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

Brenhin Keller, C.; Boehnke, Patrick; Schoene, Blair; Harrison, T. Mark

doi:https://doi.org/10.5194/gchron-1-85-2019

Articles | Volume 1, issue 1

https://doi.org/10.5194/gchron-1-85-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gchron-1-85-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 1, issue 1

Research article

| Highlight paper

|

11 Dec 2019

Research article | Highlight paper |

| 11 Dec 2019

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

C. Brenhin Keller, Patrick Boehnke, Blair Schoene, and T. Mark Harrison

Supplement

https://doi.org/10.5194/gchron-1-85-2019-supplement

Data sets

Stepwise chemical abrasion ID-TIMS-TEA of microfractured Hadean zircon C. B. Keller, P. Boehnke, B. Schoene, and T. M. Harrison https://doi.org/10.17605/OSF.IO/AVDQH

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.