Formation of ancient valleys of the river Nura
DOI:
https://doi.org/10.31489/2016bmg2/75-78Keywords:
ancient alluvium, erosion, denudation, basal gravels buried valley, stage of development, psephytic material source of the river, peneplanation, fluvial processes, clay particles, quaternary sediments, floodplain, terrace, Late Pleistocene, Pliocene sedimentsAbstract
This article discusses the features of the formation of the buried ancient valleys of the Nura River. Based on power analyzes loose particle size distribution were revealed deposits which are interconnected with modern Quaternary sediments. During the study of the formation of ancient valleys Nura River were studied erosive and accumulative processes affecting the morphology of genetic floodplain terraces of the area. The study identified that the Nura River Basin fully or partiallyuse its valley Quaternary and Pliocene rivers, which have the same direction as the current channel Nura river in Central Kazakhstan.
