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Infrared Micro-Spectroscopy of Organic and Hydrous Components in Some Antarctic MicrometeoritesMicrometeorites extracted from Antarctic ice are a major source of extraterrestrial materials available for study in the laboratory. Materials in this size range are important because the peak in the mass flux distribution of extraterrestrial particles accreted by the Earth occurs for particles approximately 200 microns in diameter with a mass accretion rate estimated at approximately 40 x 10(exp 6) kilograms per year. It has been suggested that micrometeorites may have contributed much pre-biotic organic matter to the early Earth, but the types and abundances of organic material in micrometeorites are poorly known. We have conducted infrared (IR) micro-spectrocopy of small micrometeorites (about 100 microns in size) in order to characterize organic matter that is present in the particles. The obtained results were compared with IR signatures of representative carbonaceous chondrites.
Document ID
Document Type
Conference Paper
Suzuki, A.
(Kyushu Univ. Japan)
Kebukawa, Y.
(Tokyo Inst. of Tech. Tokyo, Japan)
Nakashima, S.
(Tokyo Inst. of Tech. Tokyo, Japan)
Keller, L. P.
(NASA Johnson Space Center Houston, TX, United States)
Zolensky, M. E.
(NASA Johnson Space Center Houston, TX, United States)
Nakamura, T.
(Kyushu Univ. Japan)
Date Acquired
September 7, 2013
Publication Date
January 1, 2005
Publication Information
Publication: Lunar and Planetary Science XXXVI, Part 18
Subject Category
Lunar And Planetary Science And Exploration
Distribution Limits
Public Use Permitted.
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