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Sandstone is a clastic sedimentary rock composed mainly of sand-sized silicate grains, cemented together by another mineral. Sandstones comprise about 20–25% of all sedimentary rocks.
Galesville is a city in Trempealeau County, Wisconsin, United States. The population was 1,662 at the 2020 census. A dam on Beaver Creek is located at Galesville, forming Lake Marinuka north of the city. The mayor is Vince Howe.
Jug Rock is a natural geological formation located outside of Shoals, Indiana, in the valley of the East Fork of the White River. It is composed of sandstone, and is the largest free-standing table rock formation in the United States east of the Mississippi River. It is part of the Mansfield formation, laid down in the Pennsylvanian geological epoch, roughly 325 to 286 million years ago. Erosion along fracture lines separated it from a nearby cliff. A companion feature, House Rock, stands opposite Jug Rock.
The Cumberland Plateau is the southern part of the Appalachian Plateau in the Appalachian Mountains of the United States. It includes much of eastern Kentucky and Tennessee, and portions of northern Alabama and northwest Georgia. The terms "Allegheny Plateau" and the "Cumberland Plateau" both refer to the dissected plateau lands lying west of the main Appalachian Mountains. The terms stem from historical usage rather than geological difference, so there is no strict dividing line between the two. Two major rivers share the names of the plateaus, with the Allegheny River rising in the Allegheny Plateau and the Cumberland River rising in the Cumberland Plateau in Harlan County, Kentucky.
The Cumberland Mountains are a mountain range in the southeastern section of the Appalachian Mountains. They are located in western Virginia, southwestern West Virginia, the eastern edges of Kentucky, and eastern middle Tennessee, including the Crab Orchard Mountains. Their highest peak, with an elevation of 4,223 feet (1,287 m) above mean sea level, is High Knob, which is located near Norton, Virginia.
The Morrison Formation is a distinctive sequence of Upper Jurassic sedimentary rock found in the western United States which has been the most fertile source of dinosaur fossils in North America. It is composed of mudstone, sandstone, siltstone, and limestone and is light gray, greenish gray, or red. Most of the fossils occur in the green siltstone beds and lower sandstones, relics of the rivers and floodplains of the Jurassic period.
The Indiana Uplands or the Hoosier Uplands are a geographical region in south-central Indiana. On a topographical map the Indiana Uplands begin slightly north of the city of Martinsville, Indiana and continue south to the Ohio River. The description of the region inspired the name of Upland Brewing Company. The region's approximate boundaries are Interstate 65 to the east and U.S. Route 231 to the west. The Uplands are characterized by terrain varying from rolling hills to cliffs, sharp rugged hills and valleys. Nearly all of these hills are composed of sandstone, limestone, and siltstone from West to east. The siltstone hills are the most rugged followed by the sandstone while the limestone are the smoothest. This is contrast to the Tipton Till Plain immediately to the north in central Indiana, which features flat to gently rolling landscape. Interstates 64 and 69 pass through this rugged section of the state with sections of both cut deep into the rock and others towering over the treetops.
The geology of Illinois includes extensive deposits of marine sedimentary rocks from the Palaeozoic, as well as relatively minor contributions from the Mesozoic and Cenozoic. Ice age glaciation left a wealth of glacial topographic features throughout the state.
Mill Bluff State Park is a state park in west-central Wisconsin, United States. It is located in eastern Monroe and western Juneau counties, near the village of Camp Douglas. A unit of the Ice Age National Scientific Reserve, the park protects several prominent sandstone bluffs 80 feet (24 m) to 200 feet (61 m) high that formed as sea stacks 12,000 years ago in Glacial Lake Wisconsin. As a result, these bluffs are steep and angular, dissimilar to the rounded terrain more typical of the eastern half of the United States. The bluffs served as landmarks to both early pioneers and travelers today on Interstate 90/94, which passes through the park.
Galesville is an unincorporated town and census-designated place (CDP) in Anne Arundel County, Maryland, United States. As of the 2010 census, it had a population of 685.
Galesville is an unincorporated community in Sangamon Township, Piatt County, Illinois, United States.
Maryland Route 255 is a state highway in the U.S. state of Maryland. The highway runs 4.21 miles (6.78 km) from MD 2 near Owensville east to Riverside Drive in Galesville. MD 255, which was built in the 1920s, originally included the portion of MD 468 between Galesville and Shady Side; the section in Galesville was MD 393. MD 255 and MD 468 were assigned to their present courses in the late 1940s.
Maryland Route 468 is a state highway in the U.S. state of Maryland. The highway runs 11.19 miles (18.01 km) from Snug Harbor Road in Shady Side north to MD 214 in Edgewater. MD 468 is a J-shaped route that connects Edgewater with the Chesapeake Bay communities of Galesville and Shady Side. The Galesville–Shady Side road was constructed as part of MD 255 in the 1920s. MD 468 was constructed north of MD 255 in the early 1930s. MD 255 was rerouted to enter Galesville and MD 468 was extended along MD 255's old route to Shady Side in the late 1940s.
The New Albany Shale is an organic-rich geologic formation of Devonian and Mississippian age in the Illinois Basin of the United States. It is a major source of hydrocarbons.
The Potsdam Sandstone, more formally known as the Potsdam Group, is a geologic unit of mid-to-late Cambrian age found in Northern New York and northern Vermont and Quebec and Ontario. A well-cemented sandstone of nearly pure quartz, in the 19th century it was widely used in construction and in refractory linings for iron furnaces.
The Munising Group or Formation is a 1,700 feet (520 m) thick, white to light grey Cambrian sedimentary unit that crops out in Michigan and Ontario. At one end of its extent, it comprises a basal conglomerate overlain by the Chapel Rock Member and the Miners Castle Member; elsewhere, it comprises the Eau Claire, Galesville (=Dresbach), and Franconia Members. Anhydritic evaporite deposits are present in places. The conglomerate was deposited by rivers in flood, with the Chapel Rock member, which contains deltaic deposits, representing transgression as the conglomerate cones became submerged; the Miners Castle member was deposited further from the shoreline, representing shelf deposits. Its uppermost strata may be Early Ordovician in age, and contain conodonts, trilobites and phosphatic moulds of brachiopods, ostrocoderm fish and gastropods.
The Raccoon Creek Group is a geologic group in Indiana. It preserves fossils dating back to the Carboniferous period.
The Big Clifty Formation is a geologic formation in Indiana. It preserves fossils dating back to the Carboniferous period.
The Mount Simon Sandstone is an Upper Cambrian sandstone and is found in many states in the Midwest such as Wisconsin, Minnesota, Iowa, Illinois, Iowa, and Missouri.
Black Rock is an extinct community located in Warren Township in Warren County, Indiana, near the border with Tippecanoe County. The site, which is still listed as a populated place by the USGS, is mostly forested and is part of the Black Rock Nature Preserve administered by NICHES Land Trust.
References
- ↑ "Galesville Sandstone". legacy.igws.indiana.edu.
