Bedrock Geology and Industrial Minerals Section Staff

Staff List

Industrial Minerals and Resource Economics staff members are available to answer questions about industrial mineral resources and Illinois geology. Select staff names below for complete contact information.

Zakaria Lasemi, Ph.D.

Senior Economic Geologist and Section Head
      • crushed stone aggregate resources
      • high-calcium limestone resources
      • characterizing limestone and dolomite for flue gas desulfurization
      • limestone and aggregate petrography
      • Mississippian geology and stratigraphy

Kathleen M. Henry, B.S.

Administrative Clerk

Shane K. Butler, M.S.

Geologic Specialist

F. Brett Denny, M.S.

Associate Economic Geologist
      • geologic mapping

Joseph Devera, M.S.

Senior Paleontologist
      • geologic mapping
      • paleontology
      • stratigraphy

Mark A. Hart

Instrument and Measurement Technician II

Michael Lewsader, B.S.

Visiting Laboratory Specialist

Xiaodong Miao, Ph.D

Associate Sedimentologist
      • geomorphology and Quaternary geology
      • sand and gravel mapping
      • eolian loess and sand
      • luminescence dating
      • soil and paleosols
      • paleoclimate and global change

Donald G. Mikulic, Ph.D.

Senior Economic Geologist
      • crushed stone aggregate resources of the northern one-third of the state
      • silurian geology and stratigraphy
      • history of the stone industry

Robert R. Mumm

Administrative Clerk
      • core and sample collections

Mary Seid, B.A.

Geologic Specialist
      • interpretation of geological maps
      • specialist in field geology
      • investigates natural disasters in Illinois
      • educational outreach and geologic mapping

C. Pius Weibel, Ph.D.

Senior Bedrock Geologist
      • glacial geology in the Peoria area
      • computer-aided geologi mapping
      • karst geology
      • regional bedrock geology

Honorary Staff

Subhash B. Bhagwat, Ph.D., M.B.A.

Resource Economist, Honorary
      • mineral industry in Illinois
      • water resources of Illinois
      • benefit/cost analysis
      • underground mining feasibility

Randall E. Hughes, Ph.D.

Clay Mineralogist, Honorary
      • clay mineralogy
      • clay and shale resources
      • geoarcheology

Dennis Kolata, Ph.D.

Geologist, Honorary
      • geologic mapping
      • stratigraphy and sequence stratigraphy
      • ordovician geology and stratigraphy

Rodney D. Norby, Ph.D.

Paleontologist, Honorary
      • paleontology
      • conodont biostratigraphy
      • paleontology collection curator

Updated 10/13/2011 SLD