(Table 1) Micro-inclusion counts and ion concentrations in the five GRIP ice-core sections, supplement to: Sakurai, Toshimitsu; Iizuka, Yoshinori; Horikawa, Shinichiro; Johnsen, Sigfús Jóhann; Dahl-Jensen, Dorthe; Steffensen, Jørgen Peder; Hondoh, Takeo (2009): Direct observation of salts as micro-inclusions in the Greenland GRIP ice core. Journal of Glaciology, 55(193), 777-783

DOI

We provide the first direct evidence that a number of water-soluble compounds, in particular calcium sulfate (CaSO4 2H2O) and calcium carbonate (CaCO3), are present as solid, micron-sized inclusions within the Greenland GRIP ice core. The compounds are detected by two independent methods: micro-Raman spectroscopy of a solid ice sample, and energy-dispersive X-ray spectroscopy of individual inclusions remaining after sublimation. CaSO4 2H2O is found in abundance throughout the Holocene and the last glacial period, while CaCO3 exists mainly in the glacial period ice. We also present size and spatial distributions of the micro-inclusions. These results suggest that water-soluble aerosols in the GRIP ice core are dependable proxies for past atmospheric conditions.

The ion concentrations measured at each depth are averaged over five samples. Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150

Identifier
DOI https://doi.org/10.1594/PANGAEA.833919
Related Identifier https://doi.org/10.3189/002214309790152483
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.833919
Provenance
Creator Sakurai, Toshimitsu; Iizuka, Yoshinori; Horikawa, Shinichiro; Johnsen, Sigfús Jóhann; Dahl-Jensen, Dorthe; Steffensen, Jørgen Peder; Hondoh, Takeo
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 2009
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Representation
Language English
Resource Type Supplementary Dataset; Dataset
Format text/tab-separated-values
Size 87 data points
Discipline Earth System Research
Spatial Coverage (-37.620 LON, 72.570 LAT); Greenland
Temporal Coverage Begin 1989-06-01T00:00:00Z
Temporal Coverage End 1992-07-12T00:00:00Z