引用本文：章伟.2008.江西浒坑钨矿含矿石英脉的地质特征及成矿构造演化[J].地质学报,82(11):1531-1539. zhangwei.2008.The Geological Features and Evolution of Metallogenic Tectonics of the Ore Bearing Quartz Veins at Hukeng Tungsten Deposit , Jiangxi Province[J].Acta Geologica Sinica,82(11):1531-1539.
Abstract:Hukeng tungsten deposit is a large scale tungsten deposit which locates at the Wugong Mountain in the west of Jiangxi Province. Ore bearing quartz veins are mainly at the inner contact zone of the rock body which are different from the topical five-layer model in the southern Jiangxi Province. Massive structure and banded structure appear widely in the ore bearing quartz veins. After detailed field work and microscope observation, we find out that the ore bearing massive quartz veins underwent ductile shear at different degree after they were formed, thus formed differentiated bands which have different components. There are neoformative foliation and lineation(stretching lineation) in the shear zone. The petrological study shows that banded ore belongs to mylonite, which has abundant microstructure feature of plastic deformation. Structural analysis reveals that most primary joints related to magmatic rocks are synchronogenic. The quartz veins which intruded into the joints underwent long-term and multi- tectonic movements, thereby formed complicated quartz veins and ore types. The evolution series of structure in the mining area are as follows: formation of the primary joints →filled by the quartz veins →ductile shear →filled by the quartz veins at second stage →formation of brittle fracture. The geodynamic setting of the ductile shear may be the later Magma Intrusion and the brittle fracture is related to the NS-trending stress field in this area.