Articles | Volume 3, issue 1
https://doi.org/10.5194/gchron-3-35-2021
https://doi.org/10.5194/gchron-3-35-2021
Research article
 | 
14 Jan 2021
Research article |  | 14 Jan 2021

The use of ASH-15 flowstone as a matrix-matched reference material for laser-ablation U − Pb geochronology of calcite

Perach Nuriel, Jörn-Frederik Wotzlaw, Maria Ovtcharova, Anton Vaks, Ciprian Stremtan, Martin Šala, Nick M. W. Roberts, and Andrew R. C. Kylander-Clark

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Cited articles

Anjiang, S., Anping, H., Cheng, T., Liang, F., Wenqing, P., Yuexing, F., and Zhao, J.: Laser ablation in situ U-Pb dating and its application to diagenesis-porosity evolution of carbonate reservoirs, Petroleum Exploration and Development, 46, 1127–1140, 2019. 
Black, L. P. and Gulson, B. L.: The age of the Mud Tank carbonatite, Strangways Range, Northern Territory, B.M.R.J. Austral. Geol. Geophys., 3, 227–232, 1978. 
Condon, D., Schoene, B., McLean, N., Bowring, S., and Parrish, R.: Metrology and traceability of U–Pb isotope dilution geochronology (EARTHTIME Tracer Calibration Part I), Geoch. Cosmoch. A., 164, 464–480, 2015. 
Coogan, L. A., Parrish, R. R., and Roberts, N. M.: Early hydrothermal carbon uptake by the upper oceanic crust: Insight from in situ U-Pb dating, Geology, 44, 147–150, 2016. 
Crouvi, O., Amit, R., Enzel, Y., and Gillespie, A. R.: Active sand seas and the formation of desert loess, Quat. Sci. Rev., 29, 2087–2098, 2010. 
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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 %.