Study on the petrology of strata bearing petrified wood and the palaeoecology in Xinchang,Zhejiang Province浙江新昌硅化木赋存地层岩石学与古生态环境研究
Mineral composition analysis of petrified wood in Chaoyang and study on its features朝阳硅化木的矿物成份分析及宝石特征