中秦岭正河金矿床控矿构造特征及其成矿作用分析  

DISCUSSON ON CHARACTRISTICS OF ORE-CONTROLLING STRUCTURES AND THE MINERALIZATION IN ZHENGHE GOLD DEPOSIT,MIDDLE QINLING BELT

作　　者：韩俊民 王力群 张启 汪道东 

机构地区：[1]西北有色地质勘查局712总队,咸阳712000

出　　处：《陕西地质》2011年第1期16-22,共7页Geology of Shaanxi

摘　　要：本文讨论了中秦岭正河金矿床的成矿地质特征,结合成矿流体物理化学条件、构造控矿作用,提出山阳—凤镇深大断裂是矿床的导矿构造,蚀变矿化带受控于次级背斜构造核部的轴面劈理化带。其成矿作用经历了热水沉积—变质变形—构造热液叠加的构造演化过程。认为蚀变岩型金矿主要分布于金银沟至庙沟一带,矿区11~15线以及31线是寻找石英脉型金矿的有利地段。According to analysis on ore-controlling characteristics of structures,sources of metallogenic material and gold mineralization,this paper suggested that the mineralized belts be controlled by anticlines in Zhenghe gold area and Shanyang-Fengzhen syngenetic sedimentary Fault is ore-conduit structure for deposit.Sulfur source is characterized by mixtures from mantle and crust,which indicated that gold mineralization experienced hydrothermal sedimentation,deformal metamorphosis and tectonic superimposition stage.Alteration rock-type gold deposits are mainly distributed in the area from Jinyingou to Miaogou area,and favorable zones for prospecting quartz-vein type gold is present in between eyploration lines 31 and 11～15.

关 键 词：金矿床 控矿构造 蚀变矿化带 成矿作用 正河 

分 类 号：P618.510.2[天文地球—矿床学]