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Associate Quaternary Geologist
Quaternary and Engineering Geology
217-333-2830 (Fax)


Ph.D., University of Illinois at Chicago, 1993
M.S., University of Illinois at Chicago, 1989
B.A., Colgate University, 1981

Research Interests:

Sedimentary processes in rivers and lakes Genesis of drift ridges in southwestern Illinois Application of remote sensing and shallow geophysical data to surficial mapping Evolution of Quaternary landscapes Lidar map construction and interpretation Current Research Projects: Developing algorithms and methods for regional lidar-based landform classification Geologic framework of the lower Wabash Valley: Provenance, slackwater lakes, big floods, meandering rivers Geologic mapping of Quaternary deposits in southern Illinois Origin of glacial ridges on the Illinois Till Plain Landscape response to changing land use in Middle Illinois Valley Tributaries

Selected Publications:

Grimley, D.A., A.C. Phillips, E.D. McKay III, and A.M. Anders, in press, Geomorphic expression of the Illinois Episode glaciation (OIS 6) in Illinois: moraines, sublobes, subglacial lineations, and possible ice streaming: in A. Kehew and B.B. Curry (eds.), Quaternary Glaciation of the Great Lakes Region, Geological Society of America Special Paper.

Grimley, D.A. and A.C. Phillips, 2015, Ridges, mounds, and valleys: Glacial-interglacial history of the Kaskaskia Basin, southwestern Illinois: 55th Midwest Friends of the Pleistocene 2011 Field Conference, Illinois State Geological Survey, Guidebook 41, 124 p.
Larson, T.H., A.C. Phillips, and S. Elrick, 2015, The Meadow Bank: A non-tectonic linear feature in the Wabash Valley Seismic Zone: Seismological Research Letters, v. 86, p. 1730-1736, doi: 10.1785/0220150063.
Dey, W. S., S.D. Elrick, C.P. Korose, D.A. Grimley, A.C. Phillips, and E. Colville, 2012, Appendix B: Geological description of continuous core: in Dey, W.S., R.A. Locke, I.G. Krapac, C.G. Patterson, and J.L. Hurry, Preliminary Hydrogeologic Investigation of the FutureGen 2 in Morgan County, Illinois, Open File Series 2012-6, Illinois State Geological Survey, 61 p.
Ismail, A., E. Smith, A. Phillips, and A. Stumpf, 2012, Pitfalls in interpretation of shallow seismic data: Applied Geophysics, v. 9, p. 87 – 94, doi:10.1007/s11770-012-0318-4.
Webb, N.D., D.A. Grimley, A.C. Phillips, B.W. Fouke, 2012. Origin of glacial ridges (OIS 6) in the Kaskaskia Sublobe, southwestern Illinois, USA. Quaternary Research, v. 78, 341-352.
White, W.P., A.C. Phillips, and D. Devotta, 2009, Watershed Assessment: Illinois Department of Natural Resources, Outdoor Illinois, Springfield, p. 21-30.
Phillips, A.C., and S. Brown, 2009, An Overview of Illinois’ Geological History and Landscape: in J.B. Taft, C.E. Warwick, and C.A. Taylor (eds.), Canaries in the Catbird Seat, Illinois Natural History Survey, Champaign, p. 7-23.
White, W.P., A.C. Phillips, and J. Beardsley, 2007, Senachwine Creek Watershed Assessment: A Framework for Project Identification and Restoration of Watersheds in the Illinois River Basin: World Environmental & Water Resources Congress 2007, EWRC-ASCE, Tampa, Fla.
Phillips, A.C., Pociask, G., and Smith, L.R., 2006, Aerial Imagery for Watershed Assessment: Illinois Water 2006, Urbana, Illinois
Grimley, D.A., and A.C. Phillips, 2006, New Insights on Possible Origins of the "Ridged Drift" in Southwestern Illinois: GSA Abstracts with Programs Vol. 38, No. 7.
Stumpf, A.J., A.C. Phillips, G.E. Pociask, L.R. Smith, and W.P. White, 2006, Mass Wasting and its Control on Channel Behavior and Valley Formation in the Partridge Creek Watershed, Illinois River Valley, Illinois: Mass Wasting in Disturbed Watersheds, AEG Shlemon Specialty Conference, Durango, CO, May 3-5, 2006 (
Phillips, A.C., A. Pugin, D.A. Grimley, and T.A. Larson, 2005, Anatomy of Drift Ridges Revealed by Shallow Seismic Shear Wave Profiling: AGU Fall Meeting, San Francisco, Paper Number U23C-02.
Smith, E.C., D.A. Grimley, A.C. Phillips, and R. Vaiden, 2005, Unconsolidated aquifers of the Metro East region: Madison, St. Clair, and Monroe Counties, Illinois: Midwest Groundwater 2005, Champaign, Nov 1-3, 2005.
Phillips, A.C., 2005, Surficial Geology of Highland Quadrangle, Madison, St. Clair, and Clinton Counties: Illinois State Geological Survey, Illinois Preliminary Geologic Map, IPGM Highland-SG, 1:24,000.
Phillips, A.C., M.V.M. Miller, G.E. Pociask, L.R. Smith, and J.J. Miner. 2004. Long Term Geomorphic Monitoring Plan and Watershed Assessment Protocols for the Illinois River Basin: in M. Pegg (ed.), Watershed Assessment Protocol and Long Term Resource Monitoring Plan: U.S. Army Corps of Engineers, Rock Island District, Contract Report DACW25-02-0383, 158 p.
Phillips, A.C., 2004, Surficial Geology of St. Jacob Quadrangle, Madison and St. Clair Counties: Illinois State Geological Survey, Illinois Preliminary Geologic Map, IPGM St. Jacob-SG, 1:24,000.
Phillips, A.C., and D.A. Grimley, 2004, Surficial Geology of Marine Quadrangle, Madison County: Illinois State Geological Survey, Illinois Preliminary Geologic Map, IPGM Marine-SG, 1:24,000.
Phillips, A.C., 2004, Surficial geology of the Collinsville quadrangle: Illinois State Geological Survey, Illinois Preliminary Geologic Map, IPGM Collinsville-SG, 1:24,000.
Stumpf, A.J. and A.C. Phillips, 2003, Mapping of America's Heartland: the status of quadrangle-scale geologic mapping at the Illinois State Geological Survey: Canadian Quaternary Association-Canadian Geomophological Research Group 2003, Annual Meeting, Program and Abstracts, p. A115.
Phillips, A.C., B.L., Rhoads, T.J., McTighe, and C. Klaus, 2002, Stream dynamics assessment, Illinois River basin: Contract Report DACW25-98-D-0017, United States Army Corps of Engineers, Rock Island, IL, 65 p., 7 tab., 46 fig.
Phillips, A.C., B.L., Rhoads, T.J., McTighe, and C. Klaus, 2002, Photoanalytic assessment of dynamics in tributary streams of the Illinois River basin: Geological Society of America, 36th Annual Meeting of the North-Central Section, Lexington, Kentucky, April 2002, Abstracts with Programs, v. 34, no. 2, p. A32.
Pugin, A.J.M, T.H. Larson, and A.C. Phillips, 2002, Shallow high-resolution shear-wave seismic reflection acquisition using a land-streamer in the Mississippi River flood plain: Potential for engineering and hydrogeologic applications: Symposium on the application of geophysics to environmental and engineering problems, February 10-14, 2002, Las Vegas, Nevada, Proceedings, p. 3-12.
Phillips, A.C., and W.W. Shilts, 2001, Geological history of the Illinois River Watershed: Governor's Conference on the Managment of the Illinois River System, Proceedings, Peoria, Illinois, Oct. 2001, p. 25-34.
Phillips, A.C., C. Abert, and A. Pugin, 2001, Mapping the American Bottoms Region of the Mississippi River: New insights from high-resolution seismic reflection tests using shear waves and 3-D modeling: Fluvial Sedimentology 2001, Proceedings, 7th International Conference on Fluvial Sedimentology, August 2001, Lincoln, Nebraska, p. 226.
Grimley, D.A., A.C. Phillips, L.R. Follmer, H. Wang, and R.S. Nelson, 2001, Quaternary and environmental geology of the lower Illinois River valley and metro-East St. Louis area: Guidebook for Field Trips for the Thirty-fifth Annual Meeting of the North-Central Section of the Geological Society of America: Illinois State Geological Survey, ISGS Guidebook 33, p. 21-73.
Hansel, A.K., R.C. Berg, A.C. Phillips, and V.G. Gutowski, 1999, Glacial sediments, landforms, paleosols, and a 20,000-year-old forest bed in east-central Illinois: Illinois State Geological Survey Guidebook 26, Geological Society of America, 33rd Annual Meeting of the North-Central Section, Champaign, Illinois, 31 p.
Menon, M.G., R.J. Gibbs, and A.C. Phillips, 1998, Accumulation of muds and metals in the Hudson River estuary turbidity maximum: Environmental Geology, v. 34, no. 2/3, p. 214-222.
Phillips, A.C., and N.D. Smith, 1992, Delta slope processes and turbidity currents in prodeltaic submarine channels, Queen Inlet, Glacier Bay, Alaska: Canadian Journal of Earth Sciences, v. 29. p.93-101.
Phillips, A.C., N.D. Smith, and R.D. Powell, 1991, Laminated Sediments in prodeltaic deposits, Glacier Bay, Alaska, in J.B. Anderson and G.M. Ashley (eds.), Glacial-marine sedimentation: Paleoclimatic significance: Geological Society of America, Special Paper 261, p. 51-60.