"The historic Croesus Gold Mine produced some of the highest-grade gold ever mined in Ontario, with an average head grade of 95.3 g/t (2.78 opt) gold. This new vein underscores the opportunity for ...
The high-grade quartz veins encountered in the drilling at Elizabeth show close geological similarities to the Bralorne-Pioneer mesothermal vein system (approximately 30km south), which was mined ...
The Project includes several known high-grade veins and bulk tonnage systems, including the past-producing Croesus Gold Mine, which yielded some of the …
Sassy Gold Corp. ("Sassy" or the "Company") (CSE:SASY)(FSE:4E7)(OTCQB:SSYRF) continues to expand the 4Amigos Vein along strike and to depth and has drilled into a new high-grade vein parallel to ...
Mining to resume in initial Father's Day Vein development area; Expecting minimum of 30-35,000 oz of coarse gold will be recovered. High grade gold structures extended by further 340 metres. TORONTO, Oct. 2, 2018 /CNW/ - RNC Minerals (TSX: RNX) ("RNC") is pleased to announce that, after expected recovery of a high grade …
A pocket of rare visible gold has been discovered at WA's Beta Hunt mine for the second time in just nine months. About $15 million worth of rare gold specimens were mined in just four days last ...
Underground Mines & High-Grade Veins at Gold Springs. August 18, 2022. View PDF. Why we believe in the huge potential for growth in grade and in resource of our flagship …
Continuation of significant high-grade intercepts at the producing Sandra K and El Silencio mines ; Success continues in our brownfield drilling campaign on the La Guarida-Cristales Vein System ...
"The historic Croesus Gold Mine produced some of the highest-grade gold ever mined in Ontario, with an average head grade of 95.3 g/t (2.78 opt) gold. This new vein underscores the opportunity for additional discoveries within an established high-grade gold environment. It is an excellent start to Onyx Gold's inaugural drill program in …
Exceptionally high-grade, gold-rich quartz vein samples were collected from five gold deposits characterised by the presence of coarse visible gold that formed at a range of crustal depths, from ...
Sep 9, 2015 Updated Dec 11, 2015. 0. 1 of 16. John Marma, chief geologist at Fire Creek, explains how gold is found in the vein that also contains quartz and calcite. The black rock surrounding ...
Introduction. High nugget effect gold vein deposits are generally characterised by the presence of localised and erratic high grades intermixed with low grades (Dominy et al., 2000a, 2000b, 2003a ). They typically possess a nugget effect of greater than 50% (Dominy et al., 2010 ). In addition, deposits are often characterised by …
The credit may go to nanoparticles. New research reveals that high-grade veins of gold contain clusters of gold nanoparticles, which is important because it explains how these impossibly rich …
New research reveals that high-grade veins of gold contain clusters of gold nanoparticles, which is important because it explains how these impossibly rich aggregations of gold can form...
Truscottite is a minor mineral in the Honko veins, as in other high-grade gold deposits. On the basis of synthetic experiments (Harker, 1964), it was suggested that truscottite forms from waters supersaturated with respect to quartz. Therefore, the presence of truscottite and the apparent equilibrium between adularia and kaolinite indicate that ...
Epithermal Vein-type Gold Deposits ... A high-grade deposit could have gold values ranging from 10 to more than 150 grams per tonne, whereas a low-grade deposit grades in the range of 1 to 5 grams. Low-grade deposits may have up to, and possibly more than, 200 million tonnes of rock, whereas a high-grade deposit is frequently smaller. ...
In 2022 Headwater completed ten drillholes – 3,173 m total; Including first-ever core drilling at Spring Peak – Four of ten hit greater than 15 g/t Au. Disco Zone: High-grade gold in banded epithermal veins, open down dip and laterally in both directions Opal Ridge: New high-grade vein discovery at relatively shallow depth. 2023 Drill ...
Key Takeaways. All precious metals are graded by the amount of metal within the ore. A higher grade means that the ore has a higher density of gold. Gold ore density is measured by grams per tonne ...
The Project includes several known high-grade veins and bulk tonnage systems, including the past-producing Croesus Gold Mine, which yielded some of the highest-grade gold ever …
High-grade gold in both quartz veins and stockwork quartz in the wallrock suggests wide zones of gold mineralization. Visible gold in quartz veins identified in …
But how do fluids with such low concentrations of gold produce rare ultrahigh-grade gold deposits? Our findings solve the paradox of 'ultrahigh-grade' or 'bonanza' gold formation, which has frustrated …
Recent Golden Rapture sampling results as high as 125.00 g/t Au. 2. Young's Bay Occurrence: Has six (6) parallel quartz veins, four of which have visible gold with …
reasonable geometry with low to high-grade . variability. 33. GMJ Vol. 21, ... consists of steeply dipp ing gold-silver mineralised . ... correlation between grade and vein thickness, gr ade .
All ten holes were drilled at the Big Vein target and include intercepts of 17.63 g/t Au over 1.25m in hole K-21-98 and 14.50 g/t Au over 1 m from hole K-21-82 showing the presence of additional ...
Dominy and Edgar Approaches to re porting grade uncertainty in high nugget gold veins 36 Applied Earth Science (Trans. Inst. Min. Metall. B) 2012 VOL 121 NO 1 gold-grade sulphide-rich zones ...
In 2021, Romios discovered three mineralized quartz + pyrite veins assaying 5.28 - 8.9 g/t Au in outcrop and boulders located 1.1 km to the SSW of the high-grade samples reported herein (see ...
Drillhole SR23-286 intersected a high-grade D Zone vein, grading 36.3 grams per tonne (g/t) gold over 5.0 metres (m) including 91.5 g/t gold over 1.07 m. Intercept is located approximately 85 m from existing underground workings. Intercept is located 220 m east of the Blueberry Contact Zone. Drillhole SR23-289 intersected a high …
The Hishikari gold deposit: high-grade epithermal veins in Quaternary volcanics of southern Kyushu, Japan ... Progressive dilation with a general increase in gold grade has produced multi-stage veining and …
Two gold quartz veins have already been identified approximately 500 m to the south of the Mila prospect with two high-grade rock chip samples of 9.34 g/t and 29.6 g/t gold some 280 m apart.
The high-grade vein occurs within a broader zone of mineralization averaging 121.8 g/t (3.55 opt) Au over 0.9m and was intersected approximately 60 m vertically below surface. This new vein discovery represents an entirely new high-grade quartz vein in a geological setting comparable to the mined-out, bonanza-grade Croesus …
In rare cases, the cracks are transformed into veins of solid gold centimetres thick. But how do fluids with such low concentrations of gold produce rare ultrahigh-grade gold deposits? ... This jelly gets trapped in the cracks of rocks to form the ultra high-grade gold veins. The gold colloids are distinctively red and can be made in …
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The credit may go to nanoparticles. New research reveals that high-grade veins of gold contain clusters of gold nanoparticles, which is important because it …
Oct. 03, 2017 11:29AM PST. Precious Metals. ALGOLD RESOURCES LTD. (TSXV:ALG – the "Corporation") today announced assay results, including high grade values of 100 g/t Au and 89 g/t Au, from ...
The determination of grade is arguably the most important activity in resource estimation, as it is generally grade and not tonnage that makes an orebody. This is particularly true of narrow vein-gold deposits whose resources are generally relatively small, though medium to high-grade (6 - 40+ g/t).
The credit may go to nanoparticles. New research reveals that high-grade veins of gold contain clusters of gold nanoparticles, which is important because it explains how these impossibly rich aggregations of gold can form in fractures below the earth. Laboratory experiments have long found that it's impossible to dissolve enough gold in ...
McGill Colloidal Au research team study a mineralized (gold-bearing) vein underground at the Brucejack mine. Credit: Duncan McLeish. For decades scientists have been puzzled by the formation of rare hyper-enriched gold deposits in places like Ballarat in Australia, Serra Palada in Brazil, and Red Lake in Ontario. While such deposits typically …