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gold bearinglimonite gossans

  • Two diamond drills will be assigned to a series of high

    Grab samples from the gossans returned gold values of up to 2 g/t The Hamlo VMS gossans are also defined by coincident VTEM conductors and a gravity high anomaly Terer VMS Target L ocated approximately 2 km south of the Hamlo target and defined by 1 km long gossan outcrops with soil geochemistry anomalies of precious and base metals gravity high anomaly and strong VTEM

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  • Supergene gold enrichment in the Castromil Serra da Quinta

    28.02.2018  The gold found in the gossans studied represent the presence of both primary grains Gold I–II and supergene gold Gold III finer The gold grade distribution in diamond drill intersections obtained as part of Medgold s exploration program at Castromil Serra da Quinta has led to the suggestion that significant gold enrichment is a result of the supergene processes that affected the deposit.

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  • HIGH GRADE SAMPLING RESULTS AT KARIBIB COPPER AND GOLD

    07.09.2021  GOLD PROJECT HIGHLIGHTS mineralisation i.e gossans visible sulphides and copper stained exposures e.g figures 2A 2D The program delineated a prospective Cu Ag ± Au W skarn and vein type system associated with a large early syn tectonic diorite body intruded into meta greywackes mica schists and calc silicates of the Navachab Subgroup The mineralisation styles and

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  • Gossan

    Avrupa Geologists Discover Gold Bearing Polymetallic Gossan Zone at Slivovo Callinex Mines Receives Primary Gold Assays from Gossan Hill Property Gossan is an intensely oxidized weathered or decomposed rock that is found on the upper and exposed part of an ore deposit or mineral vein When gossan is exposed to water and air at the surface the minerals tend to oxidize and liberate their

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  • NEWS STAG St

    The center of the 29 000 hectare Cookie property is approximately 40 kilometers south of Centerra Gold s past producing Kemess copper gold mine and approximately 200 kilometers north of Smithers BC Most of the historical work on the Cookie property has been confined to large gossans on the east side that represent more altered and porphyritic varieties of the intrusive units.

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  • TDG Gold Corp

    19.05.2021  WHITE ROCK BC / ACCESSWIRE / May 19 2021 / TDG Gold Corp TSXV TDG the Company or TDG is pleased to provide an update of the review of the historical exploration work and 2021 plans for its former producing high grade gold silver Mets mining lease TDG s former producing high grade gold silver Baker Shasta and Mets mines are located within the 60 kilometres

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  • Aztec Kootenay JV Outlines New Gold Copper Molybdenum

    04.08.2021  Extensive gold mineralization at California zone 118 soil samples average 0.44 gpt gold over 900 m by 600 m area Purisima Westa mirror image of Purisima East in size and type of gossans altered and mineralized breccias and intrusions in association with gold and copper soil anomalies Jasper 2017 trenching returned skarn/replacement type mineralization up to 0.52

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  • READING PASSAGE 1

    gossans are enriched in gold and some forms of copper including native copper Such supergene enrichments are absent from Antarctica because of unfavourable weathering conditions and their removal by moving ice Therefore any mineral search in Antarctica would need to find the parent ore body directly a very difficult proposition Some scientists have claimed that due to extremely unusual

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  • Prospecting for Gold Mineralization Using Geochemical

    12.09.2020  This study applies a combination of geochemical mineralogical and WorldView 2 WV 2 data for gold prospecting in the Siyah Jangal area southeastern Iran Geochemical and mineralogical studies image processing and field studies were used to identify areas of high potential gold mineralization Elemental concentrations in samples collected from exploration trenches in a well known gold

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  • The discovery and geology of the Galat Sufar ..

    Orca Gold Inc Contact Orca Gold Inc Suite 2000 855 West Georgia St Vancouver BC V6C 3E8 Canada Ph 44 2476 511261 Hugh Stuart hughs namdo Orca Gold Inc Page 116 NewGenGold 2015 Abstract The Block 14 joint venture managed by Orca Gold Inc Orca through its 70 owned subsidiary Meyas Sand Minerals Company Ltd is located in the northern reaches of

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  • Economic geology

    10.01.2017  Gossans can be orebodies in their own right mainly of gold Of course not all supergene limonite haematite masses are connected with valuable ore false gossans The distinction is possible by mineralogical and geochemical investigations Schematic profile of a deeply weathered copper sulphide ore deposit displaying the supergene secondary zonation resulting from redistribution

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  • Clark County Nevada Gold Production Western Mining History

    After several unsuccessful attempts to smelt the ore and recover lead work was abandoned and for the next several decades activity in the district consisted of desultory prospecting of gold bearing iron gossans copper stained gossans and lead veins In the 1890 s the district was reactivated and considerable gold was mined from the Keystone Bass and Clementine properties.

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  • Major Mines Projects

    Active oxidation and leaching of sulphides has produced prominent gossans and extensive copper sulphate precipitates at the surface The Mitchell deposit features many characteristics typical of gold enriched calc alkaline porphyry copper deposits calc alkaline syn mineral intrusions hydrothermal alteration assemblages that include deep potassic peripheral propylitic and extensive shallow

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  • Caerus Mineral Resources signs agreement to acquire Cyprus

    28.06.2021  o Cu sulphide mineralisation beneath the gossans is underexplored o Future evaluation should target VMS type Cu Au sulphide mineralisation already known to extend over a substantial strike length at grades of >1 Cu and 2g/t Au Pano Lefkara Licence Comprises a full suite of mineralisation styles characteristic of a Cyprus type VMS setting High grade surface gold gossan Cu Au

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  • Ore Dump Gold Prospecting Finding Gold in Colorado

    Gossans but most of the gold rich oxidized material was sheared off and/or covered by glaciers or glacial melt down into the gulches This is why the Breck gulch placers were so spectacular and why sulphides occur in situ at the surface all over the district In order to tunnel below the sulphide enrichment zone the miners usually had to tunnel through a significant length of barren

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  • Gossan mineralogy textures and gold enrichment over the

    The lateritic terrain hosts the gold rich gossans of the Igarapé Bahia and Águas Claras gold mines Gold is found in red latosols iron crust gossans and colluvium In order to investigate the

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  • Murchison Copper Gold Project Cyprium Metals Limited

    29.09.2020  Mineralised sulphide gossans were detected as far back as the early 1970s at the Cue Copper Project Subsequent exploration by Westgold Resources and Tectonic Resources from the 1980s to 2007 focused on gold Hollandaire the primary copper orebody at the Cue Copper Project was discovered in 2011 by Silver Lake Resources Musgrave Minerals ASX MGV progressed via an earn

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  • Gossan

    Gossans form by the oxidation of the sulfide minerals in an ore deposit and they thus may be used as clues to the existence of subsurface ore deposits especially if distinctive boxworks are present In addition to hydrous oxides of iron and manganese gold and silver in the native natural nearly pure state and various sulfate carbonate and silicate minerals can occur in gossans The

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  • Bog Ore

    These gossans were used by prospectors as guides to buried ore In addition the oxidation of those sulfide deposits which contained gold often resulted in the concentration of gold in the iron oxide and quartz of the gossans Goldbearing limonite gossans were productively mined in the Shasta County California mining district Similar deposits were mined near Rio Tinto in Spain and Mount

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  • Gold rich sea floor gossans in the Troodos Ophiolite and

    Gold rich sea floor gossans in the Troodos Ophiolite and on the Mid Atlantic Ridge Peter M Herzig Peter M Herzig Rheinisch Westfaelischen Tech Hochsch Aachen Inst Mineral und Lagerstattenlehre Aachen Federal Republic of Germany Search for other works by this author on GSW Google Scholar Mark D Hannington Mark D Hannington Geol Surv Can Canada Search for other works by

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  • Gold in Colorado finding gold

    21.02.2010  Since they have gold sitting adjacent to these gossans some if not all of the gossans are likely gold bearing Colorado is one of the more productive gold states ranking third behind Nevada and California production Historically Colorado produced more than 50 million ounces of gold since the yellow metal was discovered in the 19th century Essentially all gold deposits in the state are

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  • Cover Technologies Aktie A2QEXU CA22289X1033 304A

    Gold Rohstoff 107.364 Valneva Aktie 105.205 Siyata Mobile Aktie 85.436 AMC Entertainment Holdings Registered A Aktie 81.822 InnoCan Pharma Corporation Aktie 66.890 NEL Aktie 55.381

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  • GemHunter s Guide to Gold and Diamonds in Montana gold

    26.02.2010  The combined surface area of these gossans is 400 to 500 mi2 suggesting major gold silver and base metal deposits are likely to be found North of Cook City Montana 25 miles to the north is the Stillwater mine and complex The Stillwater mine is a primary palladium mine with associated values in platinum chromium gold and silver.

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  • GOLD RUSH

    06.01.2020  This morning I m going to talk a little about gossanssomething every gold prospector needs to know about as these are often guides to lode gold and they are constantly overlooked by gold prospectors They are also guides to placer gold simply because if they are gold bearing erosion will tend to release the gold over time and transport the precious metal down slope to a nearby stream As

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  • MINERALOGICAL MAPPING IN THE PART OF A GOLD PROSPECT

    Gossans old workings and mineral stains are the surficial manifestation of mineralisation beneath In recent times Geological Survey of India 1993 2000 Hindustan Zinc limited 1998 2003 Indo Gold Limited 2005 2008 and Mineral Exploration Corporation Limited 2008 has actively explored this area in search of precious yellow metal Advanced remote sensing techniques e.g multi and

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  • PorterGeo Database

    Gold was first discovered in 1892 in the Roc des Cors showing and later in the pyrite arsenopyrite ore of the old Salsigne iron mine Between 1960 and 1981 Salsigne has produced 104 tonnes of Au 249 t of Ag 30 200 t of Cu 1706 t of Bi 397 000 t of As and 454 000 t of sulphuric acid from 1961 to 1991 The gold production of the other deposits in the district has not exceeded a few hundred

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  • Olympic Gold Project

    Olympic Gold Project Summary of Terms In May 2020 Great Western acquired a 4 year option to purchase 48 mining claims in Mineral County Nevada known as the Olympic Gold Project and covering 825 acres The option agreement is with Nevada Select Royalties Inc a unit of Ely Gold Royalties Inc These claims are located approximately 50 miles east of Great Western s existing

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  • Gold metallogeny of Chile an introduction

    01.10.1991  In contrast gossans developed in the upper parts of gold veins in the coastal zone of northern Chile are products of this major supergene event and appear to have undergone additional surficial gold enrichment by chloride brine movement during the last 15 m.y of hyperaridity.The Andean Cordillera of Chile is the world s premier high sulfidation epithermal province During the generation of

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  • Fairview Gold Project

    The Fairview gold project application for tenement E 08/3248 Figure 17 is located on Wyloo cattle station within the Pilbara district of Western Australia approximately 200 km by road south east of the nearest regional town at Onslow and approximately 345 km by road from the major port at Karratha Figure 18 Table 9 Fairview tenement summary Asset Holder State Interest Status 1

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  • OUTCROPPING GOSSANS MAKE ILLAARA PART OF AN

    activities over the Western and Eastern VMS Horizons at the Illaara Gold VMS Project Illaara Assay results returned significant base metal and highly encouraging pathfinder anom alism associated with gossanous ironstones within both prospective VMS horizons Dreadnought Managing Director Dean Tuck commented We have been encouraged by the results of our early stage work along

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  • Gossan mineralogy textures and gold enrichment over the

    These points allowed us to identify that the leached spongy hematite–rich zone in the upper indigenous profile contains the higher fineness gold grades i.e the bonanza level and Bi–minerals such as waylandite and bismutite that may be important pathfinders for high gold grades in these gossan profiles Our results demonstrate that ore prospection in gossans over Au–As–Bi

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  • Geology of Porphyry Copper Deposits

    22.03.2015  The Big Gossans copper gold skarn deposit is the highest grade deposit in the Grasberg area Reserves of 37 000 000 tons at 2.7 copper 1 g per ton gold and 16 g of per ton silver that s about 240 to 250 a ton rock Grasberg and Ertsberg are almost in equator but because there are over 12 000 feet in elevation they receive snow from time to time as even nearby permanent glacier How

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  • May 19th 2021 TDG GOLD CORP.

    19.05.2021  White Rock British Columbia May 19 2021 TDG Gold Corp TSXV TDG The northern gossans remain largely untested with early drilling missing the offset along the N75 fault The A Zone ore body plunges north northeast at an angle of 40 degrees with mineralization generally between 15 m and 40 m with true widths of 25 m although this needs new drill testing to confirm Mets Long

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  • CALLAWA

    Associated elevated gold values indicate a potential porphyry style origin to the copper/gold occurrence Outcropping high grade Cu gossans in the Callawa area appear to be superficially enriched in Cu The minerals observed in an outcrop are largely malachite The air core drilling completed by Montezuma Mining Limited during 2008 did not sufficiently test the depth potential of the surface

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  • Gossans and other weathered mineral outcrops

    Gossans and Other Surface Outcrops for Prospectors Surface indications may be described as Form of ground color outcrop decomposed and detached mineral mineral deposits from springs altered or peculiar vegetation and other similar guides A hard quartz outcrop often stands up like a wall and is traceable for miles The Rainbow silver bearing lode of Butte Montana stood 20 feet above

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  • PV Gold Map

    PV Gold Map Pueblo Viejo District Dominican Republic detailed geologic maps of rock units and structure hydrothermal alteration and mineralization Home PV Mine Maps PV District Maps Publications Stream Sediment Geochem Contact Home Geologic maps of rock units and structure alteration and mineralization gossans and ore deposits infrastructure and metamorphism covering

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  • Polar Bear Project

    The property now hosts two gossans namely the Halls Knoll gossan and the Dundas gossan Geology The deposit lies within the southern section of the Norseman Wiluna Greenstone Belt and across a large major fault boundary that divides the Kalgoorlie Terrane in the west from the Norseman Terrane in the west both of which are historic producers of gold and nickel The boundary known as Zuleika

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  • The use of Landsat 8 OLI image for the delineation of

    Gold mineralization type associated with gossans was discovered in Ariab area through the analysis of Landsat images in the nineties of the last century The main objective of this work is to delineate the gossanic ridges situated NW of Ariab area which may represent prospective targets for gold mineralization This can be achieved by applying the spectral band ratioing techniques on

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  • High Grade Copper in new Huntsman Prospect gossan samples

    Develin Creek Copper Zinc Gold Silver Project High grade copper up to 1.1 Cu in gossans discovered at new Huntsman Prospect Issued Shares Recent field reconnaissance mapping identified new gossans weathered surface expression of sulphides at the Huntsman Prospect and encouraging geology at the Golden Orb Prospect ASX Release 15th May 2015 These prospects were defined by

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