【摘要】 山东莱芜红石公园内出露较大面积的红色岩层,研究其成因及其沉积环境,可以确定当时的古地貌和气候特征,因此具有重要意义。在红色岩层分布区采集7个样品,用XRF、激光粒度分析仪和扫描电镜等设备进行分析,结果发现红层主要成份是SiO₂和Al₂O₃,沉积粒度以细沙为主,沙粒上具有水成标志。确定莱芜红色岩层为丹霞地貌景观,形成于季节性河流沉积,当时气候比较炎热干燥。更多还原

【Abstract】 There are large area of red outcrop in Laiwu Red Rock park of Shandong. Its ancient landform and paleoclimate features can be determined by studying its cause of formation and sedimentary environment,so the study is of great significance. In order to carry out the research,seven samples were collected in the red beds region.The samples were analysed by XRF,laser particle size analyzer and scanning electron microscopy. The results show that the main components of the red beds are SiO₂ and Al₂ O₃. The sedimentary particle size of the red beds is dominated by fine sand,and the sands have some hydatogenesis mark. According to the previous analysis,it can be speculated that the red beds belongs to Danxia landform,which deposited in seasonal river,and the climate was hot and dry at that time.更多还原