硅化木的鉴定特征、成因与分类评价研究

The identification characteristics,causes and classification evaluation research of Silicified wood

硅化木是地质历史时期植物硅化作用形成的产物,具有重要的科学价值、实用价值和经济价值。硅化木的鉴定主要从矿物物质成分、物理性质、颜色和古植物种类等几个方面进行,其矿物成分主要是石英,化学成分为SiO2,具木质残余结构,植物种类主要为乔木树种。目前硅化木形成的观点主要有火成说、水成说和硅藻生物摄取碳基物质说,三种意见实质上解释了硅质供给的方式与埋藏环境。在分类上,硅化木主要按矿物成分、硅化物质成分、材质、加工程度、硅化树种、颜色等进行分类,质量评价则根据颜色、质地、形状、规模、构造等进行评价。

Silicified wood is a product of geological history period plants formed by the silicification,has important scientific value,practical value and economic value. Silicified wood identification mainly from the mineral composition,physical properties,color,plant species,and the several aspects,such as the main mineral composition is quartz,chemical composition is SiO 2,residual structure with wood,plant species mainly for tree species. The silicified wood form the views of the main fire,water,Lin Lin and algae biofuel absorb carbon based material,said three opinions in essence explains the way of the siliceous supply and burial environment. On the classification,silicified wood mainly according to the mineral composition,the degree of silicide material composition,materials,processing,classify silicide tree species,such as color,quality assessment is based on color,texture,shape,size,structure,etc.