Title
Infrared imaging spectroscopy with micron resolution of Sutter's Mill meteorite grains
Abbreviated Journal Title
Meteorit. Planet. Sci.
Keywords
DIFFUSE INTERSTELLAR-MEDIUM; INSOLUBLE ORGANIC-MATTER; CARBONACEOUS; CHONDRITES; HYDROUS COMPONENTS; COMET 81P/WILD-2; SOLAR-SYSTEM; MICROSPECTROSCOPY; ASTEROIDS; STARDUST; ORIGIN; Geochemistry & Geophysics
Abstract
Synchrotron-based Fourier transform infrared spectroscopy and Raman spectroscopy are applied with submicrometer spatial resolution to multiple grains of Sutter's Mill meteorite, a regolith breccia with CM1 and CM2 lithologies. The Raman and infrared active functional groups reveal the nature and distribution of organic and mineral components and confirm that SM12 reached higher metamorphism temperatures than SM2. The spatial distributions of carbonates and organic matter are negatively correlated. The spatial distributions of aliphatic organic matter and OH relative to the distributions of silicates in SM2 differ from those in SM12, supporting a hypothesis that the parent body of Sutter's Mill is a combination of multiple bodies with different origins. The high aliphatic CH2/CH3 ratios determined from band intensities for SM2 and SM12 grains are similar to those of IDPs and less altered carbonaceous chondrites, and they are significantly higher than those in other CM chondrites and diffuse ISM objects.
Journal Title
Meteoritics & Planetary Science
Volume
49
Issue/Number
11
Publication Date
1-1-2015
Document Type
Article
DOI Link
Language
English
First Page
2027
Last Page
2037
WOS Identifier
ISSN
1086-9379
Recommended Citation
"Infrared imaging spectroscopy with micron resolution of Sutter's Mill meteorite grains" (2015). Faculty Bibliography 2010s. 6331.
https://stars.library.ucf.edu/facultybib2010/6331
Comments
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