Size Distribution of Antarctic Micrometeorites

Details Size Distribution of Antarctic Micrometeorites Size Distribution of Antarctic Micrometeorites

Jan 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007esasp.643..145t&link_type=abstract

Workshop on Dust in Planetary Systems (ESA SP-643). September 26-30 2005, Kauai, Hawaii. Editors: Krueger, H. and Graps, A., p.1

Computer Science

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Scientific paper

Micrometeorites collected from the South Pole water well in 1995 and 2000 have terrestrial depositional ages of 1100-1500 AD and 800-1100 AD respectively. We measured a size distribution for micrometeorites collected in 2000. Compared to the size distribution measured in 1995 the tail slopes of the size distributions are the same. However the 2000 collection has twice as many micrometeorites and proportionally more large micrometeorites.We also tabulate the unmelted-to-melted ratio for micrometeorites in five size ranges and compare the results with previous collections. The unmelted-to-melted ratios obtained for this collection are similar to those from Greenland and an Antarctic collection of present-day micrometeorites. Collections from older Antarctic ice show larger and more variable ratios.

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