Articles | Volume 1, issue 1
Geochronology, 1, 85–97, 2019
https://doi.org/10.5194/gchron-1-85-2019
Geochronology, 1, 85–97, 2019
https://doi.org/10.5194/gchron-1-85-2019

Research article 11 Dec 2019

Research article | 11 Dec 2019

Stepwise chemical abrasion–isotope dilution–thermal ionization mass spectrometry with trace element analysis of microfractured Hadean zircon

C. Brenhin Keller et al.

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (further review by editor) (18 Oct 2019) by Daniela Rubatto
AR by Brenhin Keller on behalf of the Authors (19 Oct 2019)  Author's response    Manuscript
ED: Publish subject to technical corrections (21 Oct 2019) by Daniela Rubatto
ED: Publish subject to technical corrections (25 Oct 2019) by Klaus Mezger(Editor)
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Short summary
The oldest known minerals on Earth are Hadean (> 4.0 Ga) zircons from the Jack Hills, Australia. We present the first application to such Hadean zircons of stepwise chemical abrasion–isotope dilution–thermal ionization mass spectrometry with trace element analysis (stepwise CA-ID-TIMS-TEA). We examine the evolution in the U–Pb age and trace element chemistry of zircon domains accessed by successive chemical abrasion steps in the context of the geologic history of the Jack Hills zircons.