Why the Soil Ring Still Matters

Introduction

The Delphos Ring incident became unusual not because of the sighting alone, but because witnesses claimed the object left a measurable trace on the ground. In the hours after the reported encounter on the Johnson family farm near Delphos, Kansas, investigators described a glowing circular patch of soil with odd physical properties: a pale crust, a persistent smell, temporary numbness on contact, and soil that reportedly resisted water absorption. Samples were preserved and later analysed by laboratory researchers, making the case one of the better-known examples of alleged physical evidence in UFO literature. [Center for UFO Studies]cufos.orgCenter for UFO StudiesJOURNAL OF UFO STUDIESprovide evidence of a genuine UFO-related event occurring at Delphos. Introduction. The Delph… [Salina Public Library]salinapubliclibrary.orgufos and kansasSalina Public LibraryUFOs and Kansas13 Feb 2023 — Headlines from the Salina Journal included “The 'Thing' Left a Ring, Photograph Shows”…

The laboratory findings did not establish that an extraterrestrial craft landed in Kansas. They did, however, produce a more complicated picture than a simple hoax or ordinary burn mark. Some tests suggested chemically altered soil and unusual organic residues, while other investigators argued that the evidence was weakened by delayed sampling, incomplete controls and the possibility of naturally occurring contaminants. The Delphos ring remains significant because it sits in the uncomfortable middle ground between unexplained anomaly and inconclusive evidence.

What witnesses said the ground looked and felt like

The physical trace reportedly appeared almost immediately after the luminous object departed. Ronald Johnson and members of his family described a ring-shaped mark on the ground roughly eight feet across, glowing faintly in the dark. Contemporary newspaper reporting and later UFO case reviews repeatedly referred to the ring as pale, chalky or white in colour. [Salina Public Library]salinapubliclibrary.orgufos and kansasSalina Public LibraryUFOs and Kansas13 Feb 2023 — Headlines from the Salina Journal included “The 'Thing' Left a Ring, Photograph Shows”… [2ufoevidence.org]ufoevidence.orgDelphos, Kansas Landing Ring2 Nov 1971 — The ring itself may not be directly related to the UFO sighting, and the presence of a fungus in…

Several details became central to later debate:

• The soil reportedly formed a crust-like surface rather than a scorched depression.
• Witnesses claimed the ring emitted a strong odour, sometimes described as similar to ammonia or burnt material.
• Touching the affected area allegedly produced temporary numbness in fingers.
• Nearby vegetation and trees were said to show traces of luminescent residue.
• Water poured onto the ring reportedly beaded up or ran off instead of soaking into the soil. [Salina Public Library]salinapubliclibrary.orgufos and kansasSalina Public LibraryUFOs and Kansas13 Feb 2023 — Headlines from the Salina Journal included “The 'Thing' Left a Ring, Photograph Shows”… [2ufoevidence.org]ufoevidence.orgDelphos, Kansas Landing Ring2 Nov 1971 — The ring itself may not be directly related to the UFO sighting, and the presence of a fungus in…

That final point — water resistance — became especially important because it sounded like a measurable physical property rather than a purely subjective observation. According to later summaries, the hydrophobic behaviour persisted for an extended period, even after rain. Investigators associated with UFO landing-trace research argued that this was difficult to dismiss as ordinary mud disturbance. [Center for UFO Studies]cufos.orgCenter for UFO StudiesJOURNAL OF UFO STUDIESprovide evidence of a genuine UFO-related event occurring at Delphos. Introduction. The Delph…

At the same time, none of these observations were documented under controlled scientific conditions at the moment they were first observed. The earliest descriptions came from witnesses, local law enforcement and civilian UFO investigators rather than trained field chemists. That limitation would shape every later interpretation of the case.

Why the hydrophobic soil drew scientific attention

Hydrophobic soil — soil that repels water — is a real and well-studied phenomenon. It can occur naturally after fires, fungal growth, petroleum contamination or the accumulation of organic compounds on soil particles. Modern soil science literature documents how certain organic coatings can prevent water penetration for long periods. [ResearchGate]researchgate.netResearch Gate Preliminary investigation of soil chemical and physicalResearchGatePreliminary investigation of soil chemical and physical…August 15, 2007 — In turfgrasses, it has been observed that an inc…Published: August 15, 2007 [US Forest Service]fs.usda.govUS Forest ServiceWater Repellent Soils: a state-of-the-artby LF DeBano · 1981 · Cited by 953 — Cover:A simple field test with a water dro…

This matters because Delphos investigators often presented the water-resistant ring as evidence of something exotic. Skeptics countered that hydrophobicity alone is not extraordinary. In burned or chemically contaminated soils, water can literally sit on the surface and evaporate before absorption occurs. [US Forest Service]fs.usda.govUS Forest ServiceWater Repellent Soils: a state-of-the-artby LF DeBano · 1981 · Cited by 953 — Cover:A simple field test with a water dro…

The Delphos ring nevertheless remained difficult to dismiss completely for two reasons.

First, witnesses insisted the effect appeared suddenly after the sighting rather than developing gradually over months or years, as many natural hydrophobic soil processes do. Second, the affected area reportedly had a sharply defined circular boundary instead of a diffuse patch. Those details encouraged UFO researchers such as Ted Phillips, who specialised in so-called “landing trace” cases, to treat Delphos as a potentially important physical-evidence incident. [Center for UFO Studies]cufos.orgCenter for UFO StudiesJOURNAL OF UFO STUDIESprovide evidence of a genuine UFO-related event occurring at Delphos. Introduction. The Delph…

The strongest argument in favour of the case was therefore not that hydrophobic soil is impossible, but that the combination of glow, geometry, smell and sudden appearance seemed difficult to explain as an ordinary agricultural condition.

Budinger’s laboratory findings and chemical analysis

The most frequently cited scientific work on the Delphos samples came from chemist Colm Kelleher and biophysicist Dr V. R. Budinger’s later reviews of the case, building on earlier sample preservation and testing associated with UFO investigators. Budinger’s analysis became influential because it attempted to identify the actual composition of the residue rather than simply describing it. [Amazon UK]amazon.co.ukAmazon UKThe Compelling Scientific Evidence for UFOs: The Analysis…Physical and chemical analysis of a glowing ring soil residue alleg…

According to those reports, the Delphos soil contained unusual organic compounds and deposits associated with insoluble residues. Budinger concluded that the ring soil had not been exposed to extreme heat, which weakened theories involving a straightforward burn or blast effect. One technical summary explicitly stated that the soil “was not exposed to a physical effect such as high temperature”. [documents.theblackvault.com]documents.theblackvault.comTSR UT0019 Aug 1999 — 6) The ring soil was not exposed to a physical effect such as high temperature. 7) The analysis neither proves nor…

Another recurring point involved the hydrophobic behaviour itself. Budinger reported that the water resistance disappeared after agitation in water, suggesting that the soil particles were coated with a soluble material rather than permanently transformed. A later technical review summarised her observation that once water and shaking removed the coating, the soil behaved normally again. [arXiv]arxiv.orgarXivThe New Science of Unidentified Aerospace-Undersea…Budinger also noted [271] that insoluble humates were not found in the soil sa…

Investigators also reported the presence of white particulate matter within the samples. Some UFO researchers argued that the material did not resemble ordinary agricultural residues from the farm environment. However, the published descriptions remained vague enough that later critics argued the findings were suggestive rather than conclusive. [Salina Public Library]salinapubliclibrary.orgufos and kansasSalina Public LibraryUFOs and Kansas13 Feb 2023 — Headlines from the Salina Journal included “The 'Thing' Left a Ring, Photograph Shows”…

Importantly, Budinger herself did not claim the laboratory results proved a UFO landing. One summary of her conclusions specifically stated that the analysis “neither proves nor rules out a UFO source”. [documents.theblackvault.com]documents.theblackvault.com11 Jul 2004 — The soil is composed of primarily quartz, kaolinite clay, a smaller amount of calcium carbonate, and probably minor amounts…

That caution is one reason the Delphos case continues to attract interest. Even researchers sympathetic to UFO explanations generally describe the chemistry as anomalous rather than definitive.

The fungal and environmental explanations

Sceptical investigators focused heavily on natural explanations for the ring. One of the most persistent theories involved fungal growth similar to so-called fairy rings — circular fungal patterns that can alter soil chemistry and water absorption. Modern soil science confirms that fungal activity can create strong hydrophobicity in localised ground patches. [ResearchGate]researchgate.netResearch Gate Preliminary investigation of soil chemical and physicalResearchGatePreliminary investigation of soil chemical and physical…August 15, 2007 — In turfgrasses, it has been observed that an inc…Published: August 15, 2007

This explanation gained traction because fungal processes can also produce pale residues and visible ring structures in fields. Critics argued that frightened witnesses may have attached unusual significance to a pre-existing ground feature after seeing a light in the sky.

However, the fungal explanation had weaknesses:

Other skeptics proposed contamination from petroleum compounds, fertilisers or farm chemicals. Soil chemistry research shows that hydrocarbons can produce water-repellent coatings and altered microbial activity. [U.S. Geological Survey]pubs.usgs.govGeological SurveyFate and transport of petroleum hydrocarbons in soil and…May 27, 2006 — by SD Williams · 2006 · Cited by 56 — Soil ga…Published: May 27, 2006 [PMC]pmc.ncbi.nlm.nih.govnih.govPetroleum-Degrading Fungal Isolates for the Treatment of Soil…by D Daâssi · 2023 · Cited by 23 — The main purpose of this study…

Yet these alternatives also faced evidential problems. No investigator established a documented contamination source on the Johnson property, and surviving reports do not show a comprehensive environmental baseline study of nearby fields. In practical terms, critics could demonstrate plausibility without definitively identifying the exact source of the ring.

The biggest weakness: delayed sampling and custody gaps

The most serious problem with the Delphos soil evidence is not necessarily the chemistry itself, but the chain of custody surrounding the samples.

Modern forensic soil analysis depends heavily on controlled collection procedures, matched controls, contamination prevention and detailed documentation. Standard scientific protocols emphasise exact sampling depth, location consistency, sealed handling and immediate preservation. [WILDCARD]wildcard-project.euWILDCARDSoil sampling protocolo Carefully insert the soil corer with the sampling ring in the soil, so that…Read more…

The Delphos investigation did not meet those standards.

Several issues repeatedly appear in later reviews:

• Some samples were collected after people had already walked through or touched the site.
• Different investigators handled the material over extended periods.
• Not all control samples were taken from equivalent depths or conditions.
• Some laboratory analyses occurred long after the original event.
• Published summaries often described results selectively rather than providing complete raw datasets. [documents.theblackvault.com]documents.theblackvault.comTSR UT0019 Aug 1999 — 6) The ring soil was not exposed to a physical effect such as high temperature. 7) The analysis neither proves nor… [documents.theblackvault.com]documents.theblackvault.com11 Jul 2004 — The soil is composed of primarily quartz, kaolinite clay, a smaller amount of calcium carbonate, and probably minor amounts…

One later analytical review of related Delphos material explicitly criticised the controls, noting that comparison soil should have been taken from the same depth as the tested sample. [documents.theblackvault.com]documents.theblackvault.com11 Jul 2004 — The soil is composed of primarily quartz, kaolinite clay, a smaller amount of calcium carbonate, and probably minor amounts…

These gaps do not prove the evidence was fraudulent. They do, however, sharply limit what can be claimed scientifically. A contaminated or poorly controlled sample can still contain genuinely unusual material, but it becomes extremely difficult to determine whether the anomaly came from the reported event, the surrounding environment or later handling.

Why the Delphos ring still matters

The Delphos Ring incident remains one of the more discussed UFO “trace cases” because it combined eyewitness testimony with physical material that could at least be tested. Most UFO reports leave nothing behind except memories. Delphos produced photographs, preserved soil and decades of argument over measurable effects. [Center for UFO Studies]cufos.orgCenter for UFO StudiesJOURNAL OF UFO STUDIESprovide evidence of a genuine UFO-related event occurring at Delphos. Introduction. The Delph… [Salina Public Library]salinapubliclibrary.orgufos and kansasSalina Public LibraryUFOs and Kansas13 Feb 2023 — Headlines from the Salina Journal included “The 'Thing' Left a Ring, Photograph Shows”…

The laboratory findings occupy an awkward middle position:

For believers, Delphos remains an example of a physical trace that resisted easy explanation. For skeptics, it illustrates how ambiguous environmental anomalies can become mythologised when attached to a dramatic sighting narrative. For historians of UFO research, the case is valuable because it shows how investigators in the 1970s tried to move beyond witness stories and into laboratory analysis, even when the scientific tools and procedures were imperfect.

The enduring fascination of the soil ring is therefore not that it solved the UFO question, but that it created a rare evidential grey zone: a case where material samples existed, produced unusual findings, and still failed to settle the argument.

Endnotes

1. Source: ufoevidence.org
   Link: https://www.ufoevidence.org/cases/case192.htm
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   Delphos, Kansas Landing Ring2 Nov 1971 — The ring itself may not be directly related to the UFO sighting, and the presence of a fungus in...

2. Source: documents.theblackvault.com
   Link: https://documents.theblackvault.com/documents/Budinger/UT001.pdf
   Source snippet

   TSR UT0019 Aug 1999 — 6) The ring soil was not exposed to a physical effect such as high temperature. 7) The analysis neither proves nor...

3. Source: researchgate.net
   Title: Research Gate Preliminary investigation of soil chemical and physical
   Link: https://www.researchgate.net/publication/229503759_Preliminary_investigation_of_soil_chemical_and_physical_properties_associated_with_type-I_fairy_ring_symptoms_in_turfgrass
   Source snippet

   ResearchGatePreliminary investigation of soil chemical and physical...August 15, 2007 — In turfgrasses, it has been observed that an inc...

   Published: August 15, 2007

4. Source: amazon.co.uk
   Link: https://www.amazon.co.uk/Compelling-Scientific-Evidence-UFOs-Analysis/dp/150271552X
   Source snippet

   Amazon UKThe Compelling Scientific Evidence for UFOs: The Analysis...Physical and chemical analysis of a glowing ring soil residue alleg...

5. Source: arxiv.org
   Link: https://arxiv.org/html/2502.06794v2
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   arXivThe New Science of Unidentified Aerospace-Undersea...Budinger also noted [271] that insoluble humates were not found in the soil sa...

6. Source: pubs.usgs.gov
   Link: https://pubs.usgs.gov/publication/sir20055104
   Source snippet

   Geological SurveyFate and transport of petroleum hydrocarbons in soil and...May 27, 2006 — by SD Williams · 2006 · Cited by 56 — Soil ga...

   Published: May 27, 2006

7. Source: pmc.ncbi.nlm.nih.gov
   Link: https://pmc.ncbi.nlm.nih.gov/articles/PMC10224032/
   Source snippet

   nih.govPetroleum-Degrading Fungal Isolates for the Treatment of Soil...by D Daâssi · 2023 · Cited by 23 — The main purpose of this study...

8. Source: wildcard-project.eu
   Title: WILDCARDSoil sampling protocol
   Link: https://wildcard-project.eu/wp-content/uploads/2024/03/WILDCARD_WP2_WP3_Soil_sampling_protocol_v4.2_FINAL_noQR.pdf
   Source snippet

   o Carefully insert the soil corer with the sampling ring in the soil, so that...Read more...

9. Source: documents.theblackvault.com
   Link: https://documents.theblackvault.com/documents/Budinger/UT035.pdf
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   11 Jul 2004 — The soil is composed of primarily quartz, kaolinite clay, a smaller amount of calcium carbonate, and probably minor amounts...

10. Source: researchgate.net
    Link: https://www.researchgate.net/publication/344295314_Fungal_bioremediation_of_soil_co-contaminated_with_petroleum_hydrocarbons_and_toxic_metals
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    (PDF) Fungal bioremediation of soil co-contaminated with...17 Sept 2020 — This article documents the roles of fungi in soil polluted wit...

11. Source: cufos.org
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    Center for UFO StudiesJOURNAL OF UFO STUDIESprovide evidence of a genuine UFO-related event occurring at Delphos. Introduction. The Delph...

12. Source: salinapubliclibrary.org
    Title: ufos and kansas
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    Salina Public LibraryUFOs and Kansas13 Feb 2023 — Headlines from the Salina Journal included “The 'Thing' Left a Ring, Photograph Shows”...

13. Source: fs.usda.gov
    Link: https://www.fs.usda.gov/psw/publications/documents/psw_gtr046/psw_gtr046.pdf
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    US Forest ServiceWater Repellent Soils: a state-of-the-artby LF DeBano · 1981 · Cited by 953 — Cover:A simple field test with a water dro...

14. Source: pubmed.ncbi.nlm.nih.gov
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    of Actinobacterial and Fungal Communities in...by K Björklöf · 2009 · Cited by 22 — In this work we studied the microbial communities in...

Additional References

1. Source: dri.edu
   Title: nsf grant awarded to research the chemistry of post fire soil water repellency
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   NSF Grant Awarded to Research the Chemistry of Post-fire...25 Sept 2025 — The research will investigate how the chemical composition of...

2. Source: facebook.com
   Link: https://www.facebook.com/groups/825663274173679/posts/7086477108092233/
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   ater, it repelled moisture completely, a phenomenon that...Read more...

3. Source: fsl.orst.edu
   Title: DeBano JH2002a fire
   Link: https://www.fsl.orst.edu/ltep/Biscuit/Biscuit_files/Refs/DeBano%20JH2002a%20fire.pdf
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   Water repellency in soils: a historical overviewby LF DeBano · 2000 · Cited by 613 — The addition of cores containing a loam soil to wate...

4. Source: usufocenter.com
   Title: delphos kansas UFO
   Link: https://www.usufocenter.com/ufologist/booth/delphos-kansas-UFO.html
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   UFOlogist: Delphos Kansas UFO Sighting of 1971Discover amazing details about the Delphos Kansas UFO Encounter along with other alien abdu...

5. Source: dokumen.pub
   Title: ring soil became water repellent.Read more
   Link: https://dokumen.pub/the-compelling-scientific-evidence-for-ufos-150271552x.html
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   The Compelling Scientific Evidence for UFOs 150271552XCuriously, it may also have relevance to the findings from the Delphos ring soil an...

6. Source: youtube.com
   Title: Science-Based Evidence May Indicate That UFO Landed In US Farm | Alien Contact
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   UFO Paralyzes Kansas Boy: Exclusive Interview with Ronnie Johnson...

7. Source: youtube.com
   Title: The UFO Encounter That Left Witnesses Paralyzed with Fear
   Link: https://www.youtube.com/watch?v=F0EEbxfIgwQ
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   UFO Investigators Face Trouble When Investigating A Mysterious Ring Formation | Alien Highway...

8. Source: mdpi.com
   Link: https://www.mdpi.com/2075-163X/10/8/724
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   MDPIpXRF Measurements on Soil Samples for the Exploration...by B Lemière · 2020 · Cited by 14 — Several methods based on wet chemistry a...

9. Source: altpropulsion.com
   Title: knuth apec 2023 final
   Link: https://www.altpropulsion.com/wp-content/uploads/2024/12/knuth-apec-2023-final.pdf
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   CE-2 Report,„. Journal of UFO Studies, 1, pp.41-65. Phillips, Ted. Landing Report from Delphos. Flying...Read more...

10. Source: youtube.com
    Title: UFO Paralyzes Kansas Boy: Exclusive Interview with Ronnie Johnson
    Link: https://www.youtube.com/watch?v=cqYrl-s-TrI
    Source snippet

    Family Has Permanent Physical Health Problems After UFO Encounter...