
	Where results make sense

Topic: Breccia

Related Topics

Alberto Breccia

In the News (Thu 20 Nov 08)

Mitt Romney

Giovanni Trapattoni

Steve Ballmer

James Bond

Ricky Hatton

Mark Begich

Nicole Kidman

Joe Lieberman

Diego Maradona

Cleveland Browns

	Breccia - LoveToKnow 1911
		In caves breccias of limestone are produced by the collapse of part of the roof, covering the floor with broken masses.
		Another group of breccias is due to crushing; these are produced in fissures, faults and veins, below the surface, and may be described as "crush-breccias" and "friction-breccias." Very important and well-known examples of this class occur as veinstones, which may be metalliferous or not.
		A third group of breccias is due to movement in a partly consolidated igneous rock, and may be called "fluxion-breccias." Lava streams, especially when they consist of rhyolite, dacite and some kinds of andesite, may rapidly solidify, and then become exceedingly brittle.
	www.1911encyclopedia.org /Breccia (796 words)

	La Historieta Argentina
		VITO NERVIO, Leonardo Wadel - Alberto Breccia, Patoruzito, 1949
		Breccia inherited this strip, first drawn by Emilio Cortinas, in 1947, and draw it for over ten years, giving the detective a tougher side, still with a classical comic style he already explored new and daring framings.
		Breccia and Sasturain started to work on this comic in 1982, as the army still ruled the country, and it is considered the best comic about Argentina during the dictatorship years, even out of its genre limits.
	www.buchmesse.de /comic-argentina/ebrecciaf.htm (860 words)

	Breccia - Wikipedia, the free encyclopedia
		Breccia, derived from the Latin word for "broken," is typically a sedimentary rock composed of angular fragments in a matrix that may be of a similar or a different material.
		Impact breccias are thought to be diagnostic of an impact event such as an asteroid or comet striking the earth, and are usually found at impact craters.
		Breccia was used on a limited scale by the ancient Egyptians - one of the best-known examples is the statue of the goddess Tawaret in the British Museum).
	en.wikipedia.org /wiki/Breccia (487 words)

	Breccia
		Breccia fragments are composed of quartzite (metamorphosed quartz sandstone).
		Breccias are associated with mechanical weathering in regions of high tectonic activity, typically relatively close to the sourceland.
		Breccias are the result of either mechanical weathering, or of tectonic brecciation (that is, the rock is shattered and crushed along fault zones).
	csmres.jmu.edu /geollab/Fichter/SedRx/Rocks/breccia1.html (142 words)

	Encyclopedia: Alberto Breccia (Site not responding. Last check: 2007-10-15)
		Alberto Breccia (born in Montevideo, Uruguay, on 15 April 1919 died in Buenos Aires on 10 November 1993) was a comic strip creator.
		Breccia drew the story with a decidedly experimental style, resorting to diverse techniques to obtain a work that was anything but conventional and moving away from the commercial.
		Breccia refused to modify its style, which added to the tone of the script, and was much different from Solano Lopez original.
	www.nationmaster.com /encyclopedia/Alberto-Breccia (488 words)

	Goemmer Butte vicinity (Site not responding. Last check: 2007-10-15)
		The breccia forms a crescent-shaped pipe that partly encloses the south, west and north sides of the trachyte plug.
		The evidence for this volcanic interpretation is the breccia pipe that partly surrounds the butte's core.
		Breccia is associated with explosive volcanic eruptions in which pre-existing rocks are broken, mixed, and violently ejected by high-pressure gas/steam explosions.
	academic.emporia.edu /aberjame/field/rocky_mt/goemmer.htm (574 words)

	Breccia (Site not responding. Last check: 2007-10-15)
		Breccia, derived from the Latin meaning "broken," is a rock formed of angular fragments in a matrix which may be of a similar or a different material.
		Subsequent cementation of these broken fragments may occur by means of mineral matter introduced by ground water.
		Volcanic breccias result from the cementation of fragments that have been broken by volcanic action.
	www.theezine.net /b/breccia.html (174 words)

	GemRocks: Breccia
		The diversity depends upon the fact that breccias have several modes of origin, and consequently, both the fragments and the finer grained matrices may be of just about any composition.
		Two examples are the Mackinac Breccia, which is well exposed in St. Ignace and on nearby Mackinac Island, Michigan; and the Zopilote Breccia of the Permian basin of west Texas.
		Geologically, most breccias are either lithified rubble -- e.g.,lithified sediments or pyroclastic deposits that consist to a noteworthy extent of pebble- to boulder-sized angular fragments -- or were formed by crushing and grinding within fault zones.
	www.cst.cmich.edu /users/dietr1rv/breccia.htm (1034 words)

	Medinah Minerals, Inc. - Lipangue Breccia Zone Summary Report
		The Lipangue Breccia Zone is a large hydrothermal, diatreme breccia pipe intruded at the contact between the Granodiorites of the Central Batholith and the intermediate volcanics of the Cretaceous "Formación Lo Prado".
		The breccia fragments were coated with crystals of quartz as the pressure dropped, the gases and fluids continued venting with hydrothermal fluids passing more slowly through the breccia pipe depositing contained sulphides in the form of pyrite and chalcopyrite.
		The existence of a hydrothermal breccia pipe is considered indicative of a mineralized porphyry copper-molybdenum-gold deposit at depth, which caused the breccia pipe by explosive degassing.
	www.medinah-minerals.com /lipangue.html (1060 words)

	Union College Geology Department, Petrology page, lunar rocks and lunar thin sections, thin section images, feldspathic ...
		This is sample of a friable, porous, multiply reworked feldspathic highland breccia from the Taurus-Littrow Valley area, in a range of mountains between Mare Serenetatis and Mare Tranquillitatis.
		The basalts are referred to in Meyer (1987) as being "pigeonite basalts", unrelated to the mare basalts and presumably older.
		I interpret this to be a fine-grained norite breccia that has annealed to smooth grain boundaries.
	www.union.edu /PUBLIC/GEODEPT/COURSES/petrology/moon_rocks/72275.htm (378 words)

	Business Wire: Mink Minerals Reports Quartz Breccia Yields Goo... @ HighBeam Research (Site not responding. Last check: 2007-10-15)
		The main breccia zone is open ended to the north, south and at depth.
		The breccia's high assay values are adjacent to the major aeromagnetic anomaly discovered earlier through an airborne geophysical survey conducted by Aerodat Inc. of Toronto, Ontario.
		The latter appears to be the extension of the quartz breccia structures in the South Niaouleni Zone.
	www.highbeam.com /library/doc0.asp?DOCID=1G1:19733491&refid=ip_encyclopedia_hf (483 words)

	WTP: Earth: Highland Breccia
		The most important process for altering the surface of the moon, however, is that of meteorites impacting upon and breaking up the surface.
		On the moon a breccia is made when meteorites break up the surface and the pieces are welded together by the heat and pressure of impact processes.
		This breccia was collected by Apollo 16 astronauts and is 3.9 billion years old.
	pds.jpl.nasa.gov /planets/captions/earth/breccia.htm (86 words)

	PRR-03610 breccia (Site not responding. Last check: 2007-10-15)
		Flow-banded "rhyodacite", tuffs, breccia, lens of thinly laminated red siltstones and sandstones (water-laid tuffs?), porphyritic ash-flow tuff.
		Sample is from coarse breccia, 10-15 m thick, overlying siltstone/sandstone lens.
		Breccia contains angular blocks of yellow-green aplitic material (up to 0.5 m in diameter and showing flow banding in random orientation) embedded in a fl porphyritic dacitic tuff matrix.
	www-bprc.mps.ohio-state.edu /rr/samples/exhibit1/e13620a.htm (99 words)

	Olympus Microscopy Resource Center: Polarized Light Microscopy Gallery - Breccia Marble
		When the breccia forms after a landslide or mudslide, for instance, the fragmentary material may be deposited in an unrelated area where the cement forms from a substance not typically connected with the clasts.
		Breccia marble is a type of breccia rock that can be polished to a fine luster and is commonly utilized for ornamental purposes.
		Indeed, breccias are a very diverse group of rocks, but a significant percentage of the breccias utilized for decorative purposes are primarily composed of silica, often in the form of jasper or chert.
	www.olympusmicro.com /galleries/polarizedlight/pages/brecciamarblesmall.html (268 words)

	Breccia pipe uranium deposits
		Breccia clasts as wide as 10 m across, consisting mainly of sandstone (~90 percent) and siltstone (~10 percent), occur in a matrix of quartz grains that is commonly well-cemented with carbonate minerals.
		Schematic cross section of a solution-collapse breccia pipe in the Grand Canyon region, showing the general distribution of uranium ore within the pipe (stratigraphic section modified after Van Gosen and Wenrich, 1989).
		Nearly all primary ore confined to the breccia pipe: rarely, a little uranium ore is reported in relatively undisturbed beds outside the ring structure.
	pubs.usgs.gov /bul/b2004/html/bull2004breccia_pipe_uranium_deposits.htm (1086 words)

	Alamo Breccia Research Page
		The Breccia was generated by forces unleashed during the impact of an extraterrestrial object with Earth.
		At Tempiute Mountain, twisted and fractured bedrock underlies the breccia, laced by an array of sedimentary dikes and sills injected with carbonate breccia and rich in quartz sand grains.
		The overlying Alamo breccia, in contrast, is relatively undeformed and weathers as a shear cliff ~100 m high.
	www.mines.edu /students/m/mmorgan (1838 words)

	PRR-00708 breccia (Site not responding. Last check: 2007-10-15)
		Marble still dipping E. Some of this rock is included in big breccia bodies abundant in this region.
		Contact of marble with breccia sometimes sharp and straight, sometimes festoonlike.
		On breccia outcrop further along strike to N, many components of brown weathering, green sandstone (this sample).
	www-bprc.mps.ohio-state.edu /rr/samples/exhibit1/e10719a.htm (118 words)

	Field Forum Report
		Breccia: An overview of the Alamo Breccia and of problems of interpretation that were presented as challenges to the attendees appear on the Alamo Breccia Research Page and in Warme and Kuehner (1998).
		Sample topics for investigation included: mechanisms of Breccia emplacement (ejecta curtain, fallout, tsunami, slide, or?); identification and preservation of primary ejecta, matrix and carbonate impact lapilli (“spherules”); formation and preservation of the lapilli; origin of the widespread basal Breccia detachment surface and of mega-clasts over it; possibility for compound origins (e.
		The lack of shattercones suggested that the Breccia localities we visited were distal with respect to the crater, although the wet environment may have subdued shattercone development (Dutch, Gaffney, Ryder).
	www.mines.edu /students/m/mmorgan/field_forum_report.htm (1323 words)

	Breccia Pipes
		A breccia pipe, or chimney, is an irregular cylindrical mass of breccia that is often silicified and stands out as an iron-stained knob.
		The breccia is usually, but not always, composed of altered angular to rounded fragments of the host rock, cemented by silica.
		Some breccia pipes are very clearly the result of solution collapse of limestone or other soluble rock types, and may not have any connection with hydrothermal systems.
	www.icmj2.com /01Dec/Dec01Feature.htm (877 words)

	Lunar Regolith Breccias (Site not responding. Last check: 2007-10-15)
		A regolith breccia is a special case of a fragmental breccia.
		Some regolith breccias are partially melted, but many show little sign of melting, except perhaps at sharp grain boundaries.
		Because the Moon is closer to the sun than the asteroids and because the lunar regolith is thicker than those of asteroids, lunar regolith breccias are much richer in solar-wind implanted gases than are asteroidal regolith breccias.
	epsc.wustl.edu /admin/resources/meteorites/regolith_breccia.html (997 words)

	Alberto Breccia (Site not responding. Last check: 2007-10-15)
		Breccia encara el dibujo con un estilo decididamente experimental recurriendo a diversas técnicas logrando una obra para nada convencional y alejándose definitivamente de lo que se presume como comercial, algo que no es bien recibido por la publicación.
		Breccia se niega a la solicitud de modificar su estilo, lo que sumado al tono contestatario del guión, diferente de la primera versión, provoca el levantamiento de la serie, viéndose Oesterheld obligado a resumir el guión en pocos capítulos.
		Breccia inicia una serie de adaptaciones literarias alejándose de las formas tradicionales y potenciando el lenguaje de la historieta.
	www.historieteca.com.ar /Autores/alberto_breccia.htm (969 words)

	[No title] (Site not responding. Last check: 2007-10-15)
		Four logged coreholes have sampled the Exmore breccia: one near the outer margin of the annular trough (Exmore); one inside the inner basin (Kiptopeke); and two -4 km outside the crater (Newport News and Windmill Point).
		In the case of the Chesapeake Bay impact, the entire 35.5ft and 40-ft (1 0.8 m and 12.2 m) breccia sections sampled outside the crater are matrix-dominated (WB = 2.1 and 5.2).
		Inside the crater, the next deeper section of Exmore breccia [1237-1288 ft (377-392.6 m) at Exmore; 1354-1536 ft (412.7-468.2 m) at Kiptopeke] is boulder-dominated (M/B =0.3 and 0.5, respectively).
	woodshole.er.usgs.gov /bibliographies/current2/565.html (731 words)

	GEOLOGY AND GEOCHEMISTRY OF THE MAMMOTH BRECCIA PIPE, COPPER CREEK MINING DISTRICT, SOUTHEASTERN ARIZONA
		The breccia pipes are confined to the Copper Creek Granodiorite and the Glory Hole volcanic rocks, both of which contain extensive, steeply-dipping ENE-striking fractures that developed during Laramide orogeny.
		The unexposed Mammoth Breccia Pipe was discovered by drilling and has a vertical extent of 915 m and a maximum width of 180 m.
		The breccia pipe consists of angular clasts of granodiorite cemented by quartz, chalcopyrite, bornite, anhydrite, and calcite.
	gsa.confex.com /gsa/2003AM/finalprogram/abstract_65525.htm (362 words)

	Breccia
		The footwall breccia is heterolithic and consists of angular to subrounded fragments derived locally.
		Contacts between the breccia and the overlying Sudbury Igneous Complex are commonly sharp and those with the underlying footwall rocks are gradational.
		Large fragments within the breccia are commonly subrounded to rounded; smaller fragments tend to be angular.
	laurentian.ca /geology/Virtual/breccia.htm (207 words)

	Minerals of Green Ridge Breccia, King County, Washington
		An intrusive breccia is a cylindrical structure that is formed by the violent ascent of volatiles near the top of a shallow intrusion as it cools.
		These high temperature acidic fluids are responsible for the alteration of plagioclase to muscovite and clay within the adjacent granodiorite breccia blocks and for the precipitation of quartz and metallic ore (usually as sulfides) on the walls of the blocks.
		Most intrusive breccia metallic mineral deposits within the Snoqualmie region are currently uneconomic due to poor acccesibility and/or the low tenor of the ore (Cu, Au, Ag), but many mining claims are still active that produce some of the finest quartz and sulfide mineral specimens in the world.
	washingtonminerals.com /grb.htm (430 words)

	Bryantsville Breccia Bed (Site not responding. Last check: 2007-10-15)
		Description: The breccia fragments of the Bryantsville Breccia Bed are angular to subangular consist of dense micritic limestone and partly to wholly oolitic limestone and are bound together by a matrix consisting of calcite, finely divided limestone fragments, oolitic limestone, and, less commonly, chert.
		The breccia occurs in one or more beds and is as much as 12 feet (3.7 m) thick, although in places it is only a few inches thick.
		Other less persistent breccias and other lithologies similar to the Bryantsville are found in the overlying Paoli Limestone and at other horizons in the Ste.
	igs.indiana.edu /geology/structure/compendium/html/comp1hk4.cfm (437 words)

	ORIGIN OF BLUESCHIST BRECCIA, SYROS, GREECE (Site not responding. Last check: 2007-10-15)
		We focus on a breccia that is found along the NNE coast of the island and contains a variety of clast types (including quartz-rich, mica schist and meta-gabbro clasts).
		The breccia is in contact with a coarse-grained metagabbro to the south and pelitic schist and marble to the north.
		We are exploring the origin of the breccia itself and its structural and tectonic relationships to the metagabbro, pelitic schist and marble units.
	gsa.confex.com /gsa/2001NE/finalprogram/abstract_2785.htm (437 words)

Try your search on: Qwika (all wikis)