四川白玉连龙锡银多金属矿床地质特征及成因探讨

An Approach to the Geological Features and Genesis of the Lianlong Sn-Ag Polymetallic Deposit in Baiyu, Sichuan

连龙锡银多金属矿床位于义敦岛弧带,是造山后岩浆作用形成的含锡花岗岩带内一个重要中型矿床,共(伴)生有Cu、Pb、Zn等元素,并含有大量Bi矿物。该矿床赋存于"A"型花岗岩与富泥质的曲嘎寺组灰岩接触带,矿床类型为接触交代型多金属矿床。

The Lianlong Sn-Ag polymetallic deposit is located in the Yidtm island arc belt. This is an important medium-sized deposit associated with Cu, Pb, Zn and Bi in the stanniferous granite belt formed by the post-orogenic magmatism. The deposit is a contact metasomatic one which is confined to contact between the A-type granite and politic-rich limestone of the Qugasi Formation.