Analysing the genesis of Quaternary sediments is important for understanding the glaciation history and development of marine sediments in the northern part of Western Siberia. The problem is relevant since there is no consistent concept of the Quaternary sediment genesis in the north of Western Siberia. The formation of sediments is associated with marine, glacial and interglacial sedimentation conditions. The research objective is to identify the persistent features characterising the conditions of sedimentation and relief formation using the Nadym River basin as an example. The best method for studying this problem is a comprehensive analysis of the lithological, chronostratigraphic, petrographic and geomorphological studies of the Quaternary sediment upper strata. This study provides data from the analysis of the basic characteristics of quartz grains at the site. The rounding and morphology of the quartz grains provide evidence of possible glacial processing of some of the site strata. A petrographic study of selected boulder samples was performed. Some of them, by the shape and presence of striation, can be attributed to ice basins. The first use of a detailed digital elevation model applied to the study area made it possible to identify specific relief forms that could very likely be created during glaciations. Based on the analysis, we propose to consider the vast lake alluvial plains in the Nadym River basin as periglacial regions. This idea lays the lithological framework for understanding the reasons for the formation of the modern landscape structure. The materials and descriptions provided are of interest to researchers of Quaternary sediments, topography, vegetation and soil cover, particularly researchers engaged in revising the history of the natural environment development in the north of Western Siberia.

中文翻译：

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西西伯利亚纳德姆河流域上第四纪冰川形成的岩性和地貌指示

分析第四纪沉积物的成因对于了解西伯利亚西部北部的冰川形成历史和海洋沉积物的发展具有重要意义。这个问题是相关的，因为在西西伯利亚北部没有第四纪沉积物成因的统一概念。沉积物的形成与海洋，冰川和冰间沉积条件有关。研究目的是以纳德姆河流域为例，确定表征沉积和浮雕形成条件的持久特征。研究此问题的最佳方法是对第四纪沉积物上地层的岩性，年代地层，岩石学和地貌学进行综合分析。这项研究提供的数据来自对现场石英晶粒基本特征的分析。石英颗粒的圆度和形态为某些部位地层可能进行了冰川处理提供了证据。对选定的巨石样品进行了岩石学研究。由于条纹的形状和存在，其中一些可归因于冰盆。首次将详细的数字高程模型应用于研究区域后，便有可能识别出可能在冰川期形成的特定浮雕形式。在分析的基础上，我们建议将纳德姆河流域的广阔湖泊冲积平原视为冰缘地区。这个想法为理解现代景观结构形成的原因奠定了岩性框架。