The paper discusses special features of geology and geomorphology of one of largest arcuate morphostructures of the Earth. A general position of the Caribbean arc is shown within the whole Pacific-Eurasian belt of compression, types of morphostructures are indicated together with differences in different sectors of the arc, their development was of pulsatory-wavy character since the Mesozoic, the morphostructure acquired its modem appearance in the early Cenozoic. The compression was most pronounced in the northern part of the Caribbean Arc. Reasons are discussed for the arc growth towards east, south and south-west.

A map of neotectonics of Eastern Europe has been compiled, when calculating the surface deformations the difference in the World Ocean level has been taken into account: during the Oligocene and the Miocene it was 100 m above that of today. Amplitudes of uplifts and subsidence’s were calculated from changes in elevations of the planation surfaces dated to the Mesozoic and Paleogene.

The paper presents an attempt to explain the structure and evolution of mountain and plain relief of the Gobi desert, Mongolia, on the basis of the arid cycle theory (as developed by W.M. Davis). The stages of primary tectonic topography transformation by exogenic processes appear to be helpful in the understanding of the geomorphological evolution. A greater difficulty presents correlation between stages of progressive evolution from mountains towards peneplain and repeated neotectonic manifestations which disturb normal process. Various stages belonging to different cycles are pronounced in the Gobi relief. The Davis concept helps to reconstruct most fully the arid topography evolution.

The recent exogenic processes are controlled, besides natural factors, also by types of cultivation, under extreme climatic conditions, the latter may result in the shift of exomorphogenesis towards aridity. As a result, trends of climatic changes and exomorphogenesis may disagree, as shown taking the Volgograd region as an example. On the whole, the exogenic processes are of pulsatory and cyclic character.

The paper presents morphometric and hydraulic characteristics, information on channel formations, character of ground and rate of deformation of the Upper Amur channel under natural conditions, some tentative estimates are given of the reservoir silting and general channel deformations downstream of the cascade of hydroengineering systems (downstream from the Novovoskresenovsky power station).

In the middle reaches of the Khoper River near Povorino town some segments of superimposed floodplain are identified which inherit channel macro-meanders dated to the late glacial and the early Holocene. Two generations of the macro-meanders are distinguished and their parameters are determined. Hydromorphological and hydraulic techniques were used to calculate paleo-discharges necessary to form meanders of the given characteristics. The author arrives at the conclusion that changes in runoff under periglacial conditions of the late glacial were of primary importance in the meanders formation.

A scheme of the region subdivision according to the conditions of channel-forming discharges is developed for the Far East which completes the development of a general scheme for Northern Eurasia. The conditions of the channel-forming discharges passage are shown to influence development of morphodynamic type of channel in different regions.

A classification of erosional (balks) landforms has been developed taking the Kursk region as a case study; the landforms morphometric characteristics and sediment lithology are taken into account. Lands dissected by balkas may be better cultivated and ecological situation improved by considering parameters which are or could be included into the scheme.

Remote sensing technique has been applied to studies of a flat-bottom depression encircled with fragmentary rampart on the northern Barents Sea shelf. The depression is 17 by 11 km large and 90 m deep, the circular rampart is 15 to 30 m high. As revealed by seismic profiles, Tertiary and Upper Cretaceous sediments have been destroyed or disturbed, while deeper layers have been fractured. The Quaternary cover seems undisturbed. The described morphosculpture named «Lunin astrobleme» was presumably due to meteorite impact at the time of the Pleistocene glacial maximum when the shelf was dry.

Bathymetrical and geomorphological maps of the norther Barents Sea shelf adjacent to Svalbard and Franz-Josef Land archipelagoes have been compiled. A number of submarine depressions, troughs, terraces, as well as elevations are mapped. A complicated system of paleovalleys is revealed on the sea floor. Three geomorphological provinces are recognised: the province of inner-shelfic depressions and highs (the northern part of the Barents megadepression), the province of outer-shelfic archipelagoes and deep fjords and the province of suboceanic troughs dissecting the continental slopes within the Eurasian and Norwegian-Greenland oceanic subbasins. The tectonic origin of macrorelief of the region as well as predominantly glacial origin of mesorelief and marine genesis of microrelief is stated.

Ледники западной и северной периферии Тянь-Шаня за 2000 лет

Forests growing on the plain rivers floodplains deeply influence erosion and sedimentation. They control erosion and protect the banks. The riverine forests impact on the erosion and alluviation processes is discussed with reference to various types of banks: concave, eroded, convex bulit-up, and rectilinear ones. The paper discusses different tree species, as well as differences in the age and density of growth. Consideration of all those data would permit to choose right species, as well as correct system of planting, and thus to regulate and control erosion and alluviation in each individual case.

Conditions and mechanisms of neotectonic fissuring and cave formation are considered with special reference to the hypsum massive of Podolia. The Podolian platform is shown to be a surprisingly stable morphostructure with placated topography which developed from the Silurian to the Middle Miocene. It underwent subsidence in the Miocene and was flooded by the shallow water Tortonian Sea, where lagoon (including gypsum) sediments were accumulated. At the end of the Miocene the platform was uplifted up to 250 to 300 m a.s.l. During the Pleistocene the plain relief was covered by the loess periglacial formations and dissected by river network. The latter has not penetrated the central part of the gypsum massive of Podolia. Within the limits of the latter, due to the gypsum member viscous flow towards large river valleys a complicated dense network of subterranean holes developed, later on, they were remodelled by karstic processes and transformed into a system of Podolian caves unique in their genesis.

Развитие морских берегов в плейстоцене и голоцене в условиях изменяющегося уровня Мирового океана - рецензия на книгу А.О.  Селиванова «Изменения уровня Мирового океана в плейстоцене-голоцене и развитие морских берегов» (Научн. ред. проф. д.г.н. П.А. Каплин. М.: Институт водных проблем РАН. 1996. 268 с.)

Новейшая монография о глобальном рельефе Земли - рецензия на книгу В.М. Литвина «Морфоструктура Земли» (Калининград: Калининградский госуниверситет, 1995. 419 с.)

Палеогеография позднего кайнозоя Восточной Европы и Западной Сибири (ответ рецензентам)

В июле 1996 г. в г. Эксетер (Великобритания) прошла международная конференция "Эрозия и сток наносов: глобальные и региональные перспективы". Конференция была организована комиссией по континентальной эрозии международной Ассоциации гидрологических наук (ІАНЅ) (председатель проф. Д. Уоллинг, Великобритания). Основная тематика конференции касалась проблем оценки изменений стока наносов рек в целом на Земле, в пределах отдельных континентов, крупных речных бассейнов или ландшафтных зон. Кроме того, затрагивались вопросы, непосредственно примыкающие к данной проблематике. В работе конференции приняли участие делегаты из 47 стран, представляющие все континенты.