Analyzing samlpes
Brad Baxter, right front, and Anna Lesko, with the U.S. Army Engineer Research and Development Center, analyze amendment samples using Electron-Probe Micro-Analysis at the University of Alaska Fairbanks– Advanced Instrumentation Laboratory. (U.S. Army Corps of Engineers Courtesy photo)

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Photo by: Oshawn Jefferson |  VIRIN: 230714-A-EN999-003.JPG