四川冕宁稀土矿床黑色风化物中的稀土元素赋存状态研究  

STUDY ON THE COMBINING STATE OF RARE EARTH ELEMENTS IN THE BLACK WEATHERED MINERAL FROM MIANNING,SICHUAN PROVICE

作　　者：张萍[1] 蒋馥华[2] 卢寿慈[3] 

机构地区：[1]中国地质大学材料与化学工程学院,武汉430074 [2]武汉科技大学化工与环境资源学院,武汉430081 [3]北京科技大学资源工程学院,北京100083

出　　处：《矿物岩石》1999年第4期10-14,共5页Mineralogy and Petrology

基　　金：国家自然科学基金!(项目批准号59674021)

摘　　要：本文用现代的固体表面分析方法和连续选择性提取法对冕宁黑色风化物中稀土元素的赋存状态进行研究。在可交换离子相、易还原相、水成相和矿物结晶相四种稀土存在的形式中,易还原相和水成相是自然界矿物中新的稀土赋存状态。The black weathered mineral in Mianning orebed has been studied by modern analytical means of solid surface and the method of sequential selective extraction. The results show that there are four kinds of combining states of the REE in the black weathered mineral. They belong to four different geochemical phases:exchangeable ionic phase respectively, reducible phase, aqueous mineral phase and crystalline mineral phase. The REE reducible phase and aqueous mineral phase are two new combining state of REE in natural mineral. Formation of new phases is caused by the characteristic adsorption.

关 键 词：稀土元素 赋存状态 稀土元素矿床 黑色风化物 

分 类 号：P618.704[天文地球—矿床学] P618.702[天文地球—地质学]