Бончковський, О. С.О. С.Бончковський2025-12-252025-12-252017Бончковський О. С. Особливості реліктової посткріогенної морфоскульптури східної частини Волинської височини. Фізична географія та геоморфологія. 2017. Вип. 2 (86). С. 48-59.УДК 551.89:551:4.06.(477.86)https://ir.library.knu.ua/handle/15071834/9036Розглянуто типи посткріогенної морфоскульптури, поширені у межах східної частини Волинської височини, удосконалено їх класифікацію та генетичну інтерпретацію кожного типу морфоскульптури, а також показано стадії розвитку та епігенетичної трансформації. Запропоновано кріогеоморфологічне районування східної частини Волинської височини за ступенем виявлення на земній поверхні реліктового мерзлотного рельєфу.Relic postcryogenic morphosculpture (RPM) is a complex of microrelief forms which formation has been controlled by a melting permafrost during the Late Glacial and the beginning of the Holocene. The relic cryogenic microrelief occupied almost 80% of the area under investigation (not visible under woods, settlements, and absent on floodplains, young relief forms and very steep slopes). Different types of RPM have been revealed in the area studied: polygons, polygon-blocks, block-depressions, hill-depressions, depressions, and dellis. It is shown that many forms of erosional relief have palaeocryogenic origin. Relict pingos are tentatively revealed on the river terraces. A majority of relic cryogenic structures were formed during the Krasyliv palaeocryogenic stage by A. Bogutsky (11 kyr BP), but some of them were also formed during the preceding Rivne stage. The RPM developed in the Neogene and Cretaceous rocks within the neotectonically active areas, most probably were formed during the Middle Pleistocene cold stages. Three phases of RPM formation are established: 1) during permafrost existence; 2) during permafrost melting; 3) postcryogenic – formed under specific transitional conditions from a cold to warm stage. Five steps of RPM development were identified: sedimentation, biogeochemical transformation, regeneration, erosional destruction, anthropogenic destruction. They are not necessarily successive in time. . It is shown that at present, any postcryogenic structure is polygenetic in its origin (cryoerosional, cryosuffusional, cryokarstic, cryodepressions, etc). The division into cryogeomorphological regions of the area studied is suggested Cryogeomorphological region is a part of the cryogeomorphological zone that is characterized by similarity of RPM types, conditions of cryogenic structure formation and their erosional transformation. The main principle of division into regions is a paragenetic connection of a morphostructure and morphosculptures. Six cryogeomorphological regions in the eastern part of the Volyn` Upland are as follows: the Goshcha, Rivne, Zdolbuniv, Mizoch, Povcha, Mlyniv ones.ukкріоструктурадешифруванняблокміжблокова западинакріогеоморфологічний районcryogenic structureaero-satellite decipheringblockinterblock hollowcryogeomorphological regionСтаття