The dataset for the chronology of the sedimentation in the Danube abyssal fan which records the major episodes of the late-Holocene Black Sea evolution

Maria Ilie; Tiberiu Sava; Gabriela Cristea; Gabriel Ion; Dan Olteanu; Cristian Mănăilescu; Gabriela Sava

doi:10.1016/j.dib.2022.108444

The dataset for the chronology of the sedimentation in the Danube abyssal fan which records the major episodes of the late-Holocene Black Sea evolution

Data Brief. 2022 Jul 7:43:108444. doi: 10.1016/j.dib.2022.108444. eCollection 2022 Aug.

Authors

Maria Ilie^{1

2}, Tiberiu Sava¹, Gabriela Cristea³, Gabriel Ion⁴, Dan Olteanu^{1

5}, Cristian Mănăilescu¹, Gabriela Sava¹

Affiliations

¹ RoAMS Laboratory, Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, Reactorului 30, Măgurele Bucharest 077125, Romania.
² University of Bucharest, Faculty of Physics, Doctoral School of Physics, 405 Atomiștilor str. Ilfov, Măgurele 077125, Romania.
³ Department of Mass Spectrometry, Chromatography and Applied Physics, National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj-Napoca, Romania.
⁴ National Institute of Marine Geology and Geo-Ecology (GeoEcoMar), 23-25 Dimitrie Onciul St., Bucharest 024053, Romania.
⁵ University of Bucharest, Faculty of Geography, N. Bălcescu, Bucharest, Romania.

Abstract

Anoxic marine sediments at the confluence with large rivers are key archives for monitoring the anthropogenic impact in the environment and asses the carbon sink character of oxygen deprived waters. This data article describes the analysis methodology and the results of the deep-sea sediments sampled from the NW part of the Black Sea, using the ¹⁴C dating, stable carbon isotopes, C/N ratio, metallic traces and ²¹⁰Pb and ¹³⁷Cs radioactivity. For this purpose, 26 sediment samples were taken from the MN183-3 sampling point (43.925.917 N, 30.758.911 E, 658 m water depth) using a Mark II-400-type multicorer. The samples were collected during the two weeks Mare Nigrum (MN) #183 marine expedition, which took place at the beginning of September 2018, in the Romanian section of the Black Sea shelf and continental slope. These analyses were employed in the construction of a Bayesian high-resolution sedimentation model, reported in M.Ilie et al. (2022).

Keywords: Age-depth modelling; Anoxic sediments; Black Sea; Organic matter; Sedimentation rate.