# Nanodiamonds were reported at 10 to 3,700 ppb in the boundary layer and not above or below.

> Nanodiamonds were reported at 10 to 3,700 ppb in the boundary layer and not above or below.

Source: https://mysteriesdept.com/mysteries/younger-dryas-impact/evidence/EVD0D51XFWR4AH1/nanodiamonds-were-reported-at-10-to-3-700-ppb-in-the  
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

# Nanodiamonds were reported at 10 to 3,700 ppb in the boundary layer and not above or below.

Nanodiamonds were reported at 10 to 3,700 ppb in the boundary layer and not above or below.

Suggestive0

## What it bears on 1 answer

[The markers form only at the temperatures and pressures of impacts and airbursts, and they peak at the…](https://mysteriesdept.com/mysteries/younger-dryas-impact/answers/ANS0D51XFD40S6P/the-markers-form-only-at-the-temperatures-and-pressures-of)

Disputed

FOR

## Cite it

```
Mysteries Department. (2026). Nanodiamonds were reported at 10 to 3,700 ppb in the boundary layer and not above or below. [Evidence EVD0D51XFWR4AH1]. https://mysteriesdept.com/r/EVD0D51XFWR4AH1
```

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**EVD** 0D51XFWR4AH1

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Evidence

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Suggestive

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