Search Results - "Omelon, Christopher R"

A new analysis of Mars "Special Regions": findings of the second MEPAG Special Regions Science Analysis Group (SR-SAG2) by Rummel, John D, Beaty, David W, Jones, Melissa A, Bakermans, Corien, Barlow, Nadine G, Boston, Penelope J, Chevrier, Vincent F, Clark, Benton C, de Vera, Jean-Pierre P, Gough, Raina V, Hallsworth, John E, Head, James W, Hipkin, Victoria J, Kieft, Thomas L, McEwen, Alfred S, Mellon, Michael T, Mikucki, Jill A, Nicholson, Wayne L, Omelon, Christopher R, Peterson, Ronald, Roden, Eric E, Sherwood Lollar, Barbara, Tanaka, Kenneth L, Viola, Donna, Wray, James J

“…A committee of the Mars Exploration Program Analysis Group (MEPAG) has reviewed and updated the description of Special Regions on Mars as places where…”
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Paleo-Hydrothermal Predecessor to Perennial Spring Activity in Thick Permafrost in the Canadian High Arctic, and Its Relation to Deep Salt Structures: Expedition Fiord, Axel Heiberg Island, Nunavut by LeFort, Darren, Hanley, Jacob, Omelon, Christopher R., Zentilli, Marcos

“…It is surprising to encounter active saline spring activity at a constant 6°C temperature year-round not far away from the North Pole, at latitude 79°24′N,…”
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Localization and chemical speciation of cadmium in the roots of barley and lettuce by Akhter, Mst. Fardausi, Omelon, Christopher R., Gordon, Robert A., Moser, Desmond, Macfie, Sheila M.

“…•We examined the localization and speciation of Cd in lettuce and barley roots.•Radial movement of Cd was blocked by more effective barriers in roots of…”
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Characterization of Microbial Mat Microbiomes in the Modern Thrombolite Ecosystem of Lake Clifton, Western Australia Using Shotgun Metagenomics by Warden, John G, Casaburi, Giorgio, Omelon, Christopher R, Bennett, Philip C, Breecker, Daniel O, Foster, Jamie S

“…Microbialite-forming communities interact with the environment and influence the precipitation of calcium carbonate through their metabolic activity. The…”
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The importance of groundwater flow to the formation of modern thrombolitic microbialites by Warden, John G., Coshell, Lee, Rosen, Michael R., Breecker, Daniel O., Ruthrof, Katinka X., Omelon, Christopher R.

“…Modern microbialites are often located within groundwater discharge zones, yet the role of groundwater in microbialite accretion has yet to be resolved. To…”
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Thermophilic Archaeal Diversity and Methanogenesis from El Tatio Geyser Field, Chile by Plenge, Megan F., Engel, Annette S., Omelon, Christopher R., Bennett, Philip C.

“…The hydrothermal fluid chemistry at El Tatio Geyser Field (ETGF) in northern Chile suggests that biogenic CO 2 -CH 4 cycling may play an important role in…”
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Microstructure variability in freshwater microbialites, Pavilion Lake, Canada by Omelon, Christopher R., Brady, Allyson L., Slater, Greg F., Laval, Bernard, Lim, Darlene S.S., Southam, Gordon

“…Calcite microbialites in Pavilion Lake, British Columbia, exhibit a diverse range in macro-morphology, biomass abundance, porosity, and mineral content. To…”
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Characterization of Microbial Communities Hosted in Quartzofeldspathic and Serpentinite Lithologies in Jeffrey Mine, Canada by Ronholm, Jennifer, Goordial, Jacqueline, Sapers, Haley M, Izawa, Matthew R M, Applin, Daniel M, Pontefract, Alexandra, Omelon, Christopher R, Lamarche-Gagnon, Guillaume, Cloutis, Edward A, Whyte, Lyle G

“…The microbial ecology and activity of serpentine deposits and associated hydrated minerals are largely unknown. Previous research has largely focused on…”
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Inorganic Species Distribution and Microbial Diversity within High Arctic Cryptoendolithic Habitats by Omelon, Christopher R, Pollard, Wayne H, Ferris, F. Grant

“…Cryptoendolithic habitats in the Canadian high Arctic are associated with a variety of microbial community assemblages, including cyanobacteria, algae, and…”
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Limestone Corrosion by Neutrophilic Sulfur-Oxidizing Bacteria: A Coupled Microbe-Mineral System by Steinhauer, Elspeth S., Omelon, Christopher R., Bennett, Philip C.

“…Subsurface karst aquifers receiving sulfidic water can host complex chemolithotrophic microbial communities that are capable of dissolving limestone, forming…”
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Caves in caves: evolution of post-depositional macroholes in stalagmites by Shtober-Zisu, N, Schwarcz, H P, Chow, T, Omelon, C R, Southam, G

“…In a previous paper (Shtober-Zisu et al., 2012), the authors described millimeter to centimetersized fluid-free holes within the interiors of stalagmites of…”
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Environmental controls on microbial colonization of high Arctic cryptoendolithic habitats by OMELON, Christopher R, POLLARD, Wayne H, FERRIS, F. Grant

“…Sandstone outcrops around Eureka, Ellesmere Island, Nunavut (80°N) in the Canadian high Arctic are host to abundant cryptoendolithic microbial communities…”
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Isolation and characterization of a CO2-tolerant Lactobacillus strain from Crystal Geyser, Utah, U.S.A by Santillan, Eugenio-Felipe U., Shanahan, Timothy M., Omelon, Christopher R., Major, Jonathan R., Bennett, Philip C.

“…When CO2 is sequestered into the deep subsurface, changes to the subsurface microbial community will occur. Capnophiles, microorganisms that grow in CO2-rich…”
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A geochemical evaluation of perennial spring activity and associated mineral precipitates at Expedition Fjord, Axel Heiberg Island, Canadian High Arctic by Omelon, Christopher R., Pollard, Wayne H., Andersen, Dale T.

“…Two groups of perennial springs are observed in the Canadian High Arctic at Expedition Fjord on Axel Heiberg Island at Colour Peak and Gypsum Hill. Saline…”
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Seasonal formation of ikaite (caco 3 · 6h 2o) in saline spring discharge at Expedition Fiord, Canadian High Arctic: Assessing conditional constraints for natural crystal growth by Omelon, Christopher R, Pollard, Wayne H, Marion, Giles M

“…—Spring discharge at Expedition Fiord (Pollard et al., 1999) on Axel Heiberg Island in the Canadian High Arctic produces a variety of travertine forms in…”
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Endolithic Microbial Communities in Polar Desert Habitats by Omelon, Christopher R.

“…Microorganisms inhabiting terrestrial endolithic habitats are widespread in polar environments including the Antarctic Dry Valleys and the Canadian high…”
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Isolation and characterization of a CO2-tolerant Lactobacillus strain from Crystal Geyser, Utah, U.S.A by Santillan, Eugenio-Felipe U., Shanahan, Timothy M., Omelon, Christopher R., Major, Jonathan R., Bennett, Philip C.

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Chemical and Ultrastructural Characterization of High Arctic Cryptoendolithic Habitats by Omelon, Christopher R., Pollard, Wayne H., Ferris, F. Grant

“…Cryptoendolithic habitats in the Canadian high Arctic are host to a diverse assemblage of microorganisms including cyanobacteria, algae, fungi and…”
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Corrigendum: Isolation and characterization of a CO2-tolerant Lactobacillus strain from Crystal Geyser, Utah, U.S.A by Santillan, Eugenio-Felipe U., Shanahan, Timothy M., Omelon, Christopher R., Major, Jonathan R., Bennett, Philip C.

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