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Topic: Gossan

	The Manila Times Internet Edition \| REGIONS > DENR chief opens Canadian mine’s green dam
		Gossan is a term used to indicate the geologic feature of the ore body where gold and silver are located.
		Sutherland said the gossan tailings dam is part of the big commitment of the TVI to protect the environment it explores.
		The construction of the gossan tailings dam commenced in April 2005 reaching its maximum height of 42 meters on April 2, 2006.
	www.manilatimes.net /national/2006/may/14/yehey/prov/20060514pro3.html (364 words)

	Gossan Resources Limited
		Gossan Resources Limited is engaged in the exploration and development of a well-diversified portfolio of properties hosting gold, platinum group and base metals, as well as the specialty metals - tantalum, lithium, cesium, titanium, vanadium and chromium.
		Gossan also has a large deposit of magnesium-rich dolomite and a silica sand prospect.
		Gossan trades on the TSX Venture Exchange under the symbol GSS and on the Frankfurt-Freiverkehr & the Xetra© Exchanges under the symbol GSR.
	www.gossan.ca (96 words)

	Gold in Gossan - March 2003 Issue
		Gossan is especially obvious at the surface in arid and semi-arid regions, often forming bold outcrops or “iron blowouts.”
		Massive dark brown to fl gossan, sometimes iridescent, is formed by the leaching of pyrite.
		Gossan that forms over a porphyry copper deposit, or a massive sulfide deposit, can be sizable in area.
	www.icmj2.com /03Mar/03MarFeature.htm (718 words)

	Gossan Resources Limited - Gossan News Releases
		The Peterson Block is known to extend westward from Gossan’s ground onto the Galaxy claim where a limited small-core drill program encountered 0.44 metres assaying 3.79% nickel, 0.8gpt platinum, 3.5gpt palladium, 0.16% copper and 0.12% cobalt.
		- Gossan is pleased to announce a proposed non-brokered private placement financing of up to $800,000 comprising the sale of up to 1,600,000 Units, to be sold on a flow-through basis at $0.50 per Unit, subject to regulatory approval and closing.
		Gossan has optioned the 173 hectare Halfway Lake Property, located adjacent to the southeast of the Company’s Angelina Gold Property, 27-km southeast of Bissett, Manitoba.
	www.gossan.ca /en/news/index.php (4319 words)

	A Geological Visit to the Virginia Copper Region - 1859 (Site not responding. Last check: 2007-10-26)
		The iron ore, or gossan, on the Iron Ridge, 5 miles north-east of this place, was first discovered in the year 1786, by the persons who subsequently erected iron works on chestnut creek, with a view to the manufacture of bar iron from it.
		This gossan outcrop is 60 feet wide, and serves to indicate great width in the copper vein, which, on running in the tunnels, was found to be the case.
		The heavy outcrops of gossan existing here had led to their use, in former years, for supplying an iron furnace and forge in their vicinity; but the same objection being had to the metal, that it would not weld, caused them to be abandoned.
	www.ls.net /~newriver/nrv/vacopper.htm (14004 words)

	Gorland 1811 (Site not responding. Last check: 2007-10-26)
		This substance is always considered by the miner as an indication of neighbouring riches; it is technically called gossan, and is denominated kindly, or very kindly, in proportion to the darkness of its hue, and the looseness of its texture.
		In this lode, the red oxyd of copper was accompanied occasionally by vitreous copper ore, fl oxyd of copper, arseniate of copper, arsenical pyrites, quartz, and fluate of lime.
		At this depth one part of the vein consisted only of gossan, and was six feet in width, forty fathoms from which it narrowed to three feet, and was there composed of yellow copper ore and quartz.
	liroconite.britishrocks.com /Locations/Gorland_1811/gorland_1811.html (1044 words)

	Wildrose Resources Ltd. - news releases (Site not responding. Last check: 2007-10-26)
		The main road from the camp to the Koffee bowl was rebuilt and a new road to a gossan on Coffee Creek was constructed.
		The new road to the "Creek gossan" was gravel-surfaced and ditched along most of its 1.5 kilometre length.
		Several areas radiating from the "Creek gossan" were stripped, for a total length of 625 metres, to provide future trenching and road building opportunities when the permafrost thaws.
	www.eastfieldgroup.com /wildrose/nr97-10-14.html (469 words)

	Exploration and Development Highlights 2004 - Business Development - Mineral Resources Division - Manitoba Industry, ...
		Gossan Resources conducted a spring drill program at their Angelina gold property east of Bissett where mainly low grade gold values were encountered.
		Gossan Resources substantially increased the size of their property holdings along the Bird River Sill in the Lac du Bonnet area.
		During the summer of 2004, Gossan Resources carried out a series of reverse circulation test holes on its high-purity silica sand property near Seymourville, on the east shore of the south basin of Lake Winnipeg.
	www.gov.mb.ca /itm/mrd/busdev/exp-dev/index.html (2502 words)

	NMBGMR Home Page (Site not responding. Last check: 2007-10-26)
		The reconstruction of lead-zinc ores from their leached outcrops is a problem fundamental to the discovery of new deposits in areas where climate is favorable to the development of gossan.
		X-ray studies and differential thermal analyses of 159 gossan limonites indicate that geothite is the predominant ferric oxide monohydrate in leached lead-zinc outcrops.
		However, no one gossan color or color pattern was noted as universally diagnostic of the former presence of pyrite, galena, or sphalerite.
	geoinfo.nmt.edu /publications/bulletins/46/home.html (584 words)

	Lac du Bonnet Leader, Lac du Bonnet, MB (Site not responding. Last check: 2007-10-26)
		In a telephone interview from Toronto, Gossan CEO Douglas Reeson told the Leader the new venture with North American Palladium will begin a long process designed to evaluate the viability of the Bird River Property, which is almost 7,000 hectares in size.
		Gossan has been acquiring the property in bits and pieces over the past two years, Reeson said.
		Gossan’s new agreement with North American Palladium is not the first time the company has worked with other mining groups to investigate mineral resources in the province.
	www.lacdubonnetleader.com /story.php?id=150806 (460 words)

	Andrew M. Ross (Site not responding. Last check: 2007-10-26)
		The F'ambeau Deposit is capped by a well-defined gossan, which overlies supergene enriched chalcocite ore. The gossan, which is approximately 6 to 7 meters thick, is a highly siliceous, iron-rich, friable rock unit.
		The upper two gossan lithologies are composed predominately of subrounded, sand-size quartz grains and pisolitic hematite, with volumetrically minor quantities of goethite,jarosite, apatite, native copper, and native gold.
		The gossan is subdivided by color and character into the silica-rich, purple-red and oxide zone.
	www.mines.utah.edu /~wmep/Petersenvit/students/aross.html (329 words)

	Autoclave Alkaline Decomposition and Cyanidation of Jarosite-Beudantite Phases From Rio Tinto Gossan Ores (Site not responding. Last check: 2007-10-26)
		Abstract: Silver in gossan ore tailings from conventional cyanidation is present in arsenical potassium jarosite and beudantite.
		The decomposition of arsenical potassium jarosite between 100-250 °C in saturated lime is characterized by the total solubilization of potassium and the formation of a hydroxyarsenate of iron, lead and calcium.
		Silver can be recovered from gossan ore tailings by alkaline decomposition at 180 °C for 30 minutes and subsequent cyanidation at room temperature.
	pubs.nrc-cnrc.gc.ca /cmq/02942-1.html (281 words)

	Natural ARD
		Gossans have been a target of mineral prospectors throughout human history and there are numerous examples of gossan discovery leading to major economic mining projects.
		Gossan discolouration is sometimes a desired feature such as decorative stone on buildings (Photograph 9) and as part of landscaping (Photograph 10 and 11).
		Gossan and related alteration can be recognized and mapped using satellite image data..This method has been used extensively and successfully by explorationists in locating prospective mineral sites generated from natural acid rock generation and related alteration of rocks - particularly in non-vegetated (arid) terrain.
	technology.infomine.com /enviromine/ard/Introduction/Natural.htm (5716 words)

	North American Palladium Moves Forward With Gossan's Bird River..
		Drilling tested seven of the airborne electromagnetic conductors, identified from the helicopter-borne VTEM "dream catcher" survey flown earlier this year by LDI, along the inferred base of the Bird River Sill.
		Gossan Resources Limited is engaged in mineral exploration in Manitoba and northwestern Ontario.
		Gossan trades on the TSX Venture and the Frankfurt/Freiverkehr & Xetra Exchanges and has 17,493,124 shares outstanding (21,098,124 shares fully diluted).
	www.amex.com /newsDetails/CmnNewsDet.jsp?id=XpressFeed_NewsDetails_1124824077789.html (545 words)

	Gossans: monteras de alteración de yacimientos minerales
		Con este nombre de gossan, también llamados monteras de hierro, se denominan los afloramientos de rocas, que originalmente contenían sulfuros y que han sido sometidas a un proceso de alteración supergénica.
		Los gossan son el resultado de la alteración física y química de las rocas como consecuencia de la acción de los agentes como la lluvia, el viento, la acción solar o las aguas subterráneas.
		Históricamente, los gossan (figura 1) debido al contraste de sus colores, han servido como guía de exploración de diferentes mineralizaciones.
	www.uclm.es /users/higueras/yymm/gossan.htm (1423 words)

	The History of Wheal Gorland. (Site not responding. Last check: 2007-10-26)
		Among this fluate of lime, and sometimes intimately mingled with it, considerable quantities of the yellow copper ore were found, and some arsenical pyrites containing 4 or 5 per cent.
		of copper, though comparitively little of that gossan, which, as will presently be noted, constituted the greater part of the Muttrell Lode; nor was the arseniate of copper discovered in any part of this lode, west of the junction of it with the Muttrell Lode.
		From the depth, of fifty-six fathoms, the search for this mineral was continued for forty fathoms lower, with but little success; bunches of a few tons in weight, and smaller quantities were occasionally discovered, but these became less frequent; so that, at ninety-six fathoms under the adit, the further working of this lode was abandoned.
	www.gorland.com /history.html (982 words)

	Search MINFILE Database (Site not responding. Last check: 2007-10-26)
		The area of the mineralization, which occurs near the headwaters of Gossan Creek, is underlain by dacite which is greenish grey in colour, displays fine to coarse grained equivalents and is pyritic with a marked gossanous appearance.
		In the main gossan zone, near the headwaters of Gossan Creek, pyrite is present predominantly as disseminations and fracture fillings in the felsic intrusive and volcanic rocks.
		At the south end of a small alpine lake that drains into Gossan Creek, is a rusty, malachite-stained, 5 centimetre wide fracture filled with massive pyrite.
	www.em.gov.bc.ca /cf/minfile/search/search.cfm?minfilno=104B++209 (435 words)

	Nevsun ... Exploring and Developing Gold Projects in Africa
		A large gossan outcrop had previously been identified and subsequent work focused on determining the character and extent of this gossanous material.
		Subsequent mapping indicated that the gossan outcrop had dimensions of at least 200m x 150m with a number of smaller gold bearing gossanous outcrops being defined up to 850 meters to the south.
		Subsequent sampling of the gossanous material revealed gold values in 10 grab samples ranging from 0.39 to 30.4 g/t Au (averaging 2.68 g/t Au if the one high assay is reduced to the population average).
	www.nevsun.com /news/nsu03-05.html (856 words)

	Alaska Gold Forum :: Alaska Prospecting Forum :: kpx: Classic Prospector's "Burnbed" and gossan leaching
		Gossan leaching is an indication of iron mineralization.
		The gossan we dicovered should have been trenched or drilled to possibly extend the area and volume of that deposit.
		In the Bonnifield district gossans and gossan leaching is prevalent.
	bb.bbboy.net /alaskagoldforum-viewthread?forum=2&thread=715 (2261 words)

	::.infinex . ventures.::
		Exploration history of the property records relating to exploration activities on the Long Canyon Property date back to 1986 when prospectors discovered gossan, areas of rust covered rock indicating the presence of iron, on the property surface.
		A total of 144 rock samples and 765 soil samples were collected from the Long Canyon Property which covered the area of the main gossan showing.
		Sample results established anomalous levels of lead and zinc, and to a lesser degree copper, silver, gold and barium within or near the gossan.
	www.infinexventures.com /mining/index.cfm?fuseaction=history (421 words)

	GoldSeiten-Forum.de // Das Forum für Gold, Silber, Platin, Palladium und allem rund um Minengesellschaften und ...
		Gossan ist ein guter Wert, halte ich selber.
		Gossan hat sich jetzt niedrig gefangen, wobei das oft auch ohne jede Meldung stattfindet.
		Gossan ist schon ein hartes Stück Brot, auch für gedultige.
	www.goldseiten-forum.de /print.php?threadid=839&page=2 (844 words)

	Investor's Business Daily: Breaking News
		Gossan said it found the results obtained on surface at the Discovery zone were echoed in 2 of 7 diamond drill holes.
		The results of this sampling are still pending and will be used in conjunction with the summer mapping results to define further areas of work and drill targets.
		Gossan Resources Limited is enrolled in Investrend Research affiliate eResearch's professional analyst program, which facilitates independent analysts to provide financial coverage for shareholders and investors in companies that otherwise would have little or no analyst following.
	www.investors.com /breakingnews.asp?journalid=22565359&brk=1 (851 words)

	TVI Pacific Inc. - Exploring for Precious and Base Metals in Asia - Philippines - Canatuan (Site not responding. Last check: 2007-10-26)
		The gossan generally subcrops along the eastern edge of the body, and the base of oxidation seldom exceeds 25 m depth.
		Subsequently, in January 2004 TVI engaged Norwest to prepare a Feasibility Study to demonstrate the economic and technical viability of producing the oxide (gossan) portion of the Canatuan orebody.
		The Gossan Mining Feasibility Study (“GMFS”) for the Canatuan Project, completed in May 2004 by Norwest Corporation (Norwest) was the first feasibility study to focus on the Canatuan Gossan Ore body on a stand-alone basis.
	www.tvipacific.com /philipcanatuan.htm (3595 words)

	THE EVOLUTION OF GOSSANS IN MINERAL EXPLORATION
		Sulphite Neathering and Gossan Formation: Sulphite-oxide profiles; geochemical environment; mechanisms of oxidation; gossans as oxide ore; gossan modification.
		Gossan Mineralogy/Texture: Gossan mineralogy; textural evaluation; replica textures; field diagnosis of texture.
		Gossan Geochemistry: Sorption; geochemical zoning; trace element geochemistry of gossans; principal ore types and their gossans; analytical geochemistry of ironstones.
	www.geocities.com /adimb/english/evolucao.htm (279 words)

	Prendergast K (Site not responding. Last check: 2007-10-26)
		The Big Gossan Cu-Au skarn is hosted by a fault at the contact between the Tertiary New Guinea Limestone Group and the Jurassic-Cretaceous Kembelangan Group.
		Several generations of brecciation in the Big Gossan skarn are associated with infill and alteration by pyroxene, garnet, magnetite, amphibole, and chalcopyrite-pyrite with a Cu-Au-Ag element association, whereas sphalerite, galena and minor pyrite postdate the Cu-Au mineralisation Prendergast et al.
		Although he insisted that the Big Gossan carbonate fault breccias were really solution breccias, after further discussion I decided to disagree with him (the fault breccias contain shear fabric, brittle-crackle features, and no evidence of collapse) but recognise that “solution-processes” were contributory.
	www.aig.asn.au /Bursaries/prendergast_k.htm (2035 words)

	Sub Sahara - (Site not responding. Last check: 2007-10-26)
		The Adi Nefas Gossan area is one of a number of volcanogenic massive-sulfide (VMS) occurrences within the Asmara Project which was drilled by previous operators who described the occurrence to be a typical VMS deposit striking over about a 700 metre length with strong zinc and gold mineralization but relatively low copper values.
		The geophysical anomaly that was the target of this drilling is open along strike to both the north and south and further drilling is planned as soon as possible.
		In addition to drilling at Adi Nefas Gossan, the results of the final 2 drill holes (drilled in August 2004) from the Gupo Gold deposit were received.
	www.subsahara.com.au /pages/asx/2005/16mar2005_asmara_drill_results.htm (591 words)

	Reed Resources (Site not responding. Last check: 2007-10-26)
		Along strike from the Company's tenements lies the Mt.Finnerty West prospect, from which WMC identified a nickel gossan which assayed 1.2% Nickel in a brief program in the 1970's.
		Australian Resources identified a 3x1 km nickel in soil anomaly and found a new gossan which assayed 1.2% Ni.
		This was followed up by a single fence of 3 RAB Holes, one of which hit 4m @ 0.77% Ni.
	www.reedresources.com /mtfinnerty_nickel.asp (153 words)

	Tennyson Property Teuton Resources Corporation TSX Venture Stock Exchange
		The property was staked by Teuton Resources in 1985 to cover a prominent gossan exposed by receding snow and icefields.
		In 1991, chalcopyrite and pyrite were noted in an outcrop of altered feldspar porphyry during prospecting of a zone of ablation at the northwestern edge of the Tennyson gossan.
		East of the gossan on the other side of a prominent fault, an intrusive body outcrops which has been compared by some geologists to the Premier Porphyry.
	www.teuton.com /pf_tennyson.htm (556 words)

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