DocumentCode :
2740165
Title :
The World Ocean level change during the Holocene
Author :
Esin, N.V. ; Esin, N.I.
Author_Institution :
Southern Branch of the P.P. Shirshov Inst. of Oceanol., Krasnodar, Russia
fYear :
2012
fDate :
8-10 May 2012
Firstpage :
1
Lastpage :
6
Abstract :
One of the global processes on the planet in the Late Pleistocene-Holocene was transgression in the World Ocean level and initiated by it changes in the levels of inland seas. The study of this process in the Black Sea was not allowed to set a timetable for the changes of its level during the time. For more than 50 years of research, scientists suggested dozens of different curves of the Black Sea level change, but none of them has received total recognition. During the last years it has become apparent that these curves describe not the absolute level change, and some of its local level change in a local crustal movements and specific to the region of random processes. Therefore, local curves of the sea level changes may be a lot, that we have actually, and the absolute curve of the sea level change is only one. In this paper we present the developed method of calculation of the absolute curve of the Mediterranean sea-level change from the local curves, as well as the inverse of action - calculation of local curves from the absolute curve of the sea level change. We calculated the absolute course of the Mediterranean and Black Seas level change during the Holocene from the local curves of these seas. During the Holocene the absolute change of the Mediterranean Sea level repeated the absolute change of the World Ocean level, because they are connected by wide and deep Strait of Gibraltar. A comparison of the two curves of the absolute World Ocean level change, as well as the absolute curve for the Black Sea level change shows that all three curves are close to each other and describe the same process: transgression from 7 to (4,5-3,5) thousand years ago, and the next a minor regressive-transgressive cycle. In literature this cycle in the Black Sea was called Fanagorian regression. It follows that the course of the Black Sea level with small exceeding have been repeating the course of the World Ocean level during the Holocene, and there were no numerous secondary in- ependent from the ocean multimeter fluctuations in the Black Sea. This completely coincides with the results of theoretical research.
Keywords :
sea level; Black Sea; Fanagorian regression; Gibraltar Strait; Late Pleistocene-Holocene; Mediterranean sea-level change; World Ocean level; local crustal movements; local curves; minor regressive-transgressive cycle; ocean multimeter fluctuations; random process region; Earth; Geology; Random processes; Sea level; Sea measurements; Sediments;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Baltic International Symposium (BALTIC), 2012 IEEE/OES
Conference_Location :
Klaipeda
ISSN :
2150-6027
Print_ISBN :
978-1-4673-1413-8
Type :
conf
DOI :
10.1109/BALTIC.2012.6250112
Filename :
6250112
Link To Document :
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