甘南以地南矿区德乌鲁岩体接触带多金属矿地质特征及成因初探

Geological characteristics and genesis of polymetallic deposits in the contact zone of Dewulu rock body in the mining area south of Gannan

以地南铜金矿床为SN向破碎蚀变岩型金矿床,勘查过程中发现一种新的多金属矿石类型-角岩化石英岩质砾岩型金铜矿。目前认为这种矿属接触带型金多金属矿,其成矿机理与岩体侵位时含矿热液贯入围岩形成浸染状金多金属矿有关。

Yidinan copper gold deposit is a SN trending broken altered rock type gold deposit. A new type of polymetallic ore, brecciated quartzitic conglomerate type gold copper deposit, was discovered in the exploration process. At present, it is considered that this kind of deposit belongs to contact zone type gold polymetallic deposit, and its metallogenic mechanism is related to the disseminated gold polymetallic deposit formed when ore bearing hydrothermal solution penetrated into the surrounding rock when the rock mass was emplaced.