Ramzi Touchan, University of Arizona (IMAGE)
Caption
Ramzi Touchan of the University of Arizona's Laboratory of Tree-Ring Research teaches students techniques for taking tree-ring cores during his field work in Algeria.
Credit
Photo courtesy of R. Touchan, University of Arizona.
Usage Restrictions
This photo may be used only to illustrate a story about the research described in the release, 20th Century One of Driest in Nine Centuries for Northwest Africa.
License
Licensed content