EVENT DETAILS
ABSTRACT Soil is major repository of carbon in the Earth surface system, and soil biogeochemical processes play an important role on the cycling of this carbon pool. There is growing interest on how different soils respond to increases in temperature and influence the soil carbon stocks, changes to subsurface biogeochemical processes, and associated surface and subsurface water quality. Mineral organic molecule interactions (through surface interactions and structural incorporation) dominate over other processes below a few centimeters from the surface in most soils, and are expected to be the important mechanisms influencing soil carbon storage. We examined interactions of organic carbon with common soil minerals in their ability to retain as well as breakdown of organic carbon. Our studies show that all minerals play a dual role, and the duality is influenced by the mineral type, organic molecule composition, and changes in hydrogeochemistry. A discussion on why organic molecules dance to the mineral choreography will be presented.
BIO Satish Myneni is a geochemist and a faculty member in the Department of Geosciences at Princeton University. He is also an affiliated faculty member of the Departments of Chemistry & Civil & Environmental Engineering, and Environmental, Materials and Energy Institutes. He received his PhD from The Ohio State University in environmental chemistry. All other degrees are from India (Indian Institute of Technology, Osmania University). His research group focuses on the biogeochemistry of mineral-water interfaces in the terrestrial and marine environments, and links molecular mechanisms with the macroscale processes.
TIME Friday October 18, 2024 at 2:00 PM - 3:00 PM
LOCATION A230, Technological Institute map it
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CONTACT Andrew Liguori andrew.liguori@northwestern.edu
CALENDAR McCormick - Civil and Environmental Engineering (CEE)