Modeling δD-δ18O Steady-State of Well-Sealed Perennially Ice-Covered Lakes and Their Recharge Source: Examples From Lake Untersee and Lake Vostok, Antarctica

• Published in: Frontiers in Earth Science
• Main Authors: Benoit Faucher, Denis Lacelle, David A. Fisher, Klemens Weisleitner, Dale T. Andersen
• Format: Article in Journal/Newspaper
• Language: English
• Published: Frontiers Media S.A. 2020
• Subjects: isotope geochemistry; freezing; ice-covered lakes; Antarctica; FREZCHEM; Science; Q; Anuchin Glacier; Lake Vostok; McMurdo Dry Valleys; Untersee; Antarc*
• Online Access: https://doi.org/10.3389/feart.2020.00220; https://doaj.org/article/f2fb451c90a24b19a90fc4eff2f6aeda

Perennially ice-covered lakes that are tightly sealed from the atmosphere represent a unique group of polar lakes. In these lakes, the δD-δ18O evolution of the water column and steady-state conditions are controlled by rates of recharge and freezing at the bottom of the ice cover. We developed a rec...