au ag epithermal

Controls to low sulphidation epithermal AuAg …

Quality low sulphidation epithermal AuAg mineralisation is best developed in settings where many of the following controls are active as: Lithological control occurs mainly as competent or brittle host rocks which develop

MORE INFO

Epithermal Gold for Explorationists | AIG Journal

Epithermal gold (± Cu Ag) deposits form at shallower crustal levels than porphyry CuAu systems, and are primarily distinguished as low and high sulphidation using criteria of varying gangue and ore mineralogy, deposited by the interaction of different ore fluids with host rocks and groundwaters. Low sulphidation deposits are in turn further ...

MORE INFO

Genesis of Middle Miocene Yellowstone hotspotrelated ...

Epithermal deposits with bonanza Au–Ag veins in the northern Great Basin (NGB) are spatially and temporally associated with Middle Miocene bimodal volcanism that was related to a mantle plume that...

MORE INFO

An Overview of Epithermal Gold Deposits | Investing …

An Overview of Epithermal Gold Deposits URL: ... Ag:Au ratios range from 1000. 2) Epithermal deposits, by definition, are near surface deposits, generally forming at depths of < 1 km as stated but are not characerized by replacement but by openspace filling textures though replacement also occurs. The openspacefilling textures reflect their …

MORE INFO

Origin of basalthosted epithermal goldsilver ...

Fire Creek, located in northern Nevada, is host to a low sulfidation, epithermal AuAg deposit that is spatially and temporally associated with midMiocene volcanism.

MORE INFO

Low sulphidation AuAg mineralisation – Geoinsite

Low sulphidation AuAg mineralisation Low sulphidation carbonate basemetal epithermal AuAg mineralisation (as defined by Corbett and Leach, 1998) hosts highest Au contents within ore shoots developed by the coincidence of several factors cited (Corbett, 2013) as:

MORE INFO

Fruta Del Norte, Epithermal Au/Ag Deposit

Studies in ioGAS, Leapfrog and GIS unravel some of the intrinsic geochemical complexity and regional trends associated with the giant Fruta del Norte (FDN) intermediate sulphidation epithermal Au/Ag deposit in Ecuador. Presented at the Society of Economic Geologists meeting in Keystone, Colorado, September 2730, 2014.

MORE INFO

Anatomy of PorphyryRelated Mineralised AuCu …

epithermal CuAuMoAg mineralisation discussed herein (from Corbett, 2008 and modified from Corbett 2002, 2004). Active geothermal systems exploited for the production of electrical energy provide analogies

MORE INFO

EPITHERMAL AUAG DEPOSIT TYPES ResearchGate

Explorationists should be aware that differences between epithermal AuAg deposit types influence responses in exploration to geochemical and geophysical techniques, as well as the economic value of projects. An understanding of the characteristics of these styles can aid in the prioritisation of ...

MORE INFO

Miningstocks: Southern Silver …

8 hours ago· Miningstocks: Southern Silver (TSXV: SSV) Mobilizes Second Drill to Cerro Las Minitas; Targeting AgAu Epithermal Vein Systems

MORE INFO

H Epithermal RELATED INFORMATION

ASSOCIATED DEPOSIT TYPES: Epithermal AuAg low sulphidation , epithermal AuAgCu: high sulphidation , hot spring AuAg , hot spring Hg , solfatara alteration in vents in modern deposits. COMMENTS: In some cases, nearsurface leaching of these alteration zones can produce altered zones containing more than 95% silica. Alunite …

MORE INFO

Peru Portfolio | Auryn Resources Inc.

Huilacollo. The Huilacollo epithermal property is comprised of 2,000 hectares of intense hydrothermal alteration that is consistent with epithermal Au/Ag mineralization over a …

MORE INFO

EPITHERMAL AUAG DEPOSIT TYPES ResearchGate

Explorationists should be aware that differences between epithermal AuAg deposit types influence responses in exploration to geochemical and geophysical techniques, as well as the economic value of projects.

MORE INFO

Epithermal | Mining Geology HQ

Epithermal deposits are important sources of Au and Ag, representing about 30% of total Au metal production per year.

MORE INFO

Field Trips | SEG 2018

This is a geologically dynamic area with highly prospective mining districts for the discovery of CuAuMo porphyry and AuAg epithermal deposits. The field trip will provide the opportunity to visit the central Kamchatka mining district with the Aginskoe and Zolotoe lowsulfidation AuAg deposits and Kirganik CuAu porphyry deposit (a ...

MORE INFO

Structural control and K/Ar dating of the Au–Ag …

Geomaterials / Géomatériaux Structural control and K/Ar dating of the Au–Ag epithermal veins in the Shila Cordillera, southern Peru Daniel Cassarda*, Alain Chauvetb, Laurent Baillya, Fernando Llosac, Juan Rosasc,

MORE INFO

Porphyry, epithermal, and orogenic gold prospectivity …

A recent discovery of low sulfidation epithermal Au–Ag veins at Cerro Negro in the northwestern part of the Deseado Massif delineated resources of Moz Au, and Moz Ag. The deposits are hosted in Late Jurassic volcanic rocks, and are located in both E–W and NWtrending faults, and splays off these faults (Shatwell et al., 2011).

MORE INFO

Miocene and Early Pliocene Epithermal GoldSilver …

Numerous important Miocene and early Pliocene epithermal AuAg deposits are present in the northern Great Basin. Most deposits are spatially and temporally related to two magmatic assemblages: bimodal basalt

MORE INFO

(Au, Ag)Te2 Minerals from Epithermal Gold Deposits in Japan

Histograms of Au/(Au + Ag) ratios for (Au, Ag)Te 2 minerals of epithermal goldtellurium deposits in Japanese Islands. , calaverite; , krennerite; and , sylvanite. Data of Suzaki, Kawazu and Teine are from this study. Data of Date, Kato and Kushikino are from Honma

MORE INFO

Geology: epithermal deposits Blogger

Most epithermal ("shallow heat") ... but the majority of epithermal deposits are characterized by open space filling textures ... Au, AuAg, Ag, Pb, Zn, Cu, Sn, ...

MORE INFO

El Manuel – Au Ag New Dawn Resources Inc.

El Manuel – Au Ag. ... Geology exhibits features typical of a shallowly eroded, volcanic hosted, lowsulphidation epithermal AuAg mineral system. Berg’s Prospect

MORE INFO

Evolving Exploration

AuAg epithermal vein . Location: Sonora, Mexico . Size: 57 km. 2. Status: Optioned to Coeur Mining Inc. Stage: Geological Mapping and Prospecting for Drilling .

MORE INFO

WORLD GOLD PACIFIC RIM EPITHERMAL AuAg

to carbonatebase metal Au and then epithermal quartz Au + Ag through time and space. Epithermal quartz Au + Ag (modified from epithermal quartz AuAg in Corbett and Leach, 1998) mineralisation is characterised by ganguepoor, high fineness, high to locally bonanza grade, free Au,

MORE INFO

Porphyryepithermal mineral system Geoscience Australia

In addition to the major porphyry CuAu deposits, the Macquarie Arc also contains adulariasericite AuAg and pyrophyllitekaolinite AuCu epithermal deposits at Lake Cowal and Cargo, and at Peak Hill and Gidginbung, respectively (Cooke et al., 2007; Champion et al., 2009).

MORE INFO