摘要
通过对尤黑木矿区钢铁多金属矿床的稀土元素组成特征的研究，认为矿床中Ａ矿带磁铁矿石来源于火山活动，形成于火山堆（沉）积作用过程中；黑矿型块状硫化物矿带（Ｂ、Ｃ．Ｄ矿带）中，多金属矿石来源于海水（占２０％）和岩浆水（占３０％），而重晶石岩和磁铁石英岩的形成则基本上是海水的贡献。在整个康定岩群内可以应用长英质火山岩稀土元素分布型式平缓和明显负Ｅｕ异常的特点来优选勘查靶区。
REE geochemistry of Youheimu Fe-polymetallic deposit indicates that ore material in ore zone A is derived from volcanic activity, water of ore fluid in ore zones B,C and D was derived from sea water and magmatic water,while barite and mangnetite quartzite were attributed to sea water.Flat chondrite-normalized REE pattern and negative Eu anomaly of felsic volcanic rock may be used for choose prospecting target in the Kangding Group.
出处
《四川地质学报》
1996年第3期236-243,共8页
Acta Geologica Sichuan
关键词
尤黑木矿区
铜铁多金属矿床
稀土元素
矿质来源
靶区
Youheimu mineral district, Fe-Polymetallic deposit, REE, ore material source,target
