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The Middlesboro crater (or astrobleme) is a meteorite crater in Kentucky, United States. [2] It is named after the city of Middlesboro, Kentucky, which today occupies much of the crater. The crater is approximately 3 miles (about 5 km) wide and its age is estimated to be less than 300 million years . The impactor is estimated to have been about ...
Upheaval Dome is an enigmatic geological structure in San Juan County, Utah, United States, that has been variously interpreted as a meteorite impact structure or a salt dome. The structure lies 22 miles (35 km) southwest of the city of Moab, Utah , in the Island in the Sky section of Canyonlands National Park .
The following craters are officially considered "unconfirmed" because they are not listed in the Earth Impact Database. Due to stringent requirements regarding evidence and peer-reviewed publication, newly discovered craters or those with difficulty collecting evidence generally are known for some time before becoming listed.
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 ...
The reidite found at the Rock Elm structure is the oldest known example of the mineral. [5] It has been found in other impact sites such as the Xiuyan crater in China; the Chesapeake Bay impact crater in Virginia, United States; and the Nordlinger Ries crater in Germany. [6]
Researchers located the world’s only mountaintop impact crater. A study of the shock pattern data in quartz minerals confirms that the impact was a meteor.
The 7.46 carat diamond discovered by Julien Navas, of Paris, France, upon his visit to the Crater of Diamonds State Park in Arkansas on January 11, 2024. - Courtesy Arkansas State Parks
The Wetumpka impact crater is the only confirmed impact crater in Alabama, United States.It is located east of downtown Wetumpka in Elmore County.The crater is 4.7 miles (7.6 km) in diameter, and its age is estimated to be about 85 million years (late Cretaceous), [1] based on fossils found in the youngest disturbed deposits, which belong to the Mooreville Chalk Formation.