The chemical composition of cluster IDPs using the XRF-Microprobe

Details The chemical composition of cluster IDPs using the XRF-Microprobe The chemical composition of cluster IDPs using the XRF-Microprobe

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28..363f&link_type=abstract

Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 363.

Other

Interplanetary Dust, Chemical Composition, Stratosphere, Air Sampling, X Ray Spectroscopy, Earth Atmosphere, Fragments, Chondrites

Scientific paper

The process of collecting interplanetary dust particles (IDPs) from the Earth's stratosphere by impact onto a rigid collection surface covered with a thin layer of silicone oil and carried by a high-speed aircraft separates the IDPs into two types, based crudely on structural strength: (1) those which remain intact and (2) those which fragment on collection (called 'cluster particles'). The authors have previously determined the element abundances in eight cluster fragments from the L2009 collector using the XRF-Microprobe at the National Synchrotron Light Source at Brookhaven National Laboratory (1996). To determine if the cluster fragments from other stratospheric collectors are chemically similar to the L2009 cluster fragments, measurements were made of the Fe normalized abundances of S, Ca, Ti, Cr, Mn, Fe, Ni, Cu, Zn, Ga, Ge, Se, and Br in six cluster fragments from the L2005 collector using the XRF-Microprobe. Although the six fragments show abundance patterns consistent with chondritic IDPs, they appear to be somewhat different from the L2009 fragments previously examined. Each of these six fragments is analyzed in this paper.

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