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17:16, 18 April 2016 94-tb 6-b.jpg (file) 561 KB Illex-gron   1
17:15, 18 April 2016 94-tb 6-a.jpg (file) 546 KB Illex-gron Table 6 -- Stratigraphic Sections 1
17:13, 18 April 2016 94-tb 5-e.jpg (file) 449 KB Illex-gron Table 5 -- Continued. 1
17:12, 18 April 2016 94-tb 5-d.jpg (file) 414 KB Illex-gron Table 5 -- Continued. 1
17:11, 18 April 2016 94-tb 5-c.jpg (file) 414 KB Illex-gron Table 5 -- Continued. 1
17:11, 18 April 2016 94-tb 5-b.jpg (file) 404 KB Illex-gron Table 5 - Continued. 1
17:10, 18 April 2016 94-tb 5-a.jpg (file) 410 KB Illex-gron Table 5 -- Selected Analyses from Stratigraphic Sections Described in Table 6 (X-ray analyses by H. D. Glass, Illinois State Geological Survey). 1
17:01, 18 April 2016 94-tb 5-.jpg (file) 358 KB Illex-gron Table 5 -- Continued. 1
16:59, 18 April 2016 94-tb 4.jpg (file) 452 KB Illex-gron Table 4 -- Averages of Analyses of Selected Heavy and Light Minerals (Analyses of size fraction 0.062-0.250 mm). (From Frye, Glass, and Willman, 1962; Frye, Willman, and Glass, 1964; Willman, Glass, and Frye, 1963) 1
16:57, 18 April 2016 94-tb 3.jpg (file) 516 KB Illex-gron Table 3 -- Composition of Wedron Formation (X-ray analyses by H. D. Glass, Illinois State Geological Survey). 1
16:55, 18 April 2016 94-tb 2.jpg (file) 508 KB Illex-gron Table 2 -- Typical Compositions of Glacial Till Units. 1
16:54, 18 April 2016 94-tb 1.jpg (file) 657 KB Illex-gron Table 1 -- Selected Stratigraphically Significant Radiocarbon Dates From Illinois (94 dates from 30 counties). 1
16:52, 18 April 2016 94-pl 3.jpg (file) 587 KB Illex-gron Bull. 94 - pl. 3 1
16:48, 18 April 2016 94-pl 2.jpg (file) 611 KB Illex-gron Bull. 94 - pl. 2 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
16:44, 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
16:42, 18 April 2016 94-fig 12.jpg (file) 290 KB Illex-gron Fig. 12 -- Woodfordian lobes and sublobes in Illinois. 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
16:40, 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
16:38, 18 April 2016 94-fig 9.jpg (file) 438 KB Illex-gron Fig. 9 -- Glacial lakes of Illinois. These are the principal areas of the Equality Formation, with the exception of Lake McKee and possibly Lake Brussels. Areas of lakes overridden by glaciers are not shown. 1
16:32, 18 April 2016 94-fig 8.jpg (file) 575 KB Illex-gron Fig. 8 -- Diagrammatic cross section showing the relations of formations and members of Wisconsinan age in northern and western 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
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
16:26, 18 April 2016 94-fig 5.jpg (file) 399 KB Illex-gron Fig. 5 -- Sequence of glaciations and interglacial drainage in Illinois. 1
16:21, 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
16:19, 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
16:15, 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
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
16:24, 5 April 2016 Figure Q-1C.jpg (file) 707 KB Alan.Myers Fig. Q-1C -- Wisconsinan Peoria Loess (P) overlying the Roxana Silt (Rm-Meadow Loess Member, Rmc-McDonough Loess Member) and the Illinoian Teneriffe Silt (T) in the Pleasant Grove School Section in the Mississippi River bluffs northwest of Collinsville... 2
16:12, 5 April 2016 Figure Q-1B.jpg (file) 1.11 MB Alan.Myers Fig. Q-1B -- The Wisconsinan Wedron (W-interbedded till and outwash) and Peddicord (P-lake sediments) Formations overlying till of the Illinoian Glasford Formation in the Wedron Silica Company pit at Wedron, LaSalle County-the type sections of the Wedr... 2
16:02, 5 April 2016 Figure Q-1A.jpg (file) 735 KB Alan.Myers Fig. Q-1A -- Wisconsinan Richland Loess (R), Delavan Till Member of the Wedron Formation (Wd), Morton Loess(M), Robein and Roxana Silts (RR), and the Sangamon Soil (S) on till of the Illinoian Glasford Formation(C); in a railroad cut a mile east of Far... 2
13:22, 5 April 2016 Figure S-2F.jpg (file) 1.19 MB Alan.Myers Fig. S-2F -- Dense, argillaceous dolomite containing chert nodules characteristic of Racine interreef facies in the Chicago area. The outer, porous parts of the nodules are blackened by air pollutants. 1
13:16, 5 April 2016 Figure S-2E.jpg (file) 1.26 MB Alan.Myers Fig. S-2E -- Mottled, porous, pure dolomite characteristic of Racine reef facies in the Chicago area (x 1). 1
13:16, 5 April 2016 Figure S-2D.jpg (file) 1.46 MB Alan.Myers Fig. S-2D -- Massive Tete des Morts Formation overlying the Mosalem Formation at the top of Silurian escarpment, 4 miles southeast of Galena, Jo Daviess County. 1
13:15, 5 April 2016 Figure S-2C.jpg (file) 1.38 MB Alan.Myers Fig. S-2C -- Massive Marcus Dolomite in a quarry 3 miles east of Fulton, Whiteside County. 1
13:14, 5 April 2016 Figure S-2B.jpg (file) 1.29 MB Alan.Myers Fig. S-2B -- Steeply dipping, well bedded dolomite forming the fiank of a Racine (Niagaran) reef, in the Material Service Corporation quarry at Thornton, Cook County. 1
13:14, 5 April 2016 Figure S-2A.jpg (file) 1.33 MB Alan.Myers Fig. S-2A -- Massive dolomite in the core of a Racine (Niagaran) reef, at the top of the Material Service Corporation (Stearns) quarry on Archer Avenue at 28th Street, Chicago. 1
13:12, 5 April 2016 Figure Q-1F.jpg (file) 1.13 MB Alan.Myers Fig. Q-1F -- Harkness Silt Member of the ~ansan Banner Formation (Bh) overlying the Afton Soil developed on gravel of the Nebraskan Enion Formation (AE); in a roadcut at the Zion Church, 2 miles southeast of Marblehead, Adams County (Willman and Frye,... 1
13:11, 5 April 2016 Figure Q-1E.jpg (file) 1.16 MB Alan.Myers Fig. Q-1E -- Wisconsinan Roxana Silt (R), Sangamon Soil developed in the Illinoian Loveland Silt (SL) and Yarmouth Soil developed in till of the Kansan Banner Formation (YB); in a roadcut at Independence, 5 miles south of Pittsfield, Pike County (Frye... 1
13:10, 5 April 2016 Figure Q-1D.jpg (file) 1.16 MB Alan.Myers Fig. Q-1D -- Illinoian Glasford Formation (Hagarstown Member) showing steeply dipping sand and gravel (crevasse deposit) in a mound in the Kaskaskia Ridged Drift area, 2 miles southwest of Lakewood, Shelby County. 1
20:22, 4 April 2016 Figure O-2F.jpg (file) 601 KB Alan.Myers Fig. O-2F -- Thin-bedded dolomite of the Quimbys Mill Formation overlying massive dolomite of the Nachusa Formation in a quarry on River Street in Dixon, Lee County. 1
20:21, 4 April 2016 Figure O-2E.jpg (file) 585 KB Alan.Myers Fig. O-2E -- Massice Oneota Dolomite containing a large algal growth; in a quarry in Lee County, 6 Miles south of Rochelle, Ogle County. 1
20:19, 4 April 2016 Figure O-2D.jpg (file) 647 KB Alan.Myers Fig. O-2D -- Relatively thin-bedded Platteville Limestone Group showing the Nashusa (N), Grand Detour (GD), and Mifflin (M) Formations overlying the thick-bedded Joachim Dolomite (J) in a quarry at West Point Landing, Calhoun County (Templeton and Will... 1
20:17, 4 April 2016 Figure O-2C.jpg (file) 669 KB Alan.Myers Fig. O-2C -- Massive Wise Lake Formation overlying the thinner bedded Dunleith Formation, which contains lenses and beds of white chert, in a quarry on the south side of Freeport, Stephenson County. 1
20:14, 4 April 2016 Figure O-2B.jpg (file) 719 KB Alan.Myers Fig. O-2B -- Type section of Dunleith Formation showing the Mortime (Mo), Rivoli (Ri), Sherwood (Sh), Wall (Wa) and Wyota (Wy) Members overlain by the Sinsinawa Member (Si) of the Wise Lake Formation at East Dubuque, Jo Daviess County (Templeton and Wi... 1
18:55, 4 April 2016 Figure M-1F.jpg (file) 1.03 MB Alan.Myers Fig. M-1F -- Grannular texture of the Ullin Limestone along Mill Creek, south of Anna, Union County (x1). 1
18:54, 4 April 2016 Figure M-1E.jpg (file) 521 KB Alan.Myers Fig. M-1E -- Oolitic texture of the Ste. Genevieve Limestone at Anna, Union County (x10). 1
18:52, 4 April 2016 Figure M-1D.jpg (file) 1.02 MB Alan.Myers Fig. M-1D -- Well bedded St. Louis Limestone with cave in its base overlying massive Salem Limestone in Mississippi River bluff a mile northwest of Prairie du Rocher, Randolph County. 1
18:50, 4 April 2016 Figure M-1C.jpg (file) 902 KB Alan.Myers Fig. M-1C -- Kinkaid Limestone showing clay-filled solution cavity in the Goreville Member at the top overlying a layer of shale with red bed (black) at the tope of the Cave Hill Member; in Southern Illinois Limestone Company quarry north of Buncombe,... 1
18:46, 4 April 2016 Figure M-1B.jpg (file) 653 KB Alan.Myers Fig. M-1B -- Massive Ste. GEnevieve Limestone overlying well bedded St. Louis Limestone in Mississippi River bluff (about 60 feet high) on northwest side of Alton, Madison County. 1
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