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	Kilbourne Hole - Wikipedia, the free encyclopedia
		Kilbourne Hole is a Maar volcanic crater, located 30 miles west of the Franklin mountains of El Paso, Texas, in Doña Ana County, New Mexico.
		The theory of formation is that a volcanic eruption occurs in the presence of ground waters, beneath the surface of the earth.
		Kilbourne hole and Hunt's hole are west 12 miles.
	en.wikipedia.org /wiki/Kilbourne_Hole (988 words)

	The Raging Main, Images of Kilbourne Hole (Site not responding. Last check: 2007-10-19)
		Kilbourne Hole is the result of a volcanic explosion crater in southern Dona Ana County, about 30 miles from Las Cruces New Mexico.
		Kilbourne Hole is roughly eliptical in shape and is about 1.7 miles long, over a mile across and hundreds of feet deep.
		The crusts of the Kilbourne Hole volcanic bombs are dull fl or brown, but when broken open, the often reveal a brilliant, sparkling yellow and green interior of olivine glass granules.
	www.ragingmain.com /html_killbourne/killbourne.htm (541 words)

	Kilbourne Hole, New Mexico (Site not responding. Last check: 2007-10-19)
		Kilbourne Hole is a maar, a low-relief, broad volcanic center formed by multiple shallow explosive pyroclastic surge eruptions.
		Kilbourne Hole and the others maars nearby are part of the Potrillo volcanic field, which is on the west margin of the Rio Grande Rift.
		Kilbourne Hole is noted for the presence of mantle xenoliths in the pyroclastic surge deposits.
	volcano.und.nodak.edu /vwdocs/volc_images/north_america/new_mexico/KilbourneHole.html (374 words)

	NMBGMR FAQ: Volcanoes
		Kilbourne Hole is an excellent example of a special volcanic feature called a maar.
		Kilbourne Hole formed when the Afton basalt interacted with wet rift-fill sediments in the Camp Rice Formation of the Santa Fe Group.
		Kilbourne Hole is well know as a source of gem grade peridot, as well as olivine-rich (peridotite) and middle-crustal granulite xenoliths.
	geoinfo.nmt.edu /faq/volcanoes/home.html (2569 words)

	Kilbourne Hole -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-19)
		Kilbourne Hole is a Maar volcanic crater, located 30 miles west of the Franklin mountains of (Click link for more info and facts about El Paso, Texas) El Paso, Texas, in (Click link for more info and facts about Doña Ana County, New Mexico) Doña Ana County, New Mexico.
		The volcanic features around El Paso and vicinity are part of the (Click link for more info and facts about Rio Grande Rift) Rio Grande Rift, which extends northward into (A state in west central United States in the Rocky Mountains) Colorado.
		Two (The commonest type of solidified lava; a dense dark gray fine-grained igneous rock composed chiefly of calcium-rich plagioclase feldspar and pyroxene) basalt cliffs inside the crater, with the characteristic reddish purple hexagonal columns occupy the northeast and southeast sides of the crater.
	www.absoluteastronomy.com /encyclopedia/k/ki/kilbourne_hole.htm (1164 words)

	Northwestern Men's Golf
		The second hole was halved by pars and on the third hole, long hitting Sarah Alfred of Tulsa, drove within 20 yards of the hole for the American team.
		The fourth and fifth holes were halved and the matched moved to the par four sixth hole where both teams anticipated driving the par-four with the wind behind them.
		After drives into the very stiff north wind, several chips were lofted high and soft to within inches of the hole only to have them begin to slowly waddle their way off the front of the green to a spot several yards shy of the green.
	www.nwalva.edu /athletic/mgolf/news.html (4750 words)

	A Field Trip to Collect Peridot at Kilbourne Hole, New Mexico (Site not responding. Last check: 2007-10-19)
		Kilbourne Hole is one of several volcanic maars located in Dona Ana County, New Mexico.
		Kilbourne Hole, located in an arid part of the world, has only a playa in its center.
		As previously stated, Kilbourne Hole peridot was carried to the surface as globular shaped masses included in a fluid basalt magma.
	www.mtlilygems.com /mineinfo/KHinfo.html (2462 words)

	Jean Kilbourne (Site not responding. Last check: 2007-10-19)
		In Jean Kilbourne's essay, "Own This Child", she states that it is wrong for companies to aim...
		Kilbourne lacks strength in her statement by failing...
		Description: Jean Kilbourne, Ed.D. (jkilbourne@aol.com) is internationally recognized for her pioneering work on alcohol and tobacco advertising and the image of women in advertising.
	www.poetrymag.com /Jean%20Kilbourne.htxl (407 words)

	VOLCANOES AND THE CHIHUAHUAN DESERT (Site not responding. Last check: 2007-10-19)
		In several places, the lava produced so much explosive steam as it boiled the ground water that great volumes of the old river sediment were blown out around the vent with little cinder or ash accumulating.
		Most of the material that was blown out fell back so that the hole is now only a few hundred feet deep.
		Kilbourne's Hole and Hunt's Hole, named for early ranchers in the region, are the best known.
	museum.utep.edu /chih19/intro/earth/earth.htm (313 words)

	Southern New Mexico Travel and Tourism Information: Kilbourne Hole — Southern New Mexico's largest ...
		The best time to travel to Kilbourne is late fall (November on), early winter and early spring (before May).
		Not only is Kilbourne unique in being Southern New Mexico's largest steam crater, but it has another distinction: It is the site of a rare, semi-precious gemstone known as Peridotite or Precious Green Olivine.
		I've been to Kilbourne twice and each time I came away with a five gallon bucket of peridotite for my rock garden.
	www.southernnewmexico.com /Articles/Southwest/Luna/KilbourneHole-SouthernNew.html (876 words)

	(GCPAR0) Kilbourne's Hole in the Earth Cache by celticknotclan (Site not responding. Last check: 2007-10-19)
		Kilbourne's Hole is a National Natural Landmark of a Volcanic nature.
		Kilbourne's Hole is a unique volcanic feature that is found in only a few places in the world.
		The hole is approximately 1.7 miles long by 1 mile wide and at least 400 feet deep.
	brillig.com /geocaching/r.cgi?gs=254636 (709 words)

	Peridot from San Carlos, Arizona (Site not responding. Last check: 2007-10-19)
		Kilbourne Hole is a volcanic maar located west of El Paso, Texas.
		The nature of the Kilbourne Hole deposit is somewhat similar to that of Peridot Mesa in Arizona.
		At Kilbourne Hole, a vessicular basalt containing olivine inclusions rose to the surface and was ejected in a violent explosion.
	www.mtlilygems.com /peridot/per856.html (207 words)

	CVO Website - New Mexico Volcanoes and Volcanics
		Kilbourne Hole, the best known of the Potrillo maar volcanoes, sits astride the north-south-trending Fitzgerald fault, surrounded by the late Cenozoic Afton basalt flow.
		The maar was formed by steam explosions due to the heating of water-saturated sand and silt strata by rising basaltic magma.
		Hunt's Hole is a shallower and smaller (1,385 meters wide) version of Kilbourne Hole.
	vulcan.wr.usgs.gov /Volcanoes/NewMexico/description_new_mexico_volcanics.html (2365 words)

	El Paso, Texas - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-10-19)
		The Franklin Mountains extend into El Paso from the north and nearly divide the city into two sections.
		El Paso is served by El Paso International Airport, I-10, U.S. Highway 54, and Mexican Federal Highway 45.
		Other volcanic features include Kilbourne hole and Hunt's hole, which are 30 miles (50 km) west of the Franklin Mountains.
	www.peekskill.us /project/wikipedia/index.php/El_Paso,_Texas (1540 words)

	Peridot - Source for Diamond Engagement Rings, Eternity Rings, Fine Diamond Jewelry. (Site not responding. Last check: 2007-10-19)
		The deposits are in the Buell Park area in McKinley County in the northwestern part of the State and in Kilbourne Hole and Potrillo Mar depression, both near the Mexican border in the southeastern part of the State.
		Some people believe the material from the Kilbourne Hole area is superior to the material from the famous Arizona location on the San Carlos Reservation.
		Currently, there is no commercial production of material from any of the deposits in New Mexico, but "rockhounds" and other mineral collectors gather materials from these locations for their own use.
	www.jewelryblue.com /content/view/13/39 (840 words)

	Summary of Citation (Site not responding. Last check: 2007-10-19)
		Basal Afton flow is a 12-ft-thick olivine basalt, dense and porphyritic with predominantly olivine phenocrysts.
		Outcrops in the rim of Hunt's Hole and on the La Mesa surface (present basin surface) south and east of Hunt's Hole.
		Oldest Afton flow, exposed in walls of Kilbourne Hole and Hunts Hole (maar volcanoes) gave K-Ar whole-rock dates of 141,000 +/-75,000 yrs and 103,000 +/-84,000 yrs (R. Denison, 1970, written communication).
	ngmdb.usgs.gov /Geolex/Refsmry/sumry_6328.html (437 words)

	NEWS
		Xenoliths from Kilbourne Hole, New Mexico, record conditions in the lithosphere of the southern RGR.
		Temperatures and pressures of 800-810 C and 6.5-7.0 kb are determined using the garnet-ilmenite thermometer and garnet-aluminosilicate-silica-plagioclase barometer, which is consistent with prior work on crustal xenoliths from Kilbourne Hole.
		These data can be combined with thermometry of mantle peridotites, which indicate temperatures of ~980-990 C immediately below the Moho, to construct a robust geotherm for this portion of RGR based on xenoliths.
	www.geo.utep.edu /pub/hamblock/Julie_Webpage.html (1089 words)

	DCP: 32 degrees north, 107 degrees west
		Kilbourne Hole, which is about 2.8 miles Southeast of the confluence.
		It is an ancient maar volcanic crater that is popular with local rockhounds searching for peridotite and semi-precious green olivine.
		The picture of Kilbourne Hole is taken from the Northeast rim of the crater.
	confluence.org /confluence.php?lat=32&lon=-107 (565 words)

	Kilborne Hole Trip
		Ballistic basalt block in surge deposits of tuff ring, Kilbourne Hole.
		We will examine Kilbourne Hole, a maar volcano, the tuff deposits around its rim, and look for mantle xenoliths composed of olivine, pyroxene, and other exotic minerals.
		sharp and drive to the Kilbourne Hole, 1 1/4 hours southwest of the university.
	www.nmsu.edu /~sge/Kilbourne.htm (171 words)

	Texas Tech Unviersity Geosciences - Field Trips: Rio Grande Rift (Site not responding. Last check: 2007-10-19)
		Kilbourne Hole, New Mexico, a late Pleistocene maar volcano.
		The Igneous/Metamorphic petrology course regulary visits the region to study mantle and crustal xenoliths that are contained within the erupted lavas.
		Base-surge deposits near the margin of the Kilbourne maar volcano.
	www.gesc.ttu.edu /FT/GEOSCI_FT_Rio.html (127 words)

	The Route to Kilbourne Hole, Dona Ana County, New Mexico (Site not responding. Last check: 2007-10-19)
		The Route to Kilbourne Hole, Dona Ana County, New Mexico
		Turn left onto Dona Ana A-011 and it is another 8.3 miles to the southeast corner of Kilbourne Hole (the blue dot on the above map, 31 degrees 57.35 minutes N, 106 degrees 57.38 minutes W).
		Hey look; Kilbourne Hole is only one of three maars in this area.
	www.mtlilygems.com /mineinfo/KHinfo5.html (124 words)

	Hunts Hole (Site not responding. Last check: 2007-10-19)
		Hunts Hole: This feature is "related to the West Potrillo Basalt Field located just Southwest of Las Cruces.
		The green area in the background is the bottom of the hole.
		Stuck in the sticky clay-like mud at the bottom of Kilbourne Hole.
	www.1256th.org /FtBliss/hunts_hole.htm (129 words)

	PtyS/LPL Fieldtrips: Southern New Mexico 2001 (Site not responding. Last check: 2007-10-19)
		This fieldtrip took us into New Mexico to study Kilbourne Hole (a volcanic maar crater), White Sands and assorted rocketry connections, and the Carrizozo lava flow.
		After camping near Kilbourne Hole, Jani described this maar crater.
		In this kind of crater, hot magma wells upwards into the saturated water table and generates large amounts of pressurized, superheated steam that explodes in all directions.
	www.lpl.arizona.edu /grad/fieldtrips/New_Mexico2001 (594 words)

	KILBOURNE
		Turn Left On this highway which will immediately take you over a bridge that crosses a set of railroad tracks.
		Immediately after the bridge you will turn right onto a paved road that will lead you directly to the dirt road which leads to Aden, Afton, Kilbourne and Hunt's volcanic features.
		You will not be able to see Kilbourne hole until you arrive at its edge, for this particular volcano looks more like a meteor impact crater.
	www.geo.utep.edu /loca/Volcanos/KILBOU.HTML (715 words)

	Dr. Elizabeth Y. Anthony
		Eric Kappus continues this theme with study of the Kilbourne Hole xenoliths.
		Long, Chris, 1994 (M.S.), Geochemistry of the ultramafic mantle xenoliths from Kilbourne Hole, Potrillo volcanic field, southern New Mexico.
		National Science Foundation (Pending), Evaluation of thermobarometry for mantle xenoliths from Kilbourne Hole, New Mexico.
	www.geo.utep.edu /faculty_staff/anthony.htm (1129 words)

	Potrillo Volcanic Field Seismic Experiment
		On May 16-18, 2003, the geophysics group at the University of Texas at El Paso conducted a wide-angle seismic refraction/reflection experiment across a portion of the southern Rio Grande Rift centered on the Potrillo Volcanic Field (PVF).
		The PVF is perhaps best known for its xenolith localities at two maar volcanoes within the field, Kilbourne Hole and Potrillo Maar.
		The experiment is part of a joint project to study magmatic contributions to crustal evolution in an intracontinental setting using the southern Rio Grande Rift as a natural laboratory.
	www.geo.utep.edu /pub/miller/pvfweb (601 words)

	West Texas Fieldtrip: Day 1
		Gwen climbs to the rim of Kilbourne hole, a giant volcanic crater in southern New Mexico, near El Paso.
		The reason we came to Kilbourne Hole is that during this particular volcanic event, the lava, as it upwelled through the lower layers of the Earth, took some of those lower layers with it as the lava rushed to the surface.
		We camped right below the rim of Kilbourne Hole on the night of day 1.
	c3po.barnesos.net /homepage/lpl/fieldtrips/WestTexas/day1 (270 words)

	Rockhounding Trip to Northern Mexico, February 28--March 20, 2002, By Sandy Hogan
		In this case, the left side of one ladder was lashed to the right side of a second ladder, so you had to swing over and then continue down.
		A second rock was dropped down another hole and took 8 seconds to land.
		This is the glory hole of the old Mina de Agua.
	www.rockhoundnotes.com /rockhoundingtriptonorthernmexico.htm (9591 words)

	Kilbourne Hole, New Mexico - Detailed Topographic Map (Site not responding. Last check: 2007-10-19)
		Kilbourne Hole, New Mexico - Detailed Topographic Map
		Hunts Hole, Kilbourne Hole, Kilbourne Hole, Phillips Hole
		Keywords: usgs united states government topo random isistopo TNM2185 NM New Mexico Kilbourne Hole 1:24,000 6.00 0607983264 81522 315230 320000 1065230 1070000 Y 2.44 500
	www.maporders.com /loc/31/106/315230t1065230.shtml (222 words)

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	www10.dyndns.org /content/hole-punch (106 words)

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