Magnesium methanesulfonate salt found in the Dome Fuji (Antarctica) ice core

Using micro-Raman spectroscopy, we identified the chemical forms of methanesulfonate salt particles in reference samples of the Dome Fuji (Antarctica) ice core. We found only (CH3SO3)2Mg・nH2O among methanesulfonate salts, and this salt particle is most prevalent in the Last Glacial Maximum (LGM) ice...

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Bibliographic Details
Published in:Journal of Glaciology
Main Authors: Sakurai, Toshimitsu, Ohno, Hiroshi, Genceli, F. Elif, Horikawa, Shinichirou, Iizuka, Yoshinori, Uchida, Tsutomu, Hondoh, Takeo
Format: Article in Journal/Newspaper
Language:English
Published: International Glaciological Society
Subjects:
452
Dome Fuji
Antarc*
Antarctica
ice core
Journal of Glaciology
Online Access:http://hdl.handle.net/2115/45541
https://doi.org/10.3189/002214310794457335
Description
Summary:Using micro-Raman spectroscopy, we identified the chemical forms of methanesulfonate salt particles in reference samples of the Dome Fuji (Antarctica) ice core. We found only (CH3SO3)2Mg・nH2O among methanesulfonate salts, and this salt particle is most prevalent in the Last Glacial Maximum (LGM) ice. We suggest that during the LGM, (CH3SO3)2Mg・nH2O may have formed in the atmosphere through the chemical reaction of CH3SO3H with sea salts, but probably not in the firn and ice due to the neutralization of acid in LGM ice of inland Antarctica.

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