Articles | Volume 3, issue 1
https://doi.org/10.5194/gchron-3-103-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/gchron-3-103-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
16 Feb 2021
Research article |
| 16 Feb 2021
| 16 Feb 2021
Tools for uranium characterization in carbonate samples: case studies of natural U–Pb geochronology reference materials
E. Troy Rasbury
CORRESPONDING AUTHOR
Department of Geosciences, FIRST, Stony Brook University, 100 Nichols
Rd, Stony Brook, NY 11794, USA
Theodore M. Present
Division of Geological and Planetary Sciences, California Institute of
Technology, 307 North Mudd Laboratory, Pasadena, CA 91125, USA
Paul Northrup
Department of Geosciences, FIRST, Stony Brook University, 100 Nichols
Rd, Stony Brook, NY 11794, USA
Ryan V. Tappero
NSLS-II, Brookhaven National Laboratory, Upton NY 11973, USA
Antonio Lanzirotti
Center for Advanced Radiation Sources, Randall, Chicago, IL 60637, USA
Jennifer M. Cole
Department of Science, West Los Angeles College, Culver City, CA
90230, USA
Lamont-Doherty Earth Observatory of Columbia University, 61 Route 9W,
Palisades, NY 10964, USA
Kathleen M. Wooton
Department of Geosciences, FIRST, Stony Brook University, 100 Nichols
Rd, Stony Brook, NY 11794, USA
Kevin Hatton
Department of Geosciences, FIRST, Stony Brook University, 100 Nichols
Rd, Stony Brook, NY 11794, USA
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Short summary
We characterize three natural carbonate samples with elevated uranium/lead (U/Pb) ratios to demonstrate techniques improving the understanding of U incorporation in carbonates for U/Pb dating. With the rapidly accelerating application of laser ablation analyses, there is a great need for well-characterized reference materials that can serve multiple functions. Strontium (Sr) isotope analyses and U XANES demonstrate that these samples could be used as reference materials.
We characterize three natural carbonate samples with elevated uranium/lead (U/Pb) ratios to...
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