# The GISP2 spike has Pt/Ir ratios above all known terrestrial and chondritic materials and very high Pt/Al…

> The GISP2 spike has Pt/Ir ratios above all known terrestrial and chondritic materials and very high Pt/Al ratios.

Source: https://mysteriesdept.com/mysteries/younger-dryas-impact/evidence/EVD0D51XCZ0731Q/the-gisp2-spike-has-pt-ir-ratios-above-all-known-terrestrial  
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

# The GISP2 spike has Pt/Ir ratios above all known terrestrial and chondritic materials and very high Pt/Al…

The GISP2 spike has Pt/Ir ratios above all known terrestrial and chondritic materials and very high Pt/Al ratios.

Supported0

## What it bears on 1 answer

[A small or differentiated extraterrestrial body (such as an iridium-poor iron meteorite) left the Greenland…](https://mysteriesdept.com/mysteries/younger-dryas-impact/answers/ANS0D51XCQ621B8/a-small-or-differentiated-extraterrestrial-body-such-as-an)

Still possible

FOR

## Cite it

```
Mysteries Department. (2026). The GISP2 spike has Pt/Ir ratios above all known terrestrial and chondritic materials and very high Pt/Al… [Evidence EVD0D51XCZ0731Q]. https://mysteriesdept.com/r/EVD0D51XCZ0731Q
```

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**EVD** 0D51XCZ0731Q

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Evidence

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Supported

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1

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