Evidence map›Paper›PMID 40526721›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2025

Enigmatic carbon isotopic variability in the oceanic upper mantle.

Yves Moussallam, Estelle F Rose-Koga, Cyril Aubaud, Guillaume Georgeais, Pierre Cartigny, Kenneth T Koga, Jean-Luc Devidal, Peter J Michael, Kei Shimizu, Alberto E Saal

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Yves MoussallamLamont-Doherty Earth Observatory, Columbia University, New York, NY 10964.ORCID 0000-0002-4707-8943
Estelle F Rose-KogaInstitut des Sciences de la Terre d'Orléans, UMR 7327, Université Orléans-CNRS-Observatoire des Sciences de l'Univers en région Centre, 1A rue de la Férollerie, Orléans 45100, France.ORCID 0000-0001-9704-5819
Cyril AubaudUniversité Paris Cité, Institut de Physique du Globe de Paris, CNRS, Laboratoire de Géochimie des Isotopes Stables, Paris F-75005, France.
Guillaume GeorgeaisLamont-Doherty Earth Observatory, Columbia University, New York, NY 10964.
Pierre CartignyUniversité Paris Cité, Institut de Physique du Globe de Paris, CNRS, Laboratoire de Géochimie des Isotopes Stables, Paris F-75005, France.
Kenneth T KogaInstitut des Sciences de la Terre d'Orléans, UMR 7327, Université Orléans-CNRS-Observatoire des Sciences de l'Univers en région Centre, 1A rue de la Férollerie, Orléans 45100, France.
Jean-Luc DevidalLaboratoire Magmas et Volcans, CNRS, Institut de Recherche pour le Développement, Observatoire de Physique du Globe de Clermont-Ferrand, Université Clermont AuvergneClermont-Ferrand 63000, France.ORCID 0000-0002-2214-4182
Peter J MichaelSchool of Petroleum Engineering, The University of Tulsa, Tulsa, OK 74104.ORCID 0000-0003-2829-9502
Kei ShimizuWisconsin Secondary Ion Mass Spectrometer Laboratory, Department of Geosciences, University of Wisconsin-Madison, Madison, WI 53706.
Alberto E SaalDepartment of Earth, Environmental and Planetary Sciences, Brown University, Providence, RI 02912.

Funding

National Science Foundation (NSF) EAR-2407264
6 · The paper itself

Abstract

Unraveling the origin(s) of carbon on Earth has remained challenging, not only because of the multiple isotopic fractionation episodes that may have occurred during planet formation processes but also because the end point of these processes, the current isotopic value of Earth's deep carbon reservoirs remains poorly constrained. Here, we present carbon isotopic measurements on rare undegassed mid-ocean ridge basalts from the Pacific, Atlantic, and Arctic Oceans that have preserved the isotopic signature of their mantle source. We find that Earth's present-day convecting upper mantle has variable δ

Indexed as

carbon isotopesmid-ocean ridge basaltsundersaturated meltsupper mantlevolatile elements

Identifiers

PMID40526721
PMCPMC12207464

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.