新疆西昆仑小同钼矿地质特征及找矿意义  

GEOLOGICAL CHARACTERS AND PROSPECTING SIGNIFICACE OF XIAOTONGXIANG MOLYBDENUM DEPOSIT IN WESTERN KUNLUN,XINJIANG

作　　者：刘建平[1,2] 王核[1] 任广利[1,2] 

机构地区：[1]中国科学院广州地球化学研究所,广东广州510640 [2]中国科学院研究生院,北京100049

出　　处：《新疆地质》2010年第1期38-42,共5页Xinjiang Geology

基　　金：中国科学院创新重要方向性项目(编号:KZCX2-YW-107-03);国家十一五科技支撑项目(编号:2006BAB07B01-04)共同资助

摘　　要：位于西昆仑岩浆弧带的小同钼矿产于花岗闪长岩体边部.矿区地层为中元古界库浪那古岩群黑云斜长片岩,蚀变类型主要有钾化、绿泥石化、矽卡岩化,呈带状分布.据目前工程揭露,发现一长260m,宽5～50m的矿化带,总体产状为70°∠30°.矿化类型包括产于岩体边缘相的浸染-星点状矿化和产于矽卡岩化带中的团块-斑块状矿化.综合矿区地质和矿化特征,初步认为小同钼矿为斑岩-矽卡岩钼矿床.The Xiaotong molybdenum deposit occurs the edge of a granodiorite body in the western Kunlun magma arc belt, in Xinjiang. The detail field works show that the strata is biotite-plagioclase-shists of Kulangnagu group of the middle proterozoic era,the intrusion is granodiorite, and mineralization alteration zones include K-alferation, chloritization and skarnization. The mineralization belts is 260m of length and 5-50m of width by exploration engineering, and occurrence of 70°∠30° Two mineralization types have found, one is disseminated-pot-like ore in the marginal face of rock body, the other is crumbly-plaque type ore in the skarn belt. This paper regards the Xiaotong molybdnume deposit as a porphyry-skarn composite type deposit by the geological and mineralization characters, and a good case of porphyry deposits for exploration and research.

关 键 词：西昆仑 小同 斑岩-矽卡岩型钼矿 地质特征 

分 类 号：P618.65[天文地球—矿床学] P618.102[天文地球—地质学]