au ag epithermal

Te

N2 - Au-Ag-Te-Se-bearing epithermal mineralization at Prasolovskoye occurs along fault zones developed within a circular intrusive zone in Miocene to Quaternary age volcanic rocks. The ores show complex textures and mineralogy and can be divided into three stages based on tectonic fracturing and mineral associations: pyrite (I), polymetallic (II), and gold-silver (III). Get price

Comparison of Smectite–Corrensite–Chlorite Series

2020/4/13Epithermal Au–Ag deposits Di- and trioctahedral smectite Corrensite Interstratified chlorite/corrensite Chlorite Epithermal systems Access options Buy single article Instant access to the full article PDF. US$ 39.95 Price includes VAT for USA Subscribe to journal Get price

The Miwah high–sulphidation epithermal Au–Ag deposit,

2020/8/1Miwah is the first drill-delineated high-sulphidation (acid–sulphate) epithermal Au–Ag deposit in the mineral-rich but under-explored Province of Aceh, Sumatra, Indonesia ().With an inferred total resource of 3.13 million oz (Moz) of Au at a cut-off grade of 0.2 g/t Au (Taylor, 2011), it is the second largest deposit of its kind after the Martabe deposit (7.4 Moz Au and 70 Moz Ag with a Get price

Miocene and Early Pliocene Epithermal Gold

Epithermal Au-Ag deposits RM AT TU W F 27-Ma Timeline A Interior Andesite-Rhyolite Assemblage Challis Magmatic Belt 120 W 114 W 42 N 39 N 36 N 120 W 114 W Sri0.706 Sri0.706 FIG. 2. Maps showing the general distribution of volcanic assemblages Get price

Te

N2 - Au-Ag-Te-Se-bearing epithermal mineralization at Prasolovskoye occurs along fault zones developed within a circular intrusive zone in Miocene to Quaternary age volcanic rocks. The ores show complex textures and mineralogy and can be divided into three stages based on tectonic fracturing and mineral associations: pyrite (I), polymetallic (II), and gold-silver (III). Get price

Elemental analysis of bonanza ores of the Ryosen veins, Hishikari epithermal Au–Ag

ores from the Ryosen veins in the Hishikari epithermal Au–Ag deposit. The X-ray mapping results show that the metallic elements (Au, Ag, Cu, Fe, Zn, and Se) and sulfur are correlated. However these elements are negatively correlated with potassium with a Get price

Epithermal Au

Epithermal Au-Ag-Te Mineralization, Acupan,Baguio district, Philippines: Numerical Simulations of Mineral Deposition Citation Cooke, D McPhail, D 2001, 'Epithermal Au-Ag-Te Mineralization, Acupan,Baguio district, Philippines: Numerical Simulations of Mineral Deposition', Economic Geology; Bulletin of the Society of Economic Geologists, vol. 96, pp. 109-131. Get price

Geology, mineralogy and genesis of the world

An epithermal polymetallic-Au-Ag mineralization formed in a Precambrian arc sequence in the Arabian Shield. • Gold-, Ag-, Bi- and Pb-tellurides are closely associated with chalcopyrite and chlorite. • Tellurium was introduced to the mineralizing fluids by partial Get price

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

1 Introduction There are many epithermal gold–tellurium deposits in Cretaceous to the present volcanic terranes in the Japanese Islands. Epithermal gold telluride ores with (Au, Ag)Te 2 minerals such as calaverite (AuTe 2), sylvanite (AuAgTe 4), and krennerite ([Au, Ag]Te 2) are of economic and scientific interest because the ores of hand‐specimen scale contains extremely high gold Get price

Geoinsite – Just another WordPress site

High sulphidation epithermal Au-Ag mineralisation Low sulphidation Au-Ag mineralisation Sediment hosted Au mineralisation Iron oxide Cu-Au mineralisation About Us Doug's Publications Contact Us Menu Home Expertise Services Offered Porphyry Cu-Au Mo Get price

Geological and geochemical controls for epithermal Au

Holder, David S. (2016) Geological and geochemical controls for epithermal Au-Ag-Te (Pb-Zn) mineralisation at Coranda-Hondol and the Brad-Sacaramb basin mineral district of western Romania. (PhD thesis), Kingston University, . Full text not available from Get price

Brett Epithermal Gold – Ximen Mining Corporation

Epithermal gold deposits offer some of the largest and highest grade gold mines in the world. In 2014, a Au-Ag-Hg-Sb-Tl soil anomaly was defined over the East Zone, with maximum gold values of 290 ppb and 243 ppb Au. The anomaly appears to be a The Get price

Geology and Geochemistry of Epithermal Au

The El Pen gold-silver deposit comprises six epithermal veins, which contain a geologic resource (measured + indicated + inferred) of 3.8 million oz (Moz) Au and 63 Moz Ag. Three of the veins are currently being mined by underground and open-pit methods. El Get price

Hot Creek Epithermal Au

• Low-sulfidation epithermal Au-Ag targets with similar host rocks, geology, and alteration to Tuscarora bonanza vein hosted mines to south • 41 widely-spaced historic drill holes with grades up to 1.04 g/t Au over 12.2 meters and 0.34 g/t Au over 117.3 meters Get price

Miocene and early Pliocene epithermal gold

Numerous important Miocene and early Pliocene epithermal Au-Ag deposits are present in the northern Great Basin. Most deposits are spatially and temporally related to two magmatic assemblages: bimodal basalt-rhyolite and western andesite. These magmatic Get price

Brett Epithermal Gold – Ximen Mining Corporation

Epithermal gold deposits offer some of the largest and highest grade gold mines in the world. In 2014, a Au-Ag-Hg-Sb-Tl soil anomaly was defined over the East Zone, with maximum gold values of 290 ppb and 243 ppb Au. The anomaly appears to be a The Get price

Epithermal Au

epithermal au-ag mineralisation at the locality prochot-lazy in the mantle of the štiavnica stratovolcano 151 alternating with lava breccias are present, locally affected by fracturation (Valach et al., 1975). The only distinctive zone of tectonic breccia with hydrothermal Get price

Pyrite Geochemistry and Textures in the Epithermal Au

Pyrite Geochemistry and Textures in the Epithermal Au-Ag Mineralisation at Waihi A G Eames1, S LL Barker1 and P M J Durance2 1University of Waikato, School of Science, Private Bag 3105, Hamilton.Email: anna_eameshotmail 1University of Waikato, School of Get price

La Gitana Project: A new epithermal Au

Ag, Au Deposit Type epithermal, low-sulfidation, volcanic-hosted Company Chesapeake Gold Corp Project La Gitana Alteration Type mineral alteration Related products Possible Volcanic Source of Lithium in Brines in Clayton Valley, Nevada $ 10.00 Add to cart Get price

Epithermal Au

Epithermal Au-Ag deposits are distinguished as high and low sulphidation (HS LS) on the basis of ore and gangue mineralogy, derived from distinctly different fluid typess, and for the LS deposits there is a further distinction between the group of base metal rich deposits which Get price

Fluid Inclusion Studies of Comb Quartz and Stibnite at the

The Hishikari deposit is one of the epithermal Au–Ag deposits located in southern Kyushu (Fig. 1a). The deposit formed during the Pleistocene (0.61–1.25 Ma) (Izawa et al., 1990 ; Sanematsu et al., 2005 ; Tohma et al., 2010 ) within basement sedimentary rocks of the Cretaceous Shimanto Supergroup and the overlying Quaternary volcanic rocks (Fig. 1 b). Get price

Epithermal Au

Epithermal Au-Ag-Te Mineralization, Acupan,Baguio district, Philippines: Numerical Simulations of Mineral Deposition Citation Cooke, D McPhail, D 2001, 'Epithermal Au-Ag-Te Mineralization, Acupan,Baguio district, Philippines: Numerical Simulations of Mineral Deposition', Economic Geology; Bulletin of the Society of Economic Geologists, vol. 96, pp. 109-131. Get price

Epithermal Au

Epithermal Au-Ag-Te Mineralization, Acupan,Baguio district, Philippines: Numerical Simulations of Mineral Deposition Citation Cooke, D McPhail, D 2001, 'Epithermal Au-Ag-Te Mineralization, Acupan,Baguio district, Philippines: Numerical Simulations of Mineral Deposition', Economic Geology; Bulletin of the Society of Economic Geologists, vol. 96, pp. 109-131. Get price

Epithermal Gold Deposits Characteristics

A fascinating group and characteristic of Epithermal gold deposits is that you can virtually see them forming today, simply by visiting hot springs. Like those with Yellowstone in Wyoming or Rotorua in New Zealand. This photo is Pamukkale, low sulfidation hot springs in Turkey, with a beautiful white centre terraces. If you like hot springs, you'll love epithermal. Let's start where we Get price

La Gitana Project: A new epithermal Au

Ag, Au Deposit Type epithermal, low-sulfidation, volcanic-hosted Company Chesapeake Gold Corp Project La Gitana Alteration Type mineral alteration Related products Possible Volcanic Source of Lithium in Brines in Clayton Valley, Nevada $ 10.00 Add to cart Get price

Hot Creek Epithermal Au

• Low-sulfidation epithermal Au-Ag targets with similar host rocks, geology, and alteration to Tuscarora bonanza vein hosted mines to south • 41 widely-spaced historic drill holes with grades up to 1.04 g/t Au over 12.2 meters and 0.34 g/t Au over 117.3 meters Get price

Elemental analysis of bonanza ores of the Ryosen veins, Hishikari epithermal Au–Ag

ores from the Ryosen veins in the Hishikari epithermal Au–Ag deposit. The X-ray mapping results show that the metallic elements (Au, Ag, Cu, Fe, Zn, and Se) and sulfur are correlated. However these elements are negatively correlated with potassium with a Get price

Short course: Epithermal Au

Dr Greg Corbett is offering his course on epithermal and porphyry mineralisation systems in Sydney in early December this year with co-presenter and able side-kick Stuart Hayward. Neither Greg nor Stuart need much introduction, being long-term workers in Pacific Get price