云南省香格里拉桑都格勒钼矿地质特征及成因分析

The Geological Feature and Genesis a Analysis of Sangdugle Molybdenum Deposit in Shangri-La,Yunnan

香格里拉桑都格勒钼矿位于甘孜-理塘结合带西侧德格-中甸陆块东缘,印支期义敦-中甸岛弧带南段。矿床受燕山壳型花岗岩控制,主要产于岩体内或内接触带上。受构造活动影响,矿体与后期断层、石英脉和含矿热液作用关系极为密切,含矿热液沿破碎带上升过程中,产生热变质及交代蚀变。因此,拉桑都格勒钼矿床属于燕山期黑云母二长花岗岩有关的热液脉状钨钼多金属矿床。

Sangdugle molybdenum deposit in Shangri-La is located in the east margin of dege Zhongdian block on the west side of Ganzi Litang junction zone,and the south section of Yidun Zhongdian island arc zone in Indosinian period.The deposit is controlled by Yanshan crust type granite and mainly originate in the rock mass or internal contact zone.Influenced by structure activity,the ore body is closely related to the later faults,quartz vein and ore-bearing hydrothermal.During the process of ore-bearing hydrothermal rising along the fracture zone,It produces thermal metamorphism and metasomatic alteration.Therefore,the sangdugle molybdenum deposit is belongs to the hydrothermal vein type tungsten molybdenum polymetallic deposit related to the Yanshanian biotite adamellite.