Radiometric 81Kr dating identifies 120,000-year-old ice at Taylor Glacier, Antarctica

Past variations in Earth’s climate and atmospheric composition are recorded in accumulating polar meteoric ice and the air trapped within it. Ice outcrops provide accessible archives of old ice but are difficult to date reliably. Here we demonstrate 81Kr radiometric dating of ice, allowing accurate...

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Bibliographic Details
Published in:Proceedings of the National Academy of Sciences
Main Authors: Buizert, Christo, Baggenstos, Daniel, Jiang, Wei, Purtschert, Roland, Petrenko, Vasilii V., Lu, Zheng-Tian, Müller, Peter, Kuhl, Tanner, Lee, James, Severinghaus, Jeffrey P., Brook, Edward J.
Format: Text
Language:English
Published: National Academy of Sciences 2014
Subjects:
Physical Sciences
Taylor Glacier
Antarc*
Antarctica
ice core
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4024921
http://www.ncbi.nlm.nih.gov/pubmed/24753606
https://doi.org/10.1073/pnas.1320329111

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