Start Date
11-4-2022 3:45 PM
End Date
11-4-2022 5:00 PM
Access Type
Open Access
Abstract
The geological record of deglaciated landscapes extends spatial and temporal perspectives on ice-sheet processes and behavior that transcend the timeframe of modern instrumental observations. Based on geophysical, remote sensing, and sedimentological data from Antarctica and North America, I will discuss my group’s work on reconstructions of past ice-sheet changes and understanding processes and conditions that contribute to those changes, including subglacial meltwater drainage, grounding line retreat, and influence of topography on ice flow. The work that I will present highlights the importance of understanding past ice-sheet changes in assessing the stability of contemporary glacial systems – and what the multi-faceted term of stability means in this context.
Biography
Dr. Simkins uses sediments and landforms from glacial landscapes to address elusive questions about glacier retreat, ice-bed interactions, subglacial hydrology, and processes that contribute to glacier change. She has a B.S. in Geology from Oklahoma State University, a Ph.D. in Geological Sciences from the University of California Santa Barbara, and completed postdoctoral research at Rice University prior to arriving at the University of Virginia as an Assistant Professor in 2018.
Additional Links
ORCID
Paleo-perspectives on marine and terrestrial ice sheets
The geological record of deglaciated landscapes extends spatial and temporal perspectives on ice-sheet processes and behavior that transcend the timeframe of modern instrumental observations. Based on geophysical, remote sensing, and sedimentological data from Antarctica and North America, I will discuss my group’s work on reconstructions of past ice-sheet changes and understanding processes and conditions that contribute to those changes, including subglacial meltwater drainage, grounding line retreat, and influence of topography on ice flow. The work that I will present highlights the importance of understanding past ice-sheet changes in assessing the stability of contemporary glacial systems – and what the multi-faceted term of stability means in this context.