Where results make sense

About us   |   Why use us?   |   Reviews   |   PR   |   Contact us

Topic: Vein (geology)

    Note: these results are not from the primary (high quality) database.

Geology of the Canadian Sites The geology of the Silver Crater Mine site is similar to the geology of the Fission site, and the calcite vein-dike is part of the same group of calcite vein-dikes that dot the countryside near Bancroft. The surface geology is shown in Figure 2 [Photos of the vein-dike in Figures 2a,b]. The surface geology of the mine is shown on Figure 3. www.csun.edu /~vcgeo005/gentry/canada.htm   (3274 words)

Geology of the Canadian Sites The geology of the Silver Crater Mine site is similar to the geology of the Fission site, and the calcite vein-dike is part of the same group of calcite vein-dikes that dot the countryside near Bancroft. The surface geology is shown in Figure 2 [Photos of the vein-dike in Figures 2a,b]. The metavolcanics (the lowermost rock units in the Supergroup) consist of pillow lavas (indicative of underwater extrusion), breccias (fragmented lavas), tuffs and pyroclastics, all of which have been altered to varying degrees by metamorphism. www.csun.edu /~vcgeo005/gentry/canada.htm   (3274 words)

BC Biodiversity Pages - BC Geology BC Geology, Rocks and Minerals of BC, igneous rocks, basalt, fold lines, quartz veins, natural springs, geologic history of BC Above: A small quartz vein embedded in igneous rock, Right: a much larger piece of the quartz vein embedded in igneous rock but this one is still beneath the surface of the water in Chapman Creek, the creekbed there cuts through a large portion of this.  BC then is a land of constant geologic change that has produced a land teeming with unique biological diversity. www.bcbiodiversity.homestead.com /bcgeology.html   (240 words)

Vein - Wikipedia, the free encyclopedia In geology, a vein is a regularly shaped and lengthy occurrence of an ore; a lode. Veins are used medically as points of access to the blood stream, permitting the withdrawal of blood specimens (venipuncture) for testing purposes, and enabling the infusion of fluid, electrolytes, nutrition, and medications. Another special case is portal circulation where the portal vein transports blood rich in products of digestion from the intestines to the liver. en.wikipedia.org /wiki/Vein   (278 words)

Vein - Wikipedia, the free encyclopedia In geology, a vein is a regularly shaped and lengthy occurrence of an In systemic circulation de-oxygenated blood from the capillary blood vessels is taken by veins to the right part of the heart. portal circulation where the portal vein transports blood rich in products of digestion from the en.wikipedia.org /wiki/Vein   (278 words)

Vein - Open Encyclopedia In geology, a vein is a regularly shaped and lengthy occurrence of an ore; a lode. Veins are used medically as access to the blood stream, permitting the withdrawal of blood specimens (venipuncture) for testing purposes, and enabling the infusion of fluid, electrolytes, nutrition, and medications. In biology, a vein is a blood vessel which returns blood from the microvasculature to the heart. open-encyclopedia.com /Vein   (259 words)

Honduras Geology While locally rich gold producing vein deposits may occur, no such deposits of this type were observed nor have any been reported in the region. Deposits of the Mosquitia plains are composed of lithic pebble and cobble clasts in a sandy matrix. This indicates a depositional basin that is younger to the east. www.ig.utexas.edu /research/projects/honduras/wampu.htm   (7188 words)

Skarn References Giuliani, G., Cheilletz, A., and Mechiche, M., 1987, Behaviour of REE during thermal metamorphism and hydrothermal infiltration associated with skarn and vein-type tungsten ore bodies in central Morocco: Chemical Geology, 64, p. Geology and skarn ore mineralization of the Yeonhwa-Ulchin zinc-lead mining district, southeastern Taebaegsan region, Korea. Henricksen, T.A., 1974, Geology and mineral deposits of the Mineral-Iron Mountain District, Washington County, Idaho, and of a metallized zone in western Idaho and eastern Oregon: Unpubl. www.wsu.edu:8080 /~meinert/skarnrefs.html   (7188 words)

Vein - Wikipedia, the free encyclopedia In geology, a vein is a regularly shaped and lengthy occurrence of an ore; a lode. Veins are used medically as points of access to the blood stream, permitting the withdrawal of blood specimens (venipuncture) for testing purposes, and enabling the infusion of fluid, electrolytes, nutrition, and medications. In biology, a vein is a blood vessel which returns blood from the microvasculature to the heart. en.wikipedia.org /wiki/Vein   (278 words)

bib.doc Babcock, R.C., Jr., Ballantyne, G.H., and Phillips, C.H., 1995, Summary of the geology of the Bingham District, Utah, in Pierce, F.W., and Bolm, J.G., eds., Porphyry copper deposits of the American Cordillera: Tucson, Arizona Geological Society Digest 20, p. Riedell, K.B., Jones, B.K., and Cheney, E.S., 1996, Geology, geochemistry, and evolution of the Mazama porphyry copper-molybdenum-gold deposit, Okanogan County, Washington, in Coyner, A.R., and Fahey, P.L., eds., Geology and ore deposits of the American Cordillera: Reno, Geological Society of Nevada Symposium Proceedings, Reno/Sparks, Nevada, April 1995, p. Shaver, S.A., and Jeanne, R.A., 1996, The geology and evolution of the weakly Au-(Cu)-mineralized far eastern side of the Robinson mining district, Ely, Nevada, in Coyner, A.R., and Fahey, P.L., eds., Geology and ore deposits of the American Cordillera: Reno, Geological Society of Nevada, v. geopubs.wr.usgs.gov /open-file/of99-556/bib.doc   (15380 words)

Rocks & Minerals: The Mineralogy, Geology, and Mining History of the Telluride District, San Miguel County, Colorado This effort centered around the reheading of the old Treasury tunnel, with its portal on Red Mountain Pass in Ouray County, to connect with the Black Bear vein in the Telluride district. As previously stated: The key properties lie on the curving vein structure of the Montana-Argentine vein system, bounded on the north by the Sydney-White Cloud group and on the southeast by the Black Bear vein. Rocks and Minerals: The Mineralogy, Geology, and Mining History of the Telluride District, San Miguel County, Colorado www.findarticles.com /p/articles/mi_m0GDX/is_6_75/ai_67151173/pg_9   (1438 words)

Gross Becker, A., and Gross, M.R., 1999, Sigmoidal wall rock fragments: application to the origin, geometry, and kinematics of en échelon vein arrays: Journal of Structural Geology, v. Gutiérrez-Alonso, G., and Gross, M.R., 1999, Structures and mechanisms associated with development of a fold in the Cantabrian Zone thrust belt, NW Spain: Journal of Structural Geology, v. Wilkins, S.J. and Gross, M.R., 2002, Normal fault growth in layered rocks at Split Mountain, Utah: Influence of mechanical stratigraphy on dip linkage, fault restriction and fault scaling: Journal of Structural Geology v. www.fiu.edu /org/geology/Fac-staff/Gross.html   (298 words)

Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations Geology and mineralogy of the Santo Nino Ag-Pb-Zn vein, Fresnillo District, Mexico Energy Citations Database (ECD) Document #6596801 - Geology and mineralogy of the Santo Nino Ag-Pb-Zn vein, Fresnillo District, Mexico The Santo Nino Ag-Pb-Zn vein is the major producer of the Fresnillo District, located 750 km NW of Mexico City.^It is over 2.4 km long, more than 480 m in vertical extent, more than 2.5 m wide overall, and has average grades of >600 gm/t Ag and www.osti.gov /energycitations/product.biblio.jsp?osti_id=6596801   (191 words)

ScienceDaily -- Browse Topics: Science/Earth_Sciences/Geology/Tectonics Tectonic Park - Geological results on the northern Tyrrhenian Basin, especially on the Tuscan and Corsican metamorphic core complexes, in structural geology, metamorphic petrology and Ar/Ar radiochronology. Geochemical and Tectonic Evolution of Arc-Backarc Hydrothermal Systems : Implication for the Origin of Kuroko and Epithermal Vein-Type Mineralizations... Topics include structural geology, tectonics, and geology of granite. www.sciencedaily.com /directory/Science/Earth_Sciences/Geology/Tectonics   (919 words)

Results in Along the same South Dakota vein (no pun intended) is an equally impressive, though more concise, article on the Museum of Geology at the South Dakota School of Mines and Technology. The crystal measures 10 cm in length and is from the collection of the Geology Museum of the South Dakota School of Mines and Technology in Rapid City. Museum of Geology at the South Dakota School of Mines and Technology / Reports www.findarticles.com /p/articles/mi_m0GDX/is_1998_May/ai_53288960   (466 words)

Publications Lee, Y.-J., Wiltschko, D.V., Fault controlled sequential vein dilation: competition between slip and precipitation rates in the Austin Chalk, Texas: in submission, Journal of Structural Geology. Lambert, G. R., Wiltschko, D.V., Lamb, W. and Grossman, E., in prep,Conditions during syntectonic veining in the footwall of the Absaroka thrust fault, Wyoming: evidence against abnormal fluid pressures duringthrusting: Geol. Lee, Y.-J., Wiltschko, D. V., Grossman, E. L., Morse, J. and Lamb, W. Sequential vein growth with fault displacement: an example from the Austin Chalk Formation, Texas. geoweb.tamu.edu /Faculty/Wiltschko/publications/publications.html   (466 words)

OU Geology Publications, 1989-2001: Geology Department, University of Otago, New Zealand 926 Craw, D. and Cook, Y. Retrogressive fluids and vein formation during uplift of the Priestley metamorphic complex, north Victoria Land, Antarctica. Amalgamation of disparate crustal fragments in the Walcott Bay - Foster Glacier area, South Victoria Land, Antarctica. 805 Smillie, R. Suite subdivision and petrological evolution of granitoids from the Taylor Valley and Ferrar Glacier region, south Victoria Land. www.otago.ac.nz /Geology/publications/chron1989-2001.htm   (466 words)

Geology Publications, 1989-2001: Geology Department, University of Otago, New Zealand 926 Craw, D. and Cook, Y. Retrogressive fluids and vein formation during uplift of the Priestley metamorphic complex, north Victoria Land, Antarctica. 1028 Youngson, J.H. and Lee, D.E. Freshwater sponges, algae and diatoms from Early Miocene Maar Crater sediments at Hindon, East Otago. 782 Bishop, D. and Reay, A. A Pseudo Impact Crater at Mason Bay, Stewart Island, New Zealand. www.otago.ac.nz /geology/publications/chron-1989-2001.htm   (466 words)

Geology of the Canadian Sites The geology of the Silver Crater Mine site is similar to the geology of the Fission site, and the calcite vein-dike is part of the same group of calcite vein-dikes that dot the countryside near Bancroft. The Silver Crater and the Fission Mine dikes are not granites at all. The Silver Crater (Basin) Mine is located 12 km west of Bancroft on lot 31, concession XV, Faraday Township (45.031 degrees N latitude; 78.008 degrees W longitude), 3 km north of the settlement of Monck Road (see Figure 1). www.csun.edu /~vcgeo005/gentry/canada.htm   (466 words)

Forest Of Dean - Introduction, Geology etc. FIG 1, THE GEOLOGY OF THE FOREST OF DEAN This vein extends a considerable distance beyond the general line of the coal basin on the Western side of the Forest, and that the outlying portion of the vein is divided by a fault called `The Horse' a tract of barren ground varying in width from 200 to 300 yards. The dip angle in the east of the Forest is steep. www.mike.munro.cwc.net /mining/tony_o/fod_01.htm   (2475 words)

Otago Geology Publications, 2002-: Geology Department, University of Otago, New Zealand If you would like to contact one of the authors whose e-mail address doesn't appear in our department staff or student lists, you may be able to contact them via the Geology Dept Secretary OUGeology@otago.ac.nz 1302 MacKenzie, D J and Craw, D. The mercury content of gold in Mesozoic vein deposits Otago, New Zealand. 1291 Craw, D. Minimising arsenic and mercury mobility with acid rock drainage, Northland, New Zealand. www.otago.ac.nz /geology/publications/chron.htm   (2475 words)

David Byrne - Resume I undertook a PhD at The University of Western Austalia on the structural geology of the Northampton Complex, W.A. and was supervised by Dr L.B. Harris. The project included examining the structural and metamorphic history of the complex, the structural controls on the base metal vein deposits, and assisting with geochronology of the complex undertaken at Curtin University. In Structural Geology in Mining and Exploration, Conference at Kalgoorlie, Western Australia. members.iinet.net.au /~philjons/David.htm   (2475 words)

News & Views - Item [40863]: News Release These properties are considered to contain prospective geology for low sulphidation epithermal vein gold mineralisation similar to that found at Esquel, Cerro Vanguardia and Huevos Verdes gold deposits in Patagonia. In recent times, two of the world's premier low sulphidation epithermal gold vein systems, namely Esquel Gold and Cerro Vanguardia, together with several other smaller occurences have been discovered in the relatively unexplored regions of Patagonia. A detailed appraisal of the Rio Negro, Chubut and Santa Cruz Provinces, using existing information together with state of the art technology for the analysis of regional structures, stratigraphic, alteration and mineral occurrence data, has enabled HPD's personnel to define the most prospective metallogenic districts and belts in these provinces. www.mbendi.co.za /a_sndmsg/news_view.asp?I=40863   (601 words)

:: Romarco Minerals Inc. :: The planned 2004 exploration program will involve a comprehensive approach including mapping the surface and underground geology, logging all available existing drill cores, conducting a widespread systematic soil sampling program, and initiating diamond drilling of bonanza vein targets. Buckskin-National is a volcanic-hosted gold/silver exploration project exhibiting exceptional discovery potential for high grade, bonanza gold and silver vein systems that are geologically analogous to ore deposits at the nearby Ken Snyder Mine (Midas District) and at the Hishikari Mine, Kagoshima Prefecture, Japan. The Technical Report is also available on the Company's website at www.romarco.com. www.romarco.com /main.asp?section=news&page=20040527   (583 words)

STRUCTURAL GEOLOGY Anhydrite and pyrite are the most abundant minerals in the veins and are present from 48 mbsf in Hole 1188A to the bottom of Hole 1188F at 378.50 mbsf. The anhydrite ± pyrite± silica ± magnetite veins are characterized by having alteration halos of clay minerals or silica. The coarse anhydrite in the center of vein Va crystallized in open space, and crystals in vugs within the vein are preferentially aligned vertically, indicating a vertical extension. www-odp.tamu.edu /publications/193_IR/chap_03/c3_5.htm   (3408 words)

Ross Island In all periods at Ross Island mining focused on a copper-rich horizon within the local limestone geology. This bedded deposit is bordered on the eastern side by a vein-type structure (the Blue Hole) containing a rich deposit of copper, lead and zinc ore. The mineralisation at Ross Island also has a significant silver content which may have been extracted in ancient times. Ross Island, on the eastern side of Lough Leane, saw the mining of copper and other metals at different times over the past four thousand years. www.nuigalway.ie /ross_island/ross_island.htm   (301 words)

lkai011805.htm The Golden Wonder has been in production for the past five years, so I can say with a reasonable degree of confidence that I think we’ve got a pretty good handle on the geology. Kye Abraham: LKA International owns a high-grade, gold producing property known as the Golden Wonder Mine which is located near Lake City, CO. The Golden Wonder is a lode-type deposit which is characterized by narrow vein(s) and exceptionally high grades. LKA anticipates increasing its interest in the Golden Wonder by funding further exploration and development to increase the size of the existing production zone. www.ericdavid.com /newsletter/mailer/lkai011805.htm   (1225 words)

Archaean Gold '97 - Literature Collection, Canada Hydrothermal wall-rock alteration and formation of the gold-bearing quartz-fuchsite vein at the Dome mine, Timmins area, Ontario, Canada ; Moritz R P, Crocket J H - 1991, Econ. Geology setting of the NERCO Con Mine and the relationship of gold mineralisation to metamorphism, Yellowknife, NWT ; McDonald D W, Duke N A, Hauser R L - 1993, Explor Mining Geol., v2, pp 139-154. Meter-wide veins and kilometer-wide anomaly: wall-rock alteration at the Campbell Red Lake and Dickenson gold mines, Red Lake District, Ontario ; MacGeehan P J, Sanders T, Hodgson C J - 1982, CIM Bull, v 75, no. 841, pp 90-102. www.portergeo.com.au /tours/archaean97/arcgdm1.asp   (1225 words)

International Millennium Acquires Hilda 30 & La Esperanza Properties, Sonora, Mexico : ArriveNet Press Releases : Industry "There is not as much known about the La Esperanza prospect, the general geology of the area is similar to that of the Hilda 30 property, but locally the main occurrences are Pb-Zn-Ag veins in a heavily weathered quartz diorite intruding into what appears to be intermediate volcanics. The narrow vein systems on the La Esperanza prospect contain significant silver, gold, copper, lead and zinc, and will be evaluated in a Spring 2005 program. Access to the La Esperanza property is from a crossroad 21.5 kilometers closer to Hermisillo than that of the Hilda 30 access road. press.arrivenet.com /industry/article.php/629738.html   (1019 words)

Mojave-Rosamond, Gold Districts of California Excerpt from: Gold Districts of California, by: W.B. Clark, California Department of Conservation, Division of Mines and Geology, Bulletin 193, 1970. Gold was discovered in the Yellow Rover vein on Standard Hill by George Bowers in 1894, and soon afterward other discoveries were made. The gold deposits are associated with the five prominent buttes south of the town of Mojave and west and north of the town of Rosamond. www.museumca.org /goldrush/dist-mojaverosamond.html   (304 words)

Try your search on: Qwika (all wikis)

About us   |   Why use us?   |   Reviews   |   Press   |   Contact us   Copyright © 2005-2007 www.factbites.com Usage implies agreement with terms.