Automated SEM Analysis of Fine-Grained Dust from Antarctica Ice Cores

Details Automated SEM Analysis of Fine-Grained Dust from Antarctica Ice Cores Automated SEM Analysis of Fine-Grained Dust from Antarctica Ice Cores

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27.1355v&link_type=abstract

Lunar and Planetary Science, volume 27, page 1355

Physics

1

Automated Analysis, Dust: Volcanic, Micrometeorites

Scientific paper

The use of appropriate geochemical diagrams to quickly screen the dominant terrestrial dust should help glaciologists in investigating past volcanic activities and quantifying changes in atmospheric circulation patterns. Automated analysis of two dust samples from Antarctic ice cores shows that the small particles (0.3-5 micrometers) are of crustal and probably volcanic origin. The abundance of interplanetary dust is very low. Only 1 particle in about 1500 is possibly of extraterrestrial origin. This is in sharp contrast to the fairly high abundance of interplanetary dust particles in the stratospheric dust and among the larger (50-300 micrometers) dust particles from Antarctic blue ice.

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