ArticleScientific reports2025
Navajo Sandstone concretions record extended magnetic chronology.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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.
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.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors.
Funding
Abstract
This study investigates iron oxide concretions from the Jurassic Navajo Sandstone in Utah as potential recorders of long-term magnetic field variations. Using a combination of alternating field and thermal demagnetization, physical abrasion, chemical analysis, and magnetic modeling, we reveal multiple magnetic components with contrasting directions within individual concretions. Finite Element Magnetic Modelling demonstrates the sensitivity of magnetic signatures to small changes in layer thickness. X-Ray Fluorescence spectrometry confirms high iron concentrations in concretion crusts. Our results support a two-stage formation model involving initial iron hydroxide precipitation followed by progressive transformation to hematite. This extended formation process suggests these concretions may record paleomagnetic field changes, though their reliability as magnetic recorders need to be verified in more details. The identification of both goethite and hematite phases, coupled with their distinct magnetic behaviors, has implications for understanding similar concretionary structures observed on Mars. However, environmental differences between terrestrial and Martian settings require careful consideration when making such comparisons.
Identifiers
What OpenQuestion holds
Registered trials
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.