Doklady Earth Sciences

, Volume 473, Issue 1, pp 277–280 | Cite as

First data on the radiocarbon age of the Atelian deposits in the North Caspian Region

  • Yu. P. Bezrodnykh
  • B. F. Romanyuk
  • V. M. Sorokin
  • T. A. Yanina
Geology

Abstract

This paper reports data on the Atelian horizon identified in the Caspian Sea bottom. Seismoacoustic profiling has made it possible to determine its area, position, and setting in the Upper Quaternary sequence and the relation to the host deposits. According to the drillhole core data, the Atelian horizon is composed of continental clay loam and sandy loam containing peatlike organic remains. They are depleted in biogenic residues containing rare freshwater mollusk species. The Atelian deposits were accumulated in lake reservoirs filling the depressions developed in the strata of the Upper Khazarian horizon. The radiocarbon age determined for the first time by humic acids has been used to estimate the Atelian deposition time in the range of 40 000–45 000 calibrated years BP.

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Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • Yu. P. Bezrodnykh
    • 1
  • B. F. Romanyuk
    • 1
  • V. M. Sorokin
    • 2
  • T. A. Yanina
    • 2
  1. 1.Joint Stock Company MorinzhgeologiaRigaLatvia
  2. 2.Faculty of GeologyMoscow State UniversityMoscowRussia

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