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Wednesday, May 6, 2020 | History

3 edition of Seasonal cycling of sulfur and iron in porewaters of a Delaware salt marsh found in the catalog.

Seasonal cycling of sulfur and iron in porewaters of a Delaware salt marsh

George W Luther

Seasonal cycling of sulfur and iron in porewaters of a Delaware salt marsh

by George W Luther

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  • 19 Currently reading

Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC, Springfield, Va .
Written in English


Edition Notes

Statementby George W. Luther, III, and Thomas M. Church
SeriesNASA contractor report -- NASA CR-182385
ContributionsChurch, Thomas M, United States. National Aeronautics and Space Administration
The Physical Object
FormatMicroform
Pagination1 v
ID Numbers
Open LibraryOL14972560M

The present critical review discusses the prevalence and ecological effects of potentially toxic concentrations of sulfide, ammonia, and iron in uncontaminated freshwater sediments, including a review of the literature as well as a case study presenting previously unpublished data on sediment porewaters from a diverse set of shallow (Cited by: Online shopping from a great selection at Books Store. Books Advanced Search New Releases Amazon Charts Best Sellers & More The New York Times® Best Sellers Children's Books Textbooks Textbook Rentals Sell Us Your Books Advanced Search.

Seasonal iron cycling in the salt-marsh sedimentary environment: the importance of ligand complexes with Fe(II) and Fe(III) in the dissolution of Fe(III) minerals and pyrite, respectively Temporal variations of sedimentary sulfur in a Delaware salt marsh. Gregory A. Cutter, David J. stichtingdoel.com by: Characterizing Delaware Bay tidal marshes. Tidal salt marsh is a mosaic of high and low marsh, large and small water bodies, tidal and non-tidal ponds. Each of these contributes a different suite of habitat characteristics desirable to a range of animal species. The high marsh, as mentioned above, attracts unique nesting birds species.

stichtingdoel.com Journal Article: Inorganic and organic sulfur cycling in salt-marsh pore waters Title: Inorganic and organic sulfur cycling in salt-marsh pore waters Full RecordCited by: Glassy carbon electrodes coated with Nafion are used for the ion-exchange voltammetric (IEV) determination of Fe(II) in the pore-waters and acidic extracts of sediments of the lagoon of Venice (Italy). The coated electrodes give reversible voltammetric signals, well resolved from background currents, which can be used for quantitative determinations. The yield of iron extracted by HCl from the Cited by:


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Seasonal cycling of sulfur and iron in porewaters of a Delaware salt marsh by George W Luther Download PDF EPUB FB2

Seasonal cycling of sulfur and iron in porewaters of a Delaware salt marsh. Mar. Chem., An extensive porewater data set has been gathered in the Great Marsh, Delaware over various seasons, salinities and tides.

The data all point to a complimentary redox cycle for sulfur and iron which operates seasonally and stichtingdoel.com by: Seasonal cycling of sulfur and iron in porewaters of a Delaware salt marsh (SuDoc NAS ) [George W. Luther] on stichtingdoel.com *FREE* shipping on qualifying stichtingdoel.com: George W.

Luther. Seasonal cycling of sulfur and iron in porewaters of a Delaware salt marsh. Mar. These results suggest a dynamic seasonal cycling of sulfur in salt marshes involving abiological and biological.

The seasonal cycling of iron and sulfur in a high salt marsh has been studied. We obtained samples before and after the monthly spring tide during the. summer, in vegetated and unvegetated sites, in order to show the effects of the.

seasonal exposure of surface sediments on the iron and sulfur cycles. Get this from a library. Seasonal cycling of sulfur and iron in porewaters of a Delaware salt marsh. [George W Luther; Thomas M Church; United States. National Aeronautics and Space Administration.]. An extensive pore water data set has been gathered in the Great Marsh, Delaware over various seasons, salinities, and tides.

The data all point to a complimentary redox cycle for sulfur and iron which operates seasonally and tidally. Surface oxidizing conditions prevail in summer, with more reducing conditions at depth during the stichtingdoel.com: III George W.

Luther and Thomas M. Church. Luther GW III & Church TM () Seasonal cycling of sulfur and iron in porewaters of a Delaware salt marsh. Mar. Chem. – Google ScholarCited by: Seasonal iron cycling in the salt-marsh sedimentary environment: the importance of ligand complexes with Fe (II) and Fe (III) in the dissolution of Fe (IIl) minerals and pyrite, respectively.

Mar. Chem., A biogeochemical cycle is proposed for the reactivity of iron in salt-marsh stichtingdoel.com by: Speciation of iron and copper in the pore waters of a Delaware salt marsh.

Heavy Metals in the Environment (CEC-WHO Conference), Amsterdam, September (pdf). Buy Seasonal cycling of sulfur and iron in porewaters of a Delaware salt marsh (SuDoc NAS ) by George W. Luther (ISBN:) from Amazon's Book Store. Everyday low prices and free delivery on eligible stichtingdoel.com: George W.

Luther. Porewater species and solid inorganic sulfur speciation were measured before and after the spring tide (which occurs over a 6–7 day period) during a portion of the summer seasons ofand in Great Marsh, Delaware. Samples were taken from two locations in the marsh (near creek and mid-marsh) inhabited by the short form of Spartina alterniflora.

Inpyrite and thiosulfate. Seasonal Cycling of Sulfur and Iron in Porewaters of a Delaware Salt Marsh Dr. George W. Luther, I11 and Dr. Thomas M. Church College of Marine Studies University of Delaware Pilottown Road Lewes, DE February, [NASA-CR) SEASONAL CYCLIHG OF SULFUB N AID IROH IN POREUATERS OF A DELAWARE SALT.

A four month study of a man-made lake used for hydroelectric power generation in northeastern Pennsylvania USA was conducted to investigate seasonal anoxia and the effects of sulfide species being Iron and Sulfur Chemistry in a Stratified Lake: Evidence for Iron-Rich Sulfide Complexes | Springer for Research & DevelopmentCited by: We explore the dynamics of the subsurface sulfur, iron and carbon cycles in salt marsh sediments from East Anglia, United Kingdom.

We report measurements of pore fluid and sediment geochemistry, coupled with results from laboratory sediment incubation experiments, and develop a conceptual model to describe the influence of bioturbation on subsurface redox cycling.

In the studied sediments the Cited by: 2. Temporal variations of sedimentary sulfur in a Delaware salt marsh. Marine Chemistry, Gregory Cutter. David Velinsky. Gregory Cutter. David Velinsky. Download with Google Download with Facebook or download with email.

Temporal variations of sedimentary sulfur in a Delaware salt marsh. A field experiment was conducted on three different water levels and four salinity levels to investigate the effects of water level and salinity on the total sulfur (TS) content of marsh soil in the Cited by: 6.

Solid and colloidal iron oxides are commonly involved in early diagenesis. More readily available soluble Fe(III) should accelerate the cycling of iron (Fe) and sulfur (S) in sediments. Experiments. Abstract. The purple sulfur bacterium Thiocapsa roseopersicina, being the dominant anoxygenic phototroph in microbial mats, was tested for growth on polysulfide as the electron donor for carbon dioxide stichtingdoel.com collected in continuous cultures revealed μ max to be h-1 and the saturation affinity constant K s to be μM.

The value of the inhibition constant K i was estimated in Cited by: An extensive pore water data set has been gathered in the Great Marsh, Delaware over various seasons, salinities, and tides. The data all point to a. Carbonyl sulfide in two estuaries and shelf waters of the western North Atlantic Ocean.

stichtingdoel.com Journal Article: Porewater evidence for a dynamic sedimentary iron cycle in salt marshes Title: Porewater evidence for a dynamic sedimentary iron cycle in salt marshes Full Record.0 10 20 5 6 7 Concentration (mM) pH Fig. 3. (A) Excess SO2-(normalized to seawater C1-) and (B)pHin sediment pore waters ofGreat Marsh during March (l), June (*), and November (U) The excesses ofSO2-relative to seawater and the corresponding minima in pHare evidence ofextensive seasonal sulfide oxidation including chemosynthesis stichtingdoel.com by: Oct 31,  · Continued seagrass declines in ecosystems with improved water quality may be driven by sediment stressors.

One of the most cited examples of a seagrass ecosystem with Cited by: 8.