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NARROW
GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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United States
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Illinois
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Jackson County Illinois (1)
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Union County Illinois (1)
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Missouri
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Perry County Missouri (1)
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Sainte Genevieve County Missouri (1)
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fossils
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Invertebrata
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Porifera
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Stromatoporoidea (1)
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geologic age
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Paleozoic
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Carboniferous
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Mississippian
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Upper Mississippian
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Chesterian
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Aux Vases Sandstone (1)
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Renault Formation (1)
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Devonian
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Middle Devonian
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Saint Laurent Limestone (1)
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Primary terms
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Invertebrata
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Porifera
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Stromatoporoidea (1)
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paleontology (1)
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Paleozoic
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Carboniferous
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Mississippian
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Upper Mississippian
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Chesterian
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Aux Vases Sandstone (1)
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Renault Formation (1)
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Devonian
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Middle Devonian
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Saint Laurent Limestone (1)
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sedimentary rocks
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carbonate rocks
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limestone (1)
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clastic rocks
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sandstone (1)
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sedimentation (1)
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stratigraphy (1)
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United States
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Illinois
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Jackson County Illinois (1)
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Union County Illinois (1)
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Missouri
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Perry County Missouri (1)
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Sainte Genevieve County Missouri (1)
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sedimentary rocks
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sedimentary rocks
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carbonate rocks
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limestone (1)
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clastic rocks
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sandstone (1)
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Geologic features near Grand Tower, Illinois: The Devil’s Backbone, The Devil’s Bake Oven, and Fountain Bluff
Abstract The Devil’s Backbone, the Devil’s Bake Oven, and Fountain Bluff are located in extreme southwestern Illinois in Jackson County, adjacent to the Mississippi River (Fig. 1). All three sites are shown along the southeastern edge of the Altenburg 7½-minute Quadrangle; the remainder of Fountain Bluff is shown on the Gorham 7½-minute Quadrangle. Locality 1, the Devil’s Backbone, and Locality 2, the Devil’s Bake Oven, are situated in Grant Tower City Park on the northwest side of town; Locality 3, Fountain Bluff, is about 1 mi (1.6 km) north of town. All sites are readily accessible via car and short walks. Locality 1. The Devil’s Backbone: abandonedquarry on southeast end of ridge, SE¼SW¼SW¼Sec.24, T.10S., R.4W., 3rdp. M. (Fig. 2). Locality 2. TheDevil’s Bake Oven: center ofS½4NE¼Sec.23, T.10S., R.4W., 3rdp. M. Locality 3. Draw situatedalong the southwestern side of Fountain Bluff, SE¼NW¼-Sec.13, T.10S., R.4W., 3rdp. M. Access to the latter site may be gained by asking the owner, who lives in the white frame house just across theroad to the south of the draw, and less than 0.25 mi (0.4 km) northwest of the T-road intersection near the center of the NE¼SW¼Sec.13.