Technical note: RA138 calcite U-Pb LA-ICP-MS primary reference material

Marcel Guillong; Elias Samankassou; Inigo Andreas Müller; Dawid  Szymanowski; Nathan Looser; Lorenzo Tavazzani; Óscar Merino-Tomé; Juan R. Bahamonde; Yannick Buret; Maria Ovtcharova

doi:10.5194/gchron-6-465-2024

Technical note: RA138 calcite U-Pb LA-ICP-MS primary reference material

Marcel Guillong, Elias Samankassou, Inigo Andreas Müller, Dawid Szymanowski, Nathan Looser, Lorenzo Tavazzani, Óscar Merino-Tomé, Juan R. Bahamonde, Yannick Buret, Maria Ovtcharova

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Abstract

A promising primary reference material for U-Pb laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) carbonate dating is analysed and reported here. The new reference material (RM) is a botryoidal cement (C1) from sample RA138. The sample was collected in outcrop strata of mid-Carboniferous age in northern Spain near La Robla, and multiple aliquots have been meticulously prepared for distribution. RA138 is characterized by variable U/Pb ratios (from g1/4 1 to g1/4 19) and a relatively high and homogeneous U content (g1/4 4 ppm). This material exhibits a low age uncertainty (0.2 %, 2 s; unanchored; ID-TIMS), allowing for the establishment of a well-defined isochron, particularly when anchored to the initial Pb ratio using LA-ICP-MS. Isotope dilution thermal ionization mass spectrometry (ID-TIMS) analyses of micro-drilled C1 cement (17 sub-samples) produce a lower-intercept age of 321.99 ± 0.65 Ma, an initial 207Pb/206Pb ratio of 0.8495 ± 0.0065, and a mean square weighted deviation (MSWD) of 5.1. The systematic uncertainty of 1.5 % observed in repeated LA-ICP-MS analyses challenges previous estimations of 2 %-2.5 % based on repeated analyses of ASH-15D and JT using WC-1 as primary reference material, underscoring the precision and reliability of RA138 for U-Pb dating applications.

Original language	English
Pages (from-to)	465-474
Number of pages	10
Journal	Geochronology
Volume	6
DOIs	https://doi.org/10.5194/gchron-6-465-2024
Publication status	Published - 8 Aug 2024
Externally published	Yes

Bibliographical note

Funding Information:
The authors acknowledge the critical reading and comments by Perach Nuriel and reviews by Sota Niki and Greg Ludvigson that helped improve the paper. Financial support. This work has received funding from the Swiss National Science Foundation (grant nos. 200021_160019, 206021_133771, 200021_169849, and 200021_182556), the Spanish Government (grant nos. CGL2013-44458-P, PGC2018-099698-B25 I00, and PRX19/00423), the Principality of Asturias (grant no. AYUD/2021/51293), and European Regional Development Fund (FEDER). Dawid Szymanowski and Lorenzo Tavazzani have been partly supported by an ETH Z\u00F6rich Career Seed Award.

Funding Information:
This work has received funding from the Swiss National Science Foundation (grant nos. 200021_160019, 206021_133771, 200021_169849, and 200021_182556), the Spanish Government (grant nos. CGL2013-44458-P, PGC2018-099698-B25 I00, and PRX19/00423), the Principality of Asturias (grant no. AYUD/2021/51293), and European Regional Development Fund (FEDER). Dawid Szymanowski and Lorenzo Tavazzani have been partly supported by an ETH Z\u00FCrich Career Seed Award.

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© 2024 Marcel Guillong et al.

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@article{cbdb7acece23488bbee85a0e0807802c,

title = "Technical note: RA138 calcite U-Pb LA-ICP-MS primary reference material",

abstract = "A promising primary reference material for U-Pb laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) carbonate dating is analysed and reported here. The new reference material (RM) is a botryoidal cement (C1) from sample RA138. The sample was collected in outcrop strata of mid-Carboniferous age in northern Spain near La Robla, and multiple aliquots have been meticulously prepared for distribution. RA138 is characterized by variable U/Pb ratios (from g1/4 1 to g1/4 19) and a relatively high and homogeneous U content (g1/4 4 ppm). This material exhibits a low age uncertainty (0.2 %, 2 s; unanchored; ID-TIMS), allowing for the establishment of a well-defined isochron, particularly when anchored to the initial Pb ratio using LA-ICP-MS. Isotope dilution thermal ionization mass spectrometry (ID-TIMS) analyses of micro-drilled C1 cement (17 sub-samples) produce a lower-intercept age of 321.99 ± 0.65 Ma, an initial 207Pb/206Pb ratio of 0.8495 ± 0.0065, and a mean square weighted deviation (MSWD) of 5.1. The systematic uncertainty of 1.5 % observed in repeated LA-ICP-MS analyses challenges previous estimations of 2 %-2.5 % based on repeated analyses of ASH-15D and JT using WC-1 as primary reference material, underscoring the precision and reliability of RA138 for U-Pb dating applications. ",

author = "Marcel Guillong and Elias Samankassou and M{\"u}ller, {Inigo Andreas} and Dawid Szymanowski and Nathan Looser and Lorenzo Tavazzani and {\'O}scar Merino-Tom{\'e} and Bahamonde, {Juan R.} and Yannick Buret and Maria Ovtcharova",

note = "Funding Information: The authors acknowledge the critical reading and comments by Perach Nuriel and reviews by Sota Niki and Greg Ludvigson that helped improve the paper. Financial support. This work has received funding from the Swiss National Science Foundation (grant nos. 200021_160019, 206021_133771, 200021_169849, and 200021_182556), the Spanish Government (grant nos. CGL2013-44458-P, PGC2018-099698-B25 I00, and PRX19/00423), the Principality of Asturias (grant no. AYUD/2021/51293), and European Regional Development Fund (FEDER). Dawid Szymanowski and Lorenzo Tavazzani have been partly supported by an ETH Z\u00F6rich Career Seed Award. Funding Information: This work has received funding from the Swiss National Science Foundation (grant nos. 200021_160019, 206021_133771, 200021_169849, and 200021_182556), the Spanish Government (grant nos. CGL2013-44458-P, PGC2018-099698-B25 I00, and PRX19/00423), the Principality of Asturias (grant no. AYUD/2021/51293), and European Regional Development Fund (FEDER). Dawid Szymanowski and Lorenzo Tavazzani have been partly supported by an ETH Z\u00FCrich Career Seed Award. Publisher Copyright: {\textcopyright} 2024 Marcel Guillong et al.",

year = "2024",

month = aug,

day = "8",

doi = "10.5194/gchron-6-465-2024",

language = "English",

volume = "6",

pages = "465--474",

journal = "Geochronology",

issn = "2628-3719",

publisher = "European Geosciences Union",

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TY - JOUR

T1 - Technical note: RA138 calcite U-Pb LA-ICP-MS primary reference material

AU - Guillong, Marcel

AU - Samankassou, Elias

AU - Müller, Inigo Andreas

AU - Szymanowski, Dawid

AU - Looser, Nathan

AU - Tavazzani, Lorenzo

AU - Merino-Tomé, Óscar

AU - Bahamonde, Juan R.

AU - Buret, Yannick

AU - Ovtcharova, Maria

N1 - Funding Information: The authors acknowledge the critical reading and comments by Perach Nuriel and reviews by Sota Niki and Greg Ludvigson that helped improve the paper. Financial support. This work has received funding from the Swiss National Science Foundation (grant nos. 200021_160019, 206021_133771, 200021_169849, and 200021_182556), the Spanish Government (grant nos. CGL2013-44458-P, PGC2018-099698-B25 I00, and PRX19/00423), the Principality of Asturias (grant no. AYUD/2021/51293), and European Regional Development Fund (FEDER). Dawid Szymanowski and Lorenzo Tavazzani have been partly supported by an ETH Z\u00F6rich Career Seed Award. Funding Information: This work has received funding from the Swiss National Science Foundation (grant nos. 200021_160019, 206021_133771, 200021_169849, and 200021_182556), the Spanish Government (grant nos. CGL2013-44458-P, PGC2018-099698-B25 I00, and PRX19/00423), the Principality of Asturias (grant no. AYUD/2021/51293), and European Regional Development Fund (FEDER). Dawid Szymanowski and Lorenzo Tavazzani have been partly supported by an ETH Z\u00FCrich Career Seed Award. Publisher Copyright: © 2024 Marcel Guillong et al.

PY - 2024/8/8

Y1 - 2024/8/8

N2 - A promising primary reference material for U-Pb laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) carbonate dating is analysed and reported here. The new reference material (RM) is a botryoidal cement (C1) from sample RA138. The sample was collected in outcrop strata of mid-Carboniferous age in northern Spain near La Robla, and multiple aliquots have been meticulously prepared for distribution. RA138 is characterized by variable U/Pb ratios (from g1/4 1 to g1/4 19) and a relatively high and homogeneous U content (g1/4 4 ppm). This material exhibits a low age uncertainty (0.2 %, 2 s; unanchored; ID-TIMS), allowing for the establishment of a well-defined isochron, particularly when anchored to the initial Pb ratio using LA-ICP-MS. Isotope dilution thermal ionization mass spectrometry (ID-TIMS) analyses of micro-drilled C1 cement (17 sub-samples) produce a lower-intercept age of 321.99 ± 0.65 Ma, an initial 207Pb/206Pb ratio of 0.8495 ± 0.0065, and a mean square weighted deviation (MSWD) of 5.1. The systematic uncertainty of 1.5 % observed in repeated LA-ICP-MS analyses challenges previous estimations of 2 %-2.5 % based on repeated analyses of ASH-15D and JT using WC-1 as primary reference material, underscoring the precision and reliability of RA138 for U-Pb dating applications.

AB - A promising primary reference material for U-Pb laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) carbonate dating is analysed and reported here. The new reference material (RM) is a botryoidal cement (C1) from sample RA138. The sample was collected in outcrop strata of mid-Carboniferous age in northern Spain near La Robla, and multiple aliquots have been meticulously prepared for distribution. RA138 is characterized by variable U/Pb ratios (from g1/4 1 to g1/4 19) and a relatively high and homogeneous U content (g1/4 4 ppm). This material exhibits a low age uncertainty (0.2 %, 2 s; unanchored; ID-TIMS), allowing for the establishment of a well-defined isochron, particularly when anchored to the initial Pb ratio using LA-ICP-MS. Isotope dilution thermal ionization mass spectrometry (ID-TIMS) analyses of micro-drilled C1 cement (17 sub-samples) produce a lower-intercept age of 321.99 ± 0.65 Ma, an initial 207Pb/206Pb ratio of 0.8495 ± 0.0065, and a mean square weighted deviation (MSWD) of 5.1. The systematic uncertainty of 1.5 % observed in repeated LA-ICP-MS analyses challenges previous estimations of 2 %-2.5 % based on repeated analyses of ASH-15D and JT using WC-1 as primary reference material, underscoring the precision and reliability of RA138 for U-Pb dating applications.

UR - http://www.scopus.com/inward/record.url?scp=85201111966&partnerID=8YFLogxK

U2 - 10.5194/gchron-6-465-2024

DO - 10.5194/gchron-6-465-2024

M3 - Article

SN - 2628-3719

VL - 6

SP - 465

EP - 474

JO - Geochronology

JF - Geochronology

ER -

Technical note: RA138 calcite U-Pb LA-ICP-MS primary reference material

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