Imaging spectroscopy of geological samples and outcrops: Novel insights from microns to meters
Imaging spectroscopy is a powerful, non-destructive mineralogic tool that provides insights into a variety of geological processes. This remote measurement technique has been used for decades from orbital or aerial platforms to characterize surface compositions of Earth and other solar system bodies. These instruments have now been miniaturized for use in the laboratory and field, thereby enabling petrologic analyses of samples and outcrops. Here, we review the technique and present four examples showing the exciting science potential and new insights into geological processes.
© 2015 Geological Society of America. Manuscript received 29 May 2015; accepted 27 Aug. 2015. We would like to thank Headwall Photonics, Inc., especially David Bannon and Kwok Wong, for use of their hyperspectral imagers to acquire the images used in examples 1 and 2. We also thank the JPL team (Byron Van Gorp, Zakos Mouroulis, Jose Rodriguez, Mark Helmlinger, and Morgan Cable) for assistance in acquiring UCIS data in examples 3 and 4. Thanks to Mini Wadhwa (Arizona State University) for loan of the Murchison sample. Finally, we would like to thank Jerry Dickens for editorial handling and Adrian Brown and Fred Kruse for helpful reviews. Portions of this research were carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration.