Articles | Volume 3, issue 1
https://doi.org/10.5194/gchron-3-35-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/gchron-3-35-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
The use of ASH-15 flowstone as a matrix-matched reference material for laser-ablation U − Pb geochronology of calcite
Geological Survey of Israel, 32 Yeshayahu Leibowitz St., Jerusalem, 9692100, Israel
Jörn-Frederik Wotzlaw
Institute of Geochemistry and Petrology, ETH Zurich, Clausiusstrasse 25, 8092 Zurich, Switzerland
Maria Ovtcharova
Department of Earth Sciences, University of Geneva, Geneva, Switzerland
Anton Vaks
Geological Survey of Israel, 32 Yeshayahu Leibowitz St., Jerusalem, 9692100, Israel
Ciprian Stremtan
Teledyne Photon Machines, 384 Gallatin Park Drive, Bozeman, MT 59715, USA
Martin Šala
Department of Analytical Chemistry, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia
Nick M. W. Roberts
Geochronology and Tracers Facility, British Geological Survey, Environmental Science Centre, Nottingham, NG12 5GG, UK
Andrew R. C. Kylander-Clark
Department of Earth Science, University of California, Santa Barbara, CA 93106, USA
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Latest update: 25 Dec 2024
Short summary
This contribution presents a new reference material, ASH-15 flowstone with an age of 2.965 ± 0.011 Ma (95 % CI), to be used for in situ U–Pb dating of carbonate material. The new age analyses include the use of the EARTHTIME isotopic tracers and a large number of sub-samples (n = 37) with small aliquots (1–7 mg) each that are more representative of laser-ablation spot analysis. The new results could improve the propagated uncertainties on the final age with a minimal value of 0.4 %.
This contribution presents a new reference material, ASH-15 flowstone with an age of...
Special issue