长江中下游安徽段离子吸附型稀土矿成矿条件分析  

On Metallogenic Conditions of Ion-Absorbed REE Deposits in Anhui Section of the Middle-Lower Yangtze River Valley

作　　者：徐波 黄旭 蔡晓兵[1,2] 王克友 XU Bo;HUANG Xu;CAI Xiao-bing;WANG Ke-you(Geological Survey of Anhui Province,Hefei 230001;Anhui Institute of Geological Sciences,Hefei 230001)

机构地区：[1]安徽省地质调查院,合肥230001 [2]安徽省地质科学研究所,合肥233001

出　　处：《四川地质学报》2021年第2期209-214,共6页Acta Geologica Sichuan

基　　金：安徽省公益性地质工作项目(2011-g-20)。

摘　　要：本文通过对长江中下游地区安徽段广泛出露的花岗岩类风化壳离子吸附型稀土矿含矿性进行系统的取样分析,发现毛坦岩体、花园巩岩体、花山岩体、黄梅尖岩体风化壳存在稀土矿化,矿化体主要集中在岩体全风化层。结合前人在同位素年代学、矿物学、岩石地球化学等方面取得的研究成果以及离子吸附型稀土矿成矿理论,认为区内燕山晚期A型花岗岩风化壳发育区域具有较好的离子吸附型稀土矿成矿潜力。Systematic sampling and analysis for granite weathered crust in Anhui section of the Middle-Lower Yangtze River Valley indicate that REE mineralization occurs in the weathering crust of the Maotan,Huayuangong,Huashan and Huangmeijian plutons.According to ion-absorbed REE mineralization theory combined with the previous research results in isotopic chronology,mineralogy and geochemistry,the ore-forming potential of ion-adsorbed REE deposits is good in this area.

关 键 词：离子吸附型稀土矿 花岗岩 成矿条件 长江中下游 

分 类 号：P618.7[天文地球—矿床学]