Au—Se矿石建造——层控金矿床的一种新类型

Au-Se ore formation——a new type of stratabound gold deposit

西秦岭南亚带川甘交界地带的拉尔玛层控金矿床,是迄今为止我国仅见的与海底喷流作用有关的金矿床.矿床中除金(Au)外,硒(Se)的含量也达到了伴生硒矿床的工业利用要求.在层控金矿床中,有关Au—Se含金建造矿床,国内外尚少报道.因此,作者认为,拉尔玛Au—Se矿石建造矿床是层控金矿床中的一种新的含金建造类型.

Siuated in the juncture of Sichuan and Gansu Province in south subzone of western Qinling,Larma stratabound gold deposit is such a gold deposit which is associated with submarine exhalative-sedimentation and never seen before in China. Besides containing gold,this gold deposit contains selenium as much as to meet the demand of commercial use of associaled Se deposit. However, few report related to Au-Se ore formation is found in literatures home and abroad, so the authors of this paper believe that Larma Au-Se ore formation is a new type of Au formation in stratabound gold deposit.