Microstructure, micro-inclusions, and mineralogy along the EGRIP (East Greenland Ice Core Project) ice core – Part 2: Implications for palaeo-mineralogy

Stoll, Nicolas; Hörhold, Maria; Erhardt, Tobias; Eichler, Jan; Jensen, Camilla; Weikusat, Ilka

doi:https://doi.org/10.5194/tc-16-667-2022

Articles | Volume 16, issue 2

https://doi.org/10.5194/tc-16-667-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-16-667-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 16, issue 2

Research article

|

23 Feb 2022

Research article |

| 23 Feb 2022

Microstructure, micro-inclusions, and mineralogy along the EGRIP (East Greenland Ice Core Project) ice core – Part 2: Implications for palaeo-mineralogy

Nicolas Stoll, Maria Hörhold, Tobias Erhardt, Jan Eichler, Camilla Jensen, and Ilka Weikusat

Supplement

https://doi.org/10.5194/tc-16-667-2022-supplement

Data sets

Locations of micro-inclusions identified with Raman spectroscopy in eleven samples (138-1340 m) from the EastGRIP ice core Nicolas Stoll, Ilka Weikusat, and Jan Eichler https://doi.org/10.1594/PANGAEA.933053

Short summary

We mapped and analysed solid inclusion in the upper 1340 m of the EGRIP ice core with Raman spectroscopy and microstructure mapping, based on bulk dust content derived via continuous flow analysis. We observe a large variety in mineralogy throughout the core and samples. The main minerals are sulfates, especially gypsum, and terrestrial dust minerals, such as quartz, mica, and feldspar. A change in mineralogy occurs around 900 m depth indicating a climate-related imprint.