俄罗斯叶尔果茹金多金属矿床地质特征及成因探讨  

Geological characteristics of Yerguoru Au-polymetallic deposit in Russia and the genetic discussion

作　　者：石文学[1] 

机构地区：[1]天津华北地质勘查局地质研究所,天津300171

出　　处：《地质找矿论丛》2017年第1期142-151,共10页Contributions to Geology and Mineral Resources Research

摘　　要：俄罗斯叶尔果茹金多金属矿床位于西伯利亚克拉通南缘隆起带的东萨彦—比留萨地垒中,含矿地层为古元古界阿尔哈德尔岩组第一岩段,金多金属矿体产于矽卡岩化带和多组韧性-脆性断裂破碎带内。矿区共分为7个矿段,现已圈出50余条矿体,主要产于1号—4号矿段和7号矿段,矿化分为产于矽卡岩化带中的缓倾斜似层状矿化和产于构造破碎蚀变岩中的陡倾斜脉状矿化,两种矿化在空间上多为交错关系,并在矿物组合、矿石构造等方面有明显区别;矿化元素主要为Au、Ag、Pb和Zn,伴生丰富的Cd、Cu、Co、Bi和S等元素可回收利用;叶尔果茹矿区的成矿作用受到地层层位和特定岩性、岩浆-火山作用、褶皱和韧-脆性断裂作用的共同控制,矿床属于与泥盆纪岩浆(火山)作用有关的中低温热液交代-充填型金多金属矿床。由于该矿区研究程度较低,勘查深度较浅,其深部及外围还有较大的找矿空间。Yerguoru Au-polymetallic deposit in Russia is located in the first Member of Palaeo-proterozoic Arhader formation of Dongsayan-Biliusa horst at the uplift belt in southern margin of Siberia craton.Ore bodies occur generally in skarnized zones and multi-group ductile-brittle shear fractural zones.The deposit is divided into 7domains.About 50 ore bodies have been located occurring mainly in domain 1-4and 7.There are two kinds of mineralization,that is the gently dipping layeroid mineralization in the skarnized zone and the steeply dipping mineralization in the altered cataclastic rock zones.Spatially the two kinds of mineralization cut with each other and are distinguished by mineral assemblage and ore structure.Au,Ag,Pb and Zn are the ore elements and by product elements Cd,Cu,Co,Bi S and so on.The deposit is multiply controlled by specific lithology,magma-volcanism,folding and ductile-brittle shear fracturing.It is a meso-epithermal metasomatic-filling Au-polymetallic deposit related to Early Devonian magmatism（volcanism）.No more research and exploration works have been done in the area thus it is potential to depth and the surroundings.

关 键 词：叶尔果茹金多金属矿 矿床地质特征 矽卡岩化带 破碎-糜棱岩化带 岩浆热液型矿床 俄罗斯 

分 类 号：P613[天文地球—矿床学] P618.5[天文地球—地质学]