Ammonia After Dark: Constraining Microbial Aerobic Ammonia Oxidation in Mammoth Cave Sediments

Abby Hsiao1, Matt Selensky1, Zoe Vincent1, Rick Toomey2 and Magdalena R Osburn3, (1)Northwestern University, Earth and Planetary Sciences, Evanston, United States, (2)National Park Service, Mammoth Cave National Park, Mammoth Cave, United States, (3)Northwestern University, Earth and Planetary Sciences, Evanston, IL, United States