Synchrotron x-ray fluorescence analyses of stratospheric cosmic dust: New results for chondritic and nickel-depleted particles
Abstract
Trace element abundance determinations were performed using synchrotron x-ray fluorescence on nine particles collected from the stratosphere and classified as ''cosmic''. Improvements to the Synchrotron Light Source allowed the detection of all elements between Cr and Mo, with the exceptions of Co and As, in our largest particle. The minor and trace element abundance patterns of three Ni-depleted particles were remarkably similar to those of extraterrestrial igneous rocks. Fe/Ni and Fe/Mn ratios suggest that one of these may be of lunar origin. All nine particles exhibited an enrichment in Br, ranging form 1.3 to 38 times the Cl concentration. Br concentrations were uncorrelated with particle size, as would be expected for a surface correlated component acquires from the stratosphere. 27 refs., 4 figs., 2 tabs.
- Authors:
- Publication Date:
- Research Org.:
- Brookhaven National Lab., Upton, NY (USA)
- OSTI Identifier:
- 6064519
- Report Number(s):
- BNL-42627; CONF-8903111-4
ON: DE89014032
- DOE Contract Number:
- AC02-76CH00016
- Resource Type:
- Conference
- Resource Relation:
- Conference: Lunar planetary science conference, Houston, TX, USA, 12 Mar 1989; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COSMIC DUST; X-RAY FLUORESCENCE ANALYSIS; CHONDRITES; IGNEOUS ROCKS; LUNAR MATERIALS; PARTICLE SIZE; STRATOSPHERE; CHEMICAL ANALYSIS; DUSTS; EARTH ATMOSPHERE; MATERIALS; METEORITES; NONDESTRUCTIVE ANALYSIS; ROCKS; SIZE; STONE METEORITES; X-RAY EMISSION ANALYSIS; 640101* - Astrophysics & Cosmology- Cosmic Radiation
Citation Formats
Flynn, G J, and Sutton, S R. Synchrotron x-ray fluorescence analyses of stratospheric cosmic dust: New results for chondritic and nickel-depleted particles. United States: N. p., 1989.
Web.
Flynn, G J, & Sutton, S R. Synchrotron x-ray fluorescence analyses of stratospheric cosmic dust: New results for chondritic and nickel-depleted particles. United States.
Flynn, G J, and Sutton, S R. 1989.
"Synchrotron x-ray fluorescence analyses of stratospheric cosmic dust: New results for chondritic and nickel-depleted particles". United States. https://www.osti.gov/servlets/purl/6064519.
@article{osti_6064519,
title = {Synchrotron x-ray fluorescence analyses of stratospheric cosmic dust: New results for chondritic and nickel-depleted particles},
author = {Flynn, G J and Sutton, S R},
abstractNote = {Trace element abundance determinations were performed using synchrotron x-ray fluorescence on nine particles collected from the stratosphere and classified as ''cosmic''. Improvements to the Synchrotron Light Source allowed the detection of all elements between Cr and Mo, with the exceptions of Co and As, in our largest particle. The minor and trace element abundance patterns of three Ni-depleted particles were remarkably similar to those of extraterrestrial igneous rocks. Fe/Ni and Fe/Mn ratios suggest that one of these may be of lunar origin. All nine particles exhibited an enrichment in Br, ranging form 1.3 to 38 times the Cl concentration. Br concentrations were uncorrelated with particle size, as would be expected for a surface correlated component acquires from the stratosphere. 27 refs., 4 figs., 2 tabs.},
doi = {},
url = {https://www.osti.gov/biblio/6064519},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jun 01 00:00:00 EDT 1989},
month = {Thu Jun 01 00:00:00 EDT 1989}
}