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Directory Sites
Crater names, location, size, and age. Background information, images, FAQ.www.unb.ca
Text describing formation of impact craters. Images, glossary.
www.lpi.usra.edu
Reuben Johnson's K/T Expedition -- 2001
Background info on the Chicxulub impact crater at the K/T (Cretaceous/Tertiary) boundary with photos of the 2001 NASA/Planetary Society expedition to Belize and Mexico to study and gather ejecta samples.
members.tripod.com
Terrestrial Impact Cratering and Its Environmental Effects
World map of impact sites, details on the Chicxulub site, and details on environmental effects of impacts.
www.lpl.arizona.edu
Investigates the possibility they have been caused by comet fragments.
www.gsanctuary.com
Official site for the visitors center at the Barringer meteor crater. Short history, animations, visitor information.
www.meteorcrater.com
Images and short explanations of geologic features near the rim of the Barringer meteor crater.
www.meteorite.com
Travelogue of a geology class field trip to the Barringer meteor crater. Images, crater description, topographic map.
members.tripod.com
Map of crater locations in Canada, crater images, explanation and images of rock altered by impact.
miac.uqac.ca
Why are impact craters always round?
The answer given in an article from Scientific American.
www.sciam.com
Astronomy Picture of the Day - Impact: 65 Million Years Ago
Computer rendering of Chicxulub crater, from gravity and magnetic field data.
antwrp.gsfc.nasa.gov
Astronomy Picture of the Day - Manicouagan Impact Crater on Earth
Image taken from space shuttle Columbia in 1983.
antwrp.gsfc.nasa.gov
Astronomy Picture of the Day - Barringer Crater on Earth
Aerial photograph.
antwrp.gsfc.nasa.gov
A program that relates crater size to projectile size.
www.lpl.arizona.edu
A 'Smoking Gun' for Dinosaur Extinction
NASA JPL article on the Chicxulub crater. An image from the Shuttle Radar Topography Mission shows an elevation feature of the crater. The article gives background information and interpretation of the image.
www.jpl.nasa.gov