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16:31, 19 April 2016 104-Figure 10.jpg (file) 536 KB Illex-gron Figure 10 -- Geochronological units, chronostratigraphic units and diachronic units in the Lake Michigan Lobe in a transect from south of Peoria, Illinois, to north of the Straits of Mackinac in Michigan (geochronologic and chronostratigraphic units ar... 1
16:35, 19 April 2016 104-Figure 11.jpg (file) 362 KB Illex-gron Figure 11 Correlation of the Wedron Group formations and members in the Lake Michigan Lobe area (units in Wisconsin from Mickelson et. al. 1984, Mickelson and Syverson, in press; units in Indiana from Bleuer et al. 1983, N.K. Bleuer, Indiana Geological... 1
16:36, 19 April 2016 104-Figure 12.jpg (file) 1.04 MB Illex-gron Figure 12 -- Intertongued sorted-sediment units of the Mason Group and diamicton units of the Wedron Group at Wedron Quarry pit 1. Mason Group units are shaded. 1
16:37, 19 April 2016 104-Figure 12 Diagram.jpg (file) 593 KB Illex-gron Figure 12 Diagram. 1
16:40, 19 April 2016 104-Figure 13a.jpg (file) 771 KB Illex-gron Figure 13a -- Areal distribution of moraines and boundaries of formations and predominant members of the Wedron Group and the Trafalgar Formation in Illinois. (Names of formations and members are labeled on 13b.) Sublobe areas of the Lake Michigan Lobe... 1
16:42, 19 April 2016 104-Figure 13b.jpg (file) 309 KB Illex-gron Figure 13b -- Names of Wedron Group formations and members in Illinois. 1
16:49, 19 April 2016 104-Figure 14.jpg (file) 746 KB Illex-gron Figure 14 -- The Yorkville and Batestown Members of the Lemont Formation, Delavan Member of the Tiskilwa Formation, Robein Member of the Roxana Silt, and Glasford Formation at Higginsville Section. 1
16:52, 19 April 2016 104-Figure 15.jpg (file) 595 KB Illex-gron Figure 15 - Lower tongues of the Mason Group Henry and Equality Formation (Ashmore and Peddicord, respectively) beneath the Wedron Group Tiskilwa Formation (Delavan Member) at Charleston Quarry. 1
16:54, 19 April 2016 104-Figure 16.jpg (file) 609 KB Illex-gron Figure 16 -- The Morton Tongue of the Peoria Silt beneath the Delavan Member of the Tiskilwa Formation at the Gardena Section. 1
16:56, 19 April 2016 104-Figure 17.jpg (file) 634 KB Illex-gron Figure 17 -- The Ashmore Tongue of the Henry Formation beneath diamictons of the Delavan Member and undivided Tiskilwa Formation at Wedron Quarry pit 6. 1
16:58, 19 April 2016 104-Figure 18.jpg (file) 1.18 MB Illex-gron Figure 18 -- Clayey diamicton of the Wadsworth Formation above oxidized, silty, dolomitic diamicton of the undivided Lemont Formation at the Lemont Section. 1
17:00, 19 April 2016 104-Figure 19.jpg (file) 1.41 MB Illex-gron Figure 19 -- Diamicton (subglacial till) of the Haeger Member of the Lemont Formation overlies the proglacial (ice proximal) sand and gravel of the Beverly Tongue of the Henry Formation at the Beverly Sand and Gravel Pit Section. 1
15:46, 19 April 2016 104-Figure 1 1.jpg (file) 445 KB Illex-gron Figure 1 -- Stratigraphic classification of Pleistocene deposits in Illinois (from Willman and Frye 1970). 1
15:47, 19 April 2016 104-Figure 1 2.jpg (file) 307 KB Illex-gron Soil Stratigraphy 1
15:50, 19 April 2016 104-Figure 2.jpg (file) 261 KB Illex-gron Figure 2 -- Diagram shows the intertonguing relationships among the Mason Group sorted-sediment units (Roxana and Peoria Silts and Henry and Equality Formations) and between the Mason Group sorted-sediment units and the Wedron Group diamicton units. Th... 1
17:01, 19 April 2016 104-Figure 20.jpg (file) 1.34 MB Illex-gron Figure 20 -- Unoxidized, silty, dolomitic diamicton of the undivided Lemont Formation exposed in O'hare reservoir excavation. 1
17:04, 19 April 2016 104-Figure 21.jpg (file) 702 KB Illex-gron Figure 21 -- A gamma B horizon developed in the upper part of a tongue of the Henry Formation, which occurs beneath jointed, calcareous diamicton of the Wadsworth Formation and above diamicton of the Lemont Formation. The gamma B horizon represents an... 1
17:12, 19 April 2016 104-Figure 22.jpg (file) 783 KB Illex-gron Figure 22 -- Sediment-flow diamicton of the undivided Lemont Formation above a coarsening-upward sand and gravel tongue of the Henry Formation. The unnamed tongue is correlative with the Beverly Tongue, which occurs beneath the Haeger Member of the Lem... 1
17:13, 19 April 2016 104-Figure 23.jpg (file) 673 KB Illex-gron Figure 23 -- Silt loam diamicton (subglacial till) of the Batestown member of the Lemont Formation. 1
17:15, 19 April 2016 104-Figure 24.jpg (file) 679 KB Illex-gron Figure 24 -- Silty clay diamicton of the Yorkville Member and silt loam diamicton of the Batestown Member (Lemont Formation) overlie clay loam diamicton of the undivided Tiskliwa Formation at Fox River Stone Quarry, St. Charles, Illinois. The diamicton... 1
17:17, 19 April 2016 104-Figure 25.jpg (file) 638 KB Illex-gron Figure 25 -- Sorted-sediment tongue of the Equality Formation between diamictons of the Batestown Member of the Lemont Formation and the Piatt Member of the Tiskilwa Formation at Wedron Quarry pit 6. 1
17:19, 19 April 2016 104-Figure 26.jpg (file) 1.29 MB Illex-gron Figure 26 -- Modern soil developed in diamicton of the Yorkville Member of the Lemont Formation above a sand and gravel tongue of the Henry Formation at Wedron Quarry pit 1. 1
17:42, 19 April 2016 104-Figure 27.jpg (file) 673 KB Illex-gron Figure 27 -- Upper tongues of the Peoria Silt and Henry Formation above diamictions of the Yorkville and Batestown Members of the Lemont Formation and the undivided Tiskilwa Formation, which overlie the Elwood Dolomite (Silurian) at the Fox River Stone... 1
17:45, 19 April 2016 104-Figure 27 Diagram.jpg (file) 205 KB Illex-gron Figure 27 Diagram 1
17:46, 19 April 2016 104-Figure 28.jpg (file) 1.29 MB Illex-gron Figure 28 -- Silty clay diamicton of the Wadsworth Formation exposed in the Lake Michigan bluffs in Illinois. 1
17:50, 19 April 2016 104-Figure 29.jpg (file) 1,015 KB Illex-gron Figure 29 -- Loess of the Peoria and Roxana Silts above the Sangamon Geosol developed in the Teneriffe Silt (Illinois Episode) at the Pleasant Grove School Section. The modern soil is developed in the upper part of the Peoria Silt. 1
15:52, 19 April 2016 104-Figure 3.jpg (file) 459 KB Illex-gron Figure 3 -- Diagram shows Willman and Frye's (1970) use of arbitrary vertical boundaries to avoid intertonguing of till members with sorted-sediment units in classification of the deposits of the Wisconsinan Stage. 1
17:51, 19 April 2016 104-Figure 30.jpg (file) 801 KB Illex-gron Figure 30 -- Stratified and crossbedded proglacial sand and gravel of the Henry Formation. 1
17:52, 19 April 2016 104-Figure 31.jpg (file) 1.39 MB Illex-gron Figure 31 -- Ripple and planar bedded silt, clay, and fine sand of the Equality Formation. 1
17:54, 19 April 2016 104-Figure 32.jpg (file) 569 KB Illex-gron Figure 32 -- Lacustrine silt of the Pedicord Tongue of the Equality Formation above forest litter (including spruce stumps) of the Farmdale Geosol developed in the Robein Member of the Roxana Silt at Charleston Quarry. 1
15:57, 19 April 2016 104-Figure 4a.jpg (file) 271 KB Illex-gron Figure 4a -- Lobe and sublobe boundaries in Illinois during the last glaciation (from Willman and Frye 1970). Locations of the ancient Mississippi and Iowa Rivers added. 1
16:10, 19 April 2016 104-Figure 4b.jpg (file) 464 KB Illex-gron Figure 4b -- Areal distribution of predominant Quaternary formations and members in Illinois (from Willman and Frye 1970). 1
16:12, 19 April 2016 104-Figure 5.jpg (file) 357 KB Illex-gron Figure 5 -- Areal distribution of the Wedron Formation till members and the Trafalgar Formation )after Lineback 1979). 1
16:17, 19 April 2016 104-Figure 6.jpg (file) 418 KB Illex-gron Figure 6 -- Diagram shows boundaries and classification of formal units (groups, formations, members) and tongues and informal facies within two intertonguing groups consisting predominantly of diamicton and sorted sediment. Formation A is a lithostrat... 1
16:21, 19 April 2016 104-Figure 7.jpg (file) 336 KB Illex-gron Figure 7 -- History of lithostratigraphic classification of the Wedron Group deposits. 1
16:22, 19 April 2016 104-Figure 8.jpg (file) 475 KB Illex-gron Lobe boundaries. 1
16:24, 19 April 2016 104-Figure 9.jpg (file) 345 KB Illex-gron Figure 9 -- History of the litho-stratigraphic classification of the Mason Group deposits with respect to the Wedron Group deposits: (a) Peoria and Roxana Silts, (b) Henry Formation, and (c) Equality Formation. Vertical lines indicate part of section m... 1
17:55, 19 April 2016 104-plate 1.jpg (file) 733 KB Illex-gron Quaternary Deposits of Illinois 1
17:59, 13 April 2016 94-Fig 1.jpg (file) 538 KB Illex-gron Fig. 1 -- Stratigraphic classification of the Pleistocene deposits of Illinois. 1
16:40, 18 April 2016 94-fig 10.jpg (file) 673 KB Illex-gron Fig. 10 -- Generalized map of floodplains of modern rivers and streams of Illinois. Principal areas of Cahokia Alluvium. 1
16:41, 18 April 2016 94-fig 11.jpg (file) 309 KB Illex-gron Fig. 11 -- Major areas of wind-blown sand in Illinois. Principal areas of Parkland Sand. 1
16:42, 18 April 2016 94-fig 12.jpg (file) 290 KB Illex-gron Fig. 12 -- Woodfordian lobes and sublobes in Illinois. 1
16:44, 18 April 2016 94-fig 13.jpg (file) 431 KB Illex-gron Fig. 13 -- Major steps in development of the stratigraphic classification of the Wisconsinan deposits of Illinois (after Frye and Willman, 1963). 1
16:45, 18 April 2016 94-fig 14.jpg (file) 398 KB Illex-gron Fig. 14 -- Time-space diagram showing glacial deposits, soils, and stratigraphically significant radio-carbon dates in the Wisconsinan and Holocene Stages in Illinois. 1
16:15, 18 April 2016 94-fig 2.jpg (file) 893 KB Illex-gron Fig. 2 -- Generalized areal geology of the bedrock surface of Illinois. (see Willman et at., 1967, for more detailed mapping). 1
16:19, 18 April 2016 94-fig 3.jpg (file) 876 KB Illex-gron Fig. 3 -- Thickness of Pleistocene deposits of Illinois (after Piskin and Bergstrom, 1967). 1
16:21, 18 April 2016 94-fig 4.jpg (file) 858 KB Illex-gron Fig. 4 -- Topography of the bedrock surface of Illinois (after Horberg, 1950, and others). 1
16:26, 18 April 2016 94-fig 5.jpg (file) 399 KB Illex-gron Fig. 5 -- Sequence of glaciations and interglacial drainage in Illinois. 1
16:28, 18 April 2016 94-fig 6.jpg (file) 665 KB Illex-gron Fig. 6 -- Areal distribution of the dominantly till formations and members of Illinois. 1
16:30, 18 April 2016 94-fig 7.jpg (file) 567 KB Illex-gron Fig. 7 -- Diagrammatic cross section showing the relations of formations and members of Illinoian age in western Illinois. 1
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