西藏山南努日铜钼钨矿床地质特征及成因研究  

The Study about the Geological Characteristics and Genesis of Nuri Cu-Mo-Wu deposits,Southern Tibet

作　　者：陈莉莉[1] 钟康惠[1] 刘清双[1] 姚丹[1] 宋梦莹[1] 

机构地区：[1]成都理工大学地球科学学院,四川成都610059

出　　处：《四川有色金属》2014年第1期40-43,47,共5页Sichuan Nonferrous Metals

基　　金：西藏自治区矿产资源潜力评价项目(1212010813025)

摘　　要：日铜钼钨矿床位于亚热-达多山原火山盆地,矿区出露的地层为下白垩统比马组(K1b),岩性主要为矽卡岩,灰岩及大理岩,其中比马组四段为赋矿地层。出露的岩浆岩主要为晚白垩到古近纪侵入岩,它提供深源含矿流体和热源。矿区发育复式背斜和层间破碎带,为含矿流体上移提供了通道,并控制了矿体的分布。通过对区域地质背景的介绍,结合矿床地质特征和成矿时代的研究,初步分析了努日铜钼钨矿床的成因,建立了成矿模式,认为该矿床为矽卡岩型矿床。Nuri Cu-Mo-Wu deposits is located in Yare-Daduo mountain original volcanic basin, the strata exposed in the main mining area is the Bi ma group of the Lower Cretaceous （K^b）, the lithology mainly are skarn, limestone and marble, and that the fourth segment of the Bi ma group（Klb4） is the ore-bearing strata. The magmatic rock exposed is mainly intrusive rock of the Lower Cretaceous and Paleogene, which is the source of deep Ore- forming fluid and heat. Anticlinoria and interformational fracture zone is distributed extensively at the mine, which provide access for metallogenetic fluid and control the distribution of ore body. Anticlinal flanks develop skarn, and interformational fracture zone controlled the distribution of it. With the introduction of the regional geological setting and the study of geological characteristics and mineralogenetic epoch, the author has made a preliminary analysis of the causes of Nuri Cu-Mo-Wu deposits, and established the metallogenie model. Therefore,the author concludes that this deposit is a skarn type deposit.

关 键 词：努日铜钼钨矿 地质特征 矽卡岩型 成矿模式 矿床成因 

分 类 号：P618[天文地球—矿床学]