Photographs of a Variety of Activities
Unless otherwise noted, photographs by Scott Christenson, U.S. Geological Survey
Dr. Jim Erdman (USGS) sampling leaves from cottonwood trees. The leaves were
chemically analyzed and used to map the position of the leachate plume.
USGS using ground-penetrating radar to view sedimentary structures in the
Canadian River alluvium.
Partially submerged peeper sampler in the wetland overlying the leachate plume
Photograph by Dr. Isabelle Cozzarelli (USGS)
Scott Christenson (USGS) extracting peeper from the wetland overlying the
leachate plume
Photograph by Dr. Isabelle Cozzarelli (USGS)
Dr. Michelle Lorah (USGS) with a peeper sampler just removed from the wetland
Photograph by Dr. Isabelle Cozzarelli (USGS)
Tracey Spencer using a electrochemical analyzer to measure chemistry
in peeper samling chambers
Photograph by Dr. Isabelle Cozzarelli (USGS)
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Last modified: Fri Dec 8 14:22:14 2000