GSA Today
Volume 25, Number 12 (December 2015)

Cover image

About the cover:
Top: Hyperspectral image of an outcrop of sedimentary rocks along Mills Creek in California fading from near true color (left) into a spectral parameter map highlighting lithologic differences (right). Below are close-up views of portions of the outcrop with semi-transparent spectral parameters overlain. This image was acquired with the Ultra Compact Imaging Spectrometer developed by the
Jet Propulsion Laboratory, California Institute of Technology. See related article, p. 4–11.

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