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.
出处
《陕西地质》
2011年第1期16-22,共7页
Geology of Shaanxi
关键词
金矿床
控矿构造
蚀变矿化带
成矿作用
正河
gold deposit
ore-controlling structures
mineralized belt
mineralization
Zhenghe
