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


Sakurai T. , Ohno H., GENCELI F. E. , Horikawa S., Iizuka Y., Uchida T., ...More

JOURNAL OF GLACIOLOGY, vol.56, no.199, pp.837-842, 2010 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 56 Issue: 199
  • Publication Date: 2010
  • Doi Number: 10.3189/002214310794457335
  • Title of Journal : JOURNAL OF GLACIOLOGY
  • Page Numbers: pp.837-842

Abstract

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 center dot nH(2)O among methanesulfonate salts, and this salt particle is most prevalent in the Last Glacial Maximum (LGM) ice. We suggest that during the LGM, (CH3SO3)(2)Mg center dot nH(2)O 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.