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Lein, Alla Yu; Rusanov, Igor I; Pavlova, Galina A; Dara, O M; Verkhovskaya, Z I; Zakharova, E E; Yusupov, Sergey K; Ivanov, Mikhail V (2011): Bitumoids and methane in bottom sediments of the northeast Black Sea [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.786300, Supplement to: Lein, AY et al. (2011): Energy sources for diagenesis: Evidence from the Black Sea. Translated from Litologlya i Poleznye Iskopaemye, 2011, 2, 154-169, Lithology and Mineral Resources, 46(2), 135-150, https://doi.org/10.1134/S0024490211020064

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Abstract:
Complex investigations of recent and ancient Black Sea sediments from the outer shelf, continental slope, and deep-water basin of the Russian Black Sea sector have been carried out. Samples were collected during Cruise 100 of R/V Professor Shtokman organized by the P.P. Shirshov Institute of Oceanology (March 2009) and expedition of UZHMORGEO (summer 2006). Rates of the main anaerobic processes during diagenesis (sulfate reduction, dark CO2 assimilation, methanogenesis, and methane oxidation) were studied for the first time in sediment cores of the studied area. Two peaks in the rate of microbial processes and two sources of these processes were identified: the upper peak near the water-sediment contact is related to solar energy (OM substrate of the water column) and the lower peak at the base of ancient Black Sea sediments with high(>1 mmol) methane concentration related to energy of anaerobic methane oxidation. New labile OM formed during this process is utilized by other groups of microorganisms. According to experimental data, daily rate of anaerobic methane oxidation is many times higher than that of methanogenesis, which unambiguously indicates migration nature of the main part of methane.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: 43.820950 * Median Longitude: 37.498688 * South-bound Latitude: 42.901000 * West-bound Longitude: 36.500000 * North-bound Latitude: 44.701000 * East-bound Longitude: 38.935000
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
4 datasets

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Datasets listed in this publication series

  1. Lein, AY; Rusanov, II; Pavlova, GA et al. (2011): (Table 1) Content and composition of chloroform bitumoids in organic matter from bottom sediments of the northeast Black Sea. https://doi.org/10.1594/PANGAEA.786269
  2. Lein, AY; Rusanov, II; Pavlova, GA et al. (2011): (Table 2) Methane concentrations in recent bottom sediments from the outer shelf and pelagic zone of the northeast Black Sea. https://doi.org/10.1594/PANGAEA.786277
  3. Lein, AY; Rusanov, II; Pavlova, GA et al. (2011): (Table 3) Methane concentrations in bottom sediments from different geomorphological zones of the northeast Black Sea. https://doi.org/10.1594/PANGAEA.786286
  4. Lein, AY; Rusanov, II; Pavlova, GA et al. (2011): (Table 4) Methane concentrations in bottom sediments from polygon stations of the YUZHMORGEO expedition in summer 2006. https://doi.org/10.1594/PANGAEA.786297