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I am pleased to announce a colloquium by:</div>
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Dr. Erica Lucas</div>
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University of Santa Cruz</div>
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On Monday February 2nd at 10:45 AM</div>
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Location EOAS 6042</div>
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Title:</div>
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Ice sheet stability across space and time from geophysical investigations of Antarctica</div>
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Abstract: </div>
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With the remote setting and near complete ice coverage, characterizing the geophysical setting of Antarctica remains a unique challenge. Over the last two decades, a surge in seismic and GPS station deployments have helped to advance our understanding of solid
Earth structure in Antarctica. In this talk, I will discuss implications of recent regional-scale investigations of mantle structure for better understanding tectonics and solid Earth – ice sheet interactions in West Antarctica. Strong upper mantle heterogeneity
in West Antarctica, consistent with a complex tectonic setting, is found to significantly impact predictions of glacial isostatic adjustment-induced bedrock deformation and local sea level change for modern (past ~100 years) and projected (next ~300 years)
ice sheet changes. I will also present results revealing seismic evidence for widespread active magmatism in eastern Marie Byrd Land, a region of West Antarctica that coincides with multiple major glaciers undergoing rapid ice mass loss.</div>
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