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A Hypothesis for the Sawlike Pattern of World Sea-Level Fluctuations

Published online by Cambridge University Press:  20 January 2017

A. B. Kazanskiy
A. B. Kazanskiy*
Affiliation:
Institute of Geography, USSR Academy of Sciences, Moscow, USSR
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Abstract

A theory of the world's sea-level fluctuations during late Pleistocene time, based on the analysis of the general equation of the mass balance between ocean water and inland water, suggests that the exchange of water masses between the ocean and the land, where at continental glaciation periods water is stored as ice, occurs only as a result of global climatic changes. The tectonic effect is considered insignificant for late Pleistocene time. The proposed theory explains the asymmetric character and the sawlike shape of the curve of the main cycles of sea-level fluctuations. The theory also makes it possible to construct a diagram of sea-level fluctuations from the last glacial maximum to the present time. This diagram is governed by two parameters, the amount of the average “effective” evaporation from the world's ocean surface (evaporation minus rainfall) and the rate of the sea-level rise at the present time. The resulting theoretical curve agrees well with known estimates of sea level within the time span being considered. The comparison of the theoretical curve with these estimates eliminates the apparent discrepancy between data obtained by different methods: measurements of old coastline and the isotopic composition of bottom sediments.

Type
Research Article
Information
Quaternary Research , Volume 24 , Issue 3 , November 1985 , pp. 285 - 294
Copyright
University of Washington

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