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Morphological Study of Insoluble Organic Matter Residues from PrimitiveInsoluble organic matter (IOM) constitutes a major proportion, 70-99%, of the total organic carbon found in primitive chondrites [1, 2]. One characteristic morphological component of IOM is nanoglobules [3, 4]. Some nanoglobules exhibit large N-15 and D enrichments relative to solar values, indicating that they likely originated in the ISM or the outskirts of the protoplanetary disk [3]. A recent study of samples from the Tagish Lake meteorite with varying levels of hydrothermal alteration suggest that nanoglobule abundance decreases with increasing hydrothermal alteration [5]. The aim of this study is to further document the morphologies of IOM from a range of primitive chondrites in order to determine any correlation of morphology with petrographic grade and chondrite class that could constrain the formation and/or alteration mechanisms.
Document ID
20120003571
Document Type
Conference Paper
Authors
Changela, H. G. (Naval Research Lab. Washington, DC, United States)
Stroud, R. M. (Naval Research Lab. Washington, DC, United States)
Peeters, Z. (Carnegie Institution of Washington Washington, DC, United States)
Nittler, L. R. (Carnegie Institution of Washington Washington, DC, United States)
Alexander, C. M. O'D. (Carnegie Institution of Washington Washington, DC, United States)
DeGregorio, B. T. (NASA Johnson Space Center Houston, TX, United States)
Cody, G. D. (Carnegie Institution of Washington Washington, DC, United States)
Date Acquired
August 25, 2013
Publication Date
March 19, 2012
Subject Category
Geophysics
Report/Patent Number
JSC-CN-26020
Meeting Information
43rd Lunar and Planetary Science Conference(The Woodlands, TX)
Distribution Limits
Public
Copyright
Public Use Permitted.

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