个旧锡矿高松矿田节理发育特征与成矿分析

根据高松矿田不同中段节理系统的实地观测,通过对岩石节理特征、性质、方位的综合分析,探讨了节理系统发育的特征,发现该区三个方位岩石节理优势组:290°～345°∠60°～85°,110°～160°∠40°～75°,220°～250°∠40°～65°。通过对各优势节理组不同方位含矿节理系统采样,测试分析主要成矿元素Cu、Pb、Sn、Ag、As、Mn,讨论节理发育特征与成矿的关系,认为第一组节理与成矿关系最为密切,第二组次之,较好反映了不同节理组间的成矿差异。

Analysis on the relationships between joint distribution and mineralization characteristics in Gaosong ore field, Gejiu tin deposit

Based on the detailed field investigation at different levels in Gaosong Ore Field,rock joints characteristics and orientations are analyzed.The joint system development characteristics are explored.It is found that there are three types of dominant joint sets:the first set is 290°～345°∠60°～85°,the second set is 110°～160°∠40°～75°,and the third set is 220°～250°∠40°～65°.Using the ore samples systematically obtained from different orientation-dominant mineralized joint sets,the main ore-forming elements Cu,Pb,Sn,Ag,As and Mn are analyzed.According to the analyzed results,the relationship between joints distribution characteristics and mineralization are elaborated.It shows mineralize difference among different joint sets:the first group of dominant joint sets is most relative to the mineralization,and the mineralization of the second group is a little poor.