Geology, geography and global energy

Scientific and Technical Journal

Neotectonic development of external continental margin of the North - East site of the Black Sea

2013. №4, pp. 84-96

Yevsyukov Yuriy D.  - C.Sc. in Geography, Leading research assistant, Southern Branch of P. P. Shirshov Institute of Oceanology Russian Academy of Sciences, 1g Prostornaya st., Gelendzhik, Krasnodar region, 353467, Russian Federation ,, evsgeol@rambler.ru

Rudnev Valeriy I.  - Younger Research Assistant, Southern Branch of P. P. Shirshov Institute of Oceanology Russian Academy of Sciences, 1g Prostornaya st., Gelendzhik, Krasnodar region, 353467, Russian Federation,, evsgeol@rambler.ru

In the early sixties of the last century, together with regional echo-sounding, the measurement of depths at oceans and seas began to produce on ranges. On different-sized areas, researches performed in a complex with usage of several methods: echo-sounding, seismic profiling, side imaging sonar, submarine photographing and observations from submarine manned devices. As a result of such works was obtained rich actual material of the bottom topography. First of all it is determined high information capacity of all the data on volume of attended operations as a whole, and on density of various observations and quantity of geological stations in particular. Research on a relatively detailed ranges revealed, that the submarine continental margin has a large variety and heterogeneity of the structure of many morphostructures. From 45 areas completed in Black sea, in the aspect of this article, the greatest interest represented by ranges Gelendzhiksky and in the Blue bay. The results of the work here are the set of charts: bathymetric, geomorphological, prepared survey profiles of the bottom relief and various schemes. Reprocessing of previously received primary data allowed us to specify the characteristic properties of the shelf edge. In its morphostructural and morphosculptural features reflected the specific characteristics of the geomorphology and paleogeography of the continental shelf. A graphic representation of the bottom topography of the shelf edge is the image of its bathymetric marks (morphometric data), taken out in projection to a vertical plane. For such construction were used sixteen submeridional echo-sounding profiles. The location of the inflection points of the edge provided exact coordinates. It helps to demonstrate the role of neotectonics vertical movements and others relief-forming factors involved in the morphostructural transformation of the continental shallow provided in projection to a vertical plane.

Key words: range,bathymetry,shelf edge,morphostructure,morphosculpture,relief,neotectonics,projection

Read