Helium isotopic study on mantle degassing in the Altay orogenic zone,China  

作　　者：Denghong Wang Yuchuan Chen Zhigang Xu Hongyang Li Tiande Li 

机构地区：[1]Chinese Acad Geol Sci, Inst Mineral Deposits, Beijing 100037, Peoples R China [2]Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China [3]Xinjiang Inst Geol & Mineral Resources, Urumqi, Peoples R China

出　　处：《Chinese Science Bulletin》1999年第11期1050-1053,共4页

摘　　要：New helium isotopic data of ores and rocks from the Altay orogenic zone, Xinjiang,China are reported, which show that the pegmatites from No. 3 vein in the Keketuohai area have high ³He/⁴He ratios up to 1 .795 x 10^-6 and 2.54 x 10^-6. Such a result suggests that the metallogenic process of rare metal deposits in the Altay orogenic zone might be related to mantle degassing.New helium isotopic data of ores and rocks from the Altay orogenic zone, Xinjiang, China are reported, which show that the pegmatites from No. 3 vein in the Keketuohai area have high3He/4He ratios up to 1.795 × 10?6 and 2.54 × 10?6. Such a result suggests that the metallogenic process of rare metal deposits in the Altay orogenic zone might be related to mantle degassing.

关 键 词：OROGENIC ZONE MANTLE DEGASSING HELIUM isotope. 

分 类 号：P597[天文地球—地球化学]