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the gold deposits at majors creek consist of mineralised alteration zones

ore deposit types and their primary expressions - CRC LEME

Skarn deposits. Copper-gold skarns: Browns Creek, Big Cadia, Red Dome. ..... For example, some Au deposits have mineralized alteration zones around distinct.

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History of Mines in the Smiley Creek Area of the Vienna Mining ...

11. Figure 8. Mineralized shear zone in the Pilgrim Mine on Beaver Creek, showing ..... Most of the purer quartz is in bands and lenses elongated parallel to the major .... Shipments from the Mountain King. Year. Ore. (tons). Gold. (oz. ) Silver. (oz. ) Lead ... Alteration adjacent to the veins consists of intense sericitization close.

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Unity Mining: Dargues Gold Mine – Exploration

The Majors Creek Gold Project is located in the highly prospective Lachlan Fold ... 19th century high grade, structurally controlled, primary gold mineralisation was ... fracture controlled lode systems within zones of intense alteration in the host...

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Magmatic-Related Hydrothermal Systems: types of geothermal ...

There is potential for Cu-Au porphyry-style mineralisation to be directly ... ore deposits, but of different types (for example orogenic gold deposits) and are not .... located within the boundary of the tectonic-magmatic structure axial zones (the ..... alteration and associated mineralisation to that of the systems in which seawater...

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Alaska Peninsula - Millrock Resources

Mineralization at the Dry Creek prospect is hosted in hornfelsed sediments intruded by a multiphase dioritic intrusive and consists of both “A” (biot-qtz-py-cp) and “B” ... A broad central potassic alteration zone (> 1 sq km) is exposed at surface, .... To Major Mining Company Concerning Alaska Peninsula Copper-Gold Project,...

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chapter 3. geology and mineralization - arlis

May 9, 2011 ... 3.7.7 Other Mineralized Zones in the Mine Study Area . .... Figure 3-7, Alteration Zones, Geology and Mineralization Mine Study Area. Figure 3-8 ... intervals of porphyry-style gold, copper, and molybdenum .... glaciers blocked the three major drainages of the mine study area (Upper Talarik Creek, North Fork.

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deposit style depends on depth high level porphyrires versus deeper

Vein, disseminated and alluvial: Majors Creek (NSW),. Mineralised ... Carbonate alteration accompanying Au mineralisation may be locally well developed. .... The mineralisation at Timbarra comprises gold disseminated in the roof zone of a.

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Geology of Uranium Deposits - World Nuclear Association

Uranium deposits, information on their geology from the World Nuclear ... Major world deposits include Rössing and Husab (Namibia), Kvanefjeld ... Virtually all the economic copper-uranium mineralisation is hosted by these ... That orebody occurs in a zone of calcium-rich alteration within Proterozoic metamorphic rocks.

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Hydrothermal alteration geochemistry of Nugget gold vein system ...

Abstract Ankeritic alteration zones are associated with gold mineralisation in the Nugget vein system, Shotover valley, .... 1 A, The terranes of the Otago Schist and major gold-bearing vein systems (diamonds), ... zones consist of fault gouge (up to 3 cm thick) and brecciated ..... Craw (1989) in nearby Sawyers Creek veins.

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The Colombian Gold Mining Industry - InfoMine

The Colombian. Gold Mining. Industry. World Gold Analyst Special Report. W. G O L D ..... minerals mining industry. it is a major producer of emeralds .... principal control on alteration and mineralisation at angostura ..... scale alteration zones consist of an inner potassic .... at Guacus creek within the Gramalote property.

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Msc. Thesis Framework - DiVA

mineralisation around Birthday Reef. .... 2B. OROGENIC GOLD DEPOSIT IN NEW ZEALAND. ... 2D. REEFTON GOLD DEPOSITS . .... Proximal alteration zone. ...... were also analysed for their abundance in major oxides and trace elements in ... from host rock alteration consists of arsenopyrite, pyrite, carbonates, chlorite...

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Shallow-level, late-stage gold mineralisation in Sawyers Creek ...

Apr 18, 1988 ... Shallow-level, late-stage gold mineralisation in Sawyers Creek,. Shotover valley ... 0 mine workings quartz-carbonate fracture filling and alteration zone, ... I), a major ... fractures. The reefs consist of a series of parallel and subparallel ... silicified reef material 200 m west of the Crystal mine. since these faults...

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Mineralized veins and breccias of the Cripple Creek District, Colorado

The Cripple Creek district has yielded nearly 21 million troy ounces of gold since its ... The major veins exhibit remarkable vertical continuity, extending to more than ... There is no expansion of the alteration zones in the upper level mine exposures. ... deposits, as exemplified by the Globe Hill area, consist of mineralized...

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gold emplacement and hydrothermal alteration in metabasic ... - RRuff

The ore zones constitute three main structural and lithologic ... The ore minerals consist of pyrrhotite and chalcopyrite, together ... Keywords: gold, quartz veins, sulfide veins, hydrothermal alteration, Mouska mine, Abitibi belt, ... minéralisation sulfureuse que quartzique. ..... In samples where pyrite is a major component.

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Cherry Creek - Viscount Mining

The Cherry Creek claims currently consist of over 400 unpatented and ... One of our project's goals is focused on exploring the extensions of major veins in the district. ... alteration and mineralization characteristic of Carlin-type gold deposits. ... seated gold-silver and base metals deposit in this general mineralized area.

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CET Quarterly News - Centre for Exploration Targeting

The orogenic (and not so orogenic) gold deposits of the. Agnew Gold ... 1), and consists of a moderately tightly folded ... association with a wide range of alteration. Figure 1: ... mineralisation at Crusader, a gold and silver rich system with ... the Scotty Creek sediments by the Waroonga Shear Zone, is .... in major gold camps.

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Cripple Creek and Victor Gold Mine, Colorado Springs - Mining ...

The Cripple Creek and Victor gold mine (CC&V) lies southwest of Colorado Springs in the ... The rocks consist of biotite gneiss, granodiorite, quartz monzonite and granite. ... High-grade gold mineralisation is associated with K-feldspar + pyrite +/- ... alteration zones in the more permeable Cripple Creek Breccia wall rocks.

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Majors creek Quarterly Notes - NSW Resources and Energy

Aug 28, 2014 ... granitoid-related gold mineralisation near Majors Creek,. New South ... mineralisation at the Great Star mine (Majors Creek). ... zones (e.g. Dargues Reef) and quartz-rich base metal– ..... The mineralised lodes define a 2 ppm Au envelope and consist of ... spectra to help identify alteration-related minerals.

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Volcanogenic massive sulfide ore deposit - Wikipedia, the free ...

Volcanogenic massive sulfide ore deposits, also known as VMS ore deposits, are a type of .... The mound zone consists of laminated massive to brecciated pyrite, ... Most VMS deposits show a vertical zonation of gold, with the cooler upper ... The most intense alteration (containing the stringer sulfide zone) is generally...

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Hydrogeochemical processes governing the origin ... - CLU-IN

Jun 17, 2011 ... and trace elements from mine wastes and mineralized rock to surface waters. D. Kirk Nordstrom .... Luoma and Rainbow, 2005, 2008), metals transport in major rivers ... More details on alteration zones and their .... Gold and silver, as the .... excavations that entered a large massive sulfide deposit consisting.

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Carlin-Type Gold Deposits in Nevada: Critical Geologic ...

Carlin-type Au deposits in Nevada have huge Au endowments that have made the state, .... than 5 Moz (155.5 t) gold (squares), and major districts (triangles).

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Controls on Syenite-Hosted Gold Mineralization in the Western ...

Creek deposit is the only syenite-hosted deposit being mined in the Timmins Camp. .... Figure 5.7: Hand sample photos of the alteration in the Rusk Zone. ... Figure 7.6: Major oxide plot across TC695m syenite body. ... Figure 7.27: Dist. of gold across vein-hosted Hwy-144 pyrite (mineralized). .... The stratigraphy consists of.

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pdf_file_(3.7 - Geosciences - University of Arizona

The Cripple Creek gold deposit in central Colorado is hosted by an Oligocene ... sion and description of the styles of mineralization and alteration. ... duced, with activity focused in four major volcanic fields (San ... The diatreme complex consists of an upward ..... the district (e.g., zones of alkali feldspar + specularite alteration.

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Iron Oxide Copper-Gold Deposits: Geology, Space-Time Distribution ...

Many diverse ore systems are classified together as iron oxide copper-gold (IOCG) deposits based on an em- ..... and major types of hydrothermal alteration.

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Serengeti Resources Inc. - Kwanika Property - Wed Aug 24, 2016

The Kwanika Copper-Gold (Cu-Au) deposit was discovered by Serengeti ... Copper mineralization was first recognized along Kwanika Creek in 1964. ... The Kwanika project consists of two porphyry deposits, the Central copper-gold Zone and ... alteration, commonly occurring at the top of the hypogene mineralized zone.

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Arkose-Hosted, Aquifer-Controlled, Epithermal Au-Ag Mineralization ...

The Wenatchee district, site of the Cannon mine, is located on the east flank of the Cascade. Range in ... Epithermal gold mineralization of Eocene age (44 Ma) is hosted ... Arkose-hosted alteration consists of zones of silicification which grade ... stratigraphically highest mineralized aquifer in the district. ... The Eagle Creek.

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ActivEX Limited - Pentland Gold

Major deposits of north east Queensland ... Stanley – Sarah Howson epithermal gold system - mineralisation zones with limited drill testing but ... The Kennedy Province units largely consist of the Deep Water Creek Granophyre and ... Within the diorite, propylitic alteration (silica-chlorite-sericite-epidote) is overprinted by...

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Flint lake Fact SheEt - Metals Creek Resources Corp.

which has seen major new gold discoveries and resource delineation by ... advancement of several significant gold deposits including Treasury ... consists of 25 mining claims and encompasses 3 separate gold ... mineralized zones to aide in drilling these zones ... carbonate alteration and local pyrite mineralization. Surface...

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Sovereign Gold Company Ltd | Rocky River-Uralla Goldfield

May 30, 2016 ... Rocky River-Uralla Goldfield – Historic gold mine ... Gold-bearing mineralisation and alteration over 21m from 77m – 98m including .... Mineralisation consist of a central high-grade gold-bearing vein – expected to be a ... hosts wide mineralised zones analogous to Dargues Reef (Majors Creek Gold Mine,...

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AU-AG-TE VEIN DEPOSITS - U.S. Geological Survey

Deposits consist of native gold and (or) gold-silver telluride minerals in ... alteration associated with disseminated deposits may be widespread within or near ... Vein-type deposits: Cripple Creek, La Plata, Boulder County, and Rosita, Colo.; Horn .... pyrite may also be confined to structural intersections or major shear zones.

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Geologic Overview of the Carlin Trend Gold Deposits

of the mineralized material. Regional Tectonic ... deposits reflects an apparent preexisting zone of crustal weakness that ... Gold deposits on the Carlin trend are hosted in lower Paleozoic .... The silty facies of the Rodeo Creek unit is a receptive host to the upper ..... general alteration progression includes the following major,.

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Models and Exploration Methods for Major Gold Deposit Types.pdf

major gold deposits (>2.5 moz Au) in the last decade but the discovery rates have declined .... alteration. Mineralization can consist of veins and breccia bodies ... Fold hinge zones - Faults or shear zones intersecting iron formation - Some stratiform controls ..... development of well-mineralized terranes (Bierlein et al., 2004).

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Structural controls on hydrothermal alteration and gold–antimony ...

The Hillgrove gold–antimony deposit is hosted in late Palaeozoic, ... Earliest mineralisation formed scheelite-bearing quartz veins, and these were followed by ... showing location of the major Au–Sb vein systems and alteration zones. .... The latter included sections at Hillgrove (Bakers Creek and Swamp Creek gorges; Figs.

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Major's Creek, NSW, Australia — A Devonian epithermal gold deposit

Mineralized veins at Major's Creek consist of preponderant quartz and ... Observed argillic alteration is a consequence of acid leaching above the boiling zone. ... epithermal gold deposits in the adjacent Eden-Yalwal Rift zone is inferred.

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