北秦岭西段六丈山含铷花岗岩体及铷矿化体特征  

CHARACTERISTICS OF Rb MINERALIZATION BODIES AND GRANITE IN LIUZHANSHAN OF WESTERN SECTION OF NORTH QINLING

作　　者：胡永兴[1] 张红斌[1] 宿虎[1] 

机构地区：[1]甘肃省地质调查院,甘肃兰州730000

出　　处：《甘肃地质》2015年第2期51-56,共6页Gansu Geology

摘　　要：产于北秦岭西段六丈山一带的印支期花岗岩体中富含铷等稀有金属,研究其特征对西秦岭地区寻找稀有金属矿产有较大的指导作用。该岩体由花岗斑岩、中—细粒黑云二长花岗岩、细粒二长花岗岩等组成,属高钾钙碱性系列,为"S"型花岗岩,其形成与大陆的造陆抬升有关,产于相对成熟的大陆环境下。含铷花岗岩体经历了4次较大的侵入期次,矿化体的形成与岩浆不断侵位阶段分异萃取有关。Native to north Liuzhangshan in mountain area of western rock rich in rubidium and other rare metals, study its characteristics for QinLing indo-chinese epoch granite rare metal mineral in west QinLing mountain area have a bigger role in guiding. In the rock mass by the granite porphyry, dark clouds - fine grained monzonitic granite, fine grained monzonitic granite and so on, is high in potassium calc-alkaline series, for the ＂S＂ type granite, its formation is associated with the epeirogenic uplift of the mainland, which are found in relatively mature continental environment. Including rubidium granite rock mass has experienced four times larger intrusive period of time, the formation of the mineralized bodies related to magmatic emplacement constantly stage differentiation extraction.

关 键 词：北秦岭 印支期花岗岩 铷矿化体 

分 类 号：P618.77[天文地球—矿床学]