Geochemical Investigations of Ice Sheets in Mizuho Plateau and West Enderby Land

Chemical features and profiles of ice sheets in Mizuho Plateau and West Enderby Land have been revealed by means of newly developed analytical techniques such as atomic absorption spectrophotometry and isotope dilution mass- spectrometry. The chemical concentration is at the level of only ppb even f...

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Bibliographic Details
Main Author: Murozumi,Masayo
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
Format: Text
Language:English
Published: 1976
Subjects:
Geology
Geochemistry and Mineralogy
Snow
Ice and Permafrost
*GEOCHEMISTRY
*ICE CAPS
MAGNESIUM
CALCIUM
SODIUM
DUST
ICE
CHEMICAL ANALYSIS
SILICATES
POTASSIUM
ANTARCTIC REGIONS
CONDENSATION NUCLEI
*Ice sheets
Mizuho plateau
West enderby land
Enderby land
Antarctic
Mizuho
Mizuho Plateau
Antarc*
Enderby Land
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/ADA030311
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA030311
Description
Summary:Chemical features and profiles of ice sheets in Mizuho Plateau and West Enderby Land have been revealed by means of newly developed analytical techniques such as atomic absorption spectrophotometry and isotope dilution mass- spectrometry. The chemical concentration is at the level of only ppb even for the major components, Na, K, Ca and Mg, chemical properties being homogeneous in the surface sheet but of much vertical complexity. Silicate dusts which functioned as the condensation nuclei for the formation of snow flakes are poor, while sea salts account for more than 90 percent of the total weight of components. Annual accumulation of chemical components microgram/sq cm is 0.1 for silicate dusts and 0.40, 0.03, 0.1 and 0.06 for Na, K, Mg and Ca originating in the latter source. (Author) Trans. of Japan, Antarctic Record (Japan) n54. p49-67 Dec 75.

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