西藏程巴钼矿床地质特征与成因分析  

Geology Characteristic and Genesis of Chengba Porphyry Mo Deposit in Tibet

作　　者：汪东[1] 钟康惠[1,2] 刘堂[1] 张文磊[1] 

机构地区：[1]成都理工大学地球科学学院,四川成都610059 [2]构造成矿成藏国土资源部重点实验室,四川成都610059

出　　处：《四川建材》2016年第5期170-172,共3页Sichuan Building Materials

基　　金：西藏自治区矿产资源潜力评价(1212010813025);冈底斯成矿带成矿规律研究(1212011086057)

摘　　要：程巴斑岩型铜钼矿床位于雅江结合带边缘、拉达克-南冈底斯-下察隅岩浆弧带上。矿区主要出露上三叠统姐德秀组(T_3j)、下白垩统比马组第四段(K_1b^4)、下白垩统比马组第五段(K_1b^5)及古新统罗布莎群(E_1b)。岩浆活动强烈,岩石类型主要为古新世石英闪长岩(δοE_1)、始新世二长花岗岩(ηγE_2)、渐新世正长花岗岩(ζγE_3)。岩浆活动强烈,岩石类型主要为石英闪长岩、二长花岗岩、正长花岗岩,正长花岗岩为赋矿岩体。结合区域地质背景、矿区地质特征、矿体特征及成矿时代,初步分析了程巴钼矿床的类型和矿床成因。The Chengba porphyry Mo deposit is located in the band edge of Yajiang, Ladakh - South Gangdise magmatic arc belt under Chayu. The strata is mainly exposed in the mining area in iedexiu group of the Upper Triassic, Bima group fourth of the lower Cretaceous, Bima group fifth of the lower cretaceous and the Luobusha congglomerates in Ploene. Intense magmatism, rock types are mainly Quartz Diorite, Monzonitic Granit and syenogranite, syenogranite is the ore-bearing rock. Through comprehensive regional geological background, geological characteristics, ore body characteristics and metallogenic epoch, this paper preliminarily analyzed the types and genesis of, Chengba Mo deposit.

关 键 词：程巴钼矿 斑岩型 地质特征 

分 类 号：P618.65[天文地球—矿床学]