Title :

InterCarb: A Community Effort to Improve Interlaboratory Standardization of the Carbonate Clumped Isotope Thermometer Using Carbonate Standards

Author(s) :

Bernasconi, Stefano M. [Auteur correspondant]
Daëron, Mathieu [Auteur correspondant]
Paléocéanographie [PALEOCEAN]
Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
Bergmann, Kristin D. [Auteur]
Bonifacie, Magali [Auteur]
Meckler, Anna Nele [Auteur]
Affek, Hagit P. [Auteur]
Anderson, Noah T. [Auteur]
Bajnai, David [Auteur]
Barkan, Eugeni S. [Auteur]
Beverly, Emily J. [Auteur]
Blamart, Dominique [Auteur]
Paléocéanographie [PALEOCEAN]
Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
Burgener, Landon K. [Auteur]
Calmels, Damien [Auteur]
Chaduteau, Carine [Auteur]
Clog, Matthieu [Auteur]
Davidheiser-Kroll, Brett [Auteur]
Davies, Amelia J. [Auteur]
Dux, Florian W. [Auteur]
Eiler, John M. [Auteur]
Elliott, Ben M. [Auteur]
Fetrow, Anne C. [Auteur]
Fiebig, Jens [Auteur]
Goldberg, Samuel L. [Auteur]
Hermoso, Michaël [Auteur]
Université du Littoral Côte d'Opale [ULCO]
Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 [LOG]
Institut de Physique du Globe de Paris [IPGP (UMR_7154)]
Huntington, Katharine W. [Auteur]
Hyland, Ethan G. [Auteur]
Ingalls, Miquela [Auteur]
Jaggi, Madalina [Auteur]
John, Cédric Michaël [Auteur]
Jost, Adam B. [Auteur]
Katz, S. [Auteur]
Kelson, Julia R. [Auteur]
Kluge, Tobias M. [Auteur]
Kocken, Ilja J. [Auteur]
Laskar, Amzad Hussain [Auteur]
Leutert, Thomas J. [Auteur]
Liang, D. [Auteur]
Lucarelli, J. [Auteur]
Mackey, Tyler J. [Auteur]
Mangenot, Xavier [Auteur]
Meinicke, Niklas [Auteur]
Modestou, Sevasti [Auteur]
Müller, Inigo A. [Auteur]
Murray, Sean T. [Auteur]
Neary, A. [Auteur]
Packard, N. [Auteur]
Passey, Benjamin H. [Auteur]
Pelletier, Elise M. [Auteur]
Petersen, Sierra V. [Auteur]
Piasecki, Alison M. [Auteur]
Schauer, Andrew J. [Auteur]
Snell, Kathryn E. [Auteur]
Swart, Peter Koenraad [Auteur]
Tripati, Aradhna K. [Auteur]
Upadhyay, Deepshikha [Auteur]
Vennemann, Torsten [Auteur]
Winkelstern, Ian Z. [Auteur]
Yarian, Drake A. [Auteur]
Yoshida, Naohiro [Auteur]
Zhang, Naizhong [Auteur]
Ziegler, Martin [Auteur]

Journal title :

Geochemistry, Geophysics, Geosystems

Pages :

e2020GC009588

Publisher :

AGU and the Geochemical Society

Publication date :

2021-05

ISSN :

1525-2027

English keyword(s) :

carbonate
clumped isotopes
interlaboratory calibration
mass spectrometry
reference materials

HAL domain(s) :

Planète et Univers [physics]/Sciences de la Terre

English abstract : [en]

Increased use and improved methodology of carbonate clumped isotope thermometry has greatly enhanced our ability to interrogate a suite of Earth-system processes. However, interlaboratory discrepancies in quantifying ...
Show more >Increased use and improved methodology of carbonate clumped isotope thermometry has greatly enhanced our ability to interrogate a suite of Earth-system processes. However, interlaboratory discrepancies in quantifying carbonate clumped isotope (Δ47) measurements persist, and their specific sources remain unclear. To address interlaboratory differences, we first provide consensus values from the clumped isotope community for four carbonate standards relative to heated and equilibrated gases with 1,819 individual analyses from 10 laboratories. Then we analyzed the four carbonate standards along with three additional standards, spanning a broad range of δ47 and Δ47 values, for a total of 5,329 analyses on 25 individual mass spectrometers from 22 different laboratories. Treating three of the materials as known standards and the other four as unknowns, we find that the use of carbonate reference materials is a robust method for standardization that yields interlaboratory discrepancies entirely consistent with intralaboratory analytical uncertainties. Carbonate reference materials, along with measurement and data processing practices described herein, provide the carbonate clumped isotope community with a robust approach to achieve interlaboratory agreement as we continue to use and improve this powerful geochemical tool. We propose that carbonate clumped isotope data normalized to the carbonate reference materials described in this publication should be reported as Δ47 (I-CDES) values for Intercarb-Carbon Dioxide Equilibrium Scale.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

European Project :

Climate change across Cenozoic cooling steps reconstructed with clumped isotope thermometry
NEESR-II: Behavior and Design of Cast-in-Place Anchors under Simulated Seismic Loading

Collections :

• Laboratoire d'Océanologie et de Géosciences (LOG) - UMR 8187

Source :

Harvested from HAL