Articles | Volume 17, issue 5
Clim. Past, 17, 2073–2089, 2021
https://doi.org/10.5194/cp-17-2073-2021
Clim. Past, 17, 2073–2089, 2021
https://doi.org/10.5194/cp-17-2073-2021
Research article
13 Oct 2021
Research article | 13 Oct 2021

Dating of the GV7 East Antarctic ice core by high-resolution chemical records and focus on the accumulation rate variability in the last millennium

Raffaello Nardin et al.

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Short summary
The first step to exploit all the potential information buried in ice cores is to produce a reliable age scale. Based on chemical and isotopic records from the 197 m Antarctic GV7(B) ice core, accurate dating was achieved and showed that the archive spans roughly the last 830 years. The relatively high accumulation rate allowed us to use the non-sea-salt sulfate seasonal pattern to count annual layers. The accumulation rate reconstruction exhibited a slight increase since the 18th century.