Deglacial History and Paleoenvironments of Northeastern Illinois

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WINNEBAGOOGLEMarengo MoraineWoodstock M.BOONE MCHENRY LAKEDEKALBKANEBarlina M.Fox Lake M.98COOKLakeMichiganLakeBorderMoraines7DUPAGEBloomingtonMorainic SystemBUREAUPUTNAMLEELASALLEBurlingtonMoraineArlington MoraineFarm Ridge Moraine12Elburn ComplexMarseilles Morainic SystemKENDALLGRUNDYlunchMinooka Moraine6St. Charles M.435WILLRockdale MoraineKANKAKEEValparaiso Morainic SystemDeerfield MorainePark Ridge MoraineTinley MoraineFigure 1 Moraines and morainic complexes of the last glaciation in northeastern Illinois, highlighting thestudy area and field trip route.The glacial succession at Fermi National Laboratory, Batavia, Illinois, was among the first to beshown to be comprised of sediment layers with unique physical properties that may be tracedin 3 dimensions (Landon and Kempton, 1971). Particle-size distribution, moisture content, andAtterberg Limit data from this study’s cores provided validation that a well-characterized stratigraphicframework was necessary for meaningful future applied studies (Kempton, 1981; Graeseet al., 1988; Berg et al., 1999).For deposits of the last glaciation in northeastern Illinois, the current stratigraphic framework is areclassification by Hansel and Johnson (1996) of the independent multiple classification systemof Willman and Frye (1970). Included among the former’s most important features and contributions:1) Stratigraphic upgrades and revisions (i.e., Wedron Formation = Wedron Group; TiskilwaTill Member = Tiskilwa Formation, Wadsworth Till Member = Wadsworth Formation, and2
LakeMichiganWINNEBAGOBOONE MCHENRY LAKEOGLEDEKALBKANECOOKDe KalbDUPAGELEEKENDALLWILLDes PlainesRiverChicagoBUREAULASALLEFoxRiverGRUNDYIllinoisRiverKankakeePUTNAMRiverKANKAKEEFigure 2 Painted relief map of northeastern Illinois; modified from Luman et al. (2003)establishment of the Lemont Formation, comprised of the Batestown, Yorkville, and HaegerMembers).2) Definition of the Mason Group, comprised of units of sorted sediment that in many placesinterfinger (tongue) with units of the Wedron Group.3) The replacement of chronostratigraphic (time) units with diachronic units based on thelithostratigraphic reclassification outlined above (Hansel and Johnson, 1992; Hansel et al.,1997).4) Abolishment of the genetic terms “till” and “loess” in the names of stratigraphic units.5) Organization of pertinent radiocarbon ages by stratigraphic unit and location. Many ageswere previously unpublished or in the “gray literature”.3
Page 1 and 2: State of IllinoisRod. R. Blagojevic
Page 3: Deglacial History and Paleoenvironm
Page 6 and 7: AcknowledgementsBrandon is grateful
Page 10 and 11: Figure 3 Projected growth areas in
Page 12 and 13: Surficial fine-textured layerTiskil
Page 14 and 15: samples, especially diamict units.
Page 16 and 17: OaOgSuWINNEBAGOOgBOONE MCHENRY LAKE
Page 18 and 19: Bedrock valley floor changes in Kan
Page 20 and 21: illite peak (8.8°2) with thecompou
Page 22 and 23: Grayslake Peat (gr)Peoria Silt (not
Page 24 and 25: DEPOSITS OF THE LAST GLACIATIONMaso
Page 26 and 27: WisconsinCheck here ifH homestead c
Page 28 and 29: Table 1 Summary of particle size of
Page 30 and 31: Table 2 Selected physical propertie
Page 32 and 33: l-h0 counts per second50Diamicton,b
Page 34 and 35: Geochronologicand Chronostratigraph
Page 36 and 37: Wisconsin EpisodeAthens Subepisode
Page 38 and 39: MarengoPhaseMarengo MoraineHarvardS
Page 40: Three erosional channels cut across
Page 43 and 44: Boring WAD-05-02Tinley Moraine*DesP
Page 45 and 46: Figure 30 Glacial and lake phases a
Page 47 and 48: were not intended to overlap (North
Page 49: West Chicago Moraine,9c Higgins/Sut
Page 52 and 53: Benn D.I., 2002, Clast fabric devel
Page 54 and 55: Curry, B.B. 2003. Linking Ostracode
Page 56 and 57: Eyles, N. 1983. Glacial Geology: An
Page 58 and 59:
Hajic, E.R., 1990. Late Pleistocene
Page 60 and 61:
Johnson, W. H., A. K. Hansel, E. A.
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Leighton, M.M., P. MacClintock, L.E
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Piskin, K., and R. E. Bergstrom, 19
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Vagt, P. J., 1987. Characterization
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STOP 1: Buffalo Rock State ParkLarg
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ner channel began. Previously, thes
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Figure 3 (A) Example of outer erosi
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Stop 2a: Wedron Silica Company Quar
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N N N0.0W20.5W1W3Depth (m)1.01.5Rin
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0.00.2W3W2W1W1W3W2Ringshearresult0.
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to the arrival of the last glaciers
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Sedimentology and stratigraphyThe c
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prairie-like. Pollen analyses may b
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CarboniferousFigure 1 Carboniferous
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Figure 3 Largest and best preserved
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Figure 6 Small normal faults in lam
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and mineralogy, we propose that the
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Stop 4: Oswego ChannelThe 15,770 C-
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NewarkMarseillesIroquoisSt. AnneOsw
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Joliet sublobe;retreat to theValpar
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Sediment coresSeveral sediment core
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formed during the late Livingston P
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are being examined by Professor L.
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assistant secretary of the Smithson
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Annotated Illustrated Guide to the
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Figure 4 The BrewsterCreek mastodon
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Figure 6 The left lower 3rd molar o
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Figure 8 The left upper 3rd molar o
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Figure 10 This slide elaborates on
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Aurora Mastodont Project 2004 - A s
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a full skeleton still buried. Ed Mo
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Figure 17 Field leader Anita Weber
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Figure 18 Paleontologist For A Day
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paleontologist/geologist/archeologi
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scientific rationale behind the see
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tures exposed, from well drained in
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N1 km1 miAA’lbgphhwheA1380 lbFelt
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Table 1 Soil horizonation and depth
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Figure 5 Morphological measure of t
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vial upper solum characteristics, d
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material indicates long term disper
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(Table 1). Sand and silt values oft
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STOP 7: DeKalb moundsArchives of de
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acA A ‘*"e H-2278bde(x)1 kmFigure
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1 kmFigure 4 Typical distribution a
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Vertical exaggeration =20x5 mB-9AWe
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Valve concentration(#/gm, moist)0.0
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200-8Value (‰)-6 -4 -2 0 2 0.00 0
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sions encompass the period of final
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Stop 8: Spring Lake Sand and Gravel
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Stratigraphy and Mechanical Stratig
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ABCDEFFigure 3 Characteristic defor
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a.b.C90 mC'WED85 mD'c.D200 mD'NSd.D
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a.b.c.d. e.LHudSTATION E1 E2 E3LHld
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In the weaker units, several charac
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Stop 9: Thelen Sand and Gravel Pits
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Table 1 Lithofacies code for fluvia
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The erosion of the large semi-circu
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Topset sequences are composed of bo
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APPENDIX A. Description of Profile
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pinches out laterally.4 879.6 10.5
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Deglacial History and Paleoenvironments of Northeastern Illinois

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