منابع مشابه
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...
متن کاملEffects of methane outgassing on the Black Sea atmosphere
Effects of methane outgassing on the Black Sea atmosphere K. Kourtidis, I. Kioutsioukis, and S. Rapsomanikis Lab. of Atmospheric Pollution and Pollution Control Engineering of Atmospheric Pollutants, Dept. of Environmental Engineering, Demokritus University of Thrace, 67100 Xanthi, Greece Received: 7 February 2006 – Accepted: 2 March 2006 – Published: 9 May 2006 Correspondence to: K. Kourtidis ...
متن کاملResponse of the Black Sea methane budget to massive short-term submarine inputs of methane
A steady state box model was developed to estimate the methane input into the Black Sea water column at various water depths. Our model results reveal a total input of methane of 4.7 Tg yr−1. The model predicts that the input of methane is largest at water depths between 600 and 700 m (7% of the total input), suggesting that the dissociation of methane gas hydrates at water depths equivalent to...
متن کاملIntroduction to geochemistry of metalliferous black shales
Metalliferous black shales exhibit a wide range of physical and chemical characteristics. They can be enriched in many different metals, and the metals can be in a variety of geochemical states. Depositional and geological histories of these shales are diverse. Some metalliferous black shales contain relatively high concentrations of organic matter whereas others do not. Because of elevated car...
متن کاملAtmospheric methane flux from bubbling seeps: Spatially extrapolated quantification from a Black Sea shelf area
[1] Bubble transport of methane from shallow seep sites in the Black Sea west of the Crimea Peninsula between 70 and 112 m water depth has been studied by extrapolation of results gained through different hydroacoustic methods and direct sampling. Ship-based hydroacoustic echo sounders can locate bubble releasing seep sites very precisely and facilitate their correlation with geological or othe...
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ژورنال
عنوان ژورنال: Deep Sea Research Part A. Oceanographic Research Papers
سال: 1991
ISSN: 0198-0149
DOI: 10.1016/s0198-0149(10)80030-5