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Geochronology Advances in geochronological science
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https://doi.org/10.5194/gchron-2020-21
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gchron-2020-21
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  24 Jul 2020

24 Jul 2020

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This preprint is currently under review for the journal GChron.

Technical note: on LA–ICP-MS U–Pb dating of unetched and etched apatites

Fanis Abdullin1, Luigi Solari2, Jesús Solé3, and Carlos Ortega-Obregón2 Fanis Abdullin et al.
  • 1CONACyT–Centro de Geociencias, Campus Juriquilla, UNAM, Querétaro, 76230,Mexico
  • 2Centro de Geociencias, Campus Juriquilla, UNAM, Querétaro, 76230, Mexico
  • 3LANGEM, Instituto de Geología, UNAM, Ciudad Universitaria, CDMX, 04510,Mexico

Abstract. The same unetched and chemically etched apatites from five rock samples were dated with U–Pb using laser ablation inductively coupled plasma mass spectrometry. The objective of this study is to demonstrate whether or not the etching, needed for the apatite fission track analysis, impact on the obtaining of apatite U–Pb ages. The results of this experiment indicate that the etching has no effect on the determination of apatite U–Pb ages by the laser ablation inductively coupled plasma mass spectrometry technique. Thus, laser ablation inductively coupled plasma mass spectrometry may be used safely for simultaneous apatite fission track in-situ and U–Pb double dating.

Fanis Abdullin et al.

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Fanis Abdullin et al.

Fanis Abdullin et al.

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Latest update: 10 Aug 2020
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Short summary
Unetched and etched apatites of five samples were dated by U–Pb with laser ablation inductively coupled plasma mass spectrometry. Our experiment demonstrates that the etching, needed for the apatite fission track dating, has no important effect on the obtaining of U–Pb ages; and therefore, the laser ablation-based technique can be used for apatite fission track and U–Pb double dating.
Unetched and etched apatites of five samples were dated by U–Pb with laser ablation...
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