AGU Session PP030: Tectonic, glacial, and ocean influences on bed geology and paleoelevation through time, Ross Embayment, West Antarctica
https://agu.confex.com/agu/fm16/preliminaryview.cgi/Session12517
Advances in understanding of the characteristics of the crust, lithospheric provinces, and origins of lithospheric boundaries of the Ross sector of West Antarctica are being achieved from new airborne and marine geophysical, seismic, and satellite data collection, field and laboratory geological research, and the use of new integrated digital datasets for Antarctica (e.g. AntGG, ADMAP-2, Bedmap2). The improved characterization of the subglacial geology and paleotopography over time is needed to refine models of oceanographic circulation, Paleogene to Present Antarctic ice sheet variability, and past and future global climate.
Session PP030 invites contributions that will provide new insights into the makeup and characteristics of the crust, lithospheric provinces, and enduring lithospheric boundaries of West Antarctica and north Victoria Land. Contributions based on recent airborne, marine, and Ross Ice Shelf surveys are welcome, as are works that take advantage of new continent-scale integrated digital datasets (e.g. Gravity and Geoid in Antarctica: AntGG, Antarctic Digital Magnetic Anomaly Project: ADMAP-2, and Ice thickness and subglacial topographic model of Antarctica: Bedmap2) to better characterize the lithosphere, identify active tectonic and surface processes, and illuminate Cretaceous through Tertiary paleotopography. Improved characterization of the lithosphere, recognition of the tectonic and surface processes that have been in effect, and a scheme for development of paleotopography over time are needed for the refinement of paleoclimate models and ice sheet history.
Invited presentations from:
Helen Fricker, Scripps Institution of Oceanography (SIO), University of California, San Diego
Doug Wilson, Earth Research Institute, University of California, Santa Barbara
Session organizers :
Christine Siddoway, USARP and Dept Geology - Colorado CollegChris Sorlien, Earth Research Institute, University of California - Santa Barbara
Kirsty Tinto, NASA Icebridge, USARP, and Lamont Doherty Earth Observatory - Columbia University
Atsuhiro Muto, USARP and Polar Geophysics - Temple University
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