西藏改则县扎多嘎尔穷勒铜金矿地质特征及找矿地质意义  

Geological Characteristics and Prospecting Significance ofZhadogarqiongle Copper-gold Deposit in Gaize County, Tibet

作　　者：邓金火 DENG Jinhuo(Basic Geological Survey Institute of Jiangxi Geological Survey Institute,330030,Nanchang,PRC;Nonferrous Geology and Mineral Exploration and Development Institute of Jiangxi,330030,Nanchang,PRC)

机构地区：[1]江西省地质调查勘查院基础地质调查所,南昌330030 [2]江西有色地质矿产勘查开发院,南昌330030

出　　处：《江西科学》2024年第4期784-788,共5页Jiangxi Science

基　　金：中国地质调查局地质调查项目(12120113037600)。

摘　　要：以西藏康托地区矿产远景调查成果为基础,论述了改则县扎多嘎尔穷勒铜金矿的地质特征,并对其成因、找矿意义等进行了初步讨论。成矿岩体是一个以花岗闪长斑岩为主的杂岩体,主要岩性为花岗闪长斑岩、闪长玢岩、辉绿玢岩。成矿围岩主要为岩屑砂岩、白云质灰岩。控矿因素主要有地层、构造、岩浆岩。铜金矿成因属岩浆热液型。含钙质蚀变碎屑岩是形成本矿床的围岩,而花岗闪长岩为成矿母岩,断裂构造活动是含矿气水溶液运移、沉淀的场所,岩浆-热液活动是成矿的必要条件。该铜金矿的发现为在班公湖-怒江结合带两侧寻找铜金矿提供了新的线索。The paper discusses the geological characteristics of the zhadogarqiongle copper-gold de-posit in Gaize county based on the results of a prospective survey of mineral resources in the Georg Cantor area of Tibet.It also provides a preliminary discussion on the genesis and exploration signifi-cance of the mine.The ore-forming body is a complex mainly composed of granodiorite porphyry,diorite porphyry and diabase porphyry.The host rocks are mainly lithic sandstone and dolomite lime-stone.The main ore-controlling factors are stratum,structure and magmatic rock.The genesis of the copper-gold deposit belongs to magmatic hydrothermal type.Calcareous altered clastic rock serves as he wall rock of the deposit,while the granodiorite is the parent rock of the ore-forming process.Fracture structures facilitate the migration and precipitation of ore-bearing hydrothermal so-lutions,and magmatic-hydrothermal activity is an essential prerequisite for ore formation.The dis-covery of the copper-gold deposit provides a new clue for the exploration of copper-gold deposits on both sides of the Pangong Lake-salween River Junction.

关 键 词：岩浆热液型 铜金矿 班公湖-怒江成矿带 找矿潜力 西藏 

分 类 号：P618.51[天文地球—矿床学]