Geochronology
Geochronology
GChron
Articles | Volume 8, issue 2
Articles | Volume 8, issue 2
https://doi.org/10.5194/gchron-8-255-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gchron-8-255-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 8, issue 2
Research article
 | 
05 May 2026
Research article |  | 05 May 2026

Paired 14C–10Be exposure ages from Mount Murphy, West Antarctica: Implications for accurate and precise deglacial chronologies

Jonathan R. Adams, Dylan H. Rood, Klaus Wilcken, Stephen J. Roberts, and Joanne S. Johnson

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Short summary
Ice sheet mass loss is adding to sea-level rise, and is expected to increase, but by how much and how fast remains uncertain. Isotopes produced in rock at the Earth’s surface provide records of past ice sheet thinning which help predict future change but are more effective if they are precise enough to determine past changes to the nearest thousand years. Carbon-14 is a unique isotope that provides an accurate record of past change since the last ice age, however, its precision can be improved.
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