CAJ | 학술논문

徐家沟铜矿床位于勉(县)-略(阳)-阳(平关)铜多金属矿化集中区中部的铜厂矿田西北部,矿体产于中上元古界郭家沟组中的片理化细碧岩带內,已圈定铜矿体13条,多为盲矿体.矿石主要自然类型为黄铁矿化-磁黄铁矿化-片理化细碧岩型,属于火山沉积-构造、岩浆改造型铜矿床.郭家沟组中的细碧岩为铜的主要矿源岩,细碧岩中的近东西向构造片理化带为矿质富集提供了富集通道和空间.铜厂闪长岩体为成矿提供了动力、热源和主要硫源,成矿受上述地层岩性、构造、岩浆岩因素联合控制.
서가구동광상위우면(현)-략(양)-양(평관)동다금속광화집중구중부적동엄광전서북부,광체산우중상원고계곽가구조중적편이화세벽암대내,이권정동광체13조,다위맹광체.광석주요자연류형위황철광화-자황철광화-편이화세벽암형,속우화산침적-구조、암장개조형동광상.곽가구조중적세벽암위동적주요광원암,세벽암중적근동서향구조편이화대위광질부집제공료부집통도화공간.동엄섬장암체위성광제공료동력、열원화주요류원,성광수상술지층암성、구조、암장암인소연합공제.
Xujiagou copper deposit lies in the northwest of Tongchang ore field in the central Mianxian-Lueyang-Yangpingguan copper polymetallic mineralization-intensive area. The ore body is hosted within the schistose spilite zone of middle-upper Proterozoic, and 13 orebodies have been delineated, but most of orebodies are blind. The mineralization consists mainly of pyritization-pyrrhotitization-schistositied spilite, indicating a volcanic sedimentary-tectonics and magmatic reformation type copper deposit. The spilite of Guojiagou Formation is the source of copper mineralization. The nearly EW-striking schistose structure zone in spilite provides channels and space for enrichment of ore-forming material. The Tongchang diorite provides mineralization with dynamics and thermal source, especially sulfur. The formation of the Xujiagou copper deposit is controlled jointly by above-mentioned stratum, structure and intrusive rock.