Department of Earth and Planetary Sciences
St. Louis, Missouri
Supporting Stations: McMurdo Station, South Pole Station
Research Locations: East Antarctica
This is a continuation of the passive seismic study of the Gamburtsev Mountains which collects data contemporaneously with other Antarctic programs seismic arrays. The research addresses the following questions: (1) How have the Gamburtsev Mountains formed? (2) What is the role of topography and heat flow in the formation of continental ice sheets in East Antarctica? (3) What is the geologic and tectonic history of the East Antarctic craton? (4) How do tectonics and regional heat flow control the formation, distribution and stability of subgalcial lakes in East Antarctica?
Up to this point the data return has been excellent. This analysis is providing the first detailed seismic constraints on crustal and upper mantle structure beneath and surrounding the Gamburtsev Mountains, on the processes which support the high elevation of this region, on the regional distribution of heat flow, and on the tectonic framework of the interior of the East Antarctic shield.
Field Season Overview:
Participants will deploy to McMurdo and East Antarctica to visit each of the eight broadband seismic stations in the POLENET EAST / AGAP seismic array. Last year the stations were fully serviced and batteries were replaced, so this field season the field team will collect data acquired over the past year. They will acclimatize at South Pole and use fixed-wing air support to make day trips into the field.
Deploying Team Members:
Patrick Shore (Team Leader)