User contributions for Alan.Myers
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1 April 2016
- 20:1920:19, 1 April 2016 diff hist +119 N File:Figure K-3.jpg Fig. K-3 -- Distribution of Cretaceous, Paleocene, and Eocene strata in southern Illinois (after Willman et al., 1967). current
- 20:1720:17, 1 April 2016 diff hist +50 N File:Figure D-20.jpg Fig. D-20 -- Thickness of the Louisiana Limestone. current
- 20:1720:17, 1 April 2016 diff hist +59 N File:Figure D-19.jpg Fig. D-19 -- Columnar section of the Upper Devonian Series. current
- 20:1520:15, 1 April 2016 diff hist +51 File:Figure D-18.jpg No edit summary current
- 20:1320:13, 1 April 2016 diff hist +64 N File:Figure D-17.jpg Fig. D-17 -- Thickness of the Blocher Shale (after North, 1969). current
- 20:1220:12, 1 April 2016 diff hist +46 N File:Figure D-16.jpg Fig. D-16 -- Thickness of the Knobs Megagroup. current
- 20:1120:11, 1 April 2016 diff hist +75 File:Figure D-15.jpg No edit summary current
- 20:0920:09, 1 April 2016 diff hist +72 N File:Figure D-14.jpg Fig. D-14 -- Thickness of the Grand Tower Limestone (after North, 1969). current
- 20:0820:08, 1 April 2016 diff hist +73 N File:Figure D-13.jpg Fig. D-13 -- Thickness of the Cedar Valley Limestone (after James, 1968). current
- 20:0720:07, 1 April 2016 diff hist +73 N File:Figure D-12.jpg Fig. D-12 -- Thickness of the Wapsipinicon Limestone (after James, 1968). current
- 20:0520:05, 1 April 2016 diff hist +60 N File:Figure D-11.jpg Fig. D-11 -- Columnar section of the Middle Devonian Series. current
- 20:0420:04, 1 April 2016 diff hist +53 N File:Figure D-10.jpg Fig. D-10 -- Thickness of the Middle Devonian Series. current
- 20:0320:03, 1 April 2016 diff hist +58 N File:Figure D-9.jpg Fig. D-9 -- Columnar section of the Lower Devonian Series. current
- 20:0020:00, 1 April 2016 diff hist +51 N File:Figure D-8.jpg Fig. D-8 -- Thickness of the Lower Devonian Series. current
- 19:5919:59, 1 April 2016 diff hist +54 N File:Figure D-7.jpg Fig. D-7 -- Geologic map of the sub-Kaskaskia surface. current
- 19:5819:58, 1 April 2016 diff hist +37 N File:Figure D-6.jpg Fig. D-6 -- Typical Devonian fossils. current
- 19:5719:57, 1 April 2016 diff hist +90 N File:Figure D-5.jpg Fig. D-5 -- Development of the classification of the Devonian System in southern Illinois. current
- 19:5619:56, 1 April 2016 diff hist +90 N File:Figure D-4.jpg Fig. D-4 -- Development of the classification of the Devonian System in northern Illinois. current
- 19:5219:52, 1 April 2016 diff hist +50 N File:Figure D-2.jpg Fig. D-2 -- Classification of the Devonian System. current
- 19:5119:51, 1 April 2016 diff hist +46 N File:Figure D-1.jpg Fig. D-1 -- Thickness of the Devonian Systems. current
- 19:4019:40, 1 April 2016 diff hist +48 N File:Figure 17.jpg Fig. 17 -- Patterns and symbols used in figures. current
- 19:3919:39, 1 April 2016 diff hist +190 N 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. current
- 19:3819:38, 1 April 2016 diff hist +107 N File:Figure 15.jpg Fig. 15 -- Topography of the bedrock surface of Illinois (after Horberg, 1950a and Willman and Frye, 1970). current
- 19:3619:36, 1 April 2016 diff hist +92 N File:Figure 14.jpg Fig. 14 -- Pre-Pennsylvanian megagroups and sequences of Illinois (Swann and Willman, 1961). current
- 19:3519:35, 1 April 2016 diff hist +98 File:Figure 13.jpg No edit summary current
- 15:5715:57, 1 April 2016 diff hist +189 N 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. current
- 15:5415:54, 1 April 2016 diff hist +51 N File:Figure 9.jpg Fig. 9 -- Index map showing counties and townships. current
- 15:5315:53, 1 April 2016 diff hist +44 N File:Figure 8.jpg Fig. 8 -- Topography and rivers of Illinois. current
- 15:5215:52, 1 April 2016 diff hist +76 N File:Figure 7.jpg Fig. 7 -- Physiographic divisions of Illinois (after Leighton et al., 1948). current
- 15:5115:51, 1 April 2016 diff hist +59 N File:Figure 6.jpg Fig. 6 -- Geologic map of Illinois by Stuart Weller (1907). current
- 15:5015:50, 1 April 2016 diff hist +59 N File:Figure 5.jpg Fig. 5 -- Geologic map of Illinois by A. H. Worthen (1875). current
- 15:4915:49, 1 April 2016 diff hist +131 N File:Figure 4.jpg Fig. 4 -- Index to volumes issued by the Geological Survey of Illinois (Worthen Survey) in which individual counties are described. current
- 15:4615:46, 1 April 2016 diff hist +56 N File:Figure 3.jpg Fig. 3 -- Geologic map of Illinois by James Hall (1843). current
31 March 2016
- 16:3116:31, 31 March 2016 diff hist +151 N 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. current
- 16:2416:24, 31 March 2016 diff hist +70 N File:Figure 1.jpg Fig. 1 -- Summary of the age, origin, and thickness of Illinois rocks. current
17 August 2015
- 12:5612:56, 17 August 2015 diff hist +147 m Template:Redirect No edit summary current
13 August 2015
- 19:3819:38, 13 August 2015 diff hist 0 N File:B95.jpg No edit summary current
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