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Topic: Xenolith

	Xenolith Summary
		A xenolith is a rock fragment embedded in, and distinct in texture and composition from, a surrounding mass of igneous rock.
		Xenoliths may be captured by magma near the surface or deep in the mantle.
		Xenoliths may be engulfed along the margins of a magma chamber, torn loose from the walls of an erupting lava conduit or explosive diatreme, or picked up along the base of a flowing lava on Earth's surface.
	www.bookrags.com /Xenolith (750 words)

	A xenolith Greek foreign rock is a rock...
		A "xenolith" (Greek: "foreign rock") is a rock which becomes enveloped in a larger rock during the latter's development and hardening.
		In geology, the term "xenolith" is almost exclusively used to describe inclusions in igneous rock during its formation and cooling process, but a broad definition could include rock fragments which have become encased in sedimentary rock.
		To be considered a true xenolith, the included rock must be identifiably different from the rock in which it is enveloped; an included rock of similar type is called an "autolith".
	www.geodatabase.de /Xenolith (161 words)

	Geochemie (Site not responding. Last check: 2007-11-05)
		The effect of contact between mantle or cumulate xenoliths and basaltic melts are polycrystalline selvages around the xenolith and diffusion profiles in the xenolith minerals.
		The contact between xenolith olivine and selvage is either sharp or it shows poikilitic crystal growth: fine grained olivine in cpx or cpx-rhoenite matrix or irregular cpx accumulation (Fig.
		The small width of the diffusion zone may be caused by only short residence time between entrainment of the xenolith and eruption in the magma chamber prior the eruption or the zone is only a fragment of a larger compositional gradient being lost by dissolution and mineral reaction processes.
	www.uni-geochem.gwdg.de /index.php?option=content&task=view&id=78&Itemid=119 (1021 words)

	Xenolith: World of Earth Science
		Xenoliths form when rising magma forces its way through channels and cracks, tearing off fragments of their walls and incorporating them into rising magma.
		Xenoliths, which are named from the Greek xeno (foreign) and lith (rock), typically range from sand-grain size to football size.
		If a xenolith is rapidly cooled after capture, its chemistry and mineral structure will change little; if it is partly melted before being finally cooled it will undergo some degree of metamorphosis; and if it is thoroughly melted it will blend with the surrounding magma to produce a hybrid or contaminated igneous rock.
	science.enotes.com /earth-science/xenolith (397 words)

	USGS Geology in the Parks
		A xenolith is a piece of foreign rock enclosed within an igneous rock.
		Xenoliths can be sedimentary, metamorphic, or igneous rocks.
		This xenolith is limestone encased in basalt of the Bonito Lava Flow at Sunset Crater Volcano National Monument.
	geopubs.wr.usgs.gov /docs/usgsnps/rxmin/gxenolith.html (159 words)

	RESULTS
		The fresh xenolith (142421B) is basaltic with a high MgO content (13.4 wt%), not sufficient to apply the term komatiite (Arndt and Nisbet, 1982) despite the similar quench fabric.
		The altered spinifex xenolith (142652D) is significantly depleted in MgO but retains elevated V, Cr, and Ni relative to the fresh rock.
		The flat chondrite-normalized REE pattern of the fresh spinifex xenolith compares closely with other basaltic rocks from the eastern Manus Basin, while the dacite glass shows the higher abundances and the light REE enrichment characteristic of the more fractionated lavas.
	www-odp.tamu.edu /publications/193_SR/212/212_3.htm (1007 words)

	ILSG, 1998
		Sulfur isotopic values of disseminated and lenticular pyrrhotite in the xenolith vary from 12.4 to 17.4 with the variation thought to reflect primary layer to layer differences in the protolith (Fig.
		The opposite relationship was observed in ht xenolith from core B1-127, suggesting that sulfurization of Fe-bearing silicates was not a major process and that Fe/Mg ratios of minerals in the xenolith reflect differences in bulk composition between original sedimentary layers.
		The absence of SiO2 gradients may be related to: 1) relatively rapid melt extraction and movement into the surrounding magma due to buoyancy, 2) homogenization in the magma due to convection, 3) destruction caused by thermal perturbations resulting from later magma pulses.
	www.ocf.berkeley.edu /~tarcuri/ILSG.html (831 words)

	Xenolith (Site not responding. Last check: 2007-11-05)
		Body Power (Living Crystal): Xenolith is a rogue member of an alien race known as the Kutarii.
		Xenolith was a member of the pirate cruiser, 'Jolly Brekekekex Koax Koax', commanded by the frog-like captain, Arkekekax.
		Xenolith killed the incompotent Captain Arkekekax and took his personal escape pod for himself.
	www.paratime.ca /v_and_v/xenolith.html (412 words)

	xenolith - SiteTracer.com (Site not responding. Last check: 2007-11-05)
		A xenolith (Greek: 'foreign rock') is a rock fragment which becomes...
		A xenolith is a rock fragment embedded in, and distinct in texture and...
		Xenolith - Rock fragment or mineral found in igneous rock that is not of igneous origins.
	www.sitetracer.com /search/xenolith (178 words)

	XENOLITH
		"XENOLITH" is generally used as a noun (singular) -- approximately 100.00% of the time.
		"XENOLITH" is used about 3 times out of a sample of 100 million words spoken or written in English.
		Its rank is based on over 700,000 words used in the English language.
	www.websters-online-dictionary.org /definition/english/xe/xenolith.html (391 words)

	Define xenolith - Definition of xenolith from Free-Online-Dictionary.org (Site not responding. Last check: 2007-11-05)
		xenolith n : (geology) a piece of rock of different origin from the igneous rock in which it is embedded
		Thermal regime of Precambrian lithosphere compared with estimates from seismic tomography and xenolith data.
		The Petrogenesis of the Loch Scridain Xenolithic Sill Complex Many of the sheets are highly xenolithic, with a wide variety of crustal xenolith types preserved in...
	www.free-online-dictionary.org /define-xenolith.html (374 words)

	Xenolith Beds (Site not responding. Last check: 2007-11-05)
		Upslope (on private land), the xenoliths form cobble beds, where they clogged the tube, forcing lava onto the surface.
		Most xenoliths formed in a magma chamber 8-17 miles (13-28 km) below sea level.
		Some rare xenoliths are pieces of oceanic crust.
	volcano.und.nodak.edu /vwdocs/Parks/hawaii/Picture8.html (41 words)

	Hualalai
		The A.D. 1800 Kaupulehu flow on Hualalai volcano contains abundant coarse-grained xenoliths of exceptional size and quantity, and many prehistoric vent deposits and flows of this volcano also contain abundant xenoliths.
		A xenolith from the 1800-1801 flow is shown below.
		These pictures show an example of an olivine-clinopyroxene bearing mantle xenolith from the 1800-1801 lava flow of Hualalai.
	www.soest.hawaii.edu /GG/HCV/hualalai.html (961 words)

	Union College Geology Department, Field Trip 403, Stop 1, oriented xenoliths, Northeastern Section Meeting of the ...
		This rock is near the border of the Halifax Pluton, and has numerous metamorphosed sedimentary xenoliths.
		There was no cordierite or altered cordierite seen in the granite part of this thin section.
		This location is in the pluton interior, and this thin section is from near the center of the large xenolith.
	www.union.edu /PUBLIC/GEODEPT/hollocher/hallifax_pluton/thin_sections.htm (614 words)

	Xenolith becomes Barbelith... (plasticbag.org)
		So I changed the name of the weblog from Xenolith to Barbelith yesterday, since it seems to be the most substantially operative part of the site at the moment.
		I still prefer Xenolith as a name for it, but I thought it was too confusing - people were calling the site all kinds of different things.
		According to the age guesser, I am 31.
	www.plasticbag.org /archives/2000/02/xenolith_becomes_barbelith.shtml (227 words)

	Amazon.com: xenolith (Site not responding. Last check: 2007-11-05)
		Rb, Sr and 87Sr/86Sr in Ultrabasic Xenoliths and Host-Rocks, Lashaine volcano, Tanzania (Reprint from Earth and Planetary science Letters, Vol.
		The carbon isotope geochemistry of mantle xenoliths by P. Deines (Oct 2002)
		Limestone Xenoliths in Hills Pond Lamproite, Woodson County, Kansas.: An article from: Transactions of the Kansas Academy of Science by James S. Aber and Susan W. Aber (Jul 28, 2005)
	www.amazon.com /s?ie=UTF8&keywords=xenolith&tag=lexico&index=blended&link_code=qs&page=1 (365 words)

	Norwegian Research At Texas Tech Univesity Geosciences: Kråkfjellet xenolith-rich map
		Detailed geologic map of a part of the Kråkfjellet pluton, central Norway, depicting numerous metasedimentary and metaplutonic xenoliths (from Nordgulen et al., 1989).
		The pluton intrudes a variety of host rock lithologies including pelitic migmatites, quartzo-feldspathic schists and gneisses, carbonate rocks and mafic plutonic rocks (shown in various shades of green and blue).
		Our mapping will focus on the regions adjacent to xenolith swarms as well as in traverses away from the xenolith-rich portions of the pluton towards the north.
	www.gesc.ttu.edu /NOR_research/NOR_Krak_detail_map.html (121 words)

	Petrology Field Trip, 1997 (Site not responding. Last check: 2007-11-05)
		At Alternate Stop 2, small apophyses of porphyritic rhyolite (dark color) into granite indicating timing relations between the two lithologies at this outcrop (the rhyolite is younger than the granite).
		At stop 3: Xenolith of Mt. Scott granite (lower part of otc, greyish color) in Quanah granite.
		Note pegmatic phase of the Quanah just to right of xenolith and dikelet of Quanah cutting the xenolith.
	www.atu.edu /acad/mining/people/misk/phopet97.htm (197 words)

	xenolith - OneLook Dictionary Search
		Tip: Click on the first link on a line below to go directly to a page where "xenolith" is defined.
		xenolith : Compact Oxford English Dictionary [home, info]
		xenolith : The American Heritage® Dictionary of the English Language [home, info]
	www.onelook.com /?w=xenolith&loc=wotd (165 words)

	Xenolith Gold Limited Company Profile - XEN AUSTRALIA Market Size, Market Share and Demand Forecast (Site not responding. Last check: 2007-11-05)
		Xenolith Gold Limited Company Profile - XEN AUSTRALIA Market Size, Market Share and Demand Forecast
		Wright Reports > Company Profile Report > X > Xenolith Gold Limited
		The Group's principal activities are exploring for mining interests and investment in the resource sector companies.
	wrightreports.ecnext.com /coms2/reportdesc_COMPANY_C036G1680 (139 words)

	Geology Dictionary - Xenolith, X-ray Diffraction - GEOLOGY.COM
		A preexisting rock that has been incorporated into magma without melting.
		When the magma crystallizes the preexisting rock fragment is known as a xenolith.
		A plant that can survive in a very dry location or climate.
	geology.com /dictionary/glossary-x.shtml (143 words)

	SearchBuffer.com - Search for xenolith (Site not responding. Last check: 2007-11-05)
		Browse and compare a great selection of xenolith.
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		Check Free Online Encyclopedia for information about xenolith.
	www.searchbuffer.com /words/x/xenolith.html (33 words)

	www.myspace.com/machineapotheosis
		Xenolith's Latest Blog Entry [Subscribe to this Blog]
		It's been along time since you promised that there will be something(:
		9 out of 10 bushytail cats prefer the music of Xenolith.
	www.myspace.com /machineapotheosis (285 words)

	Quasi-Indefatigable Xenolith
		A rock fragment foreign to the igneous mass in which it occurs.
		Therefore, Quasi-Indefatigable Xenolith is, to some degree (quasi-), one which is relentless (indefatigable) in differeing from others (xenolith).
		These definitions are derived from the American Heritage Dictionary.
	quix.us (269 words)

	XENOLITH GOLD LIMITED (XEN) - Boardroom Radio - Putting customers and investors in touch (Site not responding. Last check: 2007-11-05)
		XENOLITH GOLD LIMITED (XEN) - Boardroom Radio - Putting customers and investors in touch
		Keep up to date with our recent events by subscribing to our podcast
		Share price information for XENOLITH GOLD LIMITED (XEN)
	www.brr.com.au /XEN/xenolith-gold-limited (126 words)

	Xenolith Gold Limited Information \| Business.com
		Home > Directory > Industrial Goods & Services > Raw Materials > Mining & Minerals > Metal Ores > Gold > Xenolith Gold Limited
		The Group's principal activity is the exploration of oil, gas, and minerals in areas including Canada, the United States of America, and Mexico.
		The Group also held investment in the resource sector in Queanbeyan.
	www.business.com /directory/industrial_goods_and_services/raw_materials/mining_and_minerals/metal_ores/gold/xenolith_gold_limited (58 words)

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