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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 100 | older 100) (20 | 50 | 100 | 250 | 500)- 14:02, 4 April 2016 Alan.Myers talk contribs uploaded File:Figure M-19.jpg (Fig. M-19 -- Thickness of the Ullin Limestone.)
- 14:01, 4 April 2016 Alan.Myers talk contribs uploaded File:Figure M-18.jpg (Fig M-18 -- Thickness of the Fort Payne Formation.)
- 14:01, 4 April 2016 Alan.Myers talk contribs uploaded File:Figure M-17.jpg (Fig. M-17 -- Thickness of Burlington Limestone.)
- 14:00, 4 April 2016 Alan.Myers talk contribs uploaded File:Figure M-16.jpg (Fig. M-16 -- Thickness of the Warsaw Shale, Borden Siltstone, and Springville Shale.)
- 13:59, 4 April 2016 Alan.Myers talk contribs uploaded File:Figure M-15.jpg (Fig M-15 -- Development of the classification of the Valmeyeran Series.)
- 13:58, 4 April 2016 Alan.Myers talk contribs uploaded File:Figure M-14.jpg (Fig. M-14 -- Diagrammatic east-west cross section across central Illinois showing the Borden Siltstone delta (after Lineback, 1968b).)
- 13:57, 4 April 2016 Alan.Myers talk contribs uploaded File:Figure M-13.jpg (Fig. M-13 -- Columnar section of the Valmeyeran Series in southern Illinois.)
- 13:56, 4 April 2016 Alan.Myers talk contribs uploaded File:Figure M-12.jpg (Fig. M-12 -- Columnar section of the Valmeyeran Series in central Illinois.)
- 13:55, 4 April 2016 Alan.Myers talk contribs uploaded File:Figure M-11.jpg (Fig. M-11 -- Columnar section of the Valmeyeran Series in western Illinois.)
- 13:54, 4 April 2016 Alan.Myers talk contribs uploaded File:Figure M-10.jpg (Fig. M-10 -- Thickness of the Valmeyeran Series. Thickness is shown where Chesterian strata are present.)
- 13:53, 4 April 2016 Alan.Myers talk contribs uploaded File:Figure M-9.jpg (Fig. M-9 -- Thickness of Chouteau Limestone and areal extent of formations of the North Hill Group (after Buschback, 1952; Workman and Gillete, 1956).)
- 13:30, 4 April 2016 Alan.Myers talk contribs uploaded File:Figure M-8.jpg (Fig. M-8 -- Thickness of the Mammoth Cave Limestone Megagroup. Thickness is shown where Chesterian strata are present.)
- 13:25, 4 April 2016 Alan.Myers talk contribs uploaded File:Figure M-7.jpg (Fig. M-7 -- Development of the classification of the Kinderhookian Series.)
- 13:24, 4 April 2016 Alan.Myers talk contribs uploaded File:Figure M-6.jpg (Fig. M-6 -- Columnar section of the Kinderhookian Series.)
- 13:24, 4 April 2016 Alan.Myers talk contribs uploaded File:Figure M-5.jpg (Fig. M-5 -- Thickness of the Kinderhookian Series.)
- 13:23, 4 April 2016 Alan.Myers talk contribs uploaded File:Figure M-4.jpg (Fig. M-4 -- Typical Mississippian fossils.)
- 13:22, 4 April 2016 Alan.Myers talk contribs uploaded File:Figure M-3.jpg (Fig. M-3 -- Classification of the Mississippian System.)
- 13:04, 4 April 2016 Alan.Myers talk contribs uploaded File:Figure M-2.jpg (Fig. M-2 -- Areal extent of the Mississippian System in Illinois. Thickness is shown where upper Chesterian strata are present.)
- 20:20, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure K-4.jpg (Fig. K-4 -- Distribution of Cretaceous strata in western Illinois (after Frye et al., 1964).)
- 20:19, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure K-3.jpg (Fig. K-3 -- Distribution of Cretaceous, Paleocene, and Eocene strata in southern Illinois (after Willman et al., 1967).)
- 20:17, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure D-20.jpg (Fig. D-20 -- Thickness of the Louisiana Limestone.)
- 20:17, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure D-19.jpg (Fig. D-19 -- Columnar section of the Upper Devonian Series.)
- 20:15, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure D-18.jpg
- 20:13, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure D-17.jpg (Fig. D-17 -- Thickness of the Blocher Shale (after North, 1969).)
- 20:12, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure D-16.jpg (Fig. D-16 -- Thickness of the Knobs Megagroup.)
- 20:10, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure D-15.jpg (Fig. D-15 -- Thickness of the Lingle Formation (compliled from North, 1969).)
- 20:09, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure D-14.jpg (Fig. D-14 -- Thickness of the Grand Tower Limestone (after North, 1969).)
- 20:08, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure D-13.jpg (Fig. D-13 -- Thickness of the Cedar Valley Limestone (after James, 1968).)
- 20:07, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure D-12.jpg (Fig. D-12 -- Thickness of the Wapsipinicon Limestone (after James, 1968).)
- 20:05, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure D-11.jpg (Fig. D-11 -- Columnar section of the Middle Devonian Series.)
- 20:04, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure D-10.jpg (Fig. D-10 -- Thickness of the Middle Devonian Series.)
- 20:03, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure D-9.jpg (Fig. D-9 -- Columnar section of the Lower Devonian Series.)
- 20:00, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure D-8.jpg (Fig. D-8 -- Thickness of the Lower Devonian Series.)
- 19:59, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure D-7.jpg (Fig. D-7 -- Geologic map of the sub-Kaskaskia surface.)
- 19:58, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure D-6.jpg (Fig. D-6 -- Typical Devonian fossils.)
- 19:57, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure D-5.jpg (Fig. D-5 -- Development of the classification of the Devonian System in southern Illinois.)
- 19:56, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure D-4.jpg (Fig. D-4 -- Development of the classification of the Devonian System in northern Illinois.)
- 19:52, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure D-2.jpg (Fig. D-2 -- Classification of the Devonian System.)
- 19:51, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure D-1.jpg (Fig. D-1 -- Thickness of the Devonian Systems.)
- 19:51, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure C-13.jpg (Fig. C-13 -- Thickness of the Eminence Formation.)
- 19:50, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure C-12.jpg (Fig. C-12 -- Thickness of the Potosi Dolomite.)
- 19:49, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure C-11.jpg (Fig. C- 11 -- Thickness of the Franconia Formation)
- 19:48, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure C-10.jpg (Fig. C-10 -- Thickness of the Ironton and Galesville Sandstones.)
- 19:47, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure C-9.jpg (Fig. C-9 -- Dominant rock types in the Eau Claire Formation.)
- 19:47, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure C-8.jpg (Fig. C-8 -- Thickness of the Eau Claire Formation.)
- 19:46, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure C-7.jpg (Fig. C-7 -- Thickness of the Knox Dolomite Megagroup.)
- 19:45, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure C-6.jpg (Fig. C-6 -- Thickness of the Mt. Simon Sandstone.)
- 19:44, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure C-5.jpg (Fig. C-5 -- Development of the classification of the Cambrian System.)
- 19:43, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure C-4.jpg (Fig. C-4 -- Diagrammatic cross section of the Cambrian System from northwestern to southeastern Illinois.)
- 19:42, 1 April 2016 Alan.Myers talk contribs uploaded File:Figure C-3.jpg (Fig. C-3 -- columnar section of the Cambrian System.)
- 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