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polymetallic vein and replacement deposits

Lewis Ponds, a hybrid carbonate and volcanic-hosted polymetallic ...

Agnew, MW and Large, RR and Bull, SW, Lewis Ponds, a hybrid carbonate and volcanic-hosted polymetallic massive sulphide deposit, New South Wales, Australia, Mineralium Deposita, 39, (8) pp. 822-844. ISSN 0026-4598 (2005) [Refereed Article]

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ORE DEPOSIT TYPES AND THEIR PRIMARY EXPRESSIONS K.G. McQueen CRC LEME ...

Deposit form and geometry can vary greatly but, in many cases, these features also reflect the nature of the ore-forming process. Thus, hydrothermal deposits show forms related to the geometry of the fluid channelways (e.g., veins or stockworks along fractures). Syngenetic deposits are commonly stratabound (i.e., confined to a particular

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EMX Acquires Mo-i-Rana Polymetallic VMS District in Norway - Yahoo!

VMS style polymetallic deposits are developed in the Rana-Hemmes metallogenic region of Norway, which is also host to the prolific Rana Gruber iron mines as well as the nearby Bleikvassli...

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Saïd Ilmen - Assistant Professor of Economic Geology - Faculté ...

The recently discovered shear zone, ~200-m long, NW-SE trending, so-called Talat n'Imjjad vein system of Cu-Au-Bi-Te-Se mineralization that crosscuts the Al Medinet quartz diorite, represents a landmark in regional metallogeny. This region has long been known for its polymetallic ore deposits, with.

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Thermal water deposition and Ph-Zn barite deposits in the ... - DeepDyve

Stratiform barite deposits (SB) and vein Pb-Zn barite deposits (VB) are known in a rift basin in central Guangxi. The former is hosted in the Upper Devonian chert beds and the latter occurs in the Middle and Lower Devonian neritic sediments. The two types of mineralization are believed to have a common origin as evidenced by the following observations: (1) Spatially, they are closely ...

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University of British Columbia

GEOLOGY AND GENESIS OF THE WOLVERINE POLYMETALLIC VOLCANIC ROCK-HOSTED MASSIVE SULPHIDE (VHMS) DEPOSIT, FINLAYSON LAKE DISTRICT, YUKON, CANADA by GEOFFREY DAVID BRADSHAW B.Sc, The

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Mineral Deposit Data for Epigenetic Base- and Precious-metal and ...

A majority of these base- and precious-metal vein deposits are classified as polymetallic veins (PMV) and polymetallic carbonate-replacement (PMR) deposits in this compilation. Porphyry Cu and Mo, epithermal (Au, Ag, Hg and Sb), base- and precious-metal and W skarn, W vein, and U and Th vein deposits are also common in this area.

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Hermosa Project, Arizona, USA - Mining Technology

The Hermosa project is a polymetallic mine proposed to be developed in Arizona, US, by Australian-based mining company South32. The mine was acquired by South32 through the acquisition of mineral exploration firm Arizona Mining in August 2018. The Hermosa project will involve the development of the Taylor zinc-lead-silver sulphide deposit and ...

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Porphyry Gold Deposits, - University of Utah

Secondary inclusions record temperatures between 250 and 350°C (5-13 wt.% NaCl). Primary inclusions in rare, vein quartz yield T=250-350°C, 5-9 wt.% NaCl. Primary inclusions in sphalerite yield T=200-300°C, 7-15 wt.% NaCl with secondary inclusions yielding T=150-225°C, 7 wt.% NaCl.

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Mineralization Styles & Metal Zonation in Polymetallic Epithermal Systems

hosting many Au Ag epithermal deposits • Modern deposit discoveries of 0.5 Moz to 5.0 Moz gold ... Replacement. Water table SiO 2 flooding (thermal bulge) SiO 2 kaolinite +/-dickite. kaolinite+/-alunite kaolinite. ... Ag crustiform polymetallic veins - Early cubic pyrite. Galena, Fe poor sphalerite,

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Eagle Plains Resources - K9 Project - Polymetallic Vein

The K9 property is currently available for option. Updated January 16, 2019. The 4,087 ha K9 Property is located 37 km west of Kimberley, in SE British Columbia. Staked in 1996 as a result of in-house research, the claims contain highly prospective targets for polymetallic veining and sulphide replacement zones based on the favorable geologic ...

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Geology and Evolution of The Copper Flat Porphyry System, Sierra County ...

Past production has been predominantly from the polymetallic veins and placer gold deposits, although minor past production has occurred from the porphyry copper and carbonate-hosted Pb-Zn and Ag-Mn replacement deposits. ... Bi, Mn, and V relative to the vein and replacement deposits (McLemore et al., 1999). LARAMIDE POLYMETALLIC VEINS ...

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New High Grade Veins and Manto Data Boosts Riqueza - ASX

mineralised veins and mantos occurring at Humaspunco (Figures 2 & 3). It is particularly relevant to the Polymetallic Replacement Deposit model the Company is applying at Riqueza. Polymetallic Replacement deposits characteristically comprise mineralised veins and dykes, mantos and a feeder zone (or zones). All such

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Beuchat, S. (2003) Geochronological, structural, isotopes and ... - UNIGE

Cu-porphyries, Zn-Pb skarns, Zn-Pb±Ag carbonate replacement deposits, and veins. In the south, only polymetallic carbonate replacements and veins are associated to the Chumpe intrusion. U-Pb dating of zircons from the northern intrusions gives concordant ages of 14.11 ± 0.04 Ma

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Gold-bearing Polymetallic Veins and Replacement Deposits, Part Ii ...

GOLD-BEARING POLYMETALLIC VEINS AND REPLACEMENT DEPOSITS, PART II: GEOLOGICAL SURVEY BULLETIN 1857-F by Shawe, Daniel R., Roger P. Ashley, and L.M.H. Carter, editors. Hal T. Morris, Frederick S.... Skip to content Sign In Register Help You have items in your cart. Toggle book search form. Select type of book search you would like to make.

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Structural Controls on Porphyry Au-Cu and Au-Rich Polymetallic ...

The objectives of this study are to (1) define the struc- tural architecture and deformation history of the district, (2) characterize the style, timing, and significance of faulting, and (3) identify the major structural controls that focused poly- metallic carbonate replacement and porphyry Au-Cu systems within the Kassandra mining district.

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Metallogenic Mineral Provinces and World Class Ore Deposits in Europe

More than 1000 polymetallic ore veins run through the crystalline basement in two roughly perpendicular systems, which are filled with a variety of sulphides, sulphosalts and native silver. The famous ore deposits of Jáchymov (Joachimsthal) show a similar mineral wealth. About 180 mineralised veins in micaschist and phyllite around a granite ...

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Time-domain electromagnetic signatures of polymetallic vein deposits in ...

This report tests the usefulness of airborne time-domain electromagnetic (TEM) data on three mineral-resource-related issues: (1) to test whether known mineral deposits at or near the surface display any signal in the TEM data; 2) determine whether TEM data can be used to locate bedrock concealed by basin fill; and (3) if the exposed mineral deposits display a signal in the TEM data, to determine

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20-16 - Espiritu trench at Bramaderos Au-Cu Project (Ecuador) exposes ...

Polymetallic gold-silver deposits are a class of epithermal to mesothermal vein deposits and replacement bodies which typically occur around the margins of porphyry gold-copper deposits. They are structurally controlled, display a range of gold-silver-lead-zinc-copper ratios and can occur over many kilometres around large porphyry systems.

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Patterns of distal alteration zonation around Antamina Cu-Zn skarn and ...

Two areas were selected for this study: the large Cu-Zn Antamina skarn and the Ag-base metal Uchucchacua vein deposits in the Peruvian Central Andes as these deposits represent the end-members of the polymetallic carbonate rock-hosted deposits and hence, provide an excellent opportunity to examine the margins and upper sections of these ...

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The Poopó Polymetallic Epithermal Deposit, Bolivia: Mineralogy, Genetic ...

mineralisation. Ancillary veins around the main one show the same essential strike but milder deformation and less vertical dipping. The mineralogy of veins is ever dominated by quartz. Most veins show cataclastic brecciation that was associated with faulting activity, and breccia fragments were cemented by later hydrothermal mineralisation.

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EXPLORATION POTENTIAL for Ag-Pb-Zn-Cu POLYMETALLIC VEIN and MANTO ... - Gov

Ag-Pb-Zn-Cu POLYMETALLIC VEIN and MANTO-TYPE REPLACEMEN DEPOSITT S in the TATLER GROU PROPERTP Y NTS 82K/8W Golden Mining Division, B.C. April 19, 1990 Ken Hicks BSc, FGAC . ... to say that elements o polymetallif c vein and manto-type replacement deposits are evident.

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Intrepid Metals Corp - Tombstone

75km Northeast of the Taylor Deposit (100Mt at 8% lead-zinc), which was bought for US$1.3B in 2018 Target Concept The main Tombstone District is famous as a host for high-grade silver / lead / zinc replacement bodies, fissures and veins that have yielded a historic production (1880's to 1930's) of over 30 million ounces of silver.

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METALLIC ORE DEPOSITS OF MONTANA - Montana Technological University

of Montana host many lode gold and polymetallic vein deposits, in many cases it is not known whether miner- ... in the Precambrian or, more likely, during Cretaceous-Tertiary hydrothermal activity. An exception is the Au-W vein deposits of the Jardine district (Reed, 1950; Smith, 1996). ... and (2) replacement bodies rich in arsenopyrite (± ...

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National mineral assessment tract GB16 (Polymetallic replacement) - USGS

Other than the Bingham Canyon porphyry copper deposit, polymetallic replacement (and associated vein deposits) comprise by far the most important type of metallic mineral deposits in Utah. Major districts are all in the north-central area of the permissive tract and are Park City, Little and Big Cottonwood, Bingham Canyon (Lark and U.S. mines ...

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Porphyry tungsten-molybdenum orebodies, polymetallic veins and ...

They consist mainly of chlorite, abundant fluorite, and complex assemblages of disseminated to massive sulfide and oxide minerals. Some cassiterite-rich, relatively sulfide-poor zones occur also within greisen-altered granite porphyry. The relationship of these zones to the polymetallic veins and replacement bodies is not clear.

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Polymetallic Highway-Reward Deposit. Exploration History,Geology and ...

The deposit comprises two main discordant pyrite-chalcopyrite pipes: Highway and Reward. Reward is a "blind" orebody and was discovered in 1987 after a long history of exploration by various companies in the area. The Highway pipe was discovered in 1990 and is located approximately 200 m NNW of the Reward orebody beneath the abandoned ...

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Gold-bearing Polymetallic Veins and Replacement Deposits

Gold-bearing Polymetallic Veins and Replacement Deposits, Issue 1857, Part 2. James Jennings Norton. U.S. Government Office, 1989 - Gold ores. 0 Reviews .

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PROCEEDINGS - Clementine Montana

polymetallic vein deposits and Butte-type veins and replacement bodies, and grouped them into a deposit class in porphyry copper systems. Preparing for 21st Century Mining Methods and Implications for Exploration Strategy Concurrent with the shift to deeper exploration, there has been an evolution of mass mining technology

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CiteSeerX — IOCG Deposit Types Definition

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Iron oxide copper-gold (IOCG) deposits encompass a wide spectrum of sulphide-deficient low-Ti magnetite and/or hematite ore bodies of hydrothermal origin where breccias, veins, disseminations and massive lenses with polymetallic enrichments (Cu, Au, Ag, U, REE, Bi, Co, Nb, P) are genet-ically associated with, but ...

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Cordilleran or Butte-type veins and replacement bodies as a deposit ...

Cordilleran or Butte type polymetallic mineralization in a porphyry-related setting is known in numerous districts. Most of it is largely epithermal, is found in the upper part of the systems, cuts earlier veins with potassic and phyllic alteration assemblages, and occurs as veins, massive replacement bodies, and sulfide-cemented breccias

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The geological setting of the indium-rich Baal Gammon and Isabel Sn-Cu ...

Tin was discovered in the HMF in 1875, and mining began around 1880 (Dash et al., 1991).By 1971, most mining companies in the HMF were exploring for polymetallic systems containing Zn, Pb, W, Au, Bi, Cu, Ag, In, and Cd (Kositcin et al., 2009, Clarke and Chang, 2017).These polymetallic deposits are associated with microgranites, pegmatite veins, greisen, skarn, volcanic rocks, and meta-basalt ...

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Nova Minerals Ltd discovers extensive polymetallic vein system at ...

Nova Minerals discovers extensive polymetallic vein system at flagship Estelle Gold Project at a separate target to expanding 4.7-million-ounce Korbel deposit Whilst developing and expanding its current 4.7-million-ounce Korbel deposit and in line with its plans of unlocking the district, Nova plans geophysical programs to better define the ...

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Gypsum from Iron Vein, Old Placers District, Santa Fe County, New ...

Report (issue) Tracts permissive for the occurrence of polymetallic vein and flat-fault gold deposits IV PREFACE This... ideas concerning the potential for the discovery of new deposits. In addition, recommendations were made... not address the part of the Nogales quadrangle in Mexico... not address the part of the Nogales quadrangle in Mexico

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Porphyry-related polymetallic Au-Ag vein deposit in the Central City ...

The Lihir (also known as Ladolam) Au deposit in Papua New Guinea is a telescoped ore deposit, in which volcanic sector collapse (s) led to superimposition of shallow-level Au-rich epithermal. 55 The Bingham Canyon Porphyry Cu-Mo-Au Deposit. I. Sequence of Intrusions, Vein Formation, and Sulfide Deposition P. Redmond, M. Einaudi Geology 2010

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Constraints on scheelite genesis at the Dabaoshan stratabound ...

1 1 Revision 1 2 3 Constraints on scheelite genesis at the Dabaoshan stratabound 4 polymetallic deposit, South China 5 6 SHI-QIANG SU1,2,3,4, KE-ZHANG QIN1,2,3,*, GUANG-MING LI1,2,3, ROSS R. 7 LARGE4, PAUL OLIN4, AND NOREEN J. EVANS5 8 9 1Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese 10 Academy of Sciences, Beijing 100029, China

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grade control in vein type gold deposits

Read on for a brief overview of epithermal gold deposits,, Nearly any rock type may host epithermal gold deposits, veins in these deposits tend not to. Get Price. Ore, in the rock to determine what ore can be processed and what ore is of too low a grade to be worth mining, type gold deposits,, stockwork vein deposits;. ...

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Minerals | Special Issue : Mineralogy, Geochemistry and ... - MDPI

this special issue will focus on recent advances in w-sn polymetallic deposits, including but not limited to topics such as magma sources and evolutionary processes of mineralization-related granites, in-situ analysis of w- and sn-bearing minerals, fluid exsolution and mineral precipitation processes, and geochemistry/geochronology of typical .

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Small Scale Fluorspar Processing: the Next Generation

• Mineralisation types can be mixed within one deposit (i.e vein-type and replacement) • Two examples of typical VEIN-TYPE fluorite ore deposits are given and compared:-- Polymetallic Fluorite Veins - Siliceous Fluorite Veins • Other types of Fluorite deposit include:-- Massive domes, skarns, karsts, or pipe-like deposits frequently ...

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PorterGeo Database - Ore Deposit Description

Apart from the Toromocho porphyry-skarn deposit, epithermal polymetallic veins and replacement ore bodies are economically the most important polymetallic ore body types in the district. In total, there are 20 significant veins that have been mined sporadically for >100 years in the Morococha mining district.

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