Global ETD Search
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Showing 1 to 9 of 9 for “"organic matter remineralization"”.
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Organic matter remineralization in the sediment of two acid mine drainage lakes
… and Green Lake (pH 7.4) to determine the rate of organic matter is remineralization in the sediments of both lakes. Pore water equilibrators were used to obtain concentration depth profiles of ferrous iron (Fe2+), sulfate (SO42-), manganese (Mn2+), and dissolved inorganic carbon (DIC) and to model …
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Organic matter remineralization in coastal sediments in and around Kane‘ohe Bay, Hawaiʻi
… via the burial or release of nutrients through organic matter (OM) remineralization during diagenesis. The decomposition and burial of OM in sediments are key processes influencing biogeochemical cycles of nutrients (nitrogen, phosphorus) and carbon in coastal waters on time scales ranging from …
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Pore water biogeochemistry and trace metal dynamics in deep intertidal flat sediments
… nutrients were studied for the identification of organic matter remineralization pathways. Differences in sediment structure and hydrological conditions explain spatial variations in pore water depth profiles of margins compared to central parts of tidal flats as well as of sand and mixed flats. …
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The cobalt cycle in the Tropical Pacific Ocean
… by three processes: 1) a cobalt supply from organic matter remineralization, 2) an amplified sedimentary source from oxygen-depleted coastlines, and 3) low-oxygen inhibition of manganese oxidation, which scavenges cobalt from the water column. Rates of scavenging are calculated from a global …
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The cobalt cycle in the tropical Pacific Ocean
… by three processes: 1) a cobalt supply from organic matter remineralization, 2) an amplified sedimentary source from oxygen-depleted coastlines, and 3) low-oxygen inhibition of manganese oxidation, which scavenges cobalt from the water column. Rates of scavenging are calculated from a global …
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Shelf biogeochemical interactions and feedback processes in the Benguela upwelling system
… N* anomalies off Walvis Bay are attributed to organic matter remineralization in deep, offshore stations. In contrast, increased phosphate (P*) concentrations occur in surface and subsurface waters. Phosphate is regenerated in subsurface waters and released under suboxic-anoxic conditions …
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The remineralization of marine organic matter by diverse biological and abiotic processes
… invoked as the dominant mass-balance sink for organic matter in the upper ocean, many other biological and abiotic processes can degrade particulate and dissolved substrates on globally significant scales. The relative strengths of these other remineralization processes — including mechanical …
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The remineralization of marine organic matter by diverse biological and abiotic processes
… invoked as the dominant mass-balance sink for organic matter in the upper ocean, many other biological and abiotic processes can degrade particulate and dissolved substrates on globally significant scales. The relative strengths of these other remineralization processes - including mechanical …
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Earth’s oceanic oxygen history from Phanerozoic to Pleistocene glacial cycles: insights from the carbonate iodine-to-calcium proxy
… at ~200 Ma, likely driven by a shift in organic matter remineralization to greater depths, which may be due to increasing size and biomineralization of eukaryotic plankton.</p> <p>2) Planktic foraminiferal I/Ca proxy in the Southeast Atlantic Ocean.</p> <p>Planktic foraminiferal I/Ca is a …