Collaborative Research: SGER: Triple-dating (Pb-FT-He) of Antarctic Detritus and the Origin of the Gamburtsev Mountains

这项探索性研究小额赠款旨在调查甘布尔采夫冰川下山脉（GSM）的起源和演化。这些山脉被认为是南极洲最大冰盖的核点；然而，由于它们的年龄不确定，它们可能晚于冰盖的形成。此外，它们的形成也可以反映冈瓦纳大陆分裂期间的构造事件。该项目研究了海洋钻探计划从Prydz湾获得的gsm衍生碎屑锆石和磷灰石晶体。分析工作包括用U/Pb法、裂变径迹法和(U/Th)/He法进行三重定年热时测定。该组合技术提供了对高温和低温过程的洞察，并且对造山事件以及随后由于侵蚀而导致的冷却和挖掘都具有潜在的敏感性。就更广泛的影响而言，该项目支持一名博士后和一名高级研究员的研究

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 and an