Randall Debes
Arizona State University
4 Papers
Randall Debes is an academic researcher from Arizona State University. The author has contributed to research in topics: Abiotic component & Iron bacteria. The author has an hindex of 3, co-authored 4 publications.
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Papers
Theoretical Predictions Versus Environmental Observations on Serpentinization Fluids: Lessons From the Samail Ophiolite in Oman
J. A. M. Leong,J. A. M. Leong,A. E. Howells,Kirtland J. Robinson,Alysia Cox,Randall Debes,Kristopher M. Fecteau,Panjai Prapaipong,Everett L. Shock +8 more
TL;DR: In this article, the authors provide valuable insights into the reactions that drive the profound fluid transformations during serpentinization, where surface fluids are transformed into some of the most important components.
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Probing the geological source and biological fate of hydrogen in Yellowstone hot springs.
Melody R. Lindsay,Daniel R. Colman,Maximiliano J. Amenabar,Kirsten E. Fristad,Kristopher M. Fecteau,Randall Debes,John R. Spear,Everett L. Shock,Tori M. Hoehler,Eric S. Boyd +9 more
TL;DR: Analysis of 50 metagenomes from a variety of YNP springs reveals that genes encoding oxidative hydrogenases are enriched in communities inhabiting springs sourced with vapor-phase gas, suggesting a link between geologic processes that generate and source H2 to hot springs and the distribution of organisms that use H1 to generate energy.
Seasonal hydrologic and geologic forcing drive hot spring geochemistry and microbial biodiversity.
Daniel R. Colman,Melody R. Lindsay,Annette Harnish,Evan M. Bilbrey,Maximiliano J. Amenabar,Matthew J. Selensky,Kristopher M. Fecteau,Randall Debes,Matthew B. Stott,Everett L. Shock,Eric S. Boyd +10 more
TL;DR: In this paper, the influence of temporal hydrologic and geologic change on hot spring biodiversity is unknown, but the authors show that changes in short-term hydrology associated with precipitation can impact hot spring geochemistry and microbial biodiversity.
Distinguishing Biotic and Abiotic Iron Oxidation at Low Temperatures
Brian St Clair,Justin Pottenger,Randall Debes,Kurt W. Hanselmann,Everett L. Shock +4 more
- 16 May 2019
TL;DR: In this paper, the rates of microbial and abiotic iron oxidation were determined in a variety of cold (T = 9-12 °C), circumneutral (pH = 5.5-9.0) environments in the Swiss Alps.