Fossil-rich geologic formation on the East Coast of the United States
Patapsco Formation
Stratigraphic range: Albian–Cenomanian
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Outcrop of the Patapsco Formation at Reynold's Mine, Anne Arundel County, Maryland showing the Arundel Formation overlain by the Patapsco Formation
Type
Formation
Unit of
Potomac Group
Underlies
Raritan Formation
Overlies
Arundel Formation
Thickness
200 feet (60 m)
Lithology
Primary
clay, sand
Other
silt
Location
Region
Virginia Maryland
Country
United States
Type section
Named for
Patapsco River
Named by
William Bullock Clark (1897)[1]
The Patapsco Formation is a geologic formation of varigated clays, sandy clays, and sand in Virginia, the District of Columbia, Maryland, Delaware, Pennsylvania, and in the subsurface of New Jersey.[1][2] It preserves fossils such as plants and molluscs dating back to the Cretaceous period.[1]
^ abcClark, W.B., 1897, Outline of present knowledge of the physical features of Maryland: Maryland Geological Survey Volume Series, v. 1, pt. 3, p. 172-188.
^Richards, Horace G.; Olmstead, F. H.; Ruhle, James L. (1962). "Generalized structure contour maps of the New Jersey coastal plain" (PDF). New Jersey Geological Survey Reports. 4: 38. Retrieved 28 June 2018.
and 28 Related for: Patapsco Formation information
The PatapscoFormation is a geologic formation of varigated clays, sandy clays, and sand in Virginia, the District of Columbia, Maryland, Delaware, Pennsylvania...
its first formation being in 1906. Patapsco Valley State Park is managed by the Maryland Department of Natural Resources. 20th century Formation of the park...
The Arundel Formation, also known as the Arundel Clay, is a clay-rich sedimentary rock formation, within the Potomac Group, found in Maryland of the United...
Maryland (1917) as follows: The formation consists of diverse materials similar to those composing the Patapscoformation, except that, in general, the...
of a new genus of Sauropoda and other new dinosaurs from the Potomac Formation. American Journal of Science 135:89-94. Clark, W.B., (1897), Outline of...
describes the controversial history of investigating the complicated Patapscoformation in Maryland and Virginia (USA), and claims that “an adaptation of...
sedimentary rocks. The Potomac Group is subdivided into the PatapscoFormation and Patuxent Formation, which comprise gravel conglomerate, sandstones and sandy...
the entire plant, are described from the Devonian (Famennian) Wutong Formation (China) by Liu et al. (2017). Description of fossil leaves of Plagiozamites...
above include outcrops along the Rapids Trail in the McKeldin Area of Patapsco Valley State Park and along roads around the Loch Raven Reservoir. Crowley...
bearing muscovite but less commonly garnet." The type locality is along the Patapsco River at Oella, southwest Baltimore County. Geology portal Ellicott City...
Aquifer Ozark Plateau aquifer Patapsco aquifer Permian Sea Potomac–Raritan–Magothy aquifer Saginaw Aquifer San Diego Formation San Joaquin River aquifer Sankoty...
in Washington, D.C. Woodstock College was originally located along the Patapsco River in Woodstock, Maryland, west of Baltimore. It incorporated in 1867...
British Royal Navy's ships should they attempt to sail up the harbor and the Patapsco River to shell the town. Congress was again forced to flee Philadelphia...
expedition to the Patapsco River, a word used by the Algonquin language natives who fished shellfish and hunted The name "Patapsco" is derived from pota-psk-ut...
guitar at 15 and realized he wanted to write and produce music. He went to Patapsco High School and Center for the Arts, and later went to Berklee College...
Sortable list of commissioned vessels of the Royal New Zealand Navy from its formation on 1 October 1941 to the present. It does not include vessels of the New...
completed construction of a large marine terminal at Port Covington, on the Patapsco River in Baltimore, to support the Gould organization's expansion plans...
in place". The Hill. Retrieved 3 March 2023. "Key Bridge collapses into Patapsco River in Baltimore after vessel hits support column; state of emergency...
you" carved into a tree, with no dates or names accompanying it. Found in Patapsco, Maryland. Other carvings on this tree date between 1970s and present time...
at North Point, where they were met by American militia further up the Patapsco Neck peninsula. An exchange of fire began, with casualties on both sides...
Granodiorite from two locations. H7-A is on River Road, 0.3 miles east of the Patapsco River Bridge, Ellicott City, and H18-1A is on U.S. Route 29, 200 yards...
geologists to have been a remnant of a former natural lake. Maryland has shale formations containing natural gas, where fracking is theoretically possible. As is...
School Overlea High School Owings Mills High School Parkville High School Patapsco High School Perry Hall High School Pikesville High School Randallstown...
Global Information
Virginia 
Maryland
United States