Pleistocene Sea Levels possibly indicated by Buried Black Sediments in the Black Sea

Anaerobic methane oxidation in Black Sea sediments

Anaerobic oxidation of methane (AOM) and sulfate reduction (SRR) were investigated in sediments of the western Black Sea, where methane transport is controlled by diffusion. To understand the regulation and dynamics of methane production and oxidation in the Black Sea, rates of methanogenesis, AOM, and SRR were determined using ra-5 diotracers in combination with pore water chemistry and stable...

Dynamics of the Laschamp geomagnetic excursion from Black Sea sediments

Investigated sediment cores from the southeastern Black Sea provide a high-resolution record from mid latitudes of the Laschamp geomagnetic polarity excursion. Age constraints are provided by 16 AMS C ages, identification of the Campanian Ignimbrite tephra (39.2870.11 ka), and by detailed tuning of sedimentologic parameters of the Black Sea sediments to the oxygen isotope record from the Greenl...

Reactive iron in Black Sea Sediments: implications for iron cycling

Microbial manganese and sulfate reduction in Black Sea shelf sediments.

The microbial ecology of anaerobic carbon oxidation processes was investigated in Black Sea shelf sediments from mid-shelf with well-oxygenated bottom water to the oxic-anoxic chemocline at the shelf-break. At all stations, organic carbon (C(org)) oxidation rates were rapidly attenuated with depth in anoxically incubated sediment. Dissimilatory Mn reduction was the most important terminal elect...

Late-Pleistocene Climates and Deep-Sea Sediments.

Reports Renal Transport of p-Aminohippurate Labeled with Oxygen-18: J. V. Taggart ................................................... 401 Method of Preparing Radioactive Cations for Tracing Ground Water: W. J. Lacey and W. de Laguna ....... ............................ 402 Inhibition of Yeast Hexokinase by Fluoride Ion: N. C. Melchior and J. B. Melchior ...... ........................... 402 Au...