摘要
作者采用构造地球化学方法,对59#矿体分布区进行研究。通过R型聚类分析、因子分析结果圈定矿化元素组合异常。该异常分布在刺穿体构造的外缘,与59#矿体产出位置基本一致;同时出现(Bi-Cu)、(TFe-W-Mo-Cu-Bi)、(Zn-Cd-Cu-Ag-Pb-Bi-Mo)的异常叠加,指示叠加成矿作用的特点;根据异常特征和分布规律,推测成矿流体的运移方向、矿体产状,为深部找矿预测提供了重要依据。
The Yimen Fengshan copper deposit is a typical Yimen-type copper deposit which is located in the copper mineralization belt of the Kunyang rift valley,Yunnan Province,China. The deposit is evidently controlled by a diapiric structure,orebodies are located in cataclastic dolomites of the Lvzhijiang Formation. The paper researched the 59^# orebody area based on tectono-geochemistry. By R-cluster analysis and R-factor analysis,the autors got six and seven factors respectively,summed up the anomaly features and their regularities of distribution. Thereinto,the metallogenic elemental assemblage anomaly is located in the same position as 59^# orebody,appears at the margin of the diapiric structure; the presence of （Bi-Cu）,（TFe-W-Mo-Cu-Bi） and （Zn-Cd-Cu-Ag-Pb-Bi-Mo） ore-forming factors＇ anomaly superposition indicated that the deposit had undergone superimposed mineralization. The paper speculated ore fluids migrated from the diapiric structure to wall rocks,and ore occurrence by anomaly features and its regularities of distribution,the result plays an important role for the depth ore-finding prognosis.
出处
《大地构造与成矿学》
EI
CAS
CSCD
北大核心
2010年第2期233-238,共6页
Geotectonica et Metallogenia
基金
国家科技支撑项目(2006BAB01B09)
国土资源部危机矿山专项(20089943
200653098)
昆明理工大学创新团队项目(2009)资助
关键词
易门凤山铜矿
断裂构造地球化学
因子分析
成矿预测
Fengshan copper deposit
fault tectono-geochemistry
factor analysis
metallogenic prognosis
