THE ROLE OF THE SUBMARINE LANDSLIDE PROCESSES IN EVOLUTION OF THE BLACK SEA CONTINENTAL SLOPE AND SHELF. THE INFLUENCE OF LANDSLIDES ON MODERN COASTAL PROCESSES

2018 ◽  
Author(s):  
Л. Есина ◽  
L. Esina ◽  
А. Хворощ ◽  
A. Hvorosch ◽  
Н. Есин ◽  
...  
Keyword(s):  
Continental Slope ◽  
Black Sea ◽  
Bottom Topography ◽  
Geological Structure ◽  
The Black Sea ◽  
Shelf Edge ◽  
Engineering Structures ◽  
National Economic ◽  
Landslide Processes

Detailed studies of landslide formation on the continental slope of Near Caucasus part of Black Sea, we have made in the area between the Pshada– Olginka settlements allowed to explore the distribution of landslide formations on the continental slope and to establish their influence on the retreat of the shelf edge. The intensive destruction of shelf edge leads to a reduction in its width, the intense movement of sediments from the shelf and transporting them to the continental slope and deep-sea part in large quantities. The evolution and distribution of landslides are influenced by the geological structure of the navigation area, the width of the shelf, the rate of shoreline destruction and sediment transport from the shelf to the continental slope, underwater topography and slope declination, tectonic and seismic factors. Landslide processes on the coast and continental slope affect the modern coast changes, the bottom topography, the formation of Black Sea deep basins and the expansion of Black Sea. Coastal landslides pose a threat to coastal communities and national economic objects located in areas of high abrasion scarps of terraces, as well as for engineering structures on the continental shelf, continental slope and the seabed.

scholarly journals Marine gas hydrates’ evolution after Middle Pleistocene: basin analysis of the Danube fan, Black Sea

2020 ◽  
Vol 81 (3) ◽  
pp. 184-186
Author(s):  
Atanas Vasilev ◽  
Nikola Botoucharov ◽  
Petar Petsinski ◽  
Rositsa Pehlivanova
Keyword(s):  
Black Sea ◽  
Gas Hydrates ◽  
Gas Hydrate ◽  
Deep Sea ◽  
Geological Structure ◽  
Basin Analysis ◽  
Middle Pleistocene ◽  
The Black Sea ◽  
Sea Fan

The aim of this work is to reconstruct the variations of the total gas hydrate (GH) masses of the Danube deep-sea fan after 0.265 Ma BP. The PetroMod™ model developed in GEOMAR, Germany is for basin analysis of the Western Black Sea for 98 Ma. Geological structure is from 2D seismic of the Black Sea consortium “Geology without limits”. Results show a trend for total GH masses decrease after Middle Pleistocene and the role of the GHs as sink and source of methane.

Role of suspended matter in controlling beryllium-7 (7Be) in the Black Sea surface layer

2021 ◽  
pp. 103513
Author(s):  
Dmitrii A. Kremenchutskii ◽  
Gennady F. Batrakov ◽  
Illarion I. Dovhyi ◽  
Yury A. Sapozhnikov
Keyword(s):  
Surface Layer ◽  
Black Sea ◽  
Suspended Matter ◽  
Sea Surface ◽  
The Black Sea

Georgian Historians and the Ideological Confrontation Between East and West

2021 ◽  
Vol 30 (1) ◽  
pp. 153-164
Author(s):  
George Gotsiridze
Keyword(s):  
Soviet Union ◽  
Cultural Values ◽  
Black Sea ◽  
The Black Sea ◽  
Black Sea Region ◽  
The Soviet Union ◽  
Long Time ◽  
Science And Culture ◽  
East And West

The work, on the one hand, highlights the mission of Europe, as an importer of knowledge, which has for centuries been the center of gravity for the whole world, and, on the other hand, the role of the Black Sea Region, as an important part of the Great Silk Road, which had also for a long time been promoting the process of rap-prochement and exchange of cultural values between East and West peoples, until it became the ‘inner lake’ of the Ottoman Empire, and today it reverts the function of rapproching and connecting civilizations. The article shows the importance of the Black Sea countries in maintaining overall European stability and in this context the role of historical science. On the backdrop of the ideological confrontation between Georgian historians being inside and outside the Iron Curtain, which began with the foundation of the Soviet Union, the research sheds light on the merit of the Georgian scholars-in-exile for both popularization of the Georgian culture and science in Eu-rope and for importing advanced (European) scientific knowledge to Georgia. Ex-change of knowledge in science and culture between the Black Sea region and Europe will enrich and complete each other through impact and each of them will have unique, inimitative features.

scholarly journals Engineering geophysical studies in the Black Sea from onboard the R/V Ashamba during 2017

2019 ◽  
Vol 59 (2) ◽  
pp. 319-320
Author(s):  
N. N. Dmitrevskiy ◽  
R. A. Ananyev
Keyword(s):  
Transition Zone ◽  
Continental Slope ◽  
Black Sea ◽  
Water Area ◽  
The Black Sea ◽  
Echo Sounder

In May and October 2017, expeditionary research was carried out in the area of Gelendzhik in the Black Sea at the R/V «Ashamba». The main tasks were the mapping of the seabed and the search for small-sized objects at the bottom of the water area using a WASSP WMB-3250 multibeam echo sounder. Surveys included areal surveying and drawing up bathymetric maps of test sites in Gelendzhik Bay and in the transition zone from the shelf to the continental slope. In addition, the echo sounder was used to search and determine the exact coordinates of the bottom seismograph installed at the seabed near the Divnomorskoye village in May 2016. The article presents the results of the work carried out.

scholarly journals Ecological interrelations of Rapana venosa (Gastropoda: Muricidae) with ichthyofauna in the Black Sea

2016 ◽  
Vol 1 (4) ◽  
pp. 76-77
Author(s):  
I. P. Bondarev
Keyword(s):  
Black Sea ◽  
Marine Ecosystem ◽  
Fish Fauna ◽  
The Black Sea ◽  
Sandy Bottom ◽  
Rapana Venosa ◽  
New Information ◽  
Bottom Zone

Systematic monitoring of ecologically significant species – predatory mollusc Rapana venosa Valenciennes, 1846 populations – is an important part of the Black Sea monitoring. The study of the role of R. venosa in contemporary marine ecosystem is of considerable interest. In June-September 2015-2016 the study of consorting relations of rapana was conducted in situ with a parallel sampling by diver. In the course of research new information about the interaction of R. venosa with the fish fauna has been obtained. Of particular importance for fishes is the presence of rapana in the sandy bottom zone, where there are no natural shelters, and food resources are limited. The most important for the fish is the presence on the rapana shells of algal fouling and epiphyton. The shells of invader – R. venosa – and its fouling create additional opportunities for the survival of some fish fauna representatives juveniles of the Black Sea. The data obtained extend the concepts of ecological role of mollusc – invader R. venosa, as well as the ecology and ethology of several fish species.

The Role of the Black Sea Commission in the Sustainable Management of the Marine Living Resources

2015 ◽  
pp. 306-326
Author(s):  
Iryna Makarenko
Keyword(s):  
Black Sea ◽  
Marine Environment ◽  
Sustainable Management ◽  
Institutional Structure ◽  
The Black Sea ◽  
Global Level ◽  
Current Trends

In this chapter, the role of the Black Sea Commission in the preservation of marine environment will be considered. Particular emphasis will be placed on the activities related to management of the marine living resources, the legal gaps in the documents and institutional structure, as well the current trends and challenges on the regional and global level. An overview of relevant Black Sea Commission's observers and partners will be provided; existing and possible future arrangements with them will be further described and analyzed. Some concrete recommendations on the improvements in the management of marine living resources in the Black Sea basin will be proposed.

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