Published October 19, 2023 | Version v1
Dataset Open

Hornblende 40Ar-39Ar data from debris from the basal ice of the Byrd ice core, central West Antarctica

  • 1. ROR icon Lamont-Doherty Earth Observatory
  • 2. ROR icon Imperial College London

Description

This dataset comprises of hornblende 40Ar/39Ar ages. Hornblende grains were picked from debris melted from three intervals of basal ice from the Byrd ice core. We include data for all 129 40Ar/39Ar dated hornblende grains, but note that only ages when an 5.0E-18 Mol 39Ar threshold was exceeded are considered reliable (n = 33) and that data from grains with less than 1.5E-17 Mol 39Ar should be interpreted with caution. The ice core the debris was extracted from was drilled at 80° 0.1'S, 119° 31.0'W at Byrd Station, West Antarctica, in January 1968.

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ByrdIC_Ar-Ar_data_for_repository.csv

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Additional details

Related works

Is published in
Journal article: 10.1029/2023GL106958 (DOI)

Funding

GEO ICE - Benchmark Geological Records for the Response of the West Antarctic Ice Sheet to Near Future Temperature NE/W000172/1
UK Research and Innovation
Ocean-ice Interaction in the Ross Sea during Past Warm Periods NE/R018219/1
UK Research and Innovation