南城徐坊金矿成矿条件及成生机理  

THE ORE-FORMING CONDITIONS AND GENETIC MACHANISM OF XUFANG GOLD DEPOSIT IN NANCHENG COUNTY,JIANGXI

作　　者：熊长林[1] 

机构地区：[1]江西地矿局912大队

出　　处：《江西地质》1994年第1期21-25,共5页Jiangxi Geology

摘　　要：本文通过对南城徐坊金矿成矿条件的分析，总结了该金矿的成生机理。认为该金矿的主要控制因素是金矿源层、韧性剪切活动和断裂混合岩化作用，成矿物质主要来自震旦系金矿源层；矿化具有多期多阶段特征，在区域混合岩化作用过程中，金得到一定程度的活化迁移富集，但工业矿化主要发生在韧性剪切活动和断裂混合岩化作用阶段。Through an analysis of the ore-forming conditions of gold depositin Nancheng,the genetic mechanism of gold deposit was summarrized inthis paper. It is believed that the major controlling factors of thedeposit depend on the gold source bed, ductile shear activity and faul-ted migmatization. The ore-forming materials were mainly derived fromthe Sinian gold source bed. The mineralization is characterized by themulti-period and multi-stage. In the process of regional migmatization, thegold took place activation, replacement and richment in the specific deg-ree. But the industrial mineralization mainly took place in the stage ofductile shear activity and faulted migmatization.

关 键 词：成矿条件 金矿源层 韧性剪切带 金矿床 成生机理 

分 类 号：P618.510.5[天文地球—矿床学]