Articles | Volume 4, issue 2
Research article
06 Dec 2022
Research article |  | 06 Dec 2022

In situ U–Pb dating of 4 billion-year-old carbonates in the martian meteorite Allan Hills 84001

Romain Tartèse and Ian C. Lyon

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Cited articles

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Beard, B. L., Ludois, J. M., Lapen, T. J., and Johnson, C. M.: Pre-4.0 billion year weathering on Mars constrained by RbSr geochronology on meteorite ALH84001, Earth Planet. Sc. Lett., 361, 173–182, 2013. 
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Short summary
Absolute chronological constraints are crucial in Earth and planetary sciences. In recent years, U–Pb dating of carbonates has provided information on the timing of, for example, diagenesis, faulting, or hydrothermalism. These studies have targeted relatively young terrestrial carbonates up to 300 million years old. By dating 3.9 billion-year-old martian carbonates in situ using the U–Pb chronometer, we show that this system is robust in ancient samples that have had a relatively simple history.