陕西南秦岭东阳大型钨矿床地质特征及成因

Geological Characteristics and Genesis of the Tōyōlarge-scale Tungsten Deposit in South Qinling,Shaanxi Province

东阳大型钨矿的位置为陕西南秦岭,当地为多金属成矿带,其矿体被背斜构造和派生的关联构造所影响,北北东向横张节理、东西向背斜褶皱构造彼此交汇,构成了丰富的钨石英脉带地段。这一矿体的形成,和燕山期中酸性侵入体之间关联密切,当地特征呈现出“一矿三型”的特征。对陕西南秦岭的钨矿勘察工作,具有重要的借鉴意义,同时,了解本处矿床的地质特征,分析其成因,对“南坞北扩”理论的发展及后续的矿藏开发均有借鉴价值。

The location of the large-scale tungsten deposit in Tōyōis south Qin Mountains,Shaanxi Province,where the ore bodies are affected by the related structures of the anticline and the derived structures,and the north-northeast transverse joints and the east-west anticline folds meet each other,forming a rich tungsten-quartz vein section.The formation of this ore body is closely related to the intermediate-acid intrusive bodies of the Yan Mountains period,and the local characteristics show the characteristics of“One mine and three types”.It is of great significance to the exploration of the tungsten deposit in south Qin Mountains,Shaanxi Province.At the same time,it is of great value to the development of the theory of“Southdock-north expansion”and the subsequent development of the deposit.