Search Results - "Kirk, Matthew F"

pH as a Primary Control in Environmental Microbiology: 1. Thermodynamic Perspective by Jin, Qusheng, Kirk, Matthew F.

“…pH influences the occurrence and distribution of microorganisms. Microbes typically live over a range of 3 to 4 pH units and are described as acidophiles,…”
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pH as a Primary Control in Environmental Microbiology: 2. Kinetic Perspective by Jin, Qusheng, Kirk, Matthew F.

“…In a companion paper, we examined the thermodynamic responses of microbial redox reactions to pH changes. Here we explore how these thermodynamic responses may…”
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Dissolved fulvic acids from a high arsenic aquifer shuttle electrons to enhance microbial iron reduction by Kulkarni, Harshad V., Mladenov, Natalie, McKnight, Diane M., Zheng, Yan, Kirk, Matthew F., Nemergut, Diana R.

“…It was demonstrated more than two decades ago that microorganisms use humic substances, including fulvic acid (FA), as electron shuttles during iron (Fe)…”
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Variation in Energy Available to Populations of Subsurface Anaerobes in Response to Geological Carbon Storage by Kirk, Matthew F

“…Microorganisms can strongly influence the chemical and physical properties of the subsurface. Changes in microbial activity caused by geological CO2 storage,…”
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Thermodynamic and Kinetic Response of Microbial Reactions to High CO2 by Jin, Qusheng, Kirk, Matthew F.

“…Geological carbon sequestration captures CO 2 from industrial sources and stores the CO 2 in subsurface reservoirs, a viable strategy for mitigating global…”
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Comparison of fluid geochemistry and microbiology of multiple organic-rich reservoirs in the Illinois Basin, USA: Evidence for controls on methanogenesis and microbial transport by Schlegel, Melissa E., McIntosh, Jennifer C., Bates, Brittney L., Kirk, Matthew F., Martini, Anna M.

“…Microbial methane in sedimentary basins comprises approximately 20% of global natural gas resources, yet little is known about the environmental requirements…”
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Geochemical Influence on Microbial Communities at CO2-Leakage Analog Sites by Ham, Baknoon, Choi, Byoung-Young, Chae, Gi-Tak, Kirk, Matthew F., Kwon, Man Jae

“…Microorganisms influence the chemical and physical properties of subsurface environments and thus represent an important control on the fate and environmental…”
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Impact of commercial natural gas production on geochemistry and microbiology in a shale-gas reservoir by Kirk, Matthew F., Martini, Anna M., Breecker, Daniel O., Colman, Daniel R., Takacs-Vesbach, Cristina, Petsch, Steven T.

“…We consider the effect that commercial gas production has had on microbiology and water and gas geochemistry in the northern producing trend of the Antrim…”
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Solute Concentrations Influence Microbial Methanogenesis in Coal-bearing Strata of the Cherokee Basin, USA by Kirk, Matthew F, Wilson, Brien H, Marquart, Kyle A, Zeglin, Lydia H, Vinson, David S, Flynn, Theodore M

“…Microorganisms have contributed significantly to subsurface energy resources by converting organic matter in hydrocarbon reservoirs into methane, the main…”
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Stable Bromine Isotopic Composition of Coal Bed Methane (CBM) Produced Water, the Occurrence of Enriched 81Br, and Implications for Fluid Flow in the Midcontinent, USA by Randy L. Stotler, Matthew F. Kirk, K. David Newell, Robert H. Goldstein, Shaun K. Frape, Rhys Gwynne

“…This study characterizes the δ37Cl, δ81Br, and 87Sr/86Sr of coal bed methane produced fluids from Pennsylvanian Cherokee Group coals of the Cherokee Basin in…”
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Effects of natural non-volcanic CO2 leakage on soil microbial community composition and diversity by Park, Kanghyun, Kim, Chan Yeong, Kirk, Matthew F., Chae, Gitak, Kwon, Man Jae

“…Geological carbon capture and storage (CCS) can reduce anthropogenic CO2 emissions, but questions exist about impacts at the surface if CO2 leaks from deep…”
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Predicting algal blooms: Are we overlooking groundwater? by Brookfield, Andrea E., Hansen, Amy T., Sullivan, Pamela L., Czuba, Jonathan A., Kirk, Matthew F., Li, Li, Newcomer, Michelle E., Wilkinson, Grace

“…Significant advances in understanding and predicting freshwater algal bloom dynamics have emerged in response to both increased occurrence and financial burden…”
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Effect of CO2 on biogeochemical reactions and microbial community composition in bioreactors with deep groundwater and basalt by Choi, Byoung-Young, Park, Jinyoung, Ham, Baknoon, Kirk, Matthew F., Kwon, Man Jae

“…Changes in subsurface microbiology following CO2 injection have the potential to impact carbon trapping in CO2 storage reservoirs. However, much remains to be…”
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Changes in Water Age During Dry‐Down of a Non‐Perennial Stream by Swenson, Logan J., Zipper, Sam, Peterson, Delaney M., Jones, C. Nathan, Burgin, Amy J., Seybold, Erin, Kirk, Matthew F., Hatley, Camden

“…Non‐perennial streams, which lack year‐round flow, are widespread globally. Identifying the sources of water that sustain flow in non‐perennial streams is…”
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Microbiological Response to Well Pumping by Kwon, Man Jae, Sanford, Robert A, Park, Jungho, Kirk, Matthew F, Bethke, Craig M

“…To better constrain sampling strategies for observing biologically sensitive parameters in ground water, we vigorously pumped for 120 h a lightly pumped well…”
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Experimental analysis of arsenic precipitation during microbial sulfate and iron reduction in model aquifer sediment reactors by Kirk, Matthew F., Roden, Eric E., Crossey, Laura J., Brealey, Adrian J., Spilde, Michael N.

“…Microbial SO 4 2− reduction limits accumulation of aqueous As in reducing aquifers where the sulfide that is produced forms minerals that sequester As. We…”
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Broad-Scale Evidence That pH Influences the Balance Between Microbial Iron and Sulfate Reduction by Kirk, Matthew F., Jin, Qusheng, Haller, Ben R.

“…Understanding basic controls on aquifer microbiology is essential to managing water resources and predicting impacts of future environmental change. Previous…”
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Spatiotemporal variation in runoff and baseflow in watersheds located across a regional precipitation gradient by Waterman, Breanna Rivera, Alcantar, Gonzalo, Thomas, Samantha G., Kirk, Matthew F.

“…Regional precipitation gradient across Kansas, USA. As precipitation increases, baseflow and surface runoff generally increase, but it is unclear whether they…”
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Influence of upwelling saline groundwater on iron and manganese cycling in the Rio Grande floodplain aquifer by Kirk, Matthew F., Crossey, Laura J., Takacs-Vesbach, Cristina, Newell, Dennis L., Bowman, Robert S.

“…Salinity contributions from upwelling groundwater significantly degrade water quality in the Rio Grande, a major source of water for the southwestern USA. This…”
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Substantial contribution of biomethylation to aquifer arsenic cycling by Maguffin, Scott C., Kirk, Matthew F., Daigle, Ashley R., Hinkle, Stephen R., Jin, Qusheng

“…Arsenic in aquifers is transformed by biological and abiotic reactions. Field measurements and laboratory experiments suggest that the microbial methylation of…”
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