西藏拉屋多金属矿床的成矿元素分带规律

 西藏拉屋铜铅锌多金属矿床的形成与该区花岗岩的形成密切相关，该矿床的成矿元素具有明显分带性。研究表明，该区成矿元素的分带现象，应是重熔岩浆原地结晶分异产生的成矿流体在向上运移过程中，其内的不同成矿元素在不同的温度－化学区间沉淀析出的结果，从而形成之下而上为Cu、Zn、Pb、Ag的规律性分带。

Metallogenic Zonation in Lawu Polymetallic Deposit in Tibet

The Lawu Cu Pb Zn polymetallic deposit in Tibet of China, which is considered with the formation closely related to that of the local granite, is characterized by legible metallogenic zonation. The primarily study show that the metallogenic zonation should be generated by the following process: Crystallization of in situ magma produces the hydrothermal fluids. Driven by pressure and temperature differences, the fluids move upward and during which, different metallogenic elements in liquids deposit in different temperature span with the sequence of Cu, Zn, Pb and Ag from the bottom upwards.