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Topic: Chilcotin Plateau Basalts

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	Roweveg
		The eastern part of the Yukon plateau, bounded on the north and east by the Ogilvie and the Selwyn mountains, respectively, and on the south by the Liard and Stikine plateaus, is somewhat higher and colder than the Section to the west.
		To the south and west it is bounded by highland moss barrens, on the east by the poorer forests of the Avalon peninsula, and on the north by a narrow maritime strip \ differentiated by a contrasting prominence of white spruce.
		The forests of the relatively low-lying land on the northern half of the Nechako plateau are transitional in composition between the montane and the subalpine forests.
	www.mbl.edu /eco42/GIS/Veg/Roweveg.htm (19739 words)

	[No title]
		Basalt interpreted to be mainly of mid- to late Miocene age underlies isolated centres in various parts of the Euchiniko map area.
		The basalt is mostly flat lying and consists of poorly exposed flows and eruptive centres.
		In the Jerryboy Hills the basalt is commonly a breccia with mainly pebble to cobble size clasts in a rusty weathering recessive matrix.
	cordlink.gsc.nrcan.gc.ca /dev_cordlink2000/English/Browse/showTextBody.cfm?desc_id=1764 (4146 words)

	Catalogue of Canadian Volcanoes: Chilcotin Plateau Basalts (Site not responding. Last check: 2007-11-06)
		A zone of small-volume basaltic lava flow eruptions about 150 km inland from and running parallel to the Garibaldi volcanic belt.
		Chilcotin eruptions happened mainly 6-10 million years ago and 2-3 million years ago in the early stages of Garibaldi belt activity.
		The volcano maps show only the Chilcotin eruptions that are Pliocene and younger (younger than 5.3 million years).
	nrcan.gc.ca /gsc/pacific/vancouver/volcanoes/catalogue/12_2_cata_e.php (105 words)

	CVO Website - Canada Volcanoes and Volcanics
		In southwestern British Columbia, the Pemberton and Garibaldi volcanic belts and the Chilcotin Group plateau basalt define an arc-backarc pair related to subduction of the Juan de Fuca and Explorer plates under the continental margin.
		The central segment of the Garibaldi Belt (Souther, 1980) is defined by a group of eight volcanoes on the height of land east of Squamish River, and by remnants of basaltic flows preserved in the adjacent Squamish valley.
		The volcano is dominated by porphyritic andesite to rhyodacite lava and pyroclastic breccias, although several Quaternary basalt flows and breccias occur on the periphery.
	vulcan.wr.usgs.gov /Volcanoes/Canada/description_canadian_volcanics.html (4935 words)

	[No title] (Site not responding. Last check: 2007-11-06)
		Diabasic and basaltic rocks are generally dark grey to fl, and weather rusty brown to dark grey.
		Distinctively fresh vesicular basalt (15-20 percent small vesicles, 1-5 mm in diameter) occurs 1 km to the south of the neck as common subcrop along logging roads.
		Basaltic and diabasic centres related to eruption of Chilcotin Group basalt flows are widespread throughout the Nechako River map area.
	cordlink.gsc.nrcan.gc.ca /dev_cordlink2000/English/Browse/showTextBody.cfm?desc_id=1743 (4122 words)

	Ecosystem Managemenr Research Institute, Y2Y Transboundary Ecoregions
		It is a moderately dissected, wide, uplifted plateau dominated by landslide and fluvial erosion processes in the western portion.
		The western area is composed of Eocene, Miocene, and Oligocene tuffs, siltstones, sandstones with basalts, andesites, and rhyolites.
		Valley bottoms are covered by a parkland of scattered ponderosa pine in a matrix of bluebunch wheat grass and sagebrush and at lowest elevations by sagebrush, bluebunch wheat grass, blue grass and June-grass.
	www.emri.org /Projects/Y2Y_ecoregions.htm (9635 words)

	ABSTRACT: Neogene Chilcotin basalts in south-central British Columbia: geology, ages, and geomorphic history (Site not responding. Last check: 2007-11-06)
		K - Ar whole-rock dates demonstrate that several ages of basalt are represented, from Early Miocene (or even Late Oligocene?) to Early Pleistocene, with particularly abundant eruptions about 14-16, 9-6, and 1-3 Ma ago.
		In places the low-relief surfaces had been incised to depths of 100-200 m and the valleys backfilled with mid or late Cenozoic sediments prior to burial by the basalts.
		The low-relief surfaces throughout the area are believed to have been developed close to a common base level, and regional differences in their present elevation are thus largely a product of post-basalt deformation.
	cgrg.geog.uvic.ca /abstracts/MathewsNeogeneAn1989.html (188 words)

	Eldorado Lost River Gold Mine
		The Miocene sediments are commonly overlain by Miocene plateau basalt flows.
		Associated with the basalt are poorly consolidated tuffs which occur beneath the lowermost and between the some of the succeeding flows.
		Consequently, although the precise age of the basalts is not known, the graels are Tertiary in age.
	www.sunnyokanagan.com /eldoradoranch/gold (5733 words)

	v51b in fm04
		The concordant plateau, isochron and inverse isochron ages, the atmospheric value for the trapped $^{40}$Ar/$^{36}$Ar component, and good MSWD values for the isochrons suggest that 115.8{$\pm$}3.2 Ma (the weighted mean of both the ages) can be considered as the age of crystallization.
		As an example, the low-Ti basalts are characterized by almost the same trace element abundances and compositional trends as basalts from Klyuchevskoi volcano, which belongs to the modern volcanic arc of Kamchatka.
		Basalts of the high-Ti and low-Ti series of the STLIP form two nearly perpendicular trends between the first and second and between the first and third components.
	www.agu.org /cgi-bin/SFgate/SFgate?&listenv=table&multiple=1&range=1&directget=1&application=fm04&database=/data/epubs/wais/indexes/fm04/fm04&maxhits=200&="V51B" (15063 words)

	Day2
		The Thompson Plateau is characterized by sedimentary and volcanic rocks of exotic terranes.
		The "Chilcotin Volcanics" found here are a series of plateau basalts that formed from highly fluid flows of basaltic lava.
		The Thompson Plateau remains in the rainshadow of the Coast Mountains so the semi-arid characteristics that were evident in the Okanagan Highland are prevelant here as well.
	www.msstate.edu /dept/geosciences/CT/TIG/WEBSITES/LOCAL/Summer2003/Stotz_Mark/Day2.html (313 words)

	Ministry of Sustainable Resource Management - Recreation Corridor Management Strategy
		Outcrops of underlying bedrock of volcanic basalts occur occasionally, particularly at rapids, waterfalls and canyons.
		It joints the Chilcotin River in the Chilcotin Plateau Ecosection and continues through the eroded grasslands of the Fraser River Basin Ecosection.
		The corridor lies within the sub-boreal pine, spruce and interior Douglas-fir Biogeoclimatic zones in the Central Chilcotin Ranges Ecosection and the Chilcotin Plateau Ecosections, and the bunchgrass biogeoclimatic zone in the Fraser River Basin Ecosection.
	srmwww.gov.bc.ca /car/planning/cclup/rec_cor.html (11866 words)

	Ecosystem Managemenr Research Institute, Y2Y Transboundary Ecoregions (Site not responding. Last check: 2007-11-06)
		The Yellowstone Plateau was formed from two volcanic episodes.
		Mafic basalts rim the edge of the plateaus.
		Some areas are overlain by up to 1,000 ft (330 m) of multi-flow Miocene basalts.
	www.emri.org /Y2Y_ecoregions.htm (9635 words)

	Ministry of Sustainable Resource Management - Resource Management Division
		The landscape ranges between 1300 to 1600 m in elevation and is generally of low relief or gently rolling upland, with poor surface drainage and numerous lakes.
		Underlying bedrock is comprised of volcanic basalts, and outcrops occur occasionally, particularly at rapids, waterfalls and canyons along the Blackwater River and at Basalt Lake.
		Management strategies for this RMZ are compatible with, and a refinement of, the regional direction provided in the Cariboo Chilcotin Land Use Plan for this area.
	srmwww.gov.bc.ca /rmd/lrmp/vanderhf/2219.htm (2885 words)

	Geochronology of igneous rocks associated with mineralization in central British Columbia (Site not responding. Last check: 2007-11-06)
		The area of interest in central British Columbia is situated mostly within the Interior or Intermontane Plateau and centered approximately along the 54th parallel.
		Eocene flows of the Ootsa Lake Group are extensively exposed in the northern part of the area.
		Lane, R.A. and Schroeter, T.G. (1997): Metallogeny of the Interior Plateau, central British Columbia (parts of 93B, 93C and 93F) in, Interior Plateau Geoscience Project: Summary of Geological, Geochemical and Geophysical Studies, Diakow, L.J., Metcalf, P. and Newell, J.M., Editors, British Columbia Ministry of Employment and Investment, Paper 1997-2, in press.
	www.mdru.ubc.ca /rp/mag/bc.html (2497 words)

	Plumes or Not? III Posters - Volcanology, Geochemistry, Petrology [V]
		Ocean island basalts (OIB) have isotopic and trace element signatures that are considered to originate in subducted mafic oceanic crust.
		Numerous geochemical studies of Hawaiian basaltic lavas have shown that the Hawaiian mantle plume is isotopically heterogeneous.
		Evidence of additional leakage of the plume is found in the Chilcotin flood basalts in BC, the Crescent Terrane volcanics in the Pacific Northwest, and kimberlites, diatremes, and widespread basaltic flows found throughout the NAC.
	www.agu.org /meetings/fm04/fm04-sessions/fm04_V51B.html (19098 words)

	Chilcotin Plateau Basalts -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-11-06)
		Chilcotin Plateau Basalts -- Facts, Info, and Encyclopedia article
		The Chilcotin Plateau Basalts are a north-south range of (A mountain formed by volcanic material) volcanoes in southern (A province in western Canada) British Columbia running parallel to the (Click link for more info and facts about Garibaldi Volcanic Belt) Garibaldi Volcanic Belt.
		The belt includes the volcanoes Alixton Creek, Browns Lake, Crows Bar, Prentice Gulch, Thaddeus Lake, Alkali Lake, Canoe Creek, Dog Creek, Leon Creek, Lambly Creek, Missezula Lake, Nicola (Chester), Quilchena Creek, West Kettle River, Hydraulic Lake, and Lightning Peak.
	www.absoluteastronomy.com /encyclopedia/C/Ch/Chilcotin_Plateau_Basalts.htm (99 words)

	Eldorado Lost River Gold Mine
		Eocene Penticton Group and Miocene Chilcotin Group volcanic and sedimentary rocks cap areas of older rock.
		The gold is pure (850 fine), of a reddish colour, and is found as flattened pellets up to 2 millimetres in size, with some very fine gold reported.
		The lack of conclusive information obtained by the already considerable amount of work done indicates that if the channel is to be proved in cross-section and thoroughly tested, a large-scale programme will have to be undertaken.
	www.sunnyokanagan.com /eldoradoranch/gold/index.html (5733 words)

	Mahood Lake (Site not responding. Last check: 2007-11-06)
		Mahood lake is located in a U-shaped valley between the Quesnel Highlands to the north and the Shuswap Highland to the south.
		The surrounding terrain to the north and south of the lake rises very sharply to an elevation of 70m (230 ft.) to the start of a flat lava plateau of pleistocene basalts.
		Many basalt rock bluffs are found around the lake shore.
	www.bcadventure.com /adventure/explore/cariboo/scariboo/mahood.htm (519 words)

	Enderby Cliffs (Site not responding. Last check: 2007-11-06)
		Volcanic activity some 50 million years ago caused a large lava flow to cover much of the area from south of Kamloops to north of Enderby.
		These highly fluid basaltic lavas spread out over the interior plateau and flowed down any river vallleys or depressions exisiting at the time." In some cases, as with the cliffs, the blanket of lava was 1,000 metres thick.
		The coming of the most recent glaciers some 25,000 years ago represents the last major impact on the cliffs.
	www.enderbymuseum.ca /thepast/geog/cliffs.htm (258 words)

	Encyclopedia: Chilcotin Plateau Basalts (Site not responding. Last check: 2007-11-06)
		People who viewed "Chilcotin Plateau Basalts" also viewed:
		Updated 242 days 14 hours 29 minutes ago.
		The majority of the eruptions in this belt happened either 6-10 million years ago or 2-3 million years ago, although there have been some slightly more recent eruptions (in the Pleistocene).
	www.nationmaster.com /encyclopedia/Chilcotin-Plateau-Basalts (153 words)

	Ref (Site not responding. Last check: 2007-11-06)
		212, Davis, A.S., and Clague, D.A., 1987, Geochemistry, mineralogy, and petrogenesis of basalt from the Gorda Ridge, J.Geophys.Res., 92, 10467-10483,
		210, Hawkins, J.W., and Melchior, J.T., 1985, Petrology of Mariana Trough and Lau Basin basalts, J.Geophys.Res., 90, 11431-11468
		528, Kempton, P.D., Dungan, M.A., and Blanchard, D.P., 1987, Petrology and geochemistry of xenolith-bearing alkalic basalts from the Geronimo Volcanic Field, southeastern Arizona; Evidence for polybaric fractionation and implications for mantle heterogeneity, 0, 347-370, E.M. Morris and J.D. Pasteris, Mantle Metasomatism and Alkaline Magmatism., Geological Society of America Sp.
	www.dem.csiro.au /terrain_studies/aboutus/people/stephen_barnes/roeder_spinels_refs.htm (18422 words)

	Geoscience Canada: Igneous rock associations in Canada 3. Large Igneous Provinces in Canada and adjacent regions: 3 Ga ... (Site not responding. Last check: 2007-11-06)
		Details and full referencing on most events is available in compilations [1] (=Ernst and Buchan 2001) and [2] (=Buchan and Ernst 2004), and Tomlinson and Condie (2001), or in the additional cited references.
		komatiites in Archean greenstone belts P5 Geochemistry: OIB or FOZO signature P6 Accreted oceanic plateaus P7 Link to present-day hotspot BREAKUP LINK B1 Radiating swarm or failed-arm type swarm (Fahrig, 1987) with convergence point near cratonic margin of similar age B2 Linear dyke swarm, parallel to and nearby cratonic margin of similar age.
		This is termed passive margin type swarm by Fahrig (1987) B3 LIP situated nearby cratonic margin of similar age ARC LINK A1 Location in a back-arc setting relative to concurrent orogenic activity.
	www.findarticles.com /p/articles/mi_m0QQS/is_3_31/ai_n6364062/pg_8 (3328 words)

	Chilcotin Plateau Basalts - Information
		Looking For chilcotin plateau basalts - Find chilcotin plateau basalts and more at Lycos Search.
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		See the original editable 'Chilcotin Plateau Basalts' article.
	www.logicjungle.com /wiki/Chilcotin_Plateau_Basalts (176 words)

	Plumes or not? Posters
		During adiabatic decompression, intersection of the garnet pyroxenite solidus at $\sim$ 5 GPa would occur at mantle potential temperatures of $\sim$ 1550$\deg$C. Subsequent melting of peridotite at $\sim$ 4.5 GPa may be restricted by the thick overlying sub-continental lithosphere such that dilution of the garnet-pyroxenite component would be significantly less than in intra-plate oceanic settings.
		Since the Oligocene, volcanic activity in Africa was particularly important in the Horn of Africa where ~ 1 million km3 of continental flood basalts (the Ethiopian CFB) erupted 30 Ma ago in a time interval of 1-2 Ma or less.
		Transitional basalt pillow lavas are an intermediate phase, preceding development of the voluminous tholeiitic subaerial shield and submarine Puna Ridge.
	www.mantleplumes.org /PlumesOrNot/PlumesOrNotPosters.html (11685 words)

	Search MINFILE Database (Site not responding. Last check: 2007-11-06)
		Quartz porphyry dikes are common in the Harper Ranch Group, pegmatitic variations are sometimes associated with mineralization in the Lightning Peak camp.
		Several remnants of Miocene-Pliocene Chilcotin Group plateau basalts are found in the area, including the summit of Lightning Peak.
		The WATERLOO mine occurs in an easterly striking shear zone which dips steeply to the north.
	www.em.gov.bc.ca /cf/minfile/search/search.cfm?minfilno=082ENE017 (880 words)

	columbia (Site not responding. Last check: 2007-11-06)
		Related keywords: agates, amateur science, amateur science resources, bretz floods, columbia basalts, crystals, dinosaurs, earth science, education, evolution, evolutionary history, evolvingearth, evolvingearth.org, evolving earth foundation, extinctions, fossils, fossil w.
		Related keywords: chilcotin, chilcotin bc, chilcotin british columbia, cariboo chilcotin, chilko lake, chilko lake bc, cariboo-chilcotin, cariboo chilcotin bc, cariboo chilcotin british columbia, fishing chilcotin, flyfishing chilcotin, fly-inn chilcotin, fly in chilcotin, snowmobile t.
		Description: The Chilcotin region is on the Interior Plateau of BC, Canada, a beautiful rolling, hilly and wilderness landscape
	www.dackom.com /columbia (1290 words)

	The Devilfinder Search Engine - THADDEUS - CATALOGUE - Finding Stuff Since 1979.
		Catalogue of Canadian Volcanoes, Chilcotin Plateau Basalts, Thaddeus Lake.
		Catalogue des Volcans Canadiens, Plateaux basaltiques Chilcotin, Lac Thaddeus.
		Catalogue of the Members of the Dialectic Society Instituted in the University of...
	www.devilfinder.com /find.php?q=THADDEUS+-+CATALOGUE (4577 words)

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