# Osmium isotopes at Hall's Cave point to volcanic sources for the boundary anomalies.

> Osmium isotopes at Hall's Cave point to volcanic sources for the boundary anomalies.

Source: https://mysteriesdept.com/mysteries/younger-dryas-impact/evidence/EVD0D51XHBM1HNJ/osmium-isotopes-at-halls-cave-point-to-volcanic-sources-for  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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

Evidence · Younger Dryas impact hypothesis

# Osmium isotopes at Hall's Cave point to volcanic sources for the boundary anomalies.

Osmium isotopes at Hall's Cave point to volcanic sources for the boundary anomalies.

Suggestive0

## What it bears on 1 answer

[The markers are background cosmic dust, volcanic or anthropogenic spherules, fire products or misidentified…](https://mysteriesdept.com/mysteries/younger-dryas-impact/answers/ANS0D51XGM601YH/the-markers-are-background-cosmic-dust-volcanic-or)

Most likely

FOR

## Cite it

```
Mysteries Department. (2026). Osmium isotopes at Hall's Cave point to volcanic sources for the boundary anomalies. [Evidence EVD0D51XHBM1HNJ]. https://mysteriesdept.com/r/EVD0D51XHBM1HNJ
```

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**EVD** 0D51XHBM1HNJ

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Evidence

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Suggestive

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