Geochronology
Geochronology
GChron
Articles | Volume 1, issue 1
Articles | Volume 1, issue 1
https://doi.org/10.5194/gchron-1-43-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gchron-1-43-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 1, issue 1
Research article
 | 
09 Oct 2019
Research article |  | 09 Oct 2019

Isolation of quartz for cosmogenic in situ 14C analysis

Keir A. Nichols and Brent M. Goehring

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Latest update: 26 Jul 2025
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Short summary
We describe observations of anomalously high measurements of C-14 made from geologic material. We undertake a systematic investigation to identify the source of contamination, which we hypothesise is sourced from a commonly used method that is used prior to sample analysis. We find that the method does introduce modern carbon to samples and elevates C-14 measurements. We describe a standard procedure that effectively removes contamination from the aforementioned method.
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