Browsing by Author "Wallmann K."
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Browsing by Author "Wallmann K."
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Aloisi G.; Wallmann K.; Haese R.R.; Saliège J.-F. (2004)Understanding the hydrology of cold seep environments is crucial to perform accurate estimates of fluid and chemical fluxes at sedimentary wedges. Shallow convection processes may affect fluid flux estimates and could favor ...
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Wallmann K. (2001)A new box model for the global carbon-calcium-strontium cycle is developed to simulate the evolution of Cretaceous and Cenozoic seawater and atmosphere. The model accounts for carbon masses in ocean and atmosphere, in ...
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Aloisi G.; Drews M.; Wallmann K.; Bohrmann G. (2004)Significant sediment–ocean chemical fluxes are produced by the expulsion of sedimentary fluids at continental margins. Although such fluxes could play a role in global geochemical cycles, few quantitative estimates of their ...
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Haese R.R.; Wallmann K.; Dahmke A.; Kretzmann U.; Muller P.J.; Schulz H.D. (1997)Iron speciation was determined in hemiplegic sediments from a high productivity area to investigate systematically the early diagenetic reactivity of Fe. A combination of various leaching agents (1 M HCl, dithionite buffered ...
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Kopf A.; Deyhle A.; Gieskes J.M.; Lavrushin V.Y.; Polyak B.G.; Buachidze G.I.; Wallmann K.; Eisenhauer A. (2003)The Caucasian orogenic wedge formed as a consequence of the closure of the Tethyan Ocean, and numerous fields of active mud volcanoes pepper the area adjacent to the Black and Caspian Seas. Stable isotope ratios of boron, ...
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Haeckel M.; Suess E.; Wallmann K.; Rickert D. (2004)Extensive methane hydrate layers are formed in the near-surface sediments of the Cascadia margin. An undissociated section of such a layer was recovered at the base of a gravity core (i.e. at a sediment depth of 120 cm) ...
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Aloisi G.; Wallmann K.; Bollwerk S.M.; Bohrmann G.; Suess E.; Derkachev A. (2004)A numerical model was applied to investigate and quantify the biogeochemical processes fueled by the expulsion of barium and methane-rich fluids in the sediments of a giant cold-seep area in the Derugin Basin (Sea of ...
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Wallmann K. (2001)The turnover of water and 18O in the outer terrestrial sphere is investigated considering mantle degassing, subduction zone processes, hydrothermal circulation at spreading centers, seafloor alteration, and continental ...
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Wallmann K. (2001)The turnover of water and 18O in the outer terrestrial sphere is investigated considering mantle degassing, subduction zone processes, hydrothermal circulation at spreading centers, seafloor alteration, and continental ...
Now showing items 1-9 of 9