(Table 1) Micro-inclusion counts and ion concentrations in the five GRIP ice-core sections ...

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-Rama...

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Bibliographic Details
Main Authors: Sakurai, Toshimitsu, Iizuka, Yoshinori, Horikawa, Shinichiro, Johnsen, Sigfús Jóhann, Dahl-Jensen, Dorthe, Steffensen, Jørgen Peder, Hondoh, Takeo
Format: Dataset
Language:English
Published: PANGAEA 2009
Subjects:
Depth, top/min
Depth, bottom/max
DEPTH, ice/snow
Epoch
AGE
Number
Particle concentration
Standard deviation
Diameter
Thickness
Chloride anion
Nitrate ion
Sulfate anion
Sodium cation
Magnesium cation
Calcium cation
ISTUK electromechanical drill
GRIP
Sampling/drilling ice
Greenland Ice Core Projects GRIP/GISP/NGRIP
International Polar Year 2007-2008 IPY
GISP
Greenland
Greenland ice core
ice core
International Polar Year
IPY
NGRIP
Online Access:https://dx.doi.org/10.1594/pangaea.833919
https://doi.pangaea.de/10.1594/PANGAEA.833919
Description
Summary: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 ...

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