Earthquake-induced turbidite deposition as a previously unrecognized sink for hydrogen sulfide in the Black Sea sediments

Yucel M., Luther G. W., Moore W. S.

MARINE CHEMISTRY, vol.121, pp.176-186, 2010 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 121
  • Publication Date: 2010
  • Doi Number: 10.1016/j.marchem.2010.04.006
  • Journal Name: MARINE CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.176-186
  • Keywords: Black Sea, Sediments, Sulfur, Iron, Turbidites, ANAEROBIC METHANE OXIDATION, EARLY DIAGENETIC PROCESSES, 125 DEGREES-C, PYRITE FORMATION, SULFUR SPECIATION, SULFATE REDUCTION, AQUEOUS-SOLUTIONS, H2S OXIDATION, IRON, KINETICS
  • Middle East Technical University Affiliated: No

Abstract

The depth profiles of excess Pb-210, Cs-137, elemental sulfur, reactive iron and porewater hydrogen sulfide of a western central basin sediment core in the Black Sea collectively point to the presence of a 20 cm thick reactive iron rich turbidite layer. This layer was most probably deposited there after the 1999 earthquakes in Northwestern Turkey, which caused oxidation of porewater hydrogen sulfide and anomalous accumulation of the product elemental sulfur in the solid phase.