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Allan Kolker

Allan Kolker is a Research Geologist with the USGS Geology, Energy & Minerals (GEM) Science Center in Reston, VA.

Allan earned his Ph.D. in geochemistry from Stony Brook University and served on the geology faculty at the University of Nebraska-Lincoln prior to joining the USGS in 1996. His expertise in trace element geochemistry and geochemistry of coal is used in studies of coal quality, impact of energy use on the environment, and potential for recovery of critical elements from energy materials.

Dr. Kolker serves actively on committees pertaining to coal and the environment, and in arranging relevant topical sessions at professional meetings. He is a Fellow of the Geological Society of America and serves on the editorial board of the international journal Environmental Geochemistry and Health. He has supervised two USGS Mendenhall postdoctoral fellows and obtained extramural support from a range of sources to supplement USGS project activities. Most recently, Allan participated as co-editor of a special issue of the International Journal of Coal Geology on critical elements from coal and coal combustion products. He also developed a multiday short course, Topics in Coal Geochemistry, available as a USGS Open File Report, which followed its presentation internationally to USGS collaborators.


  • Ph.D. Geochemistry, Department of Earth and Space Sciences, Stony Brook University, 1989
  • M.S. Geology, Department of Geosciences, University of Massachusetts at Amherst, 1980
  • B.A. Geology, Department of Geology, Franklin and Marshall College, 1977

Work Experience

  • 1996 - present, Research Geologist, USGS Eastern Energy Resources Science Center, Reston, VA
  • 1990 - 1996, Assistant Professor, Department of Geology, University of Nebraska-Lincoln
  • 1989 - 1990, Postdoctoral Research Associate, Department of Applied Science, Brookhaven National Laboratory, Upton, NY
  • 1982 - 1983, Geologist, The University of Texas at Austin, Bureau of Economic Geology, Austin, TX
  • 1980 - 1981, Geologist/technical editor, USGS Office of International Geology, Reston, VA

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