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Larry Edwards operating a mass spectrometer

Larry Edwards operating a mass spectrometer

University of Minnesota scientist Larry Edwards operating a mass spectrometer used to obtain ages of stalagmite layers. Edwards uses the mass spectrometer to measure veruy small quantities of different forms of uranium and thorium, which come from powder from drilling stalagmites in caves. From these measurements, he can determine the ages of the layers, using the uranimum-thorium or 230Th dating method.
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42-43727192
Stock Photo ID:
42-43727192
Date Photographed:
November 18, 2011
Model Released:
No Release
Property Released:
No Release
Photographer:
Credit:
© Layne Kennedy/Corbis
License Type:
Rights Managed (RM)
Category:
Collection:
Eureka
Max File Size:
71 MB - 4088px × 6144px • 13.00in. × 20.00in @ 300 ppi

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