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	Chicxulub Crater
		Chicxulub is certainly one of the largest impact structure on Earth and if the 300 km size estimate is proven correct, perhaps one of the largest produced in the inner solar system in the last 4 billion years.
		Chicxulub breccias and melt-rock have hydrothermal alteration patterns comparable to those of the Sudbury Onaping formation; which may indicate the presence of mineral resources deeper within the structure [ Shuraytz et al., 1994].
		It is of utmost importance that the well-preserved Chicxulub impact crater be re-drilled.
	www.agu.org /revgeophys/claeys00/node8.html (611 words)

	Chicxulub Crater - Wikipedia, the free encyclopedia
		They found that there was a nearly perfect ring of sinkholes centered on Puerto Chicxulub that matched the ring Penfield had found in his data.
		This has led to the hypothesis that the Chicxulub impact may have been only one of several impacts that happened all at the same time.
		Chicxulub impact predates the K-T boundary mass extinction
	en.wikipedia.org /wiki/Chicxulub_Crater (1266 words)

	ICDP Chicxulub - References (Site not responding. Last check: 2007-10-18)
		Chicxulub Crater, Yucatan: Tektites, impact glasses, and the geochemistry of target rocks and breccias.
		Chicxulub: The third dimension of a multi-ring impact basin.
		Sharpton, V.L., Corrigan, C.M.,Marin, L.E.,Urrutia-Fucugauchi, J., Vogel, T.A. Characterization of impact breccias from the Chicxulub impact basin: implications for excavation and ejecta emplacement.
	icdp.gfz-potsdam.de /sites/chicxulub/references/chicxpubs_01.htm (2425 words)

	Chicxulub crater, Mexico and the Cretaceous - Tertiary boundary
		The Chicxulub crater lies buried, straddling the northwest coastline of the Yucatán peninsula.
		Chicxulub is a peak-ring crater with a poorly known topographic ring occurring at 40 to 45 km radius from the crater's center.
		At this locality the ejecta layer from the Chicxulub crater is ~2 cm thick and at some places preserves the shapes of the individual tektites that compose the layer.
	miac.uqac.ca /MIAC/chicxulub.htm (1701 words)

	Chicxulub Crater
		The results suggest the crater was punched into the Earth around a third of a million years before the dinosaurs disappeared from the face of the planet.
		Keller and her team contend their findings prove the Chicxulub impact did not by itself trigger the extinction of the great beasts.
		The Chicxulub impact occurred during this warming period and, although the environmental effects were severe, it did not cause the extinction of the dinosaurs.
	www.daviddarling.info /encyclopedia/C/Chicx.html (721 words)

	Chicxulub Scientific Drilling Project
		The study of the Chicxulub cratering process contributes to the fundamentals of today's Earth and Planetary Science theories and is part of a new paradigm which emphasizes the role of interplanetary collisions in the geological and biological evolution of the Earth.
		The Chicxulub impact event and the K/T boundary problem is a highly multidisciplinary topic which undoubtedly calls for interdisciplinary communication within a broad range of fields ranging from geology and biology to astrophysics.
		At present, the basic conclusion from the hydrocode calculations is that density, velocity and impact angle of the projectile have a strong influence on the volumes of melt and vapor produced by the impact and on the distribution of melt and vapor into the lower and upper atmosphere, e.g.
	www.museum.hu-berlin.de /min/forsch/csdp.html (3394 words)

	Discovering the Crater
		It is a huge buried impact crater that is called Chicxulub, a Maya word that roughly translates as "tail of the devil." The crater, now buried beneath a kilometer-thick sequence of sediments, has been imaged using geophysical techniques that allow us to visualize underground structures.
		The asteroid or comet that produced the Chicxulub crater was roughly 10 km in diameter.
		The impact was similar to a large explosion, although the energy of the Chicxulub impact dwarfs anything modern civilization has experienced.
	www.lpl.arizona.edu /SIC/impact_cratering/Chicxulub/Discovering_crater.html (783 words)

	Chicxulub Crater -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-18)
		They found that there was a nearly perfect ring of (A depression in the ground communicating with a subterranean passage (especially in limestone) and formed by solution or by collapse of a cavern roof) sinkholes centered on Puerto Chicxulub that matched the ring Penfield had found in his data.
		Indeed, some evidence has accumulated that the actual crater is 300 kilometers (186 miles) wide, and the 180 kilometer ring is just an inner wall.
		The collision of (Click link for more info and facts about Comet Shoemaker-Levy 9) Comet Shoemaker-Levy 9 with Jupiter in 1994 proved that gravitational interactions can fragment a comet, giving rise to many impacts over a period of a few days if the comet should collide with a planet.
	www.absoluteastronomy.com /encyclopedia/C/Ch/Chicxulub_Crater.htm (1074 words)

	The Chicxulub Impact Crater - Effects
		It is difficult to explain the size of the extinctions, and the volume and distribution of ejecta at the boundary, from this lesser impact.
		The Chicxulub melt rocks are isotopically indistinguishable from K/T impact glasses, whilst the composition of the Manson melt rocks are significantly different (12).
		However, whilst the Chicxulub crater explains most, but not all, K/T boundary phenomena, some unexplained physical characteristics are better understood by multiple impacts at the time.
	palaeo.gly.bris.ac.uk /communication/Hanks/eff.html (1963 words)

	Ville de Chicxulub - Wikipédia
		Chicxulub est une ville côtière du Mexique, située au nord de la péninsule du Yucatán, dans l'état du même nom.
		Elle est connue grâce à son cratère et à la Météorite de Chicxulub qui d'après une théorie aurait amorcé l'extinction des dinosaures.
		Chicxulub signifie en langage maya : « la queue du diable ».
	fr.wikipedia.org /wiki/Ville_de_Chicxulub (77 words)

	Earth Collisions Asteroids Comets Meteors
		The asteroid or comet that produced the Chicxulub crater was roughly 10 km in diameter.
		The explosion that produced the Chicxulub crater excavated a huge amount of material, which was then ejected upwards.
		Some concentric arcs centered on the Chicxulub crater are clear in the bright lavender tones of the image.
	www.valdostamuseum.org /hamsmith/EarthCollisions.html (1684 words)

	BBC NEWS \| Science/Nature \| Dino crater viewed from space
		The so-called Chicxulub crater - or rather what remains of it; it has since been filled in by limestone sediments - has become the focus of intense study in recent years.
		The Chicxulub image is part of the latest dataset to be released from the US space agency's (Nasa) Shuttle Radar Topography Mission flown in 2000.
		Asteroid or comet responsible for Chicxulub was roughly 10 km in diameter
	news.bbc.co.uk /1/hi/sci/tech/2837407.stm (591 words)

	The Chicxulub Debate
		Chicxulub impact predates the K-T boundary mass extinction (by G. Keller, PNAS, Vol.
		Ever since the discovery of the Chicxulub subsurface crater in the early 1990s many scientists, the news media, Hollywood film-makers and the public have become convinced that a large meteorite killed the dinosaurs and most other organisms at the end of the Cretaceous.
		On the contrary, there is increasing evidence that the Chicxulub impact predated the end-Cretaceous mass extinction by about 300,000 years and did not cause the demise either of marine or terrestrial organisms.
	geoweb.princeton.edu /people/faculty/keller/chicxulub.html (303 words)

	Chicxulub review from Tooth and Claw
		It's the end of the world as we know it, and nurses are still cold martinets who personify the mindless brutality of the universe.
		"Chicxulub" compares the potential loss of a couple's beloved teenage daughter to the ever-present possibility that a big rock will strike the Earth's atmosphere, with catastrophic results.
		One example is Chicxulub, a rock several miles across that hit the Yucatán Peninsula some sixty-five million years ago, turning day to night and extinguishing most known species on the planet.
	www.nursingadvocacy.org /media/books/short/chicxulub.html (1130 words)

	Yucatan Beaches - Progreso, Chicxulub and More
		Near Merida, the most popular beaches are Chelem, Yucalpeten, Progreso, Chicxulub, Cocal Josefina, San Miguel, Uaymitun, San Benito, San Bruno (both these are not really towns, but they do have signs), Telchac Puerto, San Crisanto, and Dzilam Bravo.
		Chicxulub (Chick'-shoo-loob) is a very popular area with the snowbirds.
		Children of the homeowners from Chicxulub moved here to build their homes when they got married and wanted to build their own summer places.
	www.yucatantoday.com /destinations/eng-beaches.htm (629 words)

	Chicxulub Drilling Project Could Have Major Impact On Extinction Studies
		While quite controversial at first because of its catastrophic aspect, this hypothesis was confirmed in the early 1990's when scientists realized that the impact structure which lay buried under approximately 1 km of Yucatan platform sediments was in fact the long-sought KT boundary crater predicted by the Alvarez hypothesis.
		In the early nineties, studies of the recovered core samples confirmed that the Chicxulub structure was indeed a huge impact crater.
		Chicxulub can thus serve as a proto-typical and accessible large planetary impact structure providing key information as to the formation and early evolution of Earth and both dry (Moon, Mercury) and volatile- rich planets (e.g.
	www.spacedaily.com /news/deepimpact-01h.html (1089 words)

	Chicxulub Mexico Vacation Rentals, Hotels, Weather and Map
		Birdwatching, snorkeling, fishing, windsurfing and kayaking are also available in or near Chicxulub, and an 18-hole golf course is nearby.
		The village of Chicxulub, and the nearby town of Progreso, has all the necessary amenities, such as markets with fresh fruits and vegetables, a post office, drugstore, hospital and several restaurants featuring fresh seafood at great prices.
		Chicxulub is a peaceful hideaway and makes a good base from which to explore these and other places in the region.
	www.mexicovacations.com /mx/Chicxulub-Yucatan.html (546 words)

	CHICXULUB AND SUDBURY: COMPARISON OF IMPACT MELT ABUNDANCES AND PROPOSED EXPLANATION (Site not responding. Last check: 2007-10-18)
		We compare the structure and stratigraphy of the Chicxulub crater in Mexico and the Sudbury crater in Canada, taking advantage of the well-preserved morphologic state of Chicxulub and the highly-exposed (~8 km erosion) state of Sudbury.
		A sixth ring, the peak ring (~80 km), is present at Chicxulub, but apparently has been eroded away at Sudbury.
		The structural analysis indicates that both Sudbury and Chicxulub are 200 km diameter craters.
	gsa.confex.com /gsa/2002AM/finalprogram/abstract_38881.htm (415 words)

	TrueAuthority.com - Dinosaurs - Death of the Dinosaurs
		Because the 124 mile (200km) diameter crater, known as Chicxulub (located on the Yucatan Peninsula in Mexico, and named after a nearby town), is the most popular and widely-excepted "smoking gun" that killed the dinosaurs, it is only necessary that we take the time to examine it.
		One of the strongest supports that Chicxulub was the instigator of this widespread disaster is, as mentioned before, its time in history.
		In short, several lines of geological evidence from Chicxulub that make the case for the crater having been formed about 300,000 years before the mass, 65-million-year-old extinction.
	www.trueauthority.com /dinosaurs/death.htm (2033 words)

	BikeRideConkal-Chicxulub (Site not responding. Last check: 2007-10-18)
		Feeling inspired, I again mounted the trusty bicycle to continue the route described in the first page, this time riding to Conkal and then continuing on to Chicxulub Pueblo, another town about the size of Conkal.
		There's not much to see until you are almost in Chicxulub itself, when you will spot a green highway sign indicating a side road to a tiny village called Kantoyna.
		After that, you arrive in Chicxulub (the Pueblo not the beach) and you can enjoy the Sunday activities to be found there.
	www.geocities.com /TheTropics/9736/BikeRideConkal-Chicxulub.html (363 words)

	Cambridge Conference Correspondence (Site not responding. Last check: 2007-10-18)
		CHICXULUB PREDATES THE KT BOUNDARY AND IS NOT THE CAUSE FOR THE
		Chicxulub is the KT impact crater that caused the mass extinction.
		Chicxulub therefore was not the cause for the
	abob.libs.uga.edu /bobk/ccc/cc110203.html (1892 words)

	Athena Review 2,1: Chicxulub crater in Yucatán
		This crater, variously estimated at 180-300 km in diameter, is one of the largest impact structures known on Earth, or other planets in the solar system such as Venus, where many craters have been studied.
		Besides the value of the Chicxulub impact to explain catastrophic events causing the end of the dinosaur era on earth, of equal importance is comparative data useful for planetary geology.
		Similar tektites, formed from the heat of the Chicxulub impact, are scattered as far afield as Haiti and north Mexico.
	www.athenapub.com /crater1.htm (1191 words)

	Celestun \| Planeta
		MEXICO -- Located offshore of the town of Progreso lies the Chicxulub Impact Crater, buried deep under hundreds of meters of sediment.
		The crater was named after the nearby Mayan village of Chicxulub, and geologists continue to study the area.
		With a width of 200 kilometers (124, Chicxulub is not the largest crater on Earth.
	www.planeta.com /ecotravel/mexico/yucatan/chicxulub.html (344 words)

	37. Chicxulub, Yucatan, Mexico (Site not responding. Last check: 2007-10-18)
		The Chicxulub structure is not exposed on the surface; thus, only geophysical images give evidence of its presence and extent.
		This image shows the variations in the magnitude of the gravity field at sea level in the vicinity of the buried Chicxulub impact basin in the northwestern corner of the Yucatán Peninsula, Mexico.
		The Chicxulub basin is expressed as a broad, nearly circular region in which gravity values are 20–30 mGal lower than regional values.
	www.lpi.usra.edu /publications/slidesets/craters/slide_37.html (312 words)

	Earth Impact Database
		Kinsland, Gary L., Gary Sanchez, Michael Kobrick and Manuel Hurtado Cardador, 2003, Elements of the Chicxulub Impact structure as revealed in SRTM and surface GPS topographic data, in proceedings of the 34th Lunar and Planetary Science Conference, March 17 – 21, in Lunar and Planetary Institute Contribution No.1156.
		Koeberl, C. 1993 Chicxulub crater, Yucatan: Tektites, impact glasses, and the geochemistry of target rocks and breccias.
		Schultz, P.H. 1995 The trajectory and consequences of the Chicxulub impact (abstract).
	www.unb.ca /passc/ImpactDatabase/images/chicxulub.htm (6031 words)

	SPACE.com -- Ancient Asteroid Made Jell-O of Earth at Chicxulub Crater in Mexico's Yucatan
		A tourist in the jungle outside Chicxulub, about 200 miles (322 kilometers) west of Cancun, wouldn't see any evidence of the crater, now buried in eons of sediment.
		The animation of the Chicxulub event shows how the whole thing might have happened, right up to the part where the ring mysteriously solidifies, like terrestrial Jell-O in some standard crater mold.
		Much of it lies under the ocean, and all of it is hidden under 65 million years of sediment.
	www.space.com /scienceastronomy/planetearth/asteroid_jello_001122.html (1067 words)

	Geologists Weary, But Elated by Chicxulub Drilling Operations
		The Chicxulub Scientific Drilling Project is designed to drill through the overlying sediments, the impact breccias, the impact melt, and into the underlying impact-fractured rock.
		The Chicxulub Scientific Drilling Project (CSDP) is an international project to core 1.8-kilometers into an immense crater created by the impact of an asteroid or comet 65 million years ago.
		This core is composed of several layers of sedimentary rock that either represent a mammoth block of rock in the crater's impact breccias or the fractured floor beneath the crater.
	www.spacedaily.com /news/deepimpact-02c.html (937 words)

	IC Reporter - New insight into Mexico's Chicxulub crater (Site not responding. Last check: 2007-10-18)
		His research group hopes to use his model for the generation of the peak-ring at Chicxulub, to further their understanding of the geology of other cratered planets and satellites such as Mercury, Venus and the Moon.
		The crater itself is thought to have resulted from an impact with an asteroid or comet 65 million years ago.
		The Huxley School group hope their study will further the understanding of crater collapse; the final stage in the impact crater formation process that produces the strange internal structures that characterise complex craters.
	www.imperial.ac.uk /publications/reporterarchive/0099/feat05.htm (347 words)

	Chicxulub Vacation Rentals - Villa, Home and Condo Accommodations in Chicxulub
		Chicxulub Vacation Rentals - Villa, Home and Condo Accommodations in Chicxulub
		Vacation Rentals > Mexico > Yucatan > Chicxulub
		Chicxulub Villa Rentals - ID#56505 - 3 bedrooms.
	www.ownerdirect.com /accommodations/chicxulub.htm (213 words)

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