GSA Today
Volume 32, Issue 9

Cover image

This rock outcrop of the Kinblade Formation chronicles paleoenvironmental change in the early Ordovician of Oklahoma, USA. To study this stratigraphic history, the authors collected a sample from each bed in the sequence and use their new camera setup and workflows to capture multispectral petrographic images to complement field observations and geochemical measurements. Like tiles in a mosaic, these image archives constrain the physical rock properties that record paleoenvironment, influence geochemical interpretations, and ultimately form a snapshot of Earth’s history.

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