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江西德兴铜厂矿区内出露的地层属震旦亚界(经地科院Rb—Sr法测定,绝对年龄为14.01亿年),系由泥质、粉砂质及火山凝灰质沉积经区域变质而成的浅变质岩系,由千枚岩和变质沉凝灰岩的互层所组成.矿区内岩浆活动频繁,与德兴铜厂斑岩铜矿床有成因联系者属燕山运动早期(经长春地院K—Ar法测定,绝对年龄为170百万年,属中侏罗世),形成了中酸性深源浅成小型侵入体,其主体为花岗闪长斑岩,其余均为成矿作用中、后期的脉岩.
The strata exposed in Jiangxi Dexing Copper Mine are belonged to Sinian sub-region (determined by the Rb-Sr method of the Chinese Academy of Sciences, with an absolute age of 1.401 billion years). It is composed of muddy, silty, and volcanic tuff deposited through the region The metamorphic shallow metamorphic rocks consist of interbeds of phyllite and metamorphic sedimentary tuff, and the magmatic activity in the mining area is frequent, which is related to the genesis relationship with the porphyry copper deposit in Dexing Copper Plant in the early stage of Yanshan Movement Archean K-Ar method, with an absolute age of 170 million years, belongs to the Middle Jurassic), a medium-acidic deep-source shallow intrusive body formed with granodiorite porphyry and the rest being metallogenic Role in the late vein.