Chesapeake Group

Chesapeake Group
Stratigraphic range: Neogene
Calvert Formation Exposed at Brownies Beach
TypeGroup
Sub-unitsOld Church Formation, Calvert Formation, Choptank Formation, St. Marys Formation, Eastover Formation, Yorktown Formation, and Chowan River Formation
Location
RegionMaryland, Virginia, Delaware, North Carolina
CountryUnited States

The Chesapeake Group is a geologic group in Maryland, Virginia, Delaware, and North Carolina.[1][2][3] It preserves mainly marine fossils dating back to the Late Oligocene through the Pliocene epochs of the Neogene period.[4] This group contains one of the best studied fossil record of Neogene oceans in the world. Professional Paleontologists and amateur fossil hunters alike collect from this group intensely. The Calvert Cliffs stretch the length of Calvert County, Maryland and provide the best continuous stretch of the Calvert, Choptank, and St. Marys Formations. Ward (1985) recommended including the Old Church Formation in this group.[5]

See also

References

  1. ^ "Calvert Cliffs Fossils". mgs.md.gov. 2014. Retrieved 24 June 2014.
  2. ^ "Chesapeake Group | The Delaware Geological Survey". www.dgs.udel.edu. Retrieved 2020-08-14.
  3. ^ "Miocene bony fishes from the Calvert, Choptank, St. Marys and Eastover Formations, Chesapeake Group, Maryland and Virginia". ResearchGate. Retrieved 2020-08-14.
  4. ^ "Chesapeake Group | The Delaware Geological Survey". dgs.udel.edu. 2014. Retrieved 24 June 2014.
  5. ^ Ward, Lauck W. (1985). "Stratigraphy and characteristic mollusks of the Pamunkey Group (lower Tertiary) and the Old Church Formation of the Chesapeake Group; Virginia Coastal Plain". Professional Paper. doi:10.3133/pp1346. ISSN 2330-7102.


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