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Topic: KT boundary

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	KT-Boundary - EvoWiki (Site not responding. Last check: 2007-10-20)
		The “event” marks the transition from the Mesozoic Era with its final Cretaceous (K) period and the Cenozoic Era and its initial period, the Tertiary, in the Geological Timescale.
		Another proposed cause for the K/T extinction event was radiation from a relatively nearby supernova explosion.
		Chatterjee, Sankar; VOLCANISM, INDIA-SEYCHELLES RIFTING, DINOSAUR EXTINCTION, AND PETROLEUM ENTRAPMENT AT THE KT BOUNDARY (http://gsa.confex.com/gsa/2003AM/finalprogram/abstract_58126.htm)
	wiki.cotch.net /index.php/KT-Boundary (964 words)

	Learn more about Cretaceous-Tertiary extinction event in the online encyclopedia. (Site not responding. Last check: 2007-10-20)
		The Cretaceous-Tertiary (KT) extinction event, also known as the KT boundary, was an extinction event that occurred about 65 million years ago, at the end of the Cretaceous period.
		In 1980, a team of researchers led by Nobel-prize-winning physicist Luis Alvarez, his son, geologist Walter Alvarez, and a group of colleagues discovered that fossilized sedimentary layers found all over the world at the Cretaceous-Tertiary boundary, 65.7 million years ago, contain a high proportion of iridium, which is relatively common in asteroids.
		Furthermore chromium isotopic anomalies are found in Cretaceous-Tertiary boundary which strongly supports the impact theory and suggests that the impactor must have been an asteroid or a comet composed of material similar to carbonaceous chondrites.
	www.onlineencyclopedia.org /c/cr/cretaceous_tertiary_extinction_event.html (969 words)

	K-T Extinction Boundary References (Site not responding. Last check: 2007-10-20)
		Rapid eruption of the Deccan flood basalts at the Cretaceous-Tertiary boundary.
		Izett, G.A. The Cretaceous/Tertiary boundary interval, Raton Basin, Colorado and New Mexico, and its content of shock-metamorphosed minerals: Evidence relevant to the K/T boundary impact theory.
		The KT boundary of the Pacific plate, pp.
	www.scn.org /~bh162/extinction_refs.html (3177 words)

	Cretaceous-Tertiary extinction event (Site not responding. Last check: 2007-10-20)
		The Cretaceous-Tertiary (KT) extinction event, also known as the KT boundary, was a period of extremely frequent extinction of species, about 65.5 million years ago.
		In 1980, a team of researchers led by Nobel-prize-winning physicist Luis Alvarez, his son, geologist Walter Alvarez, and a group of colleagues discovered that fossilized sedimentary layers found all over the world at the Cretaceous-Tertiary boundary, 65.5 million years ago, contain a relatively high concentration of iridium, hundreds of times greater than normal.
		The end of the Cretaceous coincided with the end of the dinosaurs and was in general a period of extraordinary mass extinction, leading to the Tertiary era, in which mammals came to dominate on Earth.
	www.sciencedaily.com /encyclopedia/cretaceous_tertiary_extinction_event (989 words)

	Benton
		Life and death at the KT boundary [review of 'Dinosaur extinction and the end of an era' by J. Archibald and 'The evolution and extinction of the dinosaurs' by D. Fastovksy and D. Weishampel].
		Ecosystem remodelling among vertebrates at the Permian-Triassic boundary in Russia.
		Ecosystem remodelling among vertebrates at the Permo-Triassic boundary in Russia.
	www.palaeo.gly.bris.ac.uk /personnel/benton/Benton.html (5375 words)

	[No title]
		High-resolution geochemical record of Cretaceous-Tertiary boundary sections in Mexico: New constrains on the K/T and Chicxulub events
		Late Maastrichtian and K/T paleoenvironment of the eastern Tethys (Israel): mineralogy, trace element and platinum group elements, biostratigraphy and faunal turnovers
		The Cretaceous-Tertiary (K/T) boundary transition at Coxquihui, state of Veracruz, Mexico: evidence for an early Danian impact event?
	www.img.uni-karlsruhe.de /seite_494.html (2789 words)

	Klexus Search Engine: ichnological (5) (Site not responding. Last check: 2007-10-20)
		SEPM PALAIOS 13.6 Trace Fossils in KT Boundar...
		PALAIOS Volume 13.6 December 1998 Trace Fossils in Cretaceous-Tertiary (KT) Boundary Beds in Northeastern Mexico: Implication...
		TRIASSIC-JURASSIC WORKING GROUP NEWS Meeting and Report International Workshop for a Climatic, Biotic, and Tectonic, Coring T...
	www.klexus.com /ichnological (100 words)

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