Using VSWIR microimaging spectroscopy to explore the mineralogical diversity of HED meteorites

Abigail A. Fraeman, Bethany L. Ehlmann, Geraint W.D. Northwood-Smith, Yang Liu, Meenakshi Wadhwa, Rebecca N. Greenberger

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

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.

Original languageEnglish (US)
Title of host publication2016 8th Workshop on Hyperspectral Image and Signal Processing
Subtitle of host publicationEvolution in Remote Sensing, WHISPERS 2016
PublisherIEEE Computer Society
ISBN (Electronic)9781509006083
DOIs
StatePublished - Jun 28 2016
Event8th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, WHISPERS 2016 - Los Angeles, United States
Duration: Aug 21 2016Aug 24 2016

Publication series

NameWorkshop on Hyperspectral Image and Signal Processing, Evolution in Remote Sensing
Volume0
ISSN (Print)2158-6276

Other

Other8th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, WHISPERS 2016
CountryUnited States
CityLos Angeles
Period8/21/168/24/16

Keywords

  • HED meteorites
  • Microimaging spectroscopy
  • Spectral classification
  • VSWIR spectroscopy
  • Vesta

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Signal Processing

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