Chemical Compounds of Water-Soluble Impurities in Dome Fuji Ice Core
The amounts of water-soluble impurities in ice cores have been widely discussed in past research on prehistoric climates; in those studies, the analysis of the soluble-aerosol signals of several ion concentrations took place after the ice cores were melted. However, the chemical compounds of the imp...
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/45453 2023-05-15T16:38:47+02:00 Chemical Compounds of Water-Soluble Impurities in Dome Fuji Ice Core Iizuka, Yoshinori Ohno, Hiroshi Sakurai, Toshimitsu Horikawa, Shinichiro Hondoh, Takeo http://hdl.handle.net/2115/45453 eng eng Institute of Low Temperature Science, Hokkaido University Physics of Ice Core Records II : Papers collected after the 2nd International Workshop on Physics of Ice Core Records, held in Sapporo, Japan, 2-6 February 2007. Edited by Takeo Hondoh http://hdl.handle.net/2115/45453 salt inclusion water-soluble impurities Dome Fuji ice core Raman spectroscopy 400 bulletin (article) fthokunivhus 2022-11-18T01:02:09Z The amounts of water-soluble impurities in ice cores have been widely discussed in past research on prehistoric climates; in those studies, the analysis of the soluble-aerosol signals of several ion concentrations took place after the ice cores were melted. However, the chemical compounds of the impurities being studied were unclear, due to the ionization of the impurities being caused by the melting of the ice cores. In this paper, the chemical compounds of water-soluble impurities in Dome Fuji ice core are discussed and analyzed using micro-Raman spectroscopy and ion chromatography. Raman spectroscopy helped identify micro-inclusions within ice grains as water-soluble impurities made up primarily of sodium sulfate formed in warm periods and calcium sulfate in cold periods. The major chemical compounds of the water-soluble impurities (sodium sulfate and calcium sulfate) were deduced by examining ion concentrations and the stability of chemical compounds. The amounts of impurities reflect the differences in climatic time periods, as the environment was acidic during warm times and reductive during cold. IV. Chemical properties and isotopes Article in Journal/Newspaper ice core Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Dome Fuji ENVELOPE(39.700,39.700,-77.317,-77.317) |
institution |
Open Polar |
collection |
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
salt inclusion water-soluble impurities Dome Fuji ice core Raman spectroscopy 400 |
spellingShingle |
salt inclusion water-soluble impurities Dome Fuji ice core Raman spectroscopy 400 Iizuka, Yoshinori Ohno, Hiroshi Sakurai, Toshimitsu Horikawa, Shinichiro Hondoh, Takeo Chemical Compounds of Water-Soluble Impurities in Dome Fuji Ice Core |
topic_facet |
salt inclusion water-soluble impurities Dome Fuji ice core Raman spectroscopy 400 |
description |
The amounts of water-soluble impurities in ice cores have been widely discussed in past research on prehistoric climates; in those studies, the analysis of the soluble-aerosol signals of several ion concentrations took place after the ice cores were melted. However, the chemical compounds of the impurities being studied were unclear, due to the ionization of the impurities being caused by the melting of the ice cores. In this paper, the chemical compounds of water-soluble impurities in Dome Fuji ice core are discussed and analyzed using micro-Raman spectroscopy and ion chromatography. Raman spectroscopy helped identify micro-inclusions within ice grains as water-soluble impurities made up primarily of sodium sulfate formed in warm periods and calcium sulfate in cold periods. The major chemical compounds of the water-soluble impurities (sodium sulfate and calcium sulfate) were deduced by examining ion concentrations and the stability of chemical compounds. The amounts of impurities reflect the differences in climatic time periods, as the environment was acidic during warm times and reductive during cold. IV. Chemical properties and isotopes |
format |
Article in Journal/Newspaper |
author |
Iizuka, Yoshinori Ohno, Hiroshi Sakurai, Toshimitsu Horikawa, Shinichiro Hondoh, Takeo |
author_facet |
Iizuka, Yoshinori Ohno, Hiroshi Sakurai, Toshimitsu Horikawa, Shinichiro Hondoh, Takeo |
author_sort |
Iizuka, Yoshinori |
title |
Chemical Compounds of Water-Soluble Impurities in Dome Fuji Ice Core |
title_short |
Chemical Compounds of Water-Soluble Impurities in Dome Fuji Ice Core |
title_full |
Chemical Compounds of Water-Soluble Impurities in Dome Fuji Ice Core |
title_fullStr |
Chemical Compounds of Water-Soluble Impurities in Dome Fuji Ice Core |
title_full_unstemmed |
Chemical Compounds of Water-Soluble Impurities in Dome Fuji Ice Core |
title_sort |
chemical compounds of water-soluble impurities in dome fuji ice core |
publisher |
Institute of Low Temperature Science, Hokkaido University |
url |
http://hdl.handle.net/2115/45453 |
long_lat |
ENVELOPE(39.700,39.700,-77.317,-77.317) |
geographic |
Dome Fuji |
geographic_facet |
Dome Fuji |
genre |
ice core |
genre_facet |
ice core |
op_relation |
Physics of Ice Core Records II : Papers collected after the 2nd International Workshop on Physics of Ice Core Records, held in Sapporo, Japan, 2-6 February 2007. Edited by Takeo Hondoh http://hdl.handle.net/2115/45453 |
_version_ |
1766029120764903424 |