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Topic: Barringer Meteor Crater

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2004 MN4

	Meteor Crater - Wikipedia, the free encyclopedia
		The Meteor Crater, sometimes known as the Barringer Crater and formerly as the Canyon Diablo crater, is a famous impact crater, located about 35 miles (55 km) east of Flagstaff, near Winslow in the northern Arizona desert (USA).
		The crater is somewhat misnamed, as it was actually excavated by a meteorite, not a meteor.
		Barringer and his partner, the mathematician and physicist Benjamin C. Tilghman, documented the evidence for the impact theory in papers presented to the U.S. Geological Survey in 1906 and published in the Proceedings of the Academy of Natural Sciences in Philadelphia.
	en.wikipedia.org /wiki/Barringer_Crater (1399 words)

	Catastrophism - EvoWiki (Site not responding. Last check: 2007-10-24)
		More dramatically, the occurrence of impact cratering has become well-established over the last half-century; such craters can often be recognized with the help of the "shock metamorphism" they produce in rocks -- some minerals will recrystallize under the high pressures of impact.
		Over 200 such craters are recognized on Earth, though most of them are very eroded and not nearly as apparent as the Great Barringer Meteor Crater of Arizona.
		Impacting objects are suspected to have caused several mass extinctions, notably the Cretaceous-Tertiary (K-T) extinction, where the iridium at that stratigraphic boundary had been contributed by the impactor that produced the Chicxulub crater.
	wiki.cotch.net /index.php/Catastrophism (449 words)

	Crater Impact
		The Barringer Meteorite Crater The Barringer Meteorite Crater The Barringer Meteorite Crater is a mile wide and 570 foot deep hole in the Arizona desert that was made by a meteorite approximately 50,000 years ago.
		Meteor Crater in Arizona (1.2 kilometers in diameter) is a well-known terrestrial example.
		Meteor Crater, Arizona and what happened to the plants, animals, and environment during the impact in: Planetary Science Research Discoveries (PSRD) educational on-line space science magazine.
	www.positiveimpact.biz /impact/crater-impact (899 words)

	ScienceDaily: Largest Crater In The Great Sahara Discovered By Boston University Scientists
		According to El-Baz, the Center's director, the crater’s vast area suggests the location may have been hit by a meteorite the entire size of the famous Meteor (Barringer) Crater in Arizona which is 1.2 kilometers wide.
		Impact crater -- An impact crater is a circular depression on a surface, usually referring to a planet, moon, asteroid, or other celestial body, caused by a collision of a smaller body (meteor) with the...
		Meteor -- A meteor is the visible path of a meteoroid that enters the Earth's (or another body's) atmosphere, commonly called a shooting star or falling...
	www.sciencedaily.com /releases/2006/03/060303204735.htm (2059 words)

	Timeline of evolution - Facts, Information, and Encyclopedia Reference article
		Most have organelles which are probably derived from symbiotic bacteria: mitochondria, which use oxygen to extract energy from organic molecules and appear similar to today's Rickettsia, and often chloroplasts, which derive energy from light and synthesize organic molecules and originated from cyanobacteria and similar forms.
		Many kinds of duck billed, horned and meat-eating dinosaurs; half of all known dinosaur species are from the last 30 MY of the Mesozoic, after the rise of the angiosperms.
		Formation of 85 km wide crater which forms the Chesapeake Bay, largest in United States, 7th largest worldwide, at Cape Charles, Virginia.
	www.startsurfing.com /encyclopedia/t/i/m/Timeline_of_evolution.html (3769 words)

	Astronomy Web Links of the C.S.I. Astrophysical Observatory (Site not responding. Last check: 2007-10-24)
		Antarctic Search for Meteorites (ANSMET) - program which recovers meteorite specimens from the Antarctic icesheet.
		Atmospheric Entry of Meteors - main physical processes in the atmospheric entry of large meteors.
		Some complete research papers on the topic are included and related links.
	supernova7.apsc.csi.cuny.edu /weblinks.html (893 words)

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