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Below is a list of the most recent file uploads. See the gallery of new files for a more visual overview.
(newest | oldest) View (newer 50 | older 50) (20 | 50 | 100 | 250 | 500)- 19:41, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure C-2.jpg (Fig. C-2 --Thickness of the Cambrian System. The dashed lines show reconstructed thickness.)
- 19:40, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure 17.jpg (Fig. 17 -- Patterns and symbols used in figures.)
- 19:39, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure 16.jpg (Fig. 16 -- Development of the stratigraphic classifications used in Illinois. The references include reports that introduced changes in the classification and others that show typical usage.)
- 19:38, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure 15.jpg (Fig. 15 -- Topography of the bedrock surface of Illinois (after Horberg, 1950a and Willman and Frye, 1970).)
- 19:36, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure 14.jpg (Fig. 14 -- Pre-Pennsylvanian megagroups and sequences of Illinois (Swann and Willman, 1961).)
- 19:35, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure 13.jpg (Fig. 13 -- Geologic cross section along the lines shown in figure 12 (after Willman er al., 1967).)
- 15:57, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure 11.jpg (Fig. 11 -- Generalized surficial geology of Illinois. In uneroded areas the loess thins from 25-100 feet thick in the bluffs of the major valleys to 1-2 feet in areas farthest from valleys.)
- 15:54, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure 9.jpg (Fig. 9 -- Index map showing counties and townships.)
- 15:53, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure 8.jpg (Fig. 8 -- Topography and rivers of Illinois.)
- 15:52, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure 7.jpg (Fig. 7 -- Physiographic divisions of Illinois (after Leighton et al., 1948).)
- 15:51, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure 6.jpg (Fig. 6 -- Geologic map of Illinois by Stuart Weller (1907).)
- 15:50, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure 5.jpg (Fig. 5 -- Geologic map of Illinois by A. H. Worthen (1875).)
- 15:49, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure 4.jpg (Fig. 4 -- Index to volumes issued by the Geological Survey of Illinois (Worthen Survey) in which individual counties are described.)
- 15:46, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure 3.jpg (Fig. 3 -- Geologic map of Illinois by James Hall (1843).)
- 15:42, 1 April 2016 Illex-gron talk contribs uploaded File:Figure P-16.jpg (Fig. P-16 -- Thickness of the Mattoon Formation (based on map by K. E. Clegg).)
- 15:41, 1 April 2016 Illex-gron talk contribs uploaded File:Figure P-15.jpg (Fig. P-15 -- Thickness of the Bond Formation (based on map by K. E. Clegg).)
- 15:39, 1 April 2016 Illex-gron talk contribs uploaded File:Figure P-14.jpg (Fig. P-14 -- Thickness of the Modesto Formation (based on map by K. E. Clegg).)
- 15:38, 1 April 2016 Illex-gron talk contribs uploaded File:Figure P-10.jpg (Fig. P-10 -- Combined thickness of the Caseyville, Abbott, and Spoon Formations (after Walness, 1955))
- 15:36, 1 April 2016 Illex-gron talk contribs uploaded File:Figure P-8.jpg (Fig. P-8 -- Structure of the top of the Herrin (No. 6) Coal Member (based on map by K. E. Clegg).)
- 15:31, 1 April 2016 Illex-gron talk contribs uploaded File:Figure P-7.jpg (Fig. P-7 -- Arrangement of lithologic units in a cyclothem (after Willman and Payne, 1942).)
- 15:27, 1 April 2016 Illex-gron talk contribs uploaded File:Figure P-1.jpg (Fig. P-1 -- Thickness of the Pennsylvanian System.)
- 15:09, 1 April 2016 Illex-gron talk contribs uploaded a new version of File:Figure P-2.jpg (Reverted to version as of 14:45, 5 August 2015)
- 15:08, 1 April 2016 Illex-gron talk contribs uploaded a new version of File:Figure P-2.jpg (Classification of the Pennsylvanian System. In the graphic column, blank space indicates gray shale. Named members are listed to the right of the graphic column.)
- 14:55, 1 April 2016 Illex-gron talk contribs uploaded File:Figure P-9.jpg (Fig. P-4 -- Extent of the Caseyville Formation (after Wanless, 1955).)
- 14:50, 1 April 2016 Illex-gron talk contribs uploaded a new version of File:Figure P-3A.jpg (Fig. P-3A -- Battery Rock Sandstone Member of the Caseyville Formation capping an escarpment 8 miles north of Cave in Rock, Hardin County.)
- 14:29, 1 April 2016 Illex-gron talk contribs uploaded File:Figure 12.jpg (Fig. 12 -- Principal geologic structures of Illinois.)
- 16:31, 31 March 2016 Alan.Myers talk contribs uploaded File:Figure O-2A.jpg (Fig. O-2 A -- St. Peter Sandstone in Starved Rock along the Illinois River in Starved Rock State Park, 4 miles south-east of La Salle, La Salle County.)
- 16:24, 31 March 2016 Alan.Myers talk contribs uploaded File:Figure 1.jpg (Fig. 1 -- Summary of the age, origin, and thickness of Illinois rocks.)
- 15:52, 26 March 2016 Jennifer.Obrad talk contribs uploaded a new version of File:Main page time.jpg
- 15:52, 26 March 2016 Jennifer.Obrad talk contribs uploaded a new version of File:Main page time.jpg
- 15:52, 26 March 2016 Jennifer.Obrad talk contribs uploaded a new version of File:Main page time.jpg
- 20:09, 25 March 2016 Jennifer.Obrad talk contribs uploaded a new version of File:Main page time.jpg
- 20:01, 25 March 2016 Jennifer.Obrad talk contribs uploaded File:Main page strat.jpg
- 23:20, 8 March 2016 Jennifer.Obrad talk contribs uploaded a new version of File:Penn carb fig2.jpg
- 19:15, 8 March 2016 Jennifer.Obrad talk contribs uploaded File:Penn carb fig65.jpg ("Blue band" at Francisco Mine portal where Herrin Coal is reduced to streaks)
- 19:14, 8 March 2016 Jennifer.Obrad talk contribs uploaded File:Penn carb fig64.jpg (Photograph of hand speciman of "Blue band")
- 19:07, 8 March 2016 Jennifer.Obrad talk contribs uploaded File:Penn carb fig63.jpg (Graphic Log of part of continuous core from Madison Coal Corp. borehole #25 in Williamson County. Reference section for Herrin Coal.)
- 17:06, 8 March 2016 Jennifer.Obrad talk contribs uploaded File:Penn carb fig3.jpg (Correlation chart. Primary sources: Peppers (1996), Hickel (2013). No Scale)
- 17:02, 8 March 2016 Jennifer.Obrad talk contribs uploaded File:Penn carb fig2.jpg (Thickness of the Carbondale Formation (based on map by K. E. Clegg))
- 16:57, 8 March 2016 Jennifer.Obrad talk contribs uploaded File:Penn carb fig1.jpg (Chart Showing the Development of the Stratigraphic Classification of the Pennsylvanian System in the Illinois Basin. Compiled by the Tri-State Committee on Correlation of the Pennsylvanian System in the Illinois Basion, 2001.)
- 16:54, 8 March 2016 Jennifer.Obrad talk contribs uploaded File:Penn carb fig1.jpg (Chart Showing the Development of the Stratigraphic Classification of the Pennsylvanian System in the Illinois Basin. Compiled by the Tri-State Committee on Correlation of the Pennsylvanian System in the Illinois Basion, 2001.)
- 14:04, 15 January 2016 Jennifer.Obrad talk contribs uploaded a new version of File:Penn symbol.png (Pennsylvanian Geo Unit Designation symbol)
- 13:45, 15 January 2016 Jennifer.Obrad talk contribs uploaded a new version of File:Cambrian symbol.png (Symbol Used for the Cambrian Geo Unit Designation)
- 13:37, 15 January 2016 Jennifer.Obrad talk contribs uploaded a new version of File:Cambrian symbol.png (Symbol Used for the Cambrian Geo Unit Designation)
- 13:34, 15 January 2016 Jennifer.Obrad talk contribs uploaded a new version of File:Cambrian symbol.png (Symbol Used for the Cambrian Geo Unit Designation)
- 13:33, 15 January 2016 Jennifer.Obrad talk contribs uploaded a new version of File:Cambrian symbol.png
- 21:08, 14 January 2016 Jennifer.Obrad talk contribs uploaded File:Cambrian symbol.png (Symbol Used for the Cambrian Geo Unit Designation)
- 20:57, 14 January 2016 Jennifer.Obrad talk contribs uploaded a new version of File:Penn symbol.png
- 20:55, 14 January 2016 Jennifer.Obrad talk contribs uploaded File:Penn symbol.png (Symbol Used for the Pennsylvanian Geo Unit Designation)
- 17:00, 13 November 2015 Jennifer.Obrad talk contribs uploaded File:Pennsylvanian symbol.png