湖南金刚石指示矿物特征

石榴石和铬尖晶石是金刚石的重要指示矿物,它们在金伯利岩和钾镁煌斑岩中分布较广泛.国内外各金刚石原生矿产地,大都是采用重砂法,运用金刚石指示矿物发现的.湖南金刚石包裹体达20余种,橄榄岩型(P型)和榴辉岩型(E型)包裹体矿物组合各占50%,还在数颗金刚石中发现有(P+E型)混合型包裹体矿物组合,它的发现具有重要的意义.根据湖南金刚石指示矿物表面结构特征的研究,在湖南宁乡云影窝地区成功地发现了微含金刚石钾镁煌斑岩管脉群.湖南已发现金刚石指示矿物异常区(点)数十处,为今后部署湖南金刚石原生矿勘查工作提供了重要信息.

Features of diamond index minerals in Hunan

Garnet and picotite are very important index minerals of diamond, which are widely spread with kimberlite and lamproite. In the world, many countries use the method of heavy minerals, which finds, based on the information of diamond index minerals, the original diamond mining, and so much mining has been found. In Hunan Province, we have found diamond inclusions as many as 20 different types, including peridotite-type(P-type), eclogite-type (E type) and a few of mixed types. Those three types are significan...