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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]
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.
This list includes all 60 confirmed impact structures in North America in the Earth Impact Database (EID). These features were caused by the collision of large meteorites or comets with the Earth.
name = Chesapeake Bay Name used in the default map caption; image = USA MD and Virginia location map crop.svg The default map image, without "Image:" or "File:" top = 39.94 Latitude at top edge of map, in decimal degrees; bottom = 36.35 Latitude at bottom edge of map, in decimal degrees; left = -77.91 Longitude at left edge of map, in decimal ...
The EID lists fewer than ten such craters, and the largest in the last 100,000 years (100 ka) is the 4.5 km (2.8 mi) Rio Cuarto crater in Argentina. [2] However, there is some uncertainty regarding its origins [3] and age, with some sources giving it as < 10 ka [2] [4] while the EID gives a broader < 100 ka. [3]
If the team can determine the site is a crater formed by an ancient impact event, then the next step is researching just when it happened. Of the world’s roughly 200 impact craters, 31 are ...
World map in equirectangular projection of the impact structures on the Earth Impact Database as of November 2017 (in the SVG file, hover over a structure to show its details) The Earth Impact Database is a database of confirmed impact structures or craters on Earth .
The huge indent, called the 'imbrue basin,' stretches across 750 miles.