Search Results - "Shanks, Wayne"

Evidence for Microbial Carbon and Sulfur Cycling in Deeply Buried Ridge Flank Basalt by Lever, Mark A., Rouxel, Olivier, Alt, Jeffrey C., Shimizu, Nobumichi, Ono, Shuhei, Coggon, Rosalind M., Shanks, Wayne C., Lapham, Laura, Elvert, Marcus, Prieto-Mollar, Xavier, Hinrichs, Kai-Uwe, Inagaki, Fumio, Teske, Andreas

“…Sediment-covered basalt on the flanks of mid-ocean ridges constitutes most of Earth's oceanic crust, but the composition and metabolic function of its…”
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Microbial sulfate reduction and the sulfur budget for a complete section of altered oceanic basalts, IODP Hole 1256D (eastern Pacific) by Alt, Jeffrey C., Shanks, Wayne C.

“…Sulfide mineralogy and the contents and isotope compositions of sulfur were analyzed in a complete oceanic volcanic section from IODP Hole 1256D in the eastern…”
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The role of serpentinites in cycling of carbon and sulfur: Seafloor serpentinization and subduction metamorphism by Alt, Jeffrey C., Schwarzenbach, Esther M., Früh-Green, Gretchen L., Shanks, Wayne C., Bernasconi, Stefano M., Garrido, Carlos J., Crispini, Laura, Gaggero, Laura, Padrón-Navarta, José A., Marchesi, Claudio

“…We summarize the uptake of carbon and sulfur during serpentinization of seafloor peridotites, and discuss the fate of these volatiles during subduction of…”
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Geochemistry of hydrothermal fluids from the PACMANUS, Northeast Pual and Vienna Woods hydrothermal fields, Manus Basin, Papua New Guinea by Reeves, Eoghan P., Seewald, Jeffrey S., Saccocia, Peter, Bach, Wolfgang, Craddock, Paul R., Shanks, Wayne C., Sylva, Sean P., Walsh, Emily, Pichler, Thomas, Rosner, Martin

“…Processes controlling the composition of seafloor hydrothermal fluids in silicic back-arc or near-arc crustal settings remain poorly constrained despite…”
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Oxygen and sulfur isotope systematics of sulfate produced by bacterial and abiotic oxidation of pyrite by Balci, Nurgul, Shanks, Wayne C., Mayer, Bernhard, Mandernack, Kevin W.

“…To better understand reaction pathways of pyrite oxidation and biogeochemical controls on δ 18O and δ 34S values of the generated sulfate in acid mine drainage…”
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Oxygen and sulfur isotope systematics of sulfate produced during abiotic and bacterial oxidation of sphalerite and elemental sulfur by Balci, Nurgul, Mayer, Bernhard, Shanks, Wayne C., Mandernack, Kevin W.

“…Studies of metal sulfide oxidation in acid mine drainage (AMD) systems have primarily focused on pyrite oxidation, although acid soluble sulfides (e.g., ZnS)…”
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Sulfur geochemistry of peridotite-hosted hydrothermal systems: Comparing the Ligurian ophiolites with oceanic serpentinites by Schwarzenbach, Esther M., Früh-Green, Gretchen L., Bernasconi, Stefano M., Alt, Jeffrey C., Shanks III, Wayne C., Gaggero, Laura, Crispini, Laura

“…Serpentinization processes at slow- and ultraslow-spreading ridges control the exchange of various elements between seawater and the oceanic lithosphere and…”
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Laboratory chalcopyrite oxidation by Acidithiobacillus ferrooxidans: Oxygen and sulfur isotope fractionation by Thurston, Roland S., Mandernack, Kevin W., Shanks, Wayne C.

“…Laboratory experiments were conducted to simulate chalcopyrite oxidation under anaerobic and aerobic conditions in the absence or presence of the bacterium…”
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Iron isotope fractionation during microbially stimulated Fe(II) oxidation and Fe(III) precipitation by Balci, Nurgul, Bullen, Thomas D., Witte-Lien, Kerstin, Shanks, Wayne C., Motelica, Mikael, Mandernack, Kevin W.

“…Interpretation of the origins of iron-bearing minerals preserved in modern and ancient rocks based on measured iron isotope ratios depends on our ability to…”
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Stable isotope compositions of serpentinite seamounts in the Mariana forearc: Serpentinization processes, fluid sources and sulfur metasomatism by Alt, Jeffrey C., Shanks, Wayne C.

“…The Mariana and Izu–Bonin arcs in the western Pacific are characterized by serpentinite seamounts in the forearc that provide unique windows into the mantle…”
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Identification of sulfur sources and isotopic equilibria in submarine hot-springs using multiple sulfur isotopes by McDermott, Jill M., Ono, Shuhei, Tivey, Margaret K., Seewald, Jeffrey S., Shanks, Wayne C., Solow, Andrew R.

“…Multiple sulfur isotopes were measured in metal sulfide deposits, elemental sulfur, and aqueous hydrogen sulfide to constrain sulfur sources and the isotopic…”
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Fossilized diatoms of siliceous hydrothermal deposits in Yellowstone National Park, USA by Brown, Sabrina R., Fritz, Sherilyn C., Morgan, Lisa A., Shanks, Wayne C.

“…The study of eukaryotic extremophiles is relatively novel, and, therefore, documentation of the structure and function of micro-organisms in continental…”
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Sulfur geochemistry and microbial sulfate reduction during low-temperature alteration of uplifted lower oceanic crust: Insights from ODP Hole 735B by Alford, Susan E., Alt, Jeffrey C., Shanks, Wayne C.

“…Sulfide petrography plus whole rock contents and isotope ratios of sulfur were measured in a 1.5 km section of oceanic gabbros in order to understand the…”
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S-33 constraints on the seawater sulfate contribution in modern seafloor hydrothermal vent sulfides by Ono, Shuhei, Shanks, Wayne C., Rouxel, Olivier J., Rumble, Douglas

“…Sulfide sulfur in mid-oceanic ridge hydrothermal vents is derived from leaching of basaltic-sulfide and seawater-derived sulfate that is reduced during high…”
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Multiple sulfur isotope fractionation and mass transfer processes during pyrite precipitation and recrystallization: An experimental study at 300 and 350°C by Syverson, Drew D., Ono, Shuhei, Shanks, Wayne C., Seyfried, William E.

“…Equilibrium multiple sulfur isotope fractionation factors (33S/32S and 34S/32S) between aqueous SO4, H2S, and coexisting pyrite under hydrothermal conditions…”
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Geochemistry of hot-springs at the SuSu Knolls hydrothermal field, Eastern Manus Basin: Advanced argillic alteration and vent fluid acidity by Seewald, Jeffrey S., Reeves, Eoghan P., Bach, Wolfgang, Saccocia, Peter J., Craddock, Paul R., Walsh, Emily, Shanks, Wayne C., Sylva, Sean P., Pichler, Thomas, Rosner, Martin

“…SuSu Knolls is an area of ongoing magmatic activity and recent volcanism located in the back-arc spreading environment of the Manus Basin in the Bismarck Sea,…”
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Submarine venting of magmatic volatiles in the Eastern Manus Basin, Papua New Guinea by Seewald, Jeffrey S., Reeves, Eoghan P., Bach, Wolfgang, Saccocia, Peter J., Craddock, Paul R., Shanks, Wayne C., Sylva, Sean P., Pichler, Thomas, Rosner, Martin, Walsh, Emily

“…The SuSu Knolls and DESMOS hydrothermal fields are located in the back-arc extensional transform zone of the Eastern Manus Basin. In 2006, highly acidic and…”
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Extreme sulfur isotope fractionation in the Late Devonian Dry Creek volcanogenic massive sulfide deposit, central Alaska by Slack, John F., Shanks, Wayne C., Ridley, W. Ian, Dusel-Bacon, Cynthia, DesOrmeau, Joel W., Ramezani, Jahandar, Fayek, Mostafa

“…The Dry Creek Zn-Pb-Cu-Ag-Au volcanogenic massive sulfide (VMS) deposit, in east-central Alaska, occurs in a Late Devonian sequence of peralkaline rhyolite…”
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Oxygen and Iron Isotope Studies of Magnetite Produced by Magnetotactic Bacteria by Mandernack, Kevin W., Bazylinski, Dennis A., Shanks, Wayne C., Bullen, Thomas D.

“…A series of carefully controlled laboratory studies was carried out to investigate oxygen and iron isotope fractionation during the intracellular production of…”
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Sulfide oxidation and distribution of metals near abandoned copper mines in coastal environments, Prince William Sound, Alaska, USA by Koski, Randolph A., Munk, LeeAnn, Foster, Andrea L., Shanks, Wayne C., Stillings, Lisa L.

“…The oxidation of sulfide-rich rocks, mostly leftover debris from Cu mining in the early 20th century, is contributing to metal contamination of local coastal…”
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