摘要
海南省蓬莱是我国著名的蓝宝石产地之一。本文研究了该地蓝宝石的矿物学及化学组成特征,并首次详细研究了蓝宝石的包裹体特征,测定了蓝宝石的形成温度。最后,综合其它证据,对蓝宝石的成因进行了讨论。 本区蓝宝石中的包裹体主要分成五种类型:①固体包裹体(锆石、钛铌铁矿等);②原生熔融包裹体(A+G,A+G+C);③次生熔融包裹体(A_(Fe+Si)+G,A_(Fe+Si);④指纹状包裹体(A,A+G,A+G+C,A_(Fe+Si);⑤流体熔融包裹体(A+L_(CO_2)+G,A十L_(CO_2)。其中②类原生包裹体的均一温度为1125～1265℃。
Penglai of Hainan Province is one of the famous sapphire producers in China. This paperis concerned with the mineralogy and chemistry of sapphire, as well as the character istics ofinclusions in it. Inclusion temperatures are measured and the genesis of sapphire is also dis-cussed. Five types of inclusions in sapphire are distinguishable as follows: A: solid inclusions (zircon, Ti-columbite, etc.); B: primary melt inclusions (A+G, A+G+C); C: secondary melt inclusions (A_(Fe+Si)+G, A_(Fe+Si)); D: finger-print inclusions (A, A+G, A+G+C, A_(Fe+Si)); E: fluid-melt inclusions (A+L_(CO_2)+ G, A + L_(CO_2)); The B-type inclusions have homogeneous temperatures ranging from 1125 to 1265℃.
出处
《矿物学报》
CAS
CSCD
北大核心
1993年第4期368-373,共6页
Acta Mineralogica Sinica
基金
中山大学校基金
国家自然科学基金
关键词
蓝宝石
成因
矿物包体
sapphire
mineral inclusion
temperature
genesis
