digenic meaning in English
二基因的
二基因型的
Examples
- Abstract : to the principle and project that tu guangazhi proposed in 1990 , the gold ore deposits in qinling ( shaanxi ) may be classified into fouowing types : archean high - grade gneiss type , fine grained fragmental rock - carbonate rock - silicilith type , metamorphic fragmental rock type , volcanic rock type , explosive breccia type , intrusive rock exo - and endo - contact zone type . inthis paper , the geological characteristics , metallogenic geological setting , the source of ore - forming materials , digenic mechanism and metallogenetic epoch of gold ore deposits are also discussed
文摘:参照涂光炽先生( 1990 )提出的矿床类型划分原则与金矿分类方案，将陕西秦岭地区原生金矿划分为太古界绿岩建造型、细碎屑岩-碳酸盐岩-硅质岩建造型、变质碎屑岩型、火山岩建造型、隐爆角砾岩型和侵入岩内外接触型金矿，并对各类型金矿的地质特征、成矿地质背景、成矿物质来源、矿床形成机制及形成时代等问题进行了论述和讨论。