EAGER: Refining glacial lake history in Taylor Valley, East Antarctica with alternative geochronometers

Geomorphologic evidence suggests that past lake levels in Taylor Valley were once much higher than they are today. Past studies have largely targeted organic radiocarbon as a means for dating these past lake levels.

However, an unconstrained radiocarbon reservoir effect in the region reduces the credibility of those data and the lake level chronologies they produce. Alternative geochronometers are therefore necessary to validify or augment the lake level records produced using organic radiocarbon. This research tests the overarching hypothesis that a multi-proxy geochronologic approach can constrain the timing of major changes in Taylor Valley lake levels.