Geology, geography and global energy

Scientific and Technical Journal

Relief changes Doob mountain and coastal shallows after the disastrous floods (North-West Caucasus)

2015. №3, pp. 90-101

Yevsyukov Yuriy D. - 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

Borisov Dmitriy G. - C.Sc. in Geology and Mineralogy Researcher, 1g Prostornaya st., Gelendzhik, Krasnodar region, 353467, Russian Federation, dborisov@ocean.ru

Kuklev Sergey B. - C.Sc. in Geography Head of Laboratory, 1g Prostornaya st., Gelendzhik, Krasnodar region, 353467, Russian Federation, kuklev@ecologpro.ru

Rudnev Valeriy I. - Younger Researcher, 1g Prostornaya st., Gelendzhik, Krasnodar region, 353467, Russian Federation, evsgeol@rambler.ru

An unprecedented amount of atmospheric precipitation July 6, 2012 in the north-east coast of the Black Sea caused flooding of large areas of the Krymsk, Novorossiysk and Gelendzhik districts. This event was the subject of numerous researches and publications. They discussed in detail the reasons and factors of natural and anthropogenic character. For the most part, these works included Krymsk region. Gelendzhik is known only by a newspaper article in which the events in the valley of the river Ashamba and Blue bay were not even mentioned. Turbulent flow of high power destroyed capital buildings, brick fences, transformed the river channel and its floodplain. A huge amount of mudstone material changed the bottom surface of the bay which depths decreased by 2-2,5 m. In 2010, completed a detailed echo sounding in the area. Composed new bathymetric and geomorphological charts. These documents provided a reliable basis for determining the degree of variability of the bottom surface relief of the bay after the flood and the subsequent storm transformations. Gathering information on the consequences of catastrophic floods continues. In 2013-2014 in order to monitor the effects of flooding on the slopes of Doob and along the foot of the coastal ledge held walking routes. Selected geological samples, which are composed accumulative body mudstone flows. The studied areas photographed, received more than 100 images. On the coastal shoals completed a detailed echo sounding. On compiled bathymetric chart identifies anticipated submarine fans formed under the action of mudstone flows. This article is devoted to the analysis revealed changes in the elevation of Doob and coastal shallow. It is assumed that the content of this article can be used in scientific and practical purposes, and also as a basis for subsequent similar studies.

Key words: гора, висячая долина, рельеф, береговой уступ, орографический профиль, селевой поток, прибрежная отмель, эхолотный промер, конус выноса, mountain, hanging valley, relief, coastal ledge, orographic profile, mudflow, coastal shoal, echo sounding, alluvial f

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