为了探究樟潭地区花岗伟晶岩成矿潜力,对野外新发现的花岗伟晶岩地质特征进行分析,并采集样品进行分析测试.结果表明:樟潭地区花岗伟晶岩形成于晚白垩世,属造山后伸展阶段岩浆产物;古老地层可提供大量稀有金属成矿元素并形成封闭环境;构造活动为花岗伟晶岩形成和稀有金属迁移富集创造了空间;花岗伟晶岩中(Nb+Ta)2O5的质量分数为0.013 7％,达最低边界品位.樟潭地区花岗伟晶岩具有较大的稀有金属矿成矿潜力.
In order to explore the metallogenic potential of granitic pegmatite in Zhangtan area,analyzed the geological characteristics of newly discovered granitic pegmatite in the field,and collected analytical test samples,the results show that the granitic pegmatite in the area was formed in the Late Cretaceous,which is magmatic product of the post-orogenic extension stage.Ancient strata provided a large amount of rare metal mineralization elements and formed a closed environ-ment.Tectonic activities created spaces for granite pegmatite formation and rare metal migration and enrichment.The content of(Nb+Ta)2O5 in granite pegmatite is 0.013 7％,which reaches the lowest boundary grade.Granitic pegmatite in the Zhangtan area has a great metallogenic potential for rare metal deposits.
王健
江西省地质局第八地质大队,江西上饶 334000
化学工程
花岗伟晶岩;地质特征;成矿潜力;樟潭地区
granite-pegmatite;geological characteristics;metallogenic potential;Zhangtan area
《能源研究与管理》 2024 (002)
26-30,36 / 6
江西省地质局资助项目"江西省广丰区石人底地区铀等关键性矿产调查评价"(2022HYN09)
10.16056/j.2096-7705.2024.02.005
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