Alongshore Fluxes of Sand Sediments in the Region of Propagation of Tropical Cyclones (Example of the Hicacos Peninsula,Cuba)

Doklady Earth Sciences - The results of analysis of climatic peculiarities of the alongshore fluxes of bottom sediments are presented. The object of research is the coastal zone of the Hicacos...     

Neotectonic dynamics of the marine coastal zone exemplified by the Antarctic Peninsula

The proposed concept of the “marine coastal zone” (MCZ) is substantiated with considering the role of the neotectonics in the formation and evolution of the corresponding morphologic system using the Antarctic Peninsula as an example. For this purpose, the results of the immediate geologic-geomorphologic observations are correlated with an original schematic neotectonic map compiled for the region in question. It is shown that neotectonic movements are responsible for the block structure of the coastal zone representing its most stable element, which is complicated by subsequent regional exogenic coast-forming processes with the glacial one being dominant. Other aspects of the marine coastal zone influenced by neotectonics are also considered. A new (near-polar) type of the marine coastal zone is defined.     

Dynamics of Accumulative Coasts in Enclosed Bays of Antarctica (with an Example of the Key Area of the South Georgia Microcontinent)

Oceanology - The object of direct study is the accumulative coast of King Edward Bay on the island of South Georgia of the Antarctic microcontinent of the same name. Neotectonic uplift of the...     

The Neotectonic Structure of Deception Island (Antarctica) Inferred from the Results of Structural and Geomorphic Analysis

Doklady Earth Sciences - We present the results of analysis of the Strombolian-type Deception volcano after its explosive caldera-forming eruption. The volcano studied, located in the South...     

Coasts of the South Georgia microcontinent in the solving questions of the Holocene eustasy

Data on the geological and geomorphological structure and morpholithodynamics of the northern coasts of the South Georgia microcontinent allowed us to conclude that the Holocene sea level in this region did not exceed its present-day level, which was reached no later than 1000 years ago during the sea level rise after the previous global glaciation epoch. Microcontinents as structural elements of the Earth’s crust are favorable test areas for detailed study of the trends and rates of Holocene (including present-day) sea level fluctuations. This study exceeds the limits of regional research and will contribute to solving certain problems of global natural history.     

The role of neotectonics in the present day dynamics of the sea coastal zone in the western arctic continental platform areas

Cartographic neotectonic models have been created for the key areas of the coastal sea zone (CSZ) in the Western Arctic. These areas were identified within platforms of different ages. The neotectonics predetermines the most durable component of the CSZ, i.e., a wireframe with a fault block structure, and is one of the principal factors governing its development. In particular, it manifests itself in the difference between the exodynamics of parts of the CSZ, with their morpholithodynamic boundaries being similar to the structural aspect, their lithology being close, and the exposition to sea waves being the same. In predicting the development of the CSZ in the 21st century, one can say that there is a reason for some concern, but not for panic. The results of the investigations performed will assist in developing a more effective concept of shoreline protection and solving other applied and scientific problems associated with the junction zone between land and sea.