David A. Grimley, Ph. D.

Phone: 217-244-7324 • Fax: 217-244-2785
E-mail: grimley@isgs.illinois.edu

Major Research Interests

• Quaternary Geology Staff Page
• Stratigraphy, paleoclimate and paleoenvironment of Illinoian and pre-Illinoian sediments and paleosols in SW Illinois
• Provenance of loess and lake sediment records, based on mineralogy, magnetic properties and elemental composition
• Utilization of magnetic susceptibility for delineation of hydric (wetland) soils and for ecological restoration

Current Research Projects

• Surficial geology mapping in the St. Louis Metro East area (Jersey, Madison, St. Clair, and Monroe Counties)
• Correlation of soil magnetic suscepitability to distribution of native tree and prairie species; utilization in restoration
• Geologic history of a fossil mammoth site in Elsah, IL
• Comparision of paleoclimate and paleoenvironment of Wisconsinan, Illinoian and pre-Illinoian deposits in SW Illinois based on fossil assemblage, mineral and magnetic methods

Selected Publications

Grimley, D.A. and A.C. Phillips, 2006, Surficial Geology of Madison County, Illinois: Illinois State Geological Survey, Illinois Preliminary Geologic Map, IPGM Madison County-SG, 1:100,000.

Grimley, D.A., 2006, Surficial Geology of Mascoutah Quadrangle, St. Clair County, Illinois:Illinois State Geological Survey, Illinois Preliminary Geologic Map, IPGM Mascoutah-SG, 1:24,000.

B.B. Curry and D.A. Grimley, 2006, Provenance, age, and environment of mid-Wisconsin Episode slackwater lake sediment in the St. Louis Metro East area, U.S.A., Quaternary Research, v. 65, p. 108-122.

Grimley, D.A., Arruda, N.K., and M.W. Bramstedt, 2004, Using magnetic susceptibility to facilitate more rapid, reproducible, and precise delineation of hydric soils in the midwestern USA, Catena, v. 58, p. 183-213.

Grimley, D.A., L.R. Follmer, R.E. Hughes, and P.A. Solheid, 2003, Modern, Sangamon, and Yarmouth soil development in loess of unglaciated southwestern Illinois: Quaternary Science Reviews, v.22, p.225-244.

Grimley, D.A., B.J Stiff, and M.J. Andrew, 2001, Geologic road map of Illinois: Surface deposits and landscapes: Illinois State Geological Survey, Illinois Map 10, scale 1:760,320.

Grimley, D.A., A.P. Phillips, L.R Follmer, H. Wang, and R.S. Nelson, 2001, Quaternary and environmental geology of the St. Louis Metro East area: in D. Malone (ed), Guidebook for Field Trip for the 35^th Annual Meeting of the North-Central Section of the Geological Society of America: Illinois State Geological Survey Guidebook 33, p. 21-73.

Grimley, D.A., 2000, Glacial and nonglacial sediment contributions to Wisconsin Episode loess in the central United States: Geological Society of America Bulletin, v. 112, no. 10, p. 1475-1495.

Grimley, D.A., and M.J. Vepraskas, 2000, Utilization of magnetic susceptibility for delineating hydric soils: Soil Science Soil of America Journal, v. 64, no. 6, p. 2184-2180.

Ordering information for Illinois State Geological Survey Publications.