Rumahgold rich volcanogenic massive sulphide
The BousquetLaRonde goldrich volcanogenic massive
The BousquetLaRonde goldrich volcanogenic massive sulfide complex, Quebec, Canada: discovery, geology and exploration model 2006 Benoît Dubé, Mark D. Hannington, Guy Gosselin, Benoît Lafrance, The first gold occurrences (goldrich VMS and sulfiderich Qz veins) of the Bousquet district loed in the Archean Blake River Group, Abitibi
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Rockcliff Discovers High Grade Volcanogenic Massive
Apr 26, 2017 · The Company reports the discovery of a high grade Volcanogenic Massive Sulphide (VMS) zone, termed the North Lens Deep Zone ("Zone"), intersected in the
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A chemical model for the concentration of gold in
The presence of only one mechanism for gold trans port cannot explain the two associations of gold in volcanogenic massive sulphide deposits. The purpose of this paper is to evaluate possible gold complexes and then to present a model to ac count for the distribution and association of gold in volcanogenic massive sulphide deposits.
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Bisha Mining Home
The Bisha Mine. The Bisha Mine is a large precious and base metalrich volcanogenic massive sulphide (VMS) deposit loed 150km west of Asmara, Eritrea, East Africa. Deposit mineralization consists of gold and silver oxides, in addition to copper and zinc massive sulphides. Learn more
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Gold Deposits of the Carolina Slate Belt, Southeastern
Foley, N.K., and Ayuso, R.A., 2012, Gold deposits of the Carolina Slate Belt, southeastern United States—Age and origin of the major gold producers: U.S. Geological Survey OpenFile Report 2012–1179, 26 p. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
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Quévillon – Osisko
In many cases, gold is present in intervals with base metal grades. The most significant zone is in the Osborne area, where gold, silver, copper and zinc are strongly associated. Volcanogenic massive sulphide (VMS) mineralization has been documented in the western extremity of OsborneBell (BellVMS area).
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MASSIVE SULPHIDE DEPOSITS Earth science
1. VMS Volcanogenic Massive Sulphide Deposits and NiCuCo Type Magmatic Massive Sulphide Deposits Volcanicassociated massive sulphide (VMS) deposits occur throughout the world and throughout the geological time column in virtually every tectonic domain that has submarine volcanic rocks as an important constituent.
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Bisha Mining – A Mining Employer of Choice Careermine
The Bisha Mine is a large precious and base metalrich volcanogenic massive sulphide (VMS) deposit loed 150km west of Asmara, Eritrea, East Africa. Deposit mineralization consists of gold and silver oxides, in addition to copper and zinc massive sulphides.
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GOLD RICH VOLCANOGENIC MASSIVE SULPHIDE
Goldrich volcanogenic massive sulphide deposits (Aurich VMS) form a subtype of both volcanogenic massive sulphide and lodegold deposits. Their diagnostic features are stratabound to discordant, volcanichosted massive sulphide lenses with associated discordant stockwork feeder zones in which average Au grades (in g/t) exceed associated
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Targeted Geoscience Initiative 4: Contributions to the
sive sulphide deposit. Volcanogenic massive sulphide deposits in volcanic belts that formed in pericratonic settings or on older crust basement in the early stages of rifting are commonly slightly better endowed in precious metals than those formed in belts or settings with no or limited basement influence. Goldrich and auriferous VMS are
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Sulfur isotope and trace element data from ore sulfides in
We examine models for volcanogenic massive sulfide (VMS) mineralization in the ~2.7Ga Noranda camp, Abitibi subprovince, Superior Province, Canada, using a combination of multiple sulfur isotope and trace element data from ore sulfide minerals. The Noranda camp is a wellpreserved, VMS depositrich area that is thought to represent a collapsed volcanic caldera. Due to its economic value, the
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volcanogenic strata bound massive sulphides MC World.INC
Volcanogenic massive sulfide ore deposit Wikipedia20191107 Volcanogenic massive sulfide ore deposits, also known as VMS ore deposits, are a type of me. Come with your iron, gold, silver, copper, manganese, tin, etc ore processing project, and back with satisfied plant. Construction Waste Recycling.
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Amex Exploration Inc.: GoldRich Polymetallic Massive
Mar 04, 2013 · MONTREAL, CANADA(Marketwire March 4, 2013) AMEX EXPLORATION INC (TSX VENTURE:AMX) ("The Company") is very pleased to announced the intersection by drilling of two wide zones of polymetallic massive sulfides stringers and veins, that is interpreted to represent a typical feeder zone associated with volcanogenic massive sulphide deposit (VMS) that has been later
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ORE DEPOSITS 101 Part 7 VMS and Sedex YouTube
Jul 07, 2017 · Description
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Why Volcanogenic Massive Sulphide Deposits are Not Good
Volcanogenic massive sulphide deposits ("VMS" deposits) are significant sources of copper, lead, zinc, silver and gold. They can also contain significant quantities of cobalt, tin, selenium, manganese, cadmium, indium, bismuth, tellurium, gallium and germanium.
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The Boliden goldrich volcanogenic massive sulfide deposit
Dubé B, Gosselin P, MercierLangevin P, Hannington M, Galley A (2007) Goldrich volcanogenic massive sulphide deposits. In: Goodfellow WD (ed) Mineral deposits of Canada: a synthesis of major deposittypes, district metallogeny, the evolution of geological provinces, and exploration methods.
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The Boliden goldrich volcanogenic massive sulfide deposit
The new geochronological work provides further constraints on the timing of the ore genesis, strengthening the interpretation of its formation as a synvolcanic (volcanogenic) goldrich massive sulfide deposit, coeval with the formation of the VMS deposits of the Skellefte district.
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ORE DEPOSITS 101 Part 7 VMS and Sedex YouTube
Jul 07, 2017 · Description
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Targeted Geoscience Initiative 4: Contributions to the
sive sulphide deposit. Volcanogenic massive sulphide deposits in volcanic belts that formed in pericratonic settings or on older crust basement in the early stages of rifting are commonly slightly better endowed in precious metals than those formed in belts or settings with no or limited basement influence. Goldrich and auriferous VMS are
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The gold content of volcanogenic massive sulfide deposits
Volcanogenic massive sulfide deposits contain variable amounts of gold, both in terms of average grade and total gold content, with some VMS deposits hosting worldclass gold mines with more than
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Seafloor massive sulfide deposits Wikipedia
Seafloor massive sulfide deposits or SMS deposits, are modern equivalents of ancient volcanogenic massive sulfide ore deposits or VMS deposits. The term has been coined by mineral explorers to differentiate the modern deposit from the ancient. SMS deposits were first recognized during the exploration of the deep oceans and the mid ocean ridge spreading centers in the early 1960s.
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VOLCANOGENIC MASSIVE SULPHIDE DEPOSITS A G. G, M
Volcanogenic Massive Sulphide Deposits 143 ple bimodal definition of "normal" versus "Aurich" VMS deposits (Fig. 3). This originally was intended to identify deposits that are transitional between VMS and epithermal deposits (e.g. Sillitoe et al., 1996) (Fig. 4). Further research has indied a more complex spectrum of conditions for the
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Why Volcanogenic Massive Sulphide Deposits are Not Good
Volcanogenic massive sulphide deposits ("VMS" deposits) are significant sources of copper, lead, zinc, silver and gold. They can also contain significant quantities of cobalt, tin, selenium, manganese, cadmium, indium, bismuth, tellurium, gallium and germanium.
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GOLDRICH VOLCANOGENIC MASSIVE SULPHIDE DEPOSITS
GOLDRICH VOLCANOGENIC MASSIVE SULPHIDE DEPOSITS BENOIT DUBߛ, PATRICE GOSSELIN1, MARK HANNINGTON2 AND ALAN GALLEY2 1Geological Survey of Canada, 880 Chemin SainteFoy, Quebec, G1S 2L2, Canada 2Geological Survey of Canada, 601 Booth Street, Ottawa, Ontario, K1A 0E8, Canada Email: [email protected] Definition Definition of Goldrich Volcanogenic Massive Sulphide
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A chemical model for the concentration of gold in
The presence of only one mechanism for gold trans port cannot explain the two associations of gold in volcanogenic massive sulphide deposits. The purpose of this paper is to evaluate possible gold complexes and then to present a model to ac count for the distribution and association of gold in volcanogenic massive sulphide deposits.
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Bald Mountain (MRDS #10084601) CU, AU, AG, ZN
The Bald Mountain CuZnAuAg volcanogenic massive sulfide deposit occurs in marine metavolcanic rocks of the Ordovician Winterville Formation. Massive sulfides are localized in an unusual bowlshaped depression having a width of about 370 m by 275 m. Footwall rocks are rhyolitic lapilli tuff and underlying pillowed to hyaloclastic basalts.
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The Boliden goldrich volcanogenic massive sulfide deposit
The new geochronological work provides further constraints on the timing of the ore genesis, strengthening the interpretation of its formation as a synvolcanic (volcanogenic) goldrich massive sulfide deposit, coeval with the formation of the VMS deposits of the Skellefte district.
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An Overview of Volcanogenic Massive Sulfide (VMS)
VMS Deposits • Volcanogenic massive sulfide (VMS), volcanichosted massive sulfide (VHMS), volcanic and sedimenthosted massive sulfide (VSHMS), volcanicassociated massive sulfide (VAMS), etc. • Lenses and sheets of massive sulfide that form from seafloor hydrothermal systems where metalrich fluids (black smoke) precipitate on (exhalative) or near the seafloor (subseafloor
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The gold content of volcanogenic massive sulfide deposits
Jul 15, 2010 · Volcanogenic massive sulfide deposits contain variable amounts of gold, both in terms of average grade and total gold content, with some VMS deposits hosting worldclass gold mines with more than 100 t Au. Previous studies have identified goldrich VMS as having an average gold grade, expressed in g/t, exceeding the total abundance of base metals, expressed in wt.%.
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Mining 101: Ep 21. What is a Massive Sulfide? YouTube
Nov 09, 2011 · Louis Lepry, President & CEO of Tintina Resources (TSX.V : TAU) explains what a massive sulfide is. From Wiki:Volcanogenic massive sulfide ore deposits (VMS ) are a type of metal sulfide ore
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Agnico Eagle Mines Limited Operations & Development
The most important regional structure is the CadillacLarder Lake fault zone, loed approximately 2 km south of the LaRonde property. The LaRonde deposit is a goldrich volcanogenic massive sulphide deposit. LaRonde lenses were formed mainly by sulphide precipitation from hydrothermal fluids on the seafloor and by replacement below lenses.
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VOLCANICASSOCIATED MASSIVE SULFIDE DEPOSITS
with shearhosted mesothermal lode gold deposits (Model 36a) and Algomatype banded iron formation (Model 28b). Potential environmental considerations Volcanicassociated massive sulfide deposits are among the most likely of all deposit types to have associated environmental problems, particularly acid mine drainage.
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Bisha Mining – A Mining Employer of Choice Careermine
The Bisha Mine is a large precious and base metalrich volcanogenic massive sulphide (VMS) deposit loed 150km west of Asmara, Eritrea, East Africa. Deposit mineralization consists of gold and silver oxides, in addition to copper and zinc massive sulphides.
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VOLCANICASSOCIATED MASSIVE SULFIDE DEPOSITS
with shearhosted mesothermal lode gold deposits (Model 36a) and Algomatype banded iron formation (Model 28b). Potential environmental considerations Volcanicassociated massive sulfide deposits are among the most likely of all deposit types to have associated environmental problems, particularly acid mine drainage.
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The GoldRich Louvicourt Volcanogenic Massive Sulfide
The GoldRich Louvicourt Volcanogenic Massive Sulfide Deposit, New Brunswick: A Kuroko Analogue in the Bathurst Mining Camp The GoldRich Louvicourt Volcanogenic Massive Sulfide Deposit, New Brunswick: A Kuroko Analogue in the Bathurst Mining Camp. Exploration and Mining Geology Bariterich exhalative pyrite exhibits a moderate Au
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The formation of gold‐rich seafloor sulfide deposits
Once gold‐rich precipitates have formed, the final gold content of the seafloor sulfide deposit may depend on secondary processes that occur at the surface and interior of the mound. At the surface of the deposit, gold present within sulfides can be lost to dissolution by seawater as those sulfides are oxidized [Hannington et al., 1988].
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VMS Deposits ProExMin Prospecting Exploration Minerals
Volcanogenic massive sulfide (VMS) deposits are stratabound and sometimes stratiform lenses of polymetallic massive to semimassive sulfides, sulfidic sediments, disseminated replacement ores, and stockwork sulfidebearing veins that occur in submarine volcanic environments. They form at or near the seafloor by syngenetic precipitation from mainly seawaterderived and metalenriched
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Volcanogenic massive sulfide ore deposit Wikipedia
If we start with VMS Volcanogenic Massive Sulphide Ore Deposits and their Mineralization we see from this image shows some of the sulphide chimneys associated with the model black smoker VMS deposit. VMS will emit black plume of hot water venting from one of the chimneys. You''ll remember this cross section from reads on both porphyry deposits and epithermal, in the case of VMS deposit, we
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Mapping of Volcanogenic Massive Sulphide (VMS)
Volcanogenic Massive Sulphide (VMS) deposits are typical Cyprustype and occur in the in the Oman Ophiolite as clusters of pyritic copperrich mounds with gold bearing gossans. The occurrence of deposits is abundant in Sohar –Shinas region of East AlBatina coast region of the Sultanate of Oman.
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VMS Deposits Foran Mining Corporation
Volcanogenic Massive Sulphide ("VMS") deposits are base metalrich mineral deposits, which can also contain lesser amounts of precious metals. Their ores can be major sources of zinc, copper, and lead, with gold and silver byproducts. VMS deposits are
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