The Potential Role of Sediment Iron and Sulfur Speciation in ...

The iron paleoredox proxies: A guide to the pitfalls, problems and ...

... iron. 523 problems and proper practice. Page 34. monosulfide in euxinic marine sediments and the role of H2S in iron sulfide transformations: Examples from ...

Energy Harvesting, Electrode Processes and the Partitioning ... - DTIC

Partitioning and Speciation of Solid Phase Iron and Sulfur in Marine ... SIGNIFICANCE: Sediment fuel cells have potential for wide application as long ...

Sediment microbial fuel cells as a barrier to sulfide accumulation ...

While dissolved sulfide is highly toxic, FeS minerals are not. A similar iron cycling mechanism plays a role in the recently described cable ...

Iron and sulfide nanoparticle formation and transport in nascent ...

The persistence of nanoparticulate pyrite demonstrates that it is an important mechanism for near-vent Fe stabilisation and highlights the potential role of ...

Unraveling the Mineralogical Complexity of Sediment Iron ...

The guiding principles behind the iron speciation proxy are that the solubilized minerals included in. FeHR are highly reactive to sulfide on diagenetic time ...

Sulfur speciation in marine sediments impacted by gas emissions in ...

Three cores of marine sediments from the Shenhu area in the northern part of the South China Sea were analyzed by XANES analysis for sulfur ...

Sulfur Cycling in an Iron Oxide-Dominated, Dynamic Marine ...

The interplay between sediment deposition patterns, organic matter type and the quantity and quality of reactive mineral phases determines the ...

Spatial–Temporal Distribution and Interrelationship of Sulfur ... - MDPI

Altogether, these findings suggest that the sulfur–iron cycling can determine the amount of dissolved sulfides that accumulate in sediments. Hence, artificially ...

Complex Microbial Communities Drive Iron and Sulfur Cycling in ...

isotopic composition of sulfur species in glacially influenced fjord sediments of west Svalbard. ... Potential role of a novel ...

Speciation of Iron in the Aquatic Environment - jstor

(2006) Sulfur. Iron-Carbon Geochemistry in Sediments of The Demerara Rise. In ... Saeedi, M.; Daneshvar, Sh.; Karbassi, A. R. (2004) Role of Riverine. Sediment ...

Coupled dynamics of iron and phosphorus in sediments of an ...

Studies of phosphorus (P) dynamics in surface sediments of lakes and coastal seas typically emphasize the role of coupled iron (Fe), sulfur (S) and P ...

Development of Iron Speciation Reference Materials for ... - OceanRep

Iron (Fe) speciation has emerged as one of the most widely used procedures to distinguish different redox regimes in both the water column and sediments, and is ...

Effects of sediment iron mineral composition on microbially ... - CORE

(2003) observed the importance of such microheterogeneities, and used observations of preferential FeIII reduction in heteroge- neous regions to demonstrate ...

Bistability in the redox chemistry of sediments and oceans - PNAS

Combining observational evidence with biogeochemical modeling, we show that both sedimentary and aquatic systems display intrinsic iron–sulfur ...

Application, Chemical Interaction and Fate of Iron Minerals in ...

Sediment redox conditions govern the Fe mineralogy, and a detailed description is given for Fe mineral interactions with contaminants in both ...

Anaerobic oxidation of methane alters sediment records of - BG

Our results. 33 reveal that methane plays a key role in the diagenetic alterations of Fe, S and P records in Black Sea sediments. The. 34 downward sulfidization ...

Seasonal variations in pore water and sediment geochemistry of ...

This study clearly demonstrates that near-surface lake sediment pore water redox stratification and associated solid phase geochemistry vary significantly with ...

Iron and sulfur speciation in some sedimentary-transformation ... - Gale

The results showed systematical change in redox conditions between the ore rocks and their associated host rocks. All ore samples contained more ...

Microscale Characterization of Sulfur Speciation in Lake Sediments SI

sulfide can occur at the oxic-anoxic interface via both abiotic and biotic pathways, including chemical oxidation by oxygen, nitrate, or iron and manganese ...

Reassessing the role of sulfur geochemistry on arsenic speciation in ...

The influence of sulfur and iron on dissolved arsenic concentrations in the shallow subsurface under changing redox conditions. · Environmental Science.