摘要
通过对潘家沟银矿成矿地质背景、次火山岩、矿床地质特征的研究，认为该矿床为一典型的次火山热液型矿床。与成矿有关的次火山岩为陆壳改造型成因，系基底岩石部分熔融形成。成矿热液主要是由形成次火山岩的岩浆在深部分异演化形成的富氟流体组成，与次火山岩浆相伴上升。
On the basis of the analysis of geological setting, subvolcanic rock and the characteristics of the deposit,the Panjiagou silver deposit is classified as a typical subvolcanic hydrothermal one. The subvolcanic rock associated with silver metallization is of continental crust origin, resulted from partial melting of basement rocks. The ore-forming hydrothermal fluid ,which is rich in F, originated from the differentiation of subvolcanic magmas .The hydrothermal fluid ascended with subvolcanic magmas and forming the silver deposit in interlayer fracture zones .The comparison with other volcanic-subvolcanic hydrothermal deposits has been made in this paper.
出处
《矿产勘查》
1997年第2期12-18,共7页
Mineral Exploration
关键词
银矿
次火山热液
壳源
富氟流体
silver deposit
subvolcanic hydrothermal
fluid curst origin
F rich fluid
