Patapsco Formation
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| Patapsco Formation | |
|---|---|
| Stratigraphic range: | |
| Lua error in package.lua at line 80: module 'Module:InfoboxImage/data' not found. 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] |
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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]
See also
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- List of fossiliferous stratigraphic units in Virginia
- List of fossiliferous stratigraphic units in Maryland
- Paleontology in Virginia
- Paleontology in Maryland
References
- ^ a b c Page Module:Citation/CS1/styles.css has no content.Clark, W.B. (1897). Outline of present knowledge of the physical features of Maryland (Report). Volume Series. Vol. 1. Maryland Geological Survey. pp. 172–188.
- ^ Page Module:Citation/CS1/styles.css has no content.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.
- Page Module:Citation/CS1/styles.css has no content.Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 19 August 2022. Retrieved 17 December 2021.
