This review serves as an explanatory note to the sketch map of loessoids, i.e. loess and various loess-like deposits. The map is a byproduct of the ongoing project of Quaternary Map of the Russian Federation, scale 1:2,500,000 in GIS-format. The primary information is derived from the standard National Geological Map scale 1:1,000,000 of the last two generations supplemented by literary data. The map polygons present all mappable loessoid units, including thick southern carbonate loess with paleosols, loess-like silts of northern terrains, intercalations of loessic sediments with waterlain facies and icy silts of the Arctic and Subarctic type. The loessoid formations are classified according to their stratigraphic intervals: 1) the radiocarbon dated Upper Pleistocene of northern terrains, 2) the Middle plus Upper Pleistocene of central Russia, 3) the late Lower Pleistocene to Upper Pleistocene series of southern regions and 4) the Lower Pleistocene red clays of the south. The distribution of diverse loessoids is an imprint of: i) the diverse sedimentary environments of the basically arid periglacial zones of the Pleistocene and ii) the modern geographical zonality changing from subtropics to the icy High Arctic and responsible for post-depositional alteration of subaerial dust. Whatever the origin of the primary dust and geographical varieties of the diagenesis, all loessoids share the same fundamental feature – paleosols, whether numerous and expressive or scarce and weak. They underline the climatically driven intermittent process of loessoid formation – basically subaerial and independent of any aqueous agencies.

本文是对黄土和黄土和各种黄土状沉积物草图的解释性说明。该地图是俄罗斯联邦第四季度地图正在进行的项目的副产品，比例尺为GIS格式的1：2,500,000 。主要信息来自后两代的标准国家地质图比例尺1：1,000,000，并辅以文学数据。地图上的多边形代表了所有可绘制的黄土类单位，包括厚厚的南部土壤碳酸盐黄土和古土壤，北部地形的黄土状粉砂，夹杂着水相的黄土沉积物以及北极和亚北极的冰状粉砂。黄土类地层根据其地层间隔进行分类：1）北部地区上更新世的放射性碳，2）俄罗斯中部上中更新世，3）下更新世晚期到南部地区的上更新世系列，以及4）南部的下更新世红色黏土。各种类黄酮的分布印有：i）更新世基本干旱的冰河带的各种沉积环境，以及ii）从亚热带到冰冷的高北极地区的现代地理地带变化，并导致沉积后的地下尘埃蚀变。无论成岩作用的主要尘埃来源和地理种类如何，所有黄土都具有相同的基本特征-古土壤，无论是大量的，富有表现力的还是稀少而脆弱的。它们强调了气候驱动的类黄酮形成的间歇过程–基本上是地下的，并且独立于任何水成因。无论成岩作用的主要尘埃来源和地理种类如何，所有黄土都具有相同的基本特征-古土壤，无论是大量的，富有表现力的还是稀少而脆弱的。它们强调了气候驱动的类黄酮形成的间歇过程–基本上是地下的，并且独立于任何水成因。无论成岩作用的主要尘埃来源和地理种类如何，所有黄土都具有相同的基本特征-古土壤，无论是大量的，富有表现力的还是稀少而脆弱的。它们强调了气候驱动的类黄酮形成的间歇过程–基本上是地下的，并且独立于任何水成因。