Rock Sample
Image courtesy of the NOAA Office of Ocean Exploration and Research, 2017 Laulima O Ka Moana.
Matt Dornback, from the NOAA National Centers for Environmental Information, photographs a rock sample from the day’s dive. Rock samples are being collected during most dives for later age-dating and geochemical analysis to provide more information about the geologic history and age of seamounts in the Johnston Atoll Unit.
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