User contributions for Alan.Myers

5 April 2016

• 13:2213:22, 5 April 2016 diff hist +201‎ N File:Figure S-2F.jpg ‎ 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. current
• 13:1613:16, 5 April 2016 diff hist +107‎ N File:Figure S-2E.jpg ‎ Fig. S-2E -- Mottled, porous, pure dolomite characteristic of Racine reef facies in the Chicago area (x 1). current
• 13:1613:16, 5 April 2016 diff hist +160‎ N File:Figure S-2D.jpg ‎ 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. current
• 13:1513:15, 5 April 2016 diff hist +90‎ N File:Figure S-2C.jpg ‎ Fig. S-2C -- Massive Marcus Dolomite in a quarry 3 miles east of Fulton, Whiteside County. current
• 13:1413:14, 5 April 2016 diff hist +166‎ N File:Figure S-2B.jpg ‎ 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. current
• 13:1413:14, 5 April 2016 diff hist +176‎ N File:Figure S-2A.jpg ‎ 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. current
• 13:1113:11, 5 April 2016 diff hist +273‎ N File:Figure Q-1E.jpg ‎ 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... current
• 13:1013:10, 5 April 2016 diff hist +213‎ N File:Figure Q-1D.jpg ‎ 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. current

4 April 2016

• 20:2220:22, 4 April 2016 diff hist +165‎ N File:Figure O-2F.jpg ‎ 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. current
• 20:2120:21, 4 April 2016 diff hist +136‎ N File:Figure O-2E.jpg ‎ Fig. O-2E -- Massice Oneota Dolomite containing a large algal growth; in a quarry in Lee County, 6 Miles south of Rochelle, Ogle County. current
• 20:1920:19, 4 April 2016 diff hist +286‎ N File:Figure O-2D.jpg ‎ 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... current
• 20:1720:17, 4 April 2016 diff hist +198‎ N File:Figure O-2C.jpg ‎ 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. current
• 20:1420:14, 4 April 2016 diff hist +288‎ N File:Figure O-2B.jpg ‎ 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... current
• 18:5518:55, 4 April 2016 diff hist +105‎ N File:Figure M-1F.jpg ‎ Fig. M-1F -- Grannular texture of the Ullin Limestone along Mill Creek, south of Anna, Union County (x1). current
• 18:5418:54, 4 April 2016 diff hist +89‎ N File:Figure M-1E.jpg ‎ Fig. M-1E -- Oolitic texture of the Ste. Genevieve Limestone at Anna, Union County (x10). current
• 18:5218:52, 4 April 2016 diff hist +183‎ N File:Figure M-1D.jpg ‎ 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. current
• 18:5018:50, 4 April 2016 diff hist +267‎ N File:Figure M-1C.jpg ‎ 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,... current
• 18:4718:47, 4 April 2016 diff hist +179‎ File:Figure M-1B.jpg ‎No edit summary current
• 18:4418:44, 4 April 2016 diff hist +186‎ N File:Figure M-1A.jpg ‎ Fig. M-1A -- Vienna Limestone overlying the sheet facies of the Tar Springs Sandstone in roadcut (about 40 feet high) of Illinois Highway 3 on southeast side of Chester, Randolph County. current
• 18:3818:38, 4 April 2016 diff hist +79‎ N File:Figure K-1C.jpg ‎ Fig. K-1C -- Bedding surface of Mounds Gravel in same pit as exposure B (x1.5). current
• 18:3718:37, 4 April 2016 diff hist +105‎ N File:Figure K-1B.jpg ‎ Fig. K-1B -- Mounds Gravel in pit along Illinois Highway 145, 8 miles north of Metropolis, Massac County. current
• 18:3518:35, 4 April 2016 diff hist +67‎ N File:Figure K-1A.jpg ‎ Fig. K-1A -- McNairy Sand in a pit near Fayville, Alexander County. current
• 18:3318:33, 4 April 2016 diff hist +159‎ N File:Figure D-3E.jpg ‎ Fig. D-3E -- Dark gray, fine-grained Middle Devovian limestone containing white corals; polished section of core from depth of 3270 feet in Marion County (x1). current
• 18:3118:31, 4 April 2016 diff hist +141‎ N File:Figure D-3D.jpg ‎ Fig. D-3D -- Fine-grained, fossiliferous limestone characteristic of Cedar Valley Limestone in the Rock Island area, Rock Island County (x1). current
• 18:2918:29, 4 April 2016 diff hist +180‎ File:Figure D-3C.jpg ‎ ILSTRAT uploaded a new version of File:Figure D-3C.jpg current
• 18:2218:22, 4 April 2016 diff hist +113‎ N File:Figure D-3B.jpg ‎ Fig. D-3B -- Bailey Limestone in Pine Hills (Mississippi River bluffs), 5 miles north of Wolf Lake, Union County. current
• 18:2118:21, 4 April 2016 diff hist +188‎ N File:Figure D-3A.jpg ‎ Fig. D-3A -- Middle Devonian Limestone (Lingle and Grand Tower) in ridge ("the Backbone") along the Mississippi River north of Grand Tower, Jackson County (from Worthen, 1868, opp. p. 61). current
• 18:0918:09, 4 April 2016 diff hist +147‎ N File:Table 3.jpg ‎ Table 3 -- Alphabetic list of named cyclothems in Illinois, showing formation, distribution, and principal references (after Kosanke et al., 1960). current
• 18:0718:07, 4 April 2016 diff hist +64‎ N File:Table 2.jpg ‎ Table 2 -- Illinois Mineral Production in 1972 (Malhotra, 1974). current
• 18:0618:06, 4 April 2016 diff hist +54‎ N File:Table 1.jpg ‎ Table 1 -- Source Rocks of Illinois Mineral Resources. current
• 18:0518:05, 4 April 2016 diff hist +50‎ N File:Figure T-2.jpg ‎ Fig. T-2 -- Classification of the Tertiary System. current
• 18:0418:04, 4 April 2016 diff hist +58‎ N File:Figure T-1.jpg ‎ Fig. T-1 -- Distribution of the Mounds and Grover Gravels. current
• 18:0218:02, 4 April 2016 diff hist +49‎ N File:Figure S-16.jpg ‎ Fig. S-16 -- Electric log of the Silurian System. current
• 17:5917:59, 4 April 2016 diff hist +49‎ N File:Figure S-14.jpg ‎ Fig. S-14 -- Thickness of the Alexandrian Series. current
• 17:5817:58, 4 April 2016 diff hist +91‎ N File:Figure S-13.jpg ‎ Fig. S-13 -- Thickness of the Hunton Limestone Megagroup (modified from Bond et al., 1971). current
• 17:5717:57, 4 April 2016 diff hist +38‎ N File:Figure S-12.jpg ‎ Fig. S-12 -- Typical Silurian fossils. current
• 17:5617:56, 4 April 2016 diff hist +62‎ N File:Figure S-11.jpg ‎ Fig. S-11 -- North-south cross section of the Silurian System. current
• 17:5617:56, 4 April 2016 diff hist +91‎ N File:Figure S-10.jpg ‎ Fig. S-10 -- Development of the classification of the Silurian System in southern Illinois. current
• 17:5517:55, 4 April 2016 diff hist +89‎ N File:Figure S-9.jpg ‎ Fig. S-9 -- Development of the classification of the Silurian System in western Illinois. current
• 17:5417:54, 4 April 2016 diff hist +94‎ N File:Figure S-8.jpg ‎ Fig. S-8 -- Development of the classification of the Silurian System in northwestern Illinois. current
• 17:5317:53, 4 April 2016 diff hist +94‎ N File:Figure S-7.jpg ‎ Fig. S-7 -- Development of the classification of the Silurian System in northeastern Illinois. current
• 17:5217:52, 4 April 2016 diff hist +69‎ N File:Figure S-6.jpg ‎ Fig. S-6 -- Columnar section of Silurian System in southern Illinois. current
• 17:1117:11, 4 April 2016 diff hist +72‎ N File:Figure S-5.jpg ‎ Fig. S-5 -- Columnar section of the Silurian System in western Illinois. current
• 17:0317:03, 4 April 2016 diff hist +77‎ N File:Figure S-4.jpg ‎ Fig. S-4 -- Columnar section of the Silurian System in northwestern Illinois. current
• 17:0317:03, 4 April 2016 diff hist +73‎ N File:Figure S-3.jpg ‎ Fig. S-3 -- Columnar section of Silurian System in northeastern Illinois. current
• 17:0217:02, 4 April 2016 diff hist +121‎ N File:Figure S-1.jpg ‎ Fig. S-1 -- Silurian System thickness, outcroup areas, nomenclature boundary, and reef in the Moccasin Springs Formation. current
• 16:0016:00, 4 April 2016 diff hist +79‎ File:Figure Q-10.jpg ‎ ILSTRAT uploaded a new version of File:Figure Q-10.jpg current
• 15:5815:58, 4 April 2016 diff hist +80‎ N File:Figure Q-9.jpg ‎ Fig. Q-9 -- Woodfordian lobes and sublobes in Illinois (Willman and Frye, 1970). current
• 15:5615:56, 4 April 2016 diff hist +168‎ N File:Figure Q-8.jpg ‎ Fig. Q-8 -- Diagrammatic cross section showing the relations of the formations and members of Wisconsinan age in northern and western Illinois (Willman and Frye, 1970). current
• 15:5515:55, 4 April 2016 diff hist +165‎ N File:Figure Q-7.jpg ‎ Fig. Q-7 -- Diagrammatic cross section showing the relations of the formations and members of Illinoian age in central and western Illinois (Willman and Frye, 1970). current
• 15:5315:53, 4 April 2016 diff hist +79‎ N File:Figure Q-6.jpg ‎ Fig. Q-6 -- Development of classification of the Wisconsinan Stage in Illinois. current
• 15:5315:53, 4 April 2016 diff hist +142‎ N File:Figure Q-5.jpg ‎ Fig. Q-5 -- Areal distribution of the dominantly till formations and members of Illinois (after Willman and Frye, 1970; Johnson et al., 1972). current
• 15:5115:51, 4 April 2016 diff hist +53‎ N File:Figure Q-4.jpg ‎ Fig. Q-4 -- Classification of the Pleistocene Series. current
• 15:4215:42, 4 April 2016 diff hist +132‎ N File:Figure Q-3.jpg ‎ Fig. Q-3 -- Generalized thickness of the Quaternary deposits of Illinois (after Piskin and Bergstrom, 1967; Willman and Frye, 1970). current
• 15:4115:41, 4 April 2016 diff hist +67‎ N File:Figure Q-2.jpg ‎ Fig. Q-2 -- Glacial map of Illinois (after Willman and Frye, 1970). current
• 15:1415:14, 4 April 2016 diff hist +58‎ N File:Figure Pc-1.jpg ‎ Fig. Pc-1 -- Structure on top of the Precambrian basement. current
• 15:1315:13, 4 April 2016 diff hist +74‎ N File:Figure O-27.jpg ‎ Fig. O-27 -- Development of the classification of the Cincinnatian Series. current
• 15:1115:11, 4 April 2016 diff hist +45‎ N File:Figure O-26.jpg ‎ Fig O-26 -- Thickness of the Maquoketa Group. current
• 15:0515:05, 4 April 2016 diff hist +93‎ N File:Figure O-25.jpg ‎ Fig. O-25 -- Columnar section of the Cincinnatian Series (after Templeton and Willman, 1963). current
• 15:0415:04, 4 April 2016 diff hist +150‎ N File:Figure O-24.jpg ‎ Fig. O-24 -- Diagrammatic cross section of the Galena Group showing the principal faunal zones and bentonite beds (after Templeton and Willman, 1963). current
• 15:0315:03, 4 April 2016 diff hist +116‎ N File:Figure O-23.jpg ‎ Fig. O-23 -- Diagrammatic cross section showing the facies in the Galena Group. (after Templeton and Willman, 1963). current
• 15:0215:02, 4 April 2016 diff hist +86‎ N File:Figure O-22.jpg ‎ Fig. O-22 -- Columnar section of the Galena Group (after Templeton and Willman, 1963). current
• 15:0115:01, 4 April 2016 diff hist +43‎ N File:Figure O-21.jpg ‎ Fig. O-21 -- Thickness of the Galena Group. current
• 14:5914:59, 4 April 2016 diff hist +48‎ N File:Figure O-19.jpg ‎ Fig. O-19 -- Thickness of the Platteville Group. current
• 14:5814:58, 4 April 2016 diff hist +183‎ N File:Figure O-18.jpg ‎ Fig. O-18 -- Thickness of the Dutchtown Limestone and Joachim Dolomite and the distribution of the Starved Rock Sandstone Member of the St. Peter Sandstone and the Glenwood Formation. current
• 14:5614:56, 4 April 2016 diff hist +50‎ N File:Figure O-17.jpg ‎ Fig. O-17 -- Thickness of the St. Peter Sandstone. current
• 14:5614:56, 4 April 2016 diff hist +96‎ N File:Figure O-16.jpg ‎ Fig. O-16 -- Diagrammatic cross section of the Ancell Group (after Templeton and Willman, 1963). current
• 14:5514:55, 4 April 2016 diff hist +86‎ N File:Figure O-15.jpg ‎ Fig. O-15 -- Columnar section of the Ancell Group (after Templeton and Willman, 1963). current
• 14:5414:54, 4 April 2016 diff hist +57‎ N File:Figure O-14.jpg ‎ Fig. O-14 -- Thickness of the Ottawa Limestone Megagroup. current
• 14:5314:53, 4 April 2016 diff hist +76‎ N File:Figure O-13.jpg ‎ Fig. O-13 -- Geologic map of the sub-St. Peter surface in northern Illinois. current
• 14:5214:52, 4 April 2016 diff hist +74‎ N File:Figure O-12.jpg ‎ Fig. O-12 -- Development of the classification of the Champlainian Series. current
• 14:5114:51, 4 April 2016 diff hist +48‎ N File:Figure O-11.jpg ‎ Fig. O-11 -- Thickness of the Shakoppe Dolomite. current
• 14:5114:51, 4 April 2016 diff hist +53‎ N File:Figure O-10.jpg ‎ Fig. O-10 -- Thickness of the New Richmond Sandstone. current
• 14:5014:50, 4 April 2016 diff hist +70‎ N File:Figure O-9.jpg ‎ Fig. O-9 -- Thickness of the Oneota Dolomite and the Gunter Sandstone. current
• 14:4914:49, 4 April 2016 diff hist +59‎ N File:Figure O-8.jpg ‎ Fig. O-8 -- Columnar section of the Prairie du Chien Group. current
• 14:4814:48, 4 April 2016 diff hist +52‎ N File:Figure O-7.jpg ‎ Fig. O-7 -- Thickness of the Prairie du Chien Group. current
• 14:4714:47, 4 April 2016 diff hist +69‎ N File:Figure O-6.jpg ‎ Fig. O-6 -- Development of the Classification of the Canadian Series. current
• 14:4614:46, 4 April 2016 diff hist +38‎ N File:Figure O-5.jpg ‎ Fig. O-5 -- Typical Ordovician fossils current
• 14:4514:45, 4 April 2016 diff hist +52‎ N File:Figure O-4.jpg ‎ Fig. O-4 -- Classification of the Ordovician System. current
• 14:4514:45, 4 April 2016 diff hist +88‎ N File:Figure O-3.jpg ‎ Fig O-3 -- Structure of the top of the Galena Group (after Bristol and Buschbach, 1973). current
• 14:4314:43, 4 April 2016 diff hist +42‎ N File:Figure O-1.jpg ‎ Fig O-1 -- Thickness of Ordovician System. current
• 14:2914:29, 4 April 2016 diff hist +48‎ N File:Figure M-50.jpg ‎ Fig. M-50 -- Thickness of the Kinkaid Limestone. current
• 14:2914:29, 4 April 2016 diff hist +48‎ N File:Figure M-49.jpg ‎ Fig. M-49 -- Thickness of the Degonia Sandstone. current
• 14:2814:28, 4 April 2016 diff hist +46‎ N File:Figure M-48.jpg ‎ Fig. M-48 -- Thickness of the Clore Formation. current
• 14:2714:27, 4 April 2016 diff hist +50‎ N File:Figure M-47.jpg ‎ Fig. M-47 -- Thickness of the Palestine Sandstone. current
• 14:2614:26, 4 April 2016 diff hist +47‎ N File:Figure M-46.jpg ‎ Fig. M-46 -- Thickness of the Menard Limestone. current
• 14:2614:26, 4 April 2016 diff hist +52‎ N File:Figure M-45.jpg ‎ Fig. M-45 -- Thickness of the Waltersburg Sandstone. current
• 14:2514:25, 4 April 2016 diff hist +47‎ N File:Figure M-44.jpg ‎ Fig. M-44 -- Thickness of the Vienna Limestone. current
• 14:2414:24, 4 April 2016 diff hist +52‎ N File:Figure M-43.jpg ‎ Fig. M-43 -- Thickness of the Tar Springs Sandstone. current
• 14:2414:24, 4 April 2016 diff hist +50‎ N File:Figure M-42.jpg ‎ Fig. M-42 -- Thickness of the Glen Dean Limestone. current
• 14:2314:23, 4 April 2016 diff hist +52‎ N File:Figure M-41.jpg ‎ Fig. M-41 -- Thickness of the Hardinsburg Sandstone. current
• 14:2214:22, 4 April 2016 diff hist +46‎ N File:Figure M-40.jpg ‎ Fig. M-40 -- Thickness of the Haney Limestone. current
• 14:2214:22, 4 April 2016 diff hist +45‎ N File:Figure M-39.jpg ‎ Fig. M-39 -- Thickness of the Fraileys Shale. current
• 14:2114:21, 4 April 2016 diff hist +52‎ N File:Figure M-38.jpg ‎ Fig. M-38 -- Thickness of the Beech Creek Limestone. current
• 14:2014:20, 4 April 2016 diff hist +48‎ N File:Figure M-37.jpg ‎ Fig. M-37 -- Thickness of the Cypress Sandstone. current
• 14:1914:19, 4 April 2016 diff hist +51‎ N File:Figure M-36.jpg ‎ Fig. M-36 -- Thickness of the Ridenhower Formation. current
• 14:1914:19, 4 April 2016 diff hist +47‎ N File:Figure M-35.jpg ‎ Fig. M-35 -- Thickness of the Bethel Sandstone. current
• 14:1814:18, 4 April 2016 diff hist +54‎ N File:Figure M-34.jpg ‎ Fig. M-34 -- Thickness of the Downeys Bluff Limestone. current
• 14:1714:17, 4 April 2016 diff hist +51‎ N File:Figure M-33.jpg ‎ Fig. M-33 -- Thickness of the Yankeetown Sandstone. current
• 14:1714:17, 4 April 2016 diff hist +153‎ N File:Figure M-32.jpg ‎ Fig. M-32 -- Changes in position of the shoreline and the position of the Michigan River during late Valmeyeran and Chesterian times (after Swann, 1963). current