Jun 14, 2021 Newrange Gold Corp (OTCMKTS:NRGOF) (FRA:X6C) said it has identified widespread gold mineralization and local concentrations of copper, lead and zinc associated with a skarn alteration, at the McGill Canyon area of the Pamlico project in Nevada.According to the gold explorer, the skarn-hosted mineralization is coincident with a much larger induced polarization chargeability anomaly …
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Jan 27, 2021 Potassium varies between 3-10% in copper-gold mineralized samples. Sodium varies between 0.2-4.2% and calcium between 0.06-5.2%. Fourteen stream sediment samples from Previsto ranged from 9.0 ppm copper to 136 ppm copper, with an average grade of 29.1 ppm copper and 0 ppb gold to 404 ppb gold, with an average grade of 38.2 ppb gold.
Geology Of Porphyry Copper Deposits. Porphyry deposits and iocgs are the worlds primary source of copper and they account for more than 60 of the copper production globally but in addition to copper they also supply 100 of the worlds molybdenum production 10 to 15 of global uranium production and a significant proportion of the worlds gold production in short they make up a critical group of ...
PE Jaw Crusher Spring Cone Crusher Ball Mill Spiral Classifier More Products. ... The Antapaccay project contains a porphyry-skarn type copper-silver-gold deposit lo ed in the Eocene-Oligocene Andahuaylas-Yauri strip, 9.4 kilometres southwest in a straight line from the Tintaya mine, in the area of the old Atalaya mine. ...
Aug 06, 2015 Confirmation that copper-gold skarn horizons extend north of the area of previous drilling, with an intercept averaging 1.00% copper and 1.01 g/t gold over a true width of 6.44 m; and Discovery of a deeper, more gold-rich skarn horizon grading 12.15 g/t gold and 0.95% copper across a true width of 2.65 m.
Drilling at Trundle Park has focused on testing the near surface skarn mineralisation and causative intrusive porphyry source, confirming Kincora’s working geological model. Recent drilling has provided encouragement for the northern and southern extensions to the skarn alteration, extending the strike of the mineralised skarn footprint at ...
Compared to hydrothermal titanite, early magmatic titanite (cores) is enriched in Ti, HSFE, and REE, but depleted in Al and F. Magmatic titanite can be enriched in W or Mo, reflecting high concentrations of these elements in the source melt and suggesting that titanite has …
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CONCLUSIONS – KEY POINTS • porphyry emplacement followed • high grade base metals developed at fairly high temperatures at an early retrograde skarn phase • base metal mineralization can be assigned to the “O’Briens Creek” Supersuite event • later development of the near-surface breccia cone probably just re-distributed metals, as concluded by previous workers
The discovery of alluvial gold in gullies south of Clermont in 1861 triggered one of Queensland's major gold rushes. The area recorded a production of at least 400,000 ounces of gold by 1956. The actual amount of gold taken from these operations is unknown and likely massively under-reported. The 1980’s saw the discovery of a number of new
Sep 14, 2015 Gold “Deposit” Class #10. Gold/Auriferous Deposits can be classified into types for which here is a List of 10 Types of Gold Deposits: Auriferous porphyry dykes, sills, and stocks ; Auriferous pegmatites; coarse-grained granitic deposits + albitite. Carbonatites and carbonatite-related deposits. Auriferous skarn and gold skarn type deposit.
Jan 17, 2017 Laos is located in the Indochina Peninsula, is the only Indo-China country on the peninsula. Laos mineral resources are widely distributed and rich …
The Tomboy—Minnie gold deposits are related to the middle Tertiary porphyry copper system centered at Copper Canyon. Gold-silver ores in the deposits occur mostly in a pyrrhotite- and pyrite ...
eCite - Porphyry and epithermal deposits and 40Ar/39Ar , The Baguio district is located in the Central Cordillera of northern Luzon, Philippin It contains numerous mineralized porphyry copper-gold, epithermal gold-silver and skarn gold-lead-zinc deposits The district is floored by Cretaceous-Eocene metavolcanic and metasedimentary rocks, which are overlain by marine to terrestrial sedimentary ...
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Sep 26, 2019 Porphyry and related skarn mineralisation within the East Lachlan Belt is associated with intermediate magnetism, followed by Silurian regional metamorphism and deposition of orogenic gold …
Jan 28, 2021 The crushers and pulverizes were cleaned with barren material after every sample. Samples were analyzed by method ME-MS61, a four acid digest preformed on 0.25g of the sample to quantitatively dissolve most geological materials. Analysis is via ICP-MS. Gold was analyzed using method Au-ICP22 on a 50g sample charge.
Nov 05, 2013 VANCOUVER, BRITISH COLUMBIA--(Marketwired - Nov. 5, 2013) - Strategic Metals Ltd. (TSX VENTURE:SMD) ( Strategic or the Company ) is pleased to announce results from its wholly-owned Hopper copper-gold skarn and porphyry property in southwestern Yukon Territory. This road accessible property encompasses 365 mineral claims covering a 74 km 2 area, and lies 22 km north …
Feb 04, 2021 The results will be used to guide the surface exploration program, which will focus on exploration for a major copper-gold skarn deposit and/or an intrusion-related porphyry-type copper-gold deposit that could be the roots of the world-class Phoenix copper-gold skarn deposit.
Jul 06, 2020 1 – Interpreted near surface skarn gold and copper intercepts are calculated using a lower cut of 0.20g/t and 0.10% respectively. Internal dilution is below cut off. 2- Porphyry gold and copper intercepts are calculated using a lower cut of 0.10g/t and 0.05% respectively. Internal dilution is …
Jan 14, 2021 Therefore, based on the interpreted structural offset and similarities in skarn-type copper-gold mineralization, the roots of Phoenix deposit are predicted to lie beneath the Snowshoe fault in the ...
Apr 08, 2021 Gold/Auriferous Deposits can be classified into types for which here is a List of 10 Types of Gold Deposits: Auriferous porphyry dykes, sills, and stocks; Auriferous pegmatites; coarsegrained granitic deposits + albitite; Carbonatites and carbonatiterelated deposits; Auriferous skarn and gold skarn type deposit; Gold
Mar 22, 2015 That skarn had a high enough grade to allow it to continue to be mined from underground. The Big Gossans copper gold skarn deposit is the highest grade deposit in the Grasberg area. Reserves of 37,000,000 tons at 2.7% copper, 1 g per ton gold and 16 g of per ton silver that’s about $240 to $250 a ton rock.
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This is where the minerals will be and possibly Gold. Sample the contact zones. Look for Laterites ( i.e. Skarn, Limonite, Jarosite, Plumbojarosite ) for they can contain zone of secondary enrichment ( Polymetallic replacement deposits, Super Gene deposits , ect.) and can be very rich with 98% pure Gold.
ing the Batu Hijau porphyry copper-gold deposit. Keywords Batu Hijau porphyry Cu-Au deposit, calc-silicate, Indonesia, skarn, Sumbawa. 1. Introduction The Batu Hijau porphyry Cu-Au deposit is situated in the south-western part of Sumbawa Island, Indone-sia Fig. 1. The deposit contains 914 Mt of ore at an average grade of 0.53 Cu 10.58 ...