iron manganese cycling
1995/12/01· The redox processes regulating transport of Mn in the water column of a eutrophic, dimictic lake (Lake Norrviken, Sweden) are interpreted based on a one-dimensional diffusion-reaction model for Mn(II). It is found that rates and rate constants for oxidation and reduction vary greatly with depth and also with time during the season of …
Sulfate reduction and iron-manganese cycling in intertidal surface sediments of the southern North Sea Dissertation zur Erlangung des Grades eines Doktors der Naturwissenschaften – Dr. rer. nat. – angenommen bei der Fakultät
1998/08/21· Chemical distributions and microbial culture data are combined to identify the biogeochemical pathways that control the cycles of manganese and iron at the oxic−anoxic transition of the Orca Basin. The redox transition coincides with an increase in salinity from 35 to 260‰; hence, mixing diagrams are used to constrain the salinity …
Iron and manganese speciation and cycling in glacially influenced high-latitude fjord sediments (West Spitsbergen, Svalbard): Evidence for a benthic recycling-transport mechanism Author links open overlay panel Laura M. Weann a b Michael J. Formolo b 1 Jeremy D. Owens a 2 Robert Raiswell c Timothy G. Ferdelman b Natascha …
Sulfur cycling, which is primarily driven by sulfate reduction, is tightly interwoven with other important element cycles (carbon, nitrogen, iron, manganese) and therefore has profound implications for both cellular‐ and ecosystem
1992/05/01· Processes controlling the distribution and mobility of Fe and Mn in Lake Sammamish, Washington, a seasonally anoxic lake, are deduced from a year‐long monthly study of physical, chemical, and biolo...
RIJKSUNIVERSITEIT GRONINGEN Cycling of iron and manganese in freshwater, estuarine and deep sea sediments PROEFSCHRIFT ter verkrijging van het doctoraat in de Wiskunde en Natuurwetenschappen aan de Rijksuniversiteit
Iron cycling in a littoral freshwater beach: Implications for floc trace metal dynamics. Journal of Great Lakes Research 2014, 40 (1), 47-57. DOI: 10.1016/j.jglr.2014.01.002.
2018/09/30· This Special Issue will focus on abiotic and biotic processes involved in biogeochemical iron and manganese cycling in soils and sediments. We invite contributions of original research and reviews from all spatial and temporal 2 4 2 ...
Impact of Aeolian Dry Deposition of Reactive Iron Minerals on Sulfur Cycling in Sediments of the Gulf of Aqaba Barak Blonder 1, Valeria Boyko 1, Alexandra V. Turchyn 2, Gilad Antler 2, Uriel Sinichkin 1, Nadav Knossow 1, Rotem Klein 1 …
1997/08/01· Abstract Pore water O 2, NO 3-, Fe 2+ and Mn 2+ and solid phase Fe and Mn profiles were measured in sediments located in four different types of sedimentary environments in the southern and eastern North Sea in …
2005/12/31· The chapter discusses the processes regulating the transformations of iron and manganese in nature and the relationship between the cycling of these and other biologically active elements. Both ...
Iron and manganese cycling in different sedimentary environments on the North Sea continental margin Author links open overlay panel C.P Slomp ∗ J.F.P Malschaert ∗ L Lohse ∗ W Van Raaphorst ∗ Show more
1998/09/03· The mechanism for manganese-catalyzed aqueous autoxidation of hydrogen sulfite at pH 2.4 has been revised on the basis of previous comprehensive kinetic studies and thermodynamic data for iron−manganese redox processes and manganese(II) and -(III) protolysis equilibria. The catalytically active manganese …
Cycling of iron, manganese, and phosphate in a meromictic lake Dug Hongve Cached Download Links  Save to List Add to Collection Correct Errors Monitor Changes by Unknown Authors Summary } ...
2003/12/22· High concentrations of dissolved iron occurred solely under strictly anoxic conditions, while dissolved manganese was unaffected by intrusion of oxygen during the autumnal partial circulation. Mixed potentials caused by oxidation of ferrous iron and reduction of manganic oxide or O 2 controlled the redox potential values, while dissolved manganese …
2009/02/24· Coupled biogeochemical cycling of iron and manganese as mediated by microbial siderophores Owen W. Duckworth 1, John R. Bargar 2 & Garrison Sposito 3 BioMetals volume 22, pages 605 – 613 (2009)Cite this article 757 41 ...
2014/09/01· Glacial environments may provide an important but poorly constrained source of potentially bioavailable iron and manganese phases to the coastal ocean in high-latitude regions. Little is known about the fate and biogeochemical cycling of glacially derived iron and manganese in the coastal marine realm. Sediment and …
A 3‐day shipboard incubation experiment was conducted in the California Current System in July 2014 to investigate the cycling of iron (Fe), copper (Cu), nickel (Ni), cadmium (Cd), manganese (Mn), co...
Iron and manganese speciation and cycling in glacially influenced high-latitude fjord sediments (West Spitsbergen, Svalbard): Evidence for a benthic recycling-transport mechanism By L. Weann, M. Formolo, J. Owens, R. Raiswell, T. Ferdelman, N. Riedinger and T. Lyons
1996/03/01· Cycling of iron and manganese in surface sediments; a general theory for the coupled transport and reaction of carbon, oxygen, nitrogen, sulfur, iron, and manganese The first page of the PDF of this article appears below.
1999/11/01· Read "210 Pb and 210 Po, manganese and iron cycling across the O 2 /H 2 S interface of a permanently anoxic fjord: Framvaren, Norway, Marine Chemistry" on DeepDyve, the largest online rental service for scholarly research
2018/07/30· Request PDF | On Jul 30, 2018, Frantz Ossa Ossa and others published Aerobic iron and manganese cycling in a redox-stratified Mesoarchean epicontinental sea | Find, read and cite all the research ...
Goldschmidt2017 Abstract Carbon, manganese, iron, and sulfur cycling in oligohaline sediments B. THAMDRUP1*, H.S. WEBER1, E. …
Thesis: Ion interactions at the mineral-water interface during biogeochemical iron & manganese cycling Sewanee: The University of the South B.S. Chemistry (2005-2009) Research Advsior: Robert E. Bachman
2015/06/19· Sedimentary manganese, iron, and sulfur cycling were investigated on the LCS using a combined chemical analysis and sediment diagenesis modeling approach. Three stations situated 320 km across the LCS along the 20 m
Cycling of iron, manganese, and phosphate in a meromictic lake Dug Hongve National Institute of Public Health, PO. Box 4404 Torshor, N-0403 Oslo, Norway Abstract Lake Nordbytjernet (Southeast Norway) had
Iron and manganese speciation and cycling in glacially inﬂuenced high-latitude fjord sediments (West Spitsbergen, Svalbard): Evidence for a benthic recycling-transport mechanism Laura M. Weanna,b,, Michael J. Formolob,1, Jeremy D. Owensa,2, ...
2013/08/30· New research has provided knowledge of how phosphate ion incorporated in iron-containing minerals impacts the speciation of iron and cycling of carbonate ion (a common form of carbon in the subsurface).
Iron isotopes constrain biogeochemical redox cycling of iron and manganese in a Palaeoproterozoic stratified basin Author links open overlay panel Harilaos Tsikos a Alan Matthews b Yigal Erel b John M. Moore a Show more ca. ...
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