【摘要】 通过南京附近新近纪砂砾层代表性剖面描述及对比,新近纪玄武岩的喷发期次及其与砂砾层的层序关系,着重讨论了新近纪砂砾层的岩石地层层序及不同时段砂砾层的岩性特征。建议建立大雨花台组(群)(N1-2y)来包含南京附近所有的新近纪砂砾层;建议该区新近纪玄武岩统一命名为方山(旋回)玄武岩。更多还原

【Abstract】 Based on the typical profile descriptions and contrast of sandy gravel of Neogene Period in Nanjing vicinity,the sequence relationship of basaltic eruption cycle and sandy grave in Neogene Period,with emphases on the lithostratigraphic sequence of sandy gravel and lithocharacteristics of the sandy gravel in different periods in Neogene Period.The authors suggested an upbuilding of a macro Yuhuatai formation so as to cover all of the sandy gravels of Neogene Period in Nanjing;and an unite nomination of Neogene Basalt to be Fangshan(cycle)basalt.更多还原