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Analysis of geochemical characteristics of Xiaoshui uranium deposit in Xiazhuang ore-field, Northern Guangdong Province
Author(s): 
Pages: 271-277
Year: Issue:  4
Journal: Resources Survey & Environment

Keyword:  稀土元素微量元素地幔流体交点型铀矿床;
Abstract: 粤北小水矿床是下庄矿田典型的交点型铀矿床.通过对矿床内发育的花岗岩、辉绿岩及铀矿石采样分析,发现小水矿床矿石具有轻稀土富集的稀土元素特征和富集大离子亲石元素Rb、Th的微量元素特征.与辉绿岩的相应特征十分吻合,与花岗岩的相应特征差异很大,推测其成矿物质来源于深部地幔流体(富含U、F、C02),且交点型矿石的形成很有可能伴有幔源成矿流体对与花岗岩有关的早期红化矿石的叠加改造作用.
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