# The GISP2 ice core

> The record that dates the onset and carries the platinum anomaly; Green and colleagues (2025) argue the spike is volcanic.

Source: https://mysteriesdept.com/mysteries/younger-dryas-impact/artifacts/ART0D51XXAE2580/the-gisp2-ice-core  
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)The GISP2 ice core

**ART** 0D51XXAE2580·Artifact · sample

# The GISP2 ice core

PhotographPublic domainPlatinum spike at the Younger Dryas onset reported 2013

[Cite][Download](https://mysteriesdept.com/files/d/7e0a0ed5029f2c47ba5f8f611847c1a8c23be93177a764d024a47ac0ed4659b5)

[![The GISP2 ice core: photo](https://mysteriesdept.com/files/7e0a0ed5029f2c47ba5f8f611847c1a8c23be93177a764d024a47ac0ed4659b5.png)](https://mysteriesdept.com/files/7e0a0ed5029f2c47ba5f8f611847c1a8c23be93177a764d024a47ac0ed4659b5.png)

The GISP2 ice core: photo

[![The GISP2 ice core: photo](https://mysteriesdept.com/files/7e0a0ed5029f2c47ba5f8f611847c1a8c23be93177a764d024a47ac0ed4659b5.png)][![The GISP2 ice core: picture](https://mysteriesdept.com/media/folio/younger-dryas-impact-a-gisp2-core-c0)]

The record that dates the onset and carries the platinum anomaly; Green and colleagues (2025) argue the spike is volcanic.

NOAA, 2013. Public domain

## Copies 4

**Photo** NOAA · commons.wikimedia.org · Public domain (US government work)Primary source: [File:GISP2 1855m ice core layers.png](https://mysteriesdept.com/sources/SRC0D51WZHA4DYA/file-gisp2-1855m-ice-core-layers-png)1 step from the original

[Where it's published](https://commons.wikimedia.org/wiki/File:GISP2_1855m_ice_core_layers.png)[Download](https://mysteriesdept.com/files/d/7e0a0ed5029f2c47ba5f8f611847c1a8c23be93177a764d024a47ac0ed4659b5)

**Picture** NOAA · commons.wikimedia.org · Public domain (US government work)1 step from the original

[Where it's published](https://commons.wikimedia.org/wiki/File:GISP2_1855m_ice_core_layers.png)

**Dataset** Richard Alley (NOAA World Data Service for Paleoclimatology) · ncei.noaa.gov · public-domainPrimary source: [GISP2 Ice Core Temperature and Accumulation Data (IGBP PAGES/WDCA Data Contribution Series 2004-013)](https://mysteriesdept.com/sources/SRC0D51WXTM6YM5/gisp2-ice-core-temperature-and-accumulation-data-igbp-pages)2 steps from the original

[Where it's published](https://www.ncei.noaa.gov/pub/data/paleo/icecore/greenland/summit/gisp2/isotopes/gisp2_temp_accum_alley2000.txt)

**Document** Michail Petaev and colleagues · doi.org · 2013-07-22 · publisherPrimary source: [Large Pt anomaly in the Greenland ice core points to a cataclysm at the onset of Younger Dryas](https://mysteriesdept.com/sources/SRC0D51WQZ44MRA/large-pt-anomaly-in-the-greenland-ice-core-points-to-a)2 steps from the original

[Where it's published](https://doi.org/10.1073/pnas.1303924110)

## Where it was made

[GISP2 drill site, Summit, Greenland](https://mysteriesdept.com/records/PLC0D51WZHA4Z1Z/gisp2-drill-site-summit-greenland) · Ice-core drill site

## Sources 1

- [Large Pt anomaly in the Greenland ice core points to a cataclysm at the onset of Younger Dryas](https://mysteriesdept.com/sources/SRC0D51WQZ44MRA/large-pt-anomaly-in-the-greenland-ice-core-points-to-a)_SRC_

## Cite it

```
Mysteries Department. (2026). The GISP2 ice core [Artifact ART0D51XXAE2580]. https://mysteriesdept.com/r/ART0D51XXAE2580
```

Key

**ART** 0D51XXAE2580

Kind

Sample

Held by

not established in the sources read

Dated

platinum spike at the Younger Dryas onset reported 2013

Licence

Public domain (US government work)

Place

[GISP2 drill site, Summit, Greenland](https://mysteriesdept.com/records/PLC0D51WZHA4Z1Z/gisp2-drill-site-summit-greenland)

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/ART0D51XXAE2580)