1. bookVolume 38 (2011): Issue 2 (June 2011)
Journal Details
License
Format
Journal
eISSN
1897-1695
First Published
04 Jul 2007
Publication timeframe
1 time per year
Languages
English
access type Open Access

Concordant 210Pb and 137Cs ages of black sea anoxic unconsolidated sediments

Published Online: 20 Mar 2011
Volume & Issue: Volume 38 (2011) - Issue 2 (June 2011)
Page range: 101 - 106
Journal Details
License
Format
Journal
eISSN
1897-1695
First Published
04 Jul 2007
Publication timeframe
1 time per year
Languages
English
Abstract

Two independent geochronologic radiometric methods: 137Cs and 210Pb were used to determine the sedimentation rate and subsequently to date the oldest sediments of a 50 cm core containing unconsolidated sediments collected at a depth of 600 m below sea surface in the anoxic zone of the Western Black Sea, off the Romanian town of Constanta. Both methods gave coincident value within experimental uncertainties of 0.42±0.20 mm·y−1 for 137Cs and 0.49±0.03 mm·y−1 in the case of 210Pb, within the Constant Initial Concentration model, which gave for the lower most sediments an age of 1.00±0.01 ka. The constant sedimentation model as well as the possible causes of observed discrepancy between experimental uncertainties are discussed.

Keywords

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