(Table 1) Micro-inclusion counts and ion concentrations in the five GRIP ice-core sections, supplement to: Sakurai, Toshimitsu; Iizuka, Yoshinori; Horikawa, Shinichiro; Johnsen, Sigfus J; 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.

Identifier
DOI http://dx.doi.org/doi:10.1594/PANGAEA.833919
Metadata Access http://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite3&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.833919
Provenance
Creator Horikawa, Shinichiro;Iizuka, Yoshinori;Johnsen, Sigfus J;Sakurai, Toshimitsu;Hondoh, Takeo;Dahl-Jensen, Dorthe;Steffensen, Jørgen Peder
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 2009
Rights Creative Commons Attribution 3.0 Unported (CC-BY)
Representation
Language English
Resource Type Supplementary Dataset
Format text/tab-separated-values
Coverage
Discipline Earth System Research
Spatial Coverage (73N,38W)
Temporal Point 1989-06-01T11:59:59Z