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Using VSWIR Microimaging Spectroscopy to Explore the Mineralogical Diversity of HED Meteorites

Fraeman, Abigail A. and Ehlmann, Bethany L. and Northwood-Smith, Geraint W. D. and Liu, Yang and Wadhwa, Meenakshi and Greenberger, Rebecca N. (2016) Using VSWIR Microimaging Spectroscopy to Explore the Mineralogical Diversity of HED Meteorites. In: 2016 8th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS). IEEE , Piscataway, NJ, pp. 1-5. ISBN 9781538605905. http://resolver.caltech.edu/CaltechAUTHORS:20160902-094411611

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Abstract

We use VSWIR microimaging spectroscopy to survey the spectral diversity of HED meteorites at 80-μm/pixel spatial scale. Our goal in this work is both to explore the emerging capabilities of microimaging VSWIR spectroscopy and to contribute to understanding the petrologic diversity of the HED suite and the evolution of Vesta. Using a combination of manual and automated hyperspectral classification techniques, we identify four major classes of materials based on VSWIR absorptions that include pyroxene, olivine, Fe-bearing feldspars, and glass-bearing/featureless materials. Results show microimaging spectroscopy is an effective method for rapidly and non-destructively characterizing small compositional variations of meteorite samples and for locating rare phases for possible follow-up investigation. Future work will include incorporating SEM/EDS results to quantify sources of spectral variability and placing observations within a broader geologic framework of the differentiation and evolution of Vesta.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1109/WHISPERS.2016.8071804DOIArticle
http://ieeexplore.ieee.org/document/8071804PublisherArticle
http://www.ieee-whispers.comOrganizationConference Website
ORCID:
AuthorORCID
Fraeman, Abigail A.0000-0003-4017-5158
Ehlmann, Bethany L.0000-0002-2745-3240
Additional Information:© 2016 IEEE. The research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. © 2016. All rights reserved. Thanks to a JPL RTD grant to A.A.F. and a JPL PDF/RTD program grant to B.L.E. and D. Blaney for partial support of this work and to G. Rossman for providing samples.
Group:Keck Institute for Space Studies
Funders:
Funding AgencyGrant Number
NASA/JPL/CaltechUNSPECIFIED
Keck Institute for Space Studies (KISS)UNSPECIFIED
CaltechUNSPECIFIED
JPL Research and Technology Development FundUNSPECIFIED
Subject Keywords:Microimaging spectroscopy, VSWIR spectroscopy, HED meteorites, Vesta, spectral classification
Record Number:CaltechAUTHORS:20160902-094411611
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20160902-094411611
Official Citation:A. A. Fraeman, B. L. Ehlmann, G. W. D. Northwood-Smith, Y. Liu, M. Wadhwa and R. N. Greenberger, "Using VSWIR microimaging spectroscopy to explore the mineralogical diversity of HED meteorites," 2016 8th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS), Los Angeles, CA, 2016, pp. 1-5. doi: 10.1109/WHISPERS.2016.8071804. URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8071804&isnumber=8071655
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:70146
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:02 Sep 2016 18:56
Last Modified:27 Nov 2017 21:02

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