan, China
Abstract:
Niobium and tantalum resources are widely distributed in the world. Their endogenous metallogenic deposits are mainly hosted in pegmatite, rare-metal granite, carbonatite, and alkaline rocks. Their exogenetic deposits are mostly the products of secondary enrichment through exogenous processes such as weathering and deposition from endogenous deposits. The metallogenic epoch of pegmatite-hosted deposits has a large span from 3.08 Ga to 0.19 Ga; alkaline rock-hosted deposits are at 2.25-1.35 Ga and 0.75-0.19 Ga respectively; carbonatite-hosted deposits are mainly in 0.75-0.6 Ga and 0.4-0.35 Ga; and granite-hosted deposits are mainly distributed in the middle and late stages of 0.75-0.19 Ga. At present, carbonatite-hosted niobium deposits and pegmatite-hosted tantalum deposits are the main exploration targets.
Key words:  niobium and tantalum  metallogenic type  spatial and temporal distribution  exploration target  mineral exploration engineering