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Triple-dating (Pb-FT-He) of Antarctic Detritus and the Origin of the Gamburtsev Mountains Data DOI: https://doi.org/10.15784/600089 Cite as Thomson, S., & Thomson, S. (2009) "Triple-dating (Pb-FT-He) of Antarctic Detritus and the Origin of the Gamburtsev Mountains" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/600089. AMD - DIF Record(s) NSF-ANT08-16934_1 Abstract This Small Grant for Exploratory Research investigates the origin and evolution of the Gamburtsev subglacial mountains (GSM). These mountains are considered the nucleation point for Antarctica's largest ice sheets; however, being of indeterminate age, they may postdate ice sheet formation. As well, their formation could reflect tectonic events during the breakup of Gondwana. The project studies GSM-derived detrital zircon and apatite crystals from Prydz Bay obtained by the Ocean Drilling Program. Analytical work includes triple-dating thermochronometry by U/Pb, fission track, and (U/Th)/He methods. The combined technique offers insight into both high and low temperature processes, and is potentially sensitive to both the orogenic events and the subsequent cooling and exhumation due to erosion. In terms of broader impacts, this project supports research for a postdoctoral fellow. Creator(s): Thompson, Stuart Date Created: 2009-01-01 Repository: USAP-DC (current) - LDEO-LEGACY (original) License: Creative Commons Attribution-NonCommercial v4.0 Generic [CC BY-NC 4.0] Spatial Extent(s) West: 65, East: 144, South: -69, North: -66 Temporal Extent(s) Start: 2008-02-15 - End: 2009-01-31 Award(s) NSF 0816934 Version: 1 Related Project(s) Collaborative Research: SGER: Triple-dating (Pb-FT-He) of Antarctic Detritus and the Origin of the Gamburtsev Mountains Keywords Antarctica Fission Track Thermochronology Gamburtsev Mountains Geochronology Solid Earth