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An XRF scan of a sediment core combines digital photograph with x-ray image.

An XRF scan of a sediment core combines digital photograph with x-ray image.
An XRF scan of a sediment core combines digital photograph with x-ray image.
An XRF scan of a sediment core combines digital photograph with x-ray image.
An XRF scan of a sediment core combines digital photograph with x-ray image.
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514130
Giosan, Liviu
An XRF scan of a sediment core combines digital photograph with x-ray image.
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01/01/2006
cariaco-example_C.jpg
Date is approximate.
Caption from Oceanus magazine, Vol. 45, No. 1, Pg. 25:
Liviu Giosan and colleagues extract a sediment core from a marsh to find clues to the evolution and past climate of the Danube Delta. Above (shown here): An XRF scan of a sediment core from offshore Venezuela combines a digital photograph (brown) with an X-ray image (gray and black) that reveals sedimentary layers otherwise invisible to the naked eye. The concentration of titanium (overlaid in yellow) indicates past fluctuations in atmospheric moisture and dust in the region.
Courtesy of Liviu Giosan
Copyright © Woods Hole Oceanographic Institution
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