# Quartz grains reported as shock-fractured (2025, retracted)

> The most recent physical claim, retracted five months after publication.

Source: https://mysteriesdept.com/mysteries/younger-dryas-impact/artifacts/ART0D51XZ8Y2R89/quartz-grains-reported-as-shock-fractured-2025-retracted  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

---

[Mysteries](https://mysteriesdept.com/mysteries)[Younger Dryas impact hypothesis](https://mysteriesdept.com/mysteries/younger-dryas-impact)[Artifacts](https://mysteriesdept.com/mysteries/younger-dryas-impact#artifacts)Quartz grains reported as shock-fractured (2025, retracted)

**ART** 0D51XZ8Y2R89·Artifact · sample

# Quartz grains reported as shock-fractured (2025, retracted)

SampleCC-BY-4.0Published 10 September 2025; retracted 11 February 2026

[Cite]

**Not kept here.** This copy isn't ours to show. [See it where it's published](https://doi.org/10.1371/journal.pone.0319840).

The most recent physical claim, retracted five months after publication.

James Kennett and colleagues, 2025. CC-BY-4.0

## Copies 1

**Document** James Kennett and colleagues · doi.org · 2025-09-10 · CC-BY-4.0Primary source: [Shocked quartz at the Younger Dryas onset (12.8 ka) supports cosmic airbursts/impacts contributing to North American megafaunal extinctions and collapse of the Clovis technocomplex (retracted)](https://mysteriesdept.com/sources/SRC0D51WW3Y6T4M/shocked-quartz-at-the-younger-dryas-onset-12-8-ka-supports)2 steps from the original

[Where it's published](https://doi.org/10.1371/journal.pone.0319840)

## Where it was made

[Murray Springs, San Pedro Valley, Arizona](https://mysteriesdept.com/records/PLC0D51WZS47HWA/murray-springs-san-pedro-valley-arizona) · Archaeological site

## Sources 2

- [Retraction: Shocked quartz at the Younger Dryas onset (12.8 ka) supports cosmic airbursts/impacts contributing to North American megafaunal extinctions and collapse of the Clovis technocomplex](https://mysteriesdept.com/sources/SRC0D51WWKJ0X43/retraction-shocked-quartz-at-the-younger-dryas-onset-12-8-ka)_SRC_
- [Shocked quartz at the Younger Dryas onset (12.8 ka) supports cosmic airbursts/impacts contributing to North American megafaunal extinctions and collapse of the Clovis technocomplex (retracted)](https://mysteriesdept.com/sources/SRC0D51WW3Y6T4M/shocked-quartz-at-the-younger-dryas-onset-12-8-ka-supports)_SRC_

## Cite it

```
Mysteries Department. (2026). Quartz grains reported as shock-fractured (2025, retracted) [Artifact ART0D51XZ8Y2R89]. https://mysteriesdept.com/r/ART0D51XZ8Y2R89
```

Key

**ART** 0D51XZ8Y2R89

Kind

Sample

Held by

the authors' laboratories

Dated

published 10 September 2025; retracted 11 February 2026

Licence

CC-BY-4.0

Place

[Murray Springs, San Pedro Valley, Arizona](https://mysteriesdept.com/records/PLC0D51WZS47HWA/murray-springs-san-pedro-valley-arizona)

Part of

[Younger Dryas impact hypothesis](https://mysteriesdept.com/mysteries/younger-dryas-impact)

The record

Every record is open data. Take this one as JSON, with its links and its history.

[JSON](https://mysteriesdept.com/api/v1/records/ART0D51XZ8Y2R89)