USGS

Photographs of a Variety of Activities

Unless otherwise noted, photographs by Scott Christenson, U.S. Geological Survey
Jim Erdman sampling cottonwood leaves
Dr. Jim Erdman (USGS) sampling leaves from cottonwood trees. The leaves were chemically analyzed and used to map the position of the leachate plume.


Ground-penetrating radar
USGS using ground-penetrating radar to view sedimentary structures in the Canadian River alluvium.


Peeper
Partially submerged peeper sampler in the wetland overlying the leachate plume
Photograph by Dr. Isabelle Cozzarelli (USGS)

Extracting peeper
Scott Christenson (USGS) extracting peeper from the wetland overlying the leachate plume
Photograph by Dr. Isabelle Cozzarelli (USGS)

Michelle and peeper
Dr. Michelle Lorah (USGS) with a peeper sampler just removed from the wetland
Photograph by Dr. Isabelle Cozzarelli (USGS)

Tracey and peeper
Tracey Spencer using a electrochemical analyzer to measure chemistry in peeper samling chambers
Photograph by Dr. Isabelle Cozzarelli (USGS)

[ USGS, Oklahoma District Home Page | Norman Landfill Home Page ]
http://ok.water.usgs.gov/norlan/other.html
For comments and questions about this web page, contact:
email iconScott Christenson

Last modified: Fri Dec 8 14:22:14 2000