平泉县碾子沟—洛金洼金矿床蚀变围岩初步研究  

A preliminary study on altered wallrocks at Nianzigou Luojingwa gold deposit in Pingquan County

作　　者：别风雷[1] 徐九华[2] 

机构地区：[1]中国地质大学 [2]北京科技大学

出　　处：《黄金》2000年第2期1-5,共5页Gold

基　　金：北京科技大学资助

摘　　要：平泉县碾子沟—洛金洼金矿床赋存于太古界上迁西群变质岩系和石英二长斑岩、花岗闪长斑岩及闪长玢岩等岩浆侵入体中。本文从微量元素地球化学活动性的角度，并应用聚类分析和因子分析，研究了该矿床蚀变围岩的地球化学特征，探讨了蚀变与矿化的关系，指明了成矿元素的来源，为找矿提供了一定依据。Nianzigou Luojingwa gold deposit,located in north east Hebei Province,is situated in the north China platform.The gold deposit is a gold polymetallic sulfide deposit emplaced in the faults striking about south to north within the Archean metamorphic strata and magmatic intrusion massif. The wallrocks surrounding ore are mainly biotite plagioclase gneiss,biotite hornblende plagioclase gneiss,granodrite and diorite porphyrite ,and quartz monzonite porphyry at Nianzigou area.From the angle of geochemical activity of minor elements,this paper,by using cluster and factor analyses,makes a study of geochemical feature of the altered wall rocks of this deposit and an investigation of the relation between alteration and mineralzation .It points out the source of mineralization elements which provides a basis of ore prospecting.

关 键 词：围岩蚀变 微量元素 矿化作用 聚类分析 金矿床 

分 类 号：P618.51[天文地球—矿床学]