Michael L. Barnhardt, Ph.D.
Geologist
Quaternary Geology Section
Geologic Mapping and Hydrogeology Center
Phone: 217-244-2766 •
Fax: 217-244-2785
E-mail: barnhardt@isgs.illinois.edu

Major Research Interests
- Quaternary Geology Staff Page
- 3-D geologic mapping of Quaternary sediments
- Application of soils in surficial geologic mapping Soil
geomorphology
- Historical sedimentation, especially influence of human activity
on sedimentation rates, soil erosion, and gully development

Current Research Projects
- 3-D Geologic Mapping; Central Great Lakes Geologic Mapping
Coalition
- Surficial geologic mapping for STATEMAP and Illinois Geologic
Mapping Program (IGMap)
- Outreach activities, specifically transfer, interpretation, and
application of geologic mapping products and databases for use by
county and municipal agencies and the general public

Selected Publications
Barnhardt, M.L., 1988, Historical sedimentation in west
Tennessee gullies: Southeastern Geographer, v. 28, no. 1, p.
1-18.
Barnhardt, M.L., 1990, A 50-year old gully reclamation
project revisited: Journal of Soil and Water Conservation, v. 44,
no. 6, p. 562-565.
Barnhardt, M.L., E. Mehnert, C. Ray, and S.C. Schock,
1992, Characterization of the study areas for the pilot study:
Agricultural chemicals in rural, private wells in Illinois:
Cooperative Groundwater Report 15: Illinois State Geological Survey
and Illinois State Water Survey, 114 p.
Barnhardt, M.L., B.L. Herzog, W.R. Roy, I.G. Krapac, and
C.A. Smyth, 1993, Cost-effective procedures for site assessments at
agrichemical facilities in Illinois, Chapter 6: in Agrichemical
Facility Site Contamination Study, Illinois Department of
Agriculture and Illinois State Geological Survey, 44 p.
Krapac, I.G., W.R. Roy, C.A. Smyth, and M.L. Barnhardt,
1995, Occurrence and distribution of pesticides in soil at
agrichemical facilities in Illinois: Journal of Soil Contamination,
v. 4, no. 3, pp. 209-226.
Barnhardt, M.L. and others. 1996-present. IGQs, STATEMAP,
and Coalition project maps of aquifer sensitivity (Vincennes) and
surficial geology for Smithland, Paducah East, Little Cypress,
Paducah Northeast, Millstadt, Renault, Antioch, Wadsworth, and
Wauconda 7.5-minute quadrangles.

Ordering information for Illinois State
Geological Survey Publications.
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