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马攸木金矿床是西藏最近发现的首例大型独立岩金矿床。该文着重介绍了马攸木岩金矿床的矿体形态、矿石结构构造和矿石物质组分、金矿物的一般特征,并将马攸木金矿床的形成分为热液期、风化期和沉积期,其中与岩金矿形成有关的热液期至少可分为三个矿化阶段。论述了岩金矿床的流体包裹体特征、S和Pb同位素特征及Ar同位素年龄。初步认为该矿床属与地热活动有关的浅成中低温热液矿床。
The Ma Yumu gold deposit is the first large-scale independent rock gold deposit recently discovered in Tibet. This paper mainly introduces the ore body morphology, ore structure, ore composition and the general characteristics of gold minerals in the Ma Youshiyan gold deposit. The formation of the Ma Yumu gold deposit is divided into the hydrothermal period, weathering period and sedimentary period. Among them, The hydrothermal period related to the formation of rock gold deposits can be divided into at least three mineralization stages. The characteristics of fluid inclusions, S and Pb isotopic characteristics and Ar isotopic ages of rock gold deposits are discussed. It is preliminarily considered that the deposit belongs to the epithermal deposit related to geothermal activity.