NDLI: Methane Content in the Bottom Sediments and Water Column of the Black Sea

Content Provider	Springer Nature Link
Author	Gal'chenko, V. F. Lein, A. Yu. Ivav, M. V.
Copyright Year	2004
Abstract	The methane content in the bottom sediments and water column of the Black Sea was determined using various methods of desorption and analysis of gases and various methods of calculating their concentrations. The head-space method with the use of salting out and calculation by an internal standard proved to be the most accurate procedure for the analysis of methane concentration in bottom sediments. The methane content in bottom sediments increased downward along the sediment thickness. In the upper 50–70 cm of shelf sediments, two minimums of methane concentration were revealed; in deep-sea sediments, only one minimum was recorded (in the 20–50 cm horizons). In the water column, methane concentrations slowly grew from the surface to a depth of 150–200 m and abruptly increased to a depth of 700–1200 m, remaining virtually constant in underlying layers. In certain deep-sea regions, peaks of methane content in the 1000–1200 m horizons of the water column were revealed, which were most probably due to local influx of abyssal waters enriched with this gas.
Starting Page	211
Ending Page	223
Page Count	13
File Format	PDF
ISSN	00262617
Journal	Microbiology
Volume Number	73
Issue Number	2
e-ISSN	16083237
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2004-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Medical Microbiology Microbiology
Content Type	Text
Resource Type	Article
Subject	Microbiology Applied Microbiology and Biotechnology

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