Piercey et al. Znrich Volcanogenic Massive Sulphide (VMS) Deposits Introduction Volcanogenic massive sulphide (VMS) deposits are comprised of massive (>80 volume percent) sulphide lenses that are commonly polymetallic (e.g., ZnPbCuAuAg) and formed at or near the seafloor from metalbearing hydrothermal fluids that
Ore grades averaged about 3.4 grams per tonne (g/ t), with highergrade zones reported. The Russell deposit is interpreted to be a sedimenthosted, goldrich, basemetal poor, volcanogenic massive sulfide deposit in which gold was remobilized, in part, during Ordovician metamorphism.
Introduction Goldrich volcanogenic massive sulfide (VMS) deposits are important exploration targets as their gold content contrib510 ute significantly to their total value and their polymetallic nature makes them less vulnerable to metal price fluctuations.
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
Copper and goldrich volcanogenic massive sulfide deposit with over 14,000 meters of historical drilling Historical resource estimates include (non 43101 compliant): 2.7M tonnes grading 2.4% copper, 1.4 g/t gold and 13.7 g/t silver in copper zone 1.12M tonnes grading 4.7 g/t gold and .31% copper in gold
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 found worldwide, and often form in clusters, or camps.
Volcanogenic massive sulphide (VMS) deposits are also known as volcanicassociated, volcanichosted, and volcanosedimentaryhosted massive sulphide deposits. They typically occur as lenses of polymetallic massive sulphide that form at or near the seafloor in submarine volcanic environments. They form from metalenriched fluids associated
Volcanogenic massive sulfide deposits contain not only Cu, Zn, and Pb, but Sb, Bi, Te, Se Ag, Co, other metals, and variable amounts of Ag and Au. In some of these, gold reserves exceed 100 t, while
This syngenetic exhalative deposit is unique for the BMC with a high Pb/Zn and elevated Au and Ag contents, as well as an epithermal signature (SbAgAuTlHg), analogous to high sulfidation volcanogenic massive sulfide deposits.
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.
Goldrich volcanogenic massive sulphide deposits. The Whalesback Curich volcanogenic massive sulfide deposit in the Newfoundland Appalachians is a highly deformed deposit found on a
Nov 03, 2014 · Ore deposit is a natural concentration of one or more minerals within the host rock. 🔴 Subscribe: https://bit.ly/2xcAZYW About World Earthquakes: World Earthquakes is a nonprofit, non
Fleetwood ZincCopperSilverGold (Acquisition or Joint Venture Opportunity) Fleetwood is a Inomin owned zinccoppersilvergold Volcanogenic Massive Sulphide (VMS) project loed in southwestern British Columbia. The Fleetwood project is loed at the northern extension of a 6 km by 2 km northwest trending structure hosting extensive Kuroko style zinccoppersilvergold rich VMS
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
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
In Massive sulfide deposits in the Bathurst Mining Camp, New Brunswick and Northern Maine. Economic Geology Monograph 11, p. 303326. McCutcheon, S.R., Walker, J.A., and McClenaghan, S.H., 2001, The geological settings of massive sulfide deposits in the Bathurst Mining Camp: a synthesis. In Current Research 2000. Edited by B.M.W Carroll. New
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.
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
Apr 26, 2017 · Rockcliff Discovers High Grade Volcanogenic Massive Sulphide (VMS) Zone. The Talbot property also hosts the nearby high grade goldrich Talbot copper deposit which was historically identified as two separate high priority geophysical conductive plates. Most large VMS mines in the Flin FlonSnow Lake mining camp are comprised of multiple
The history of mining and metallurgy in Latin America, 1500 BC1600 AD / Robert J. Cathro Volcanogenic massive sulphide deposits of Latin America : Geological setting and potential of volcanogenic massive sulphide deposits in Colombia / Luis Jaramillo Cortes Goldrich VHMS deposits of the Western Cordillera of Ecuador :
The Boliden goldrich volcanogenic massive sulfide fide deposit, Bathurst Mining Camp, Canada: Evidence from deposit, Skellefte District, Sweden: new UPb age constraints bulk ore analysis and laser ablation ICPMS data on sulfide and impliions at deposit and district scale Mineralium phases Mineralium Deposita, v.44, p.523–557.
Québec, with its numerous volcanosedimentary belts of different ages (Abitibi, Appalachians, etc.), displays outstanding potential for base metals, including copper and zinc, notably in terms of deposits of volcanogenic massive sulfide (VMS). In addition to this is the high potential for precious metals such as gold
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
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.
The Company reports the discovery of a high grade Volcanogenic Massive Sulphide (VMS) zone, termed the North Lens Deep Zone ("Zone"), intersected in the last two holes (TB019 and TB020) of the Phase 2 The Talbot property also hosts the nearby high grade goldrich Talbot copper deposit which was
Apr 08, 2019 · Press Release Bayhorse Options Brandywine, Brownfield, Precious MetalsRich Volcanogenic Massive Sulphide Property, British Columbia, Canada
For example, Eskay Creek, a volcanogenic massive sulphide (VMS) deposit, produced 3 million ounces of gold and 160 million ounces of silver from ore with a spectacular grade of 49 g/t gold and 2,406 g/t silver. That deposit was so rich that Barrick transported the
Bayhorse Options Brandywine, Brownfield, Precious MetalsRich Volcanogenic Massive Sulphide Property, British Columbia, Canada. Vancouver, British Columbia(Newsfile Corp. April 8, 2019) Bayhorse Silver Inc (TSXV: ) ("Bayhorse" or the "Company") has, subject to the approval of the TSX Venture Exchange, executed a Letter of Intent (LOI) to enter into an Option Agreement to acquire an
These deposits are also a significant supplier of zinc, lead, gold and silver. Although not the world''s primary source of copper, volcanogenic massive sulfide deposits or VMS, are an important
RECENT discoveries of large and/or precious metalrich (bimodal) volcanogenic massive sulfide deposits (VMS) in accreted arc terranes of Jurassic to Cretaceous age, such as the 83Mt San Nicolas deposit in Mexico (Fig. 1 Johnson et al. 1999, 2000 Danielson, 2000) and the goldrich Eskay Creek
Jul 15, 2010 · Abstract. 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.
Volcanogenic massive sulfide deposits contain variable amounts of gold, from an average production grade of about 1 g/t to more than 10 g/t in some deposits (Fig. 1). They include conventional base metal massive sulfides with accessory gold as well as some deposits in which gold is a primary commodity.