ID-TIMS U–Pb geochronology at the 0.1‰ level using 1013 Ω resistors and simultaneous U and 18O/16O isotope ratio determination for accurate UO2 interference correction

Author:

Wotzlaw Jörn-Frederik1234ORCID,Buret Yannick1234,Large Simon J. E.1234,Szymanowski Dawid1234ORCID,von Quadt Albrecht1234

Affiliation:

1. Institute of Geochemistry and Petrology

2. Department of Earth Sciences

3. ETH Zurich

4. Switzerland

Abstract

We document recent advances in analytical protocols that employ 1013 Ω resistors in the Faraday cup amplifier feedback loop for high-precision U–Pb geochronology by isotope dilution thermal ionisation mass spectrometry (ID-TIMS).

Publisher

Royal Society of Chemistry (RSC)

Subject

Spectroscopy,Analytical Chemistry

Reference27 articles.

1. M. D. Schmitz , in The Geologic Time Scale, ed. F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg, Elsevier, Oxford, 2012, pp. 115–126

2. B. Schoene , in Treatise on Geochemistry, ed. H. D. H. K. Turekian, Elsevier, Oxford, 2nd edn, 2014, pp. 341–378

3. U–Th–Pb zircon geochronology by ID-TIMS, SIMS, and laser ablation ICP-MS: Recipes, interpretations, and opportunities

4. C. Bouman , A.Trinquier, N.Lloyd and J.Schwieters, Thermo Scientific, Technical Note 30282, 2015

5. Measurement of small ion beams by thermal ionisation mass spectrometry using new 1013Ohm resistors

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