List of impact structures in North America
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. For eroded or buried craters, the stated diameter typically refers to an estimate of original rim diameter, and may not correspond to present surface features.
![](http://up.wiki.x.io/wikipedia/commons/thumb/c/cc/Earth_Impact_Database_world_map.svg/220px-Earth_Impact_Database_world_map.svg.png)
![](http://up.wiki.x.io/wikipedia/commons/thumb/1/1a/North_America_%28orthographic_projection%29.svg/160px-North_America_%28orthographic_projection%29.svg.png)
Canada
editMexico
editName | Location | Diameter (km) | Age (Ma/millions) | Coordinates |
---|---|---|---|---|
Chicxulub | Yucatan | 170 | 64.98 ± 0.05 | 21°20′N 89°30′W / 21.333°N 89.500°W |
United States
editUnconfirmed impact structures
editThe 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. However, entries on the unconfirmed list could still have an impact origin disproven.
See also
edit- Impact craters
- Impact events
- Bolides and Meteorites
- Earth Impact Database – primary source
- Traces of Catastrophe book from Lunar and Planetary Institute - comprehensive reference on impact crater science
References
edit- ^ July 25, 2012. "Researchers discover new impact crater in the Arctic," Archived 2013-02-25 at the Wayback Machine University of Saskatchewan, Accessed August 8, 2012. NOTE: Geographic coordinates are in the comments section.
- ^ King Jr., David T. (April 23, 2010). "Wetumpka Crater". The Encyclopedia of Alabama. Alabama Humanities Foundation. Archived from the original on February 16, 2012. Retrieved February 7, 2013.
- ^ "Wetumpka's Coastal Impact Crater". City of Wetumpka. Retrieved February 7, 2013.
- ^ Vastag, Brian (18 February 2013). "Crater found in Iowa points to asteroid break-up 470 million years ago". Washington Post. Retrieved 19 February 2013.
- ^ U.S. Geological Survey. "Iowa Meteorite Crater Confirmed". Retrieved 7 March 2013.
- ^ a b c d e f g h Rajmon, David (October 10, 2009). "Impact Database 2009.2" (Excel). Impact Field Studies Group. Retrieved December 28, 2009.[permanent dead link]
- ^ "Victoria Island". Geographic Names Information System. United States Geological Survey, United States Department of the Interior.
- ^ Heinrich, P.V. (2003) Possible Meteorite Impact Crater in St. Helena Parish, Louisiana. Search and Discovery Article. no. 50006. American Association of Petroleum Geologist, Tulsa, Oklahoma. Retrieved March 27, 2011.
- ^ Heinrich, P.V. (2003) Origin of a Circular Depression and Associated Fractured and Shocked Quartz, St. Helena Parish, LA. Transactions of the Gulf Association of Geological Societies. vol. 53, pp. 313-322.
- ^ Anonymous, 2008, LGS Researcher Featured in Meteor Crater News Story. Archived 2012-03-21 at the Wayback Machine Center for Energy Studies, Louisiana State University Baton Rouge, LA 70803. Retrieved March 27, 2011.
External links
edit- Impact Database (formerly Suspected Earth Impact Sites list) maintained by David Rajmon for Impact Field Studies Group, USA
- Earth Impact Database (EID) maintained by the Planetary and Space Science Centre (PASSC), University of New Brunswick, Fredericton, New Brunswick, Canada