河南省栾川县上房斑岩钼矿床地质地球化学特征及成因  

GEOCHEMISTRY AND METALLOGENESIS OF THE SHANGFANG PORPHYRY MOLYBDENUM DEPOSIT IN LUANCHUAN, HENAN

作　　者：徐兆文[1] 陆现彩[1] 杨荣勇[1] 解晓军 任启江[1] 

机构地区：[1]南京大学地球科学系,南京210093

出　　处：《地质与勘探》2000年第1期14-16,共3页Geology and Exploration

基　　金：国家自然科学基金!(编号 :490 70 10 1);南京大学内生金属成矿机制研究国家重点实验室资助项目

摘　　要：上房斑岩钼矿床与燕山期花岗斑岩有关。成矿流体研究表明包裹体均一温度介于100℃～383℃之间,成矿阶段温度为240℃～330℃;成矿流体盐度介于28.61wt%～36wt%NaCl之间,成矿阶段盐度为30.51wt%～34wt%NaCl;成矿流体中富Na、F而贫K、Cl。氢、氧同位素研究表明,δD为-90.50‰～-41.00‰,δ18O为9.45‰～13.04‰;稳定同位素值表明上房钼矿成矿物质早期以岩浆热液为主,晚期有大量雨水注入。The geochemistry of the Shangfang porphyry molybdenum deposit is characterised by homogeneous temperature of 100℃ to 383℃, mineralization temperature of 240℃ to 330℃, salinity of 28.61 to 36 (wt % NaCl), salinity of 30.51 to 34.00 (wt%NaCl) at the main ore-forming stages, high contents of Na, F and low contents of K, Cl in the ore-forming fluid. The isotopes feature δD ranging from -90.05‰ to 41.0‰ and δ 18 O ranging from 9.45‰ to 13.04‰. It is suggested that the ore-forming materials and fluid were originated from magmatic system, and meteoric water was involved at late stage.

关 键 词：斑岩钼矿床 地球化学特征 矿床成因 钼矿床 

分 类 号：P618.650.4[天文地球—矿床学]