【摘要】 四川射洪硅化木国家地质公园不仅硅化木化石数量多,分布集中,且与恐龙化石一起出现,十分罕见,具有重要的科考和旅游价值。硅化木的形成条件是必须有丰富的森林资源和高浓度的含可溶性二氧化硅的矿物质热液。更多还原

【Abstract】 There were a lot of petrified woods in Shehong National Geological Park,Sichuan Province.And its distribute centralized.Moreover,it was extremely rare that the petrified woods appeared together with the dinosaur fossils.Accordingly,the National Geological Park had very important science value and traveling value.There were two important conditions in the petrified woods formation.One of it was the rich forest,the other was the hydrothermal that contained highly concentrative soluble silicon dioxide.更多还原