# An unexplained ammonium spike in Greenland ice at 1908 could be supplied by a comet.

> An unexplained ammonium spike in Greenland ice at 1908 could be supplied by a comet.

Source: https://mysteriesdept.com/mysteries/tunguska-event/evidence/EVD0D4ECDPE00V2/an-unexplained-ammonium-spike-in-greenland-ice-at-1908-could  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[1908 Tunguska event](https://mysteriesdept.com/mysteries/tunguska-event)Evidence

Evidence · 1908 Tunguska event

# An unexplained ammonium spike in Greenland ice at 1908 could be supplied by a comet.

An unexplained ammonium spike in Greenland ice at 1908 could be supplied by a comet.

Speculative0

## What it bears on 1 answer

[A fragment of a comet, largely ice, that vaporised completely.](https://mysteriesdept.com/mysteries/tunguska-event/answers/ANS0D4ECD6T0HRP/a-fragment-of-a-comet-largely-ice-that-vaporised-completely)

Most likely

FOR

## Cite it

```
Mysteries Department. (2026). An unexplained ammonium spike in Greenland ice at 1908 could be supplied by a comet. [Evidence EVD0D4ECDPE00V2]. https://mysteriesdept.com/r/EVD0D4ECDPE00V2
```

Key

**EVD** 0D4ECDPE00V2

Kind

Evidence

Tier

Speculative

Version

1

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