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The Allegheny River (/ ˌ æ l ɪ ˈ ɡ eɪ n i / AL-ig-AY-nee) is a 325-mile-long (523 km) tributary of the Ohio River that is located in western Pennsylvania and New York in the United States.
The Upper Greensand Formation is a Cretaceous formation of Albian to Cenomanian in age, found within the Wessex Basin and parts of the Weald Basin in southern England. [1] It overlies the Gault Clay and underlies the Chalk Group. It varies in thickness from zero to 75 m. It is predominantly a glauconitic fine-grained sandstone, locally becoming ...
Pennsylvania is also home to the famous Drake Oil Well in Titusville which helped give rise to the modern oil industry and two brand name motor oils, Quaker State (now owned by Royal Dutch Shell) and Pennzoil. Pennsylvania also has reserves of natural gas from both deeply buried source rocks and coal-bed areas.
The trails of the Indian skirted the rivers and offered for trader and explorer passageway to the West, especially to the towns of the Cherokees in the southern Alleghanies or Unakas; but the waterways and the roads over which the hogsheads of tobacco were rolled (hence called "rolling roads") sufficed for the needs of the thin fringes of ...
USGS Hydrologic Unit Map - State of Pennsylvania (1974) Shaw, Lewis C. (June 1984). Pennsylvania Gazetteer of Streams Part II (Water Resources Bulletin No. 16). Prepared in Cooperation with the United States Department of the Interior Geological Survey (1st ed.).
Llewellyn Formation: φl Pennsylvanian Pottsville Formation: φp Mississippian: Mauch Chunk Formation: Mmc Mississippian Pocono Formation (Burgoon Formation) Mp (Mb) Mississippian/Devonian Spechty Kopf Formation: Mississippian/Devonian Rockwell Formation: Mississippian/Devonian Huntley Mountain Formation: Devonian: Catskill Formation: Dck ...
Wills Creek and Town Creek Watersheds in Pennsylvania and Maryland. Wills Creek drops off the Allegheny Mountains of southeastern Somerset County, Pennsylvania, beginning on the western slope of Savage Mountain [2] in Larimer Township. It flows into Northampton Township, passing through Mance, Philson Station, and Glencoe.
A distinction is made between the Upper Greensand and Lower Greensand. The term greensand was originally applied by William Smith to glauconitic sandstones in the west of England and subsequently used for the similar deposits of the Weald, before it was appreciated that the latter are actually two distinct formations separated by the Gault Clay ...