Author pages are created from data sourced from our academic publisher partnerships and public sources.
- Publications
- Influence
Reduction of CO2 during serpentinization of olivine at 300 °C and 500 bar
- M. Berndt, D. Allen, W. Seyfried
- Geology
- 1 April 1996
CO 2 reduction processes occurring during experimental serpentinization of olivine at 300 °C and 500 bar confirm that ultramafic rocks can play an important role in the generation of abiogenic… Expand
Redox evolution and mass transfer during serpentinization : An experimental and theoretical study at 200 °C, 500 bar with implications for ultramafic-hosted hydrothermal systems at Mid-Ocean Ridges
- W. Seyfried, D. Foustoukos, Q. Fu
- Chemistry
- 1 August 2007
Abstract Highly reducing and high-pH vent fluids characterize moderately low temperature ultramafic-hosted hydrothermal systems, such as the recently discovered Lost City hydrothermal field at 30°N… Expand
Hydrothermal serpentinization of peridotite within the oceanic crust: Experimental investigations of mineralogy and major element chemistry
- D. Janecky, W. Seyfried
- Chemistry
- 1 July 1986
Abstract Mantle derived ultramafic rocks form a significant portion of lithosphere created at slow-spreading mid-ocean ridges. These rocks are ubiquitously serpentinized, due at least in part to… Expand
Abiotic formation of hydrocarbons under hydrothermal conditions: Constraints from chemical and isotope data
- Q. Fu, B. Lollar, J. Horita, G. Lacrampe-Couloume, W. Seyfried
- Chemistry
- 15 April 2007
To understand reaction pathways and isotope systematics during mineral-catalyzed abiotic synthesis of hydrocarbons under hydrothermal conditions, experiments involving magnetite and CO{sub 2} and… Expand
An experimental study of alteration of oceanic crust and terrigenous sediments at moderate temperatures (51 to 350°C): Insights as to chemical processes in near-shore ridge-flank hydrothermal systems
- R. James, D. Allen, W. Seyfried
- Geology
- 15 February 2003
Studies of hydrothermal circulation within partly buried basement on the eastern flank of the Juan de Fuca Ridge (JFR) have shown that ridge-flank geochemical fluxes are potentially important for the… Expand
Hydrothermal Fe fluxes during the Precambrian: Effect of low oceanic sulfate concentrations and low hydrostatic pressure on the composition of black smokers [rapid communication]
- L. Kump, W. Seyfried
- Geology
- 15 July 2005
Abstract Modern mid-ocean ridge hydrothermal systems typically release vent fluids to the ocean with dissolved H2S in excess of Fe. These fluids are the consequence of high-temperature interactions… Expand
Hydrocarbons in Hydrothermal Vent Fluids: The Role of Chromium-Bearing Catalysts
- D. Foustoukos, W. Seyfried
- Chemistry, Medicine
- Science
- 14 May 2004
Fischer-Tropsch type (FTT) synthesis has long been proposed to account for the existence of hydrocarbons in hydrothermal fluids. We show that iron- and chromium-bearing minerals catalyze the abiotic… Expand
Serpentinization and heat generation: constraints from Lost City and Rainbow hydrothermal systems
- D. Allen, W. Seyfried
- Geology
- 15 March 2004
Abstract The discovery of ultramafic hosted hydrothermal systems at Rainbow (36°N MAR) and Lost City, a vent site approximately 15 km west of the MAR at 30°N, provides unique perspectives on chemical… Expand
Alteration of the oceanic crust: Implications for geochemical cycles of lithium and boron
- W. Seyfried, D. Janecky, M. Mottl
- Geology
- 1 March 1984
Abstract Fresh tholeiitic basalt glass has been reacted with seawater at 150°C, (water/rock mass ratio of 10), and fresh diabase has been reacted with a Na-K-Ca-Cl fluid at 375°C (water/rock mass… Expand
...
1
2
3
4
5
...