Articles | Volume 2, issue 1
Geochronology, 2, 33–61, 2020
https://doi.org/10.5194/gchron-2-33-2020

Special issue: In situ carbonate U–Pb geochronology

Geochronology, 2, 33–61, 2020
https://doi.org/10.5194/gchron-2-33-2020

Research article 09 Apr 2020

Research article | 09 Apr 2020

Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) U–Pb carbonate geochronology: strategies, progress, and limitations

Nick M. W. Roberts et al.

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Revised manuscript accepted for GChron
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Cited articles

Albut, G., Kamber, B. S., Brüske, A., Beukes, N. J., Smith, A. J., and Schoenberg, R.: Modern weathering in outcrop samples versus ancient paleoredox information in drill core samples from a Mesoarchaean marine oxygen oasis in Pongola Supergroup, South Africa, Geochim. Cosmochim. Ac., 265, 330-353, 2019. 
Babinski, M., Van Schmus, W. R., and Chemale Jr., F.: Pb–Pb dating and Pb isotope geochemistry of Neoproterozoic carbonate rocks from the São Francisco basin, Brazil: implications for the mobility of Pb isotopes during tectonism and metamorphism, Chem. Geol., 160, 175–199, 1999. 
Babinski, M., Vieira, L. C., and Trindade, R. I.: Direct dating of the Sete Lagoas cap carbonate (Bambuí Group, Brazil) and implications for the Neoproterozoic glacial events, Terra Nova, 19, 401–406, 2007. 
Baker, A., Smart, P. L., Barnes, W. L., Edwards, R. L., and Farrant, A.: The Hekla 3 volcanic eruption recorded in a Scottish speleothem, Holocene, 5, 336–342, 1995. 
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Here we review current progress in LA-ICP-MS U–Pb carbonate geochronology and present strategies for acquisition and interpretation of carbonate U–Pb dates. We cover topics from imaging techniques and U and Pb incorporation into calcite to potential limitations of the method – disequilibrium and isotope mobility. We demonstrate the incorporation of imaging and compositional data to help refine and interpret U–Pb dates. We expect this paper to become a go-to reference paper for years to come.