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Regional Unified and Correlative Stratigraphic Scheme for the Quaternary of European USSR

By
I. I. Krasnov
I. I. Krasnov
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Published:
January 01, 1965

Studies and mapping of the Quaternary deposits in the USSR are being carried out over vast areas. The large number of local stratigraphic schemes makes it difficult to produce state geological surveys according to a plan. For solving this problem we compile regional unified and correlative schemes by synthesis of hundreds of local schemes according to the instructions of the Interdepartmental Stratigraphic Committee. We already have unified schemes of the European USSR, the Urals, western Siberia, the Siberian Platform and its southern mountains, Kazakhstan, and Central Asia. Soon we shall have the unified scheme for the whole territory of the USSR. In the report we deal with the principles and rules of compilation of correlative schemes and with taxonomy of the Quaternary stratigraphy subdivision. Stage subdivisions in the USSR are not used. In the Quaternary we have the Lower, Middle, and Upper Pleistocene and the Holocene, with their characteristic faunal complexes. More detailed subdivisions (horizons) are established on the basis of climatic-stratigraphic criteria. In the scheme of the European USSR five glacial horizons are distinguished. The lower boundary of the Quaternary system in the USSR is recognized beneath the Baku beds (Cromer). Some data suggest that this boundary be lowered.

All the territory of the USSR is divided into 18 natural regions according to the sediment type. A short description of the stratigraphy of each region and some disputable problems are given. A generalized legend for the maps of European USSR is compiled on the basis of the unified scheme. The scheme of the European USSR is fairly well correlated with the schemes of the Alps, Holland, North German Plain, Poland, and Siberia. I believe that the main climatic fluctuations in the Pleistocene were of planetary character, so there is a possibility of intercontinental correlations of stratigraphic schemes.

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GSA Special Papers

International Studies on the Quaternary: Papers Prepared on the Occasion of the VII Congress of the International Association for Quaternary Research Boulder, Colorado, 1965

H. E. Wright, Jr.
H. E. Wright, Jr.
Editors
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David G. Frey
David G. Frey
Editors
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Geological Society of America
Volume
84
ISBN print:
9780813720845
Publication date:
January 01, 1965

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