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The Chesapeake Bay (/ ˈ tʃ ɛ s ə p iː k / CHESS-ə-peek) is the largest estuary in the United States. The bay is located in the Mid-Atlantic region and is primarily separated from the Atlantic Ocean by the Delmarva Peninsula, including parts of the Eastern Shore of Maryland, the Eastern Shore of Virginia, and the state of Delaware.
The Chesapeake Bay impact crater is a buried impact crater, located beneath the mouth of Chesapeake Bay, United States. It was formed by a bolide that struck the eastern shore of North America about 35.5 ± 0.3 million years ago, in the late Eocene epoch. It is one of the best-preserved "wet-target" impact craters in the world. [3]
In addition, John Smith of Jamestown, Virginia, labeled their settlement as "Sasquesahanough" on his 1612 map when he explored the upper Chesapeake Bay area. [ 23 ] In Virginia and other southern colonies, Siouan -speaking tribes constituted a third major language family, with their peoples occupying much of the middle areas of the interior.
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David S. Powars is a Research Geologist with the United States Geological Survey at the Geology and Paleoclimate Science Center, in Reston, Virginia. [2]He is credited as a principal discoverer of the Chesapeake Bay impact crater.
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.
The Patapsco River (/ p ə ˈ t æ p ˌ s k oʊ / pə-TAP-skoh ⓘ) mainstem is a 39-mile (63 km) [1] river in central Maryland that flows into the Chesapeake Bay. The river's tidal portion forms the harbor for the city of Baltimore. With its South Branch, the Patapsco forms the northern border of Howard County, Maryland.
Type: sedimentary: Unit of: Chesapeake Group: Sub-units: Sunken Meadow Member, Rushmere Member, Morgarts Beach Member, Moore House Member, Tunnels Mill Member