ArticleScientific reports2025
A geophysical investigation of the fairy circles in Nebraska for geologic hydrogen exploration.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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
1 citing paper in PubMed.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Fairy circles are subcircular surface depression features that are widely distributed all over the world and they are commonly considered as a potential indicator to the presence of subsurface geologic hydrogen. Understanding the relationship between fairy circles and geological structures could assist in understanding potential hydrogen migration pathways and accumulations. We have carried out an integrated geophysical investigation over a group of such circles in the central U.S. We integrate digital elevation model (DEM), airborne gamma-ray spectrometry (AGRS) data, and ground electrical resistivity data to understand the connection between the surficial expressions and the underlying geology of the fairy circles. The study has shown that correlation between the locations of the fairy circles with either radiometric data or subsurface mafic or ultramafic rocks cannot be established. Meanwhile, the imaged geo-electrical structure within 500 m depth from the surface shows that the rim of the studied circle is directly above a ring of more resistive gap in a conductive layer. The low water saturation or lower salinity imaged by the high resistivity in this ring would allow the subsurface H2 to seep through more easily and, therefore, can explain the elevated H
Indexed as
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.