The First Discovery of a Tin Deposit Related to Hercynian A-Type Granites in China  

作　　者：毕承思 沈湘元 徐庆生 

机构地区：[1]Institute of Mineral Deposits, Chinese Academy of Geological Sciences, Beijing 100037, PRC

出　　处：《Science China Chemistry》1993年第4期490-498,共9页中国科学（化学英文版）

摘　　要：This paper introduces the petrological, mineralogical and geochemical fea. tures of the rocks hosting the Sareshik tin deposit—an independent tin deposit related to Hercynian A-type granites discovered in China in 1987. A comparison with the features of A-type granites at home and abroad indicates that some of their petrological features are more typical than those of famous A-type granites of Nigeria. The geological features of the tin deposit are salient and notably different from those of some famous tin deposits in China, so the deposit may represent China’s deposits associated with anorogenic granites. This tin deposit was formed in the Hercynian Stage. This type of tin deposit was for the first time discovered in China and is also rare in the world. It is a new type of tin deposit in China.This paper introduces the petrological, mineralogical and geochemical fea. tures of the rocks hosting the Sareshik tin deposit—an independent tin deposit related to Hercynian A-type granites discovered in China in 1987. A comparison with the features of A-type granites at home and abroad indicates that some of their petrological features are more typical than those of famous A-type granites of Nigeria. The geological features of the tin deposit are salient and notably different from those of some famous tin deposits in China, so the deposit may represent China's deposits associated with anorogenic granites. This tin deposit was formed in the Hercynian Stage. This type of tin deposit was for the first time discovered in China and is also rare in the world. It is a new type of tin deposit in China.

关 键 词：HERCYNIAN anorogenie or POST-OROGENIC GRANITES A-type(alkali)granires independent tin deposit. 

分 类 号：O6[理学—化学]