兰州市红古区红层景观及形成演化分析

Analysis of Redbeds Landscape and its Formation and Evolution in Honggu District of Lanzhou City

甘肃省红层地貌发育广泛,分布较密集的市(州)为张掖、兰州、临夏及平凉。其中位于张掖的彩丘地貌随着有关部门的宣传已经被大家所熟知,但对兰州市远郊的红古区辖区内发育的大片红层景观关注度明显不足。本文将利用实地调查资料和已有的研究成果,在表明研究区红层地貌自然地理条件、地质构造、景观分布的基础上,对区域内局部地貌景观进行科学的定义。探究其形成演化的动力机制。本文以兰州市红古区内的红层为研究对象,按照主导动力成因,开展地貌测量和分析工作。对发育的红层景观和丹霞地貌的类型、形成条件及演化过程进行研究。本研究工作对了解和认识红古区丹霞地貌具有重要意义,同时对于本区以丹霞地貌为主题的地质公园申报、建设和旅游开发具有重要意义。

The redbed geomorphology in Gansu province is widely developed, and the densely distributed cit-ies (states) are Zhangye, Lanzhou, Linxia and Pingliang. Among them, the colored hills landforms in Zhangye have been well known with the publicity of relevant departments, but attention to the large red landscape developed in the Honggu district in the outer suburbs of Lanzhou city is obvi-ously insufficient. Using the field investigation data and existing research results, we will scientifi-cally define the local microlandscapes in the region on the basis of showing the natural geographical conditions, geological structure and landscape distribution of the red layer landforms in the study area. The dynamic mechanism of its formation and evolution will be investigated. This paper takes the red layer in the Honggu District of Lanzhou City as the object of study, and carries out geomor-phological measurement and analysis according to the dominant driving force causes. The type, formation conditions and evolution process of the developed red layer landscape and Danxia land-form are studied. This research work is of great significance to the understanding and knowledge of Danxia landform in Honggu District, and is also of great significance to the application, construction and tourism development of the geopark in this district with Danxia landform as the theme.