摘要
攀西地区以喜马拉雅期稀土碱性杂岩的控岩控矿构造裂隙 ,霓石英碱正长岩和霓辉正长 (斑 )岩高位小侵入体 ,碱性伟晶岩、霓辉萤石锶重晶石岩、方解石碳酸岩 (矿 )脉构成了攀西地区三位一体的稀土成矿独特模式。区内矿床类型新 ,稀土品位高 ,主要稀土工业矿物氟碳铈矿占矿石中REO品位的 76 %～ 95% ,且粒度粗大、易选 ;氟碳铈矿REO含量高 6 2 30 %～ 77 6 6 %。黑色矿泥富含Eu、Y等次生稀土。
Metallogenic model for RE mineral deposits represented by Maoniuping and Dalucao deposits in Pinzhihua Xichang Region implies three in one consisting of ore control fissure in REE rich Himalayan alkaline complex,high level minor intrusion of aegirine nordmarkite and aegirine syenite porphyry,and alkali pegmatite,aegirine fluorite strontium baritite and calcite carbonitite vein These RE mineral deposits are characterized by high grade ore,predomination of bastnaesite(76～95%)in REO,coarse size and free milling ore The bastnaesite contains 62 30～77 66% REO Black ore sludge is rich in Eu,Y
出处
《四川地质学报》
2000年第1期50-56,共7页
Acta Geologica Sichuan
关键词
稀土元素
地质特征
氟碳铈矿
稀土矿床
geological feature,REE,bastnaesite,Panzhihua-Xichang region
