Journal
SCIENCE
Volume 289, Issue 5487, Pages 2101-2105Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.289.5487.2101
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We report major element composition ratios for regions of the asteroid 433 Eros imaged during two solar flares and quiet sun conditions during the period of May to July 2000, Low aluminum abundances for all regions argue against global differentiation of Eros. Magnesium/silicon, aluminum/silicon, calcium/silicon, and iron/silicon ratios are best interpreted as a relatively primitive, chondritic composition. Marked depletions in sulfur and possible aluminum and calcium depletions, relative to ordinary chondrites, may represent signatures of Limited partial melting or impact volatilization.
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