Evidence map›Paper›PMID 41916985›Full record

ArticleNature communications2026

Strong nickel enrichment co-located with redox-organic interactions in Neretva Vallis, Mars.

H T Manelski, R C Wiens, A Broz, J A Hurowitz, M Tice, S Clegg, E Dehouck, N Randazzo, S A Connell, O Forni and 9 more

Erratum issuedAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. 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

5 · Who and what money

Authors and funding

19 authors.

H T ManelskiPurdue University, West Lafayette, IN, USA. hmanelsk@purdue.edu.ORCID http://orcid.org/0000-0002-8468-6446
R C WiensPurdue University, West Lafayette, IN, USA.ORCID http://orcid.org/0000-0002-3409-7344
A BrozPurdue University, West Lafayette, IN, USA.ORCID http://orcid.org/0000-0003-1843-6702
J A HurowitzStony Brook University, Stony Brook, NY, USA.
M TiceTexas A&M University, College Station, TX, USA.ORCID http://orcid.org/0000-0003-2560-1702
S CleggLANL, Los Alamos, NM, USA.
E DehouckUniversité Claude Bernard Lyon 1, ENS de Lyon, CNRS, Villeurbanne cedex, France.ORCID http://orcid.org/0000-0002-1368-4494
N RandazzoUniversity of Alberta, Edmonton, AB, Canada.
S A ConnellPurdue University, West Lafayette, IN, USA.
O ForniIRAP, Toulouse, France.
S J VanBommelWashington University, St. Louis, MO, USA.
S SchröderDLR Institute of Space Research, Berlin, Germany.ORCID http://orcid.org/0000-0003-1870-3663
L MandonInstitut de Planétologie et d'Astrophysique de Grenoble, Grenoble, France.
T S J GabrielUSGS, Flagstaff, AZ, USA.ORCID http://orcid.org/0000-0002-9767-4153
C C BedfordPurdue University, West Lafayette, IN, USA.ORCID http://orcid.org/0000-0002-0783-1064
R K MartinezLANL, Los Alamos, NM, USA.
E A CloutisUniversity of Winnipeg, Winnipeg, MB, Canada.ORCID http://orcid.org/0000-0001-7301-0929
A CousinIRAP, Toulouse, France.ORCID http://orcid.org/0000-0001-7823-7794
M L CableNASA Jet Propulsion Laboratory, Pasadena, CA, USA.ORCID http://orcid.org/0000-0002-3680-302X

Funding

National Aeronautics and Space Administration (NASA) NNH13ZDA018O
6 · The paper itself

Abstract

In 2024, NASA's Perseverance rover explored Neretva Vallis, an ancient river channel that once transported water into Jezero crater. There, the rover encountered Mg-poor mudstones with diverse alteration features. In 32 rock targets in Neretva Vallis, nickel (Ni) was detected by the SuperCam instrument with concentrations in individual rocks as high as ~1.1 weight percent - the highest abundance ever seen in bedrock on Mars. In this work, we describe and contextualize these Ni enrichments using outcrop-scale imagery and petrographic-scale elemental maps provided by the PIXL instrument. We find Ni enrichment in Fe-sulfides and their weathering products. The geochemistry and morphology of Neretva Vallis Fe-sulfides are similar to pyrite present in terrestrial Archean and Paleoproterozoic sedimentary rocks. As an essential element for terrestrial microbial life, the proximity of Ni enrichments to reduced sulfur and organic matter adds to the interest in bringing back to Earth the rock sample collected by Perseverance at this location, which could provide key insights into complex redox chemistry on early Mars.

Identifiers

PMID41916985
PMCPMC13039681

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.