• Ph.D., Geology, University of Illinois, 1996
• A.B., Astrogeophysics, Colgate University, 1988

Illinois Experts Profile

• Use of magnetic fly ash in identifying post-European settlement alluvium thickness and its record of atmospheric pollution
• Stratigraphy and paleoenvironment of Illinois Episode (MIS 6) and pre-Illinois Episode (MIS 12-20) sediments and paleosols in SW Illinois
• Fossil Quaternary gastropod records (loess, lacustrine) for paleoclimate and paleoecological interpretations
• Provenance of loess and lake sediment records (mineralogy, magnetic properties, elemental composition)
• Utilization of magnetic susceptibility for delineation of hydric (wetland) soils and as a soil drainage proxy for use in ecological restoration
• Geomorphology and history of Illinois Episode glaciation in Illinois

• Chronology, paleoclimate-paleoecology (gastropod assemblages, isotopes) and mechanisms of loess deposition in the Central Lowlands, USA
• Surficial geologic mapping (and bedrock surface topography) in the Kaskaskia River Basin in southwestern Illinois, USA
• Correlation of soil magnetic susceptibility to distribution of native tree and prairie species; utilization in restoration
• Comparision of paleoclimate and paleoenvironment among Wisconsin, Illinois and pre-Illinois Episode glaciations in southwestern Illinois based on fossil assemblages, mineral and magnetic methods

• Illinois-Indiana Sea Grant (NOAA); (co-PI with MaryPat McGuire and others):  Hydrogeologic soil research for green stormwater infrastructure planning and design: new methods for adapting coastal communities, [2018 – 2020;  $189,160;  funding recommended]
• National Science Foundation Award EAR 16-37481 (co-PI with Jessica Conroy and William Guenthner):  Chronologies and Mechanisms of Last Glacial Loess Deposition in the Central Lowlands of North America, [2016 – 2019; $349,582]
• USGS-STATEMAP (co-PI); "The Illinois STATEMAP Geologic Mapping Proposal",  [2015 – 2019; yearly funding of $155,000 to $172,000].

Conroy CL, Karamperidou C. Grimley DA, Guenthner WR, 2019. Surface winds across eastern and mid-continental North America during the Last Glacial Maximum: A new data-model assessment. Quaternary Science Reviews 220: 14-29.

Grimley DA, Curry BB, Nash TA, Huot S.  2019. Comment on “Holocene loess in Illinois revealed by OSL dating: Implications for stratigraphy and archeology of the Midwest United States”. Quaternary Science Reviews 216: 116-118.

Anders AM, EA Bettis III, DA Grimley, AJ Stumpf, P Kumar. 2018. Impacts of Quaternary history on critical Zone structure and processes: examples and a conceptual model from the intensively managed landscapes critical zone observatory.  Frontiers in Earth Science 6: 1-16.

Schaetzl RJ, EA Bettis III, O Crouvi, KE Fitzsimmons, DA Grimley, U Hambach, F Lehmkuhl, SB Marković, JA Mason, P Owczarek, HM Roberts, D-D Rousseau, T Stevens, J Vandenberghe, M Zárate, D Veres, S Yang, M Zech, JL Conroy, AK Dave, D Faust, Q Hao, I Obreht, C Prud’hommed, I Smalley, A Tripaldi, C Zeeden, R Zech. 2018. Approaches and challenges to the study of loess—Introduction to the LoessFest Special Issue.  Quaternary Research 89: 563–618.

Nash TA, Conroy JL, Grimley DA, Guenthner WR, and Curry BB. 2018. Episodic deposition of Illinois Valley Peoria silt in association with Lake Michigan Lobe fluctuations during the last glacial maximum. Quaternary Research 89: 739-755.

Grimley DA, Phillips AC, McKay ED, III, and Anders AM, 2017, Geomorphic expression of the Illinois Episode glaciation (marine isotope stage 6) in Illinois: Moraines, sublobes, subglacial lineations, and possible ice streaming, in Kehew, A.E., and Curry, B.B., eds., Quaternary Glaciation of the Great Lakes Region: Process, Landforms, Sediments, and Chronology: Geological Society of America Special Paper 530, p. 1–25, doi:10.1130/2017.2530(01).

Grimley DA, Anders AM, Bettis EA III, Bates BL, Wang JJ, Butler SK, Huot S. 2017. Using magnetic fly ash to identify post-settlement alluvium and its record of atmospheric pollution, central USA, Anthropocene 17: 84-98.

Krzywicka AE, GE Pociask, DA Grimley, JW Matthews. 2017. Hydrology and soil magnetic susceptibility as predictors of planted tree survival in a restored floodplain forest. Ecological Engineering 103: 275-287.

O’ Brien, SL, Jastrow, JD, Grimley, DA, and Gonzalez-Meler, MA. 2015. Edaphic controls on soil organic carbon stocks in restored grasslands. Geoderma 251-252: 117-123.

Voelker, SL, MC Stambaugh, RP Guyette, X Feng, DA Grimley, SW Leavitt, I Panyushkina, EC Grimm, JP Marsicek, B Shuman, BB Curry. 2015. Deglacial hydroclimate of midcontinental North America, Quaternary Research 83: 336-344.

Pigati JS, McGeehin JP, Muhs DR, Grimley DA, Nekola JC. 2015. Radiocarbon dating loess deposits in the Mississippi Valley using terrestrial gastropod shells (Polygyridae, Helicinidae, and Discidae). Aeolian Research 16: 25-33.

Grimley DA and Oches EA. 2015. Amino acid geochronology of gastropod-bearing Pleistocene units in Illinois, central USA. Quaternary Geochronology 25: 10-25.

Webb ND, Grimley DA, Phillips AC, and BW Fouke. 2012. Origin of glacial ridges (OIS 6) in the Kaskaskia Sublobe, southwestern Illinois, USA. Quaternary Research 78: 341-352.

Grimley DA and Phillips AC, editors. 2011. Ridges, Mounds, and Valleys: Glacial-Interglacial History of the Kaskaskia Basin, Southwestern Illinois, 55th Midwest Friends of the Pleistocene Field Conference, Illinois State Geological Survey Open File Series 2011-1, 144 p.

Grimley, D.A. and A.C. Phillips, 2011, Surficial Geology of St. Clair County, Illinois: Illinois State Geological Survey, Illinois County Geologic Map, ICGM St. Clair County-SG, 2 sheets, 1:62,500.

Curry BB, Grimley DA, and ED McKay III, 2011, Quaternary Glaciations in Illinois. In J. Ehlers, P.L. Gibbard and P.D. Hughes, editors: Developments in Quaternary Science, v. 15, Elsevier, Amsterdam, The Netherlands, pp. 467-487.

Grimley, D.A., 2010, Surficial Geology of Mascoutah Quadrangle, St. Clair County, Illinois: Illinois State Geological Survey, Illinois Geologic Quadrangle Map, IGQ Mascoutah-SG, 2 sheets, 1:24,000; report, 9 p.

Grimley, D.A., Larsen, D., Kaplan, S.W., Yansa. C.H., Curry, B.B., and Oches, E.A. 2009. A multi-proxy palaeoecological and palaeoclimatic record within full glacial lacustrine deposits, western Tennessee, USA. Journal of Quaternary Science 24: 260-981.

Grimley, D.A., Wang, J-S., Liebert, D.A., and Dawson, J.O. 2008. Soil magnetic susceptibility: a quantitative proxy of soil drainage for use in ecological restoration, Restoration Ecology 16: 657-667.

Grimley, D.A., and Arruda, N.K. 2007. Observations of magnetite dissolution in poorly drained soils, Soil Science 172: 968-982.

Treworgy, J.D., Saunders, J.J., and Grimley, D.A., 2007, Mammoth (Mammuthus sp.) excavation on a college campus in Western Illinois, USA, Quaternary International 169-170: 24-28.

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

Curry, B.B. and Grimley, D.A., 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.