Gold Mountain Limited (ASX: GMN) (“Gold Mountain” or “the Company” or “GMN”) is pleased to announce it has visually identified numerous occurrences of both leucogranites and of charnockite in five of its tenements and silicified and sheared rocks that are often associated with good REE values.
Highlights
GMN is delighted to announce that it has identified widespread charnockite and leucogranites in the five tenements in which stream sediment sampling is progressing. Charnockite is widespread and leocogranites have been identified at three locations in three separate tenements.
Sheared and silicified rocks have also been identified. The sheared rock found is a type that is often associated with high REE values according to one of our personnel with over 4 years experience working on REE in the region. Channel sampling of those exposures has been undertaken and samples are being prepared for dispatch.
Figure 1. Boulders of charnockite and a broken face showing bluish grey charnockite under a weathered outer skin.
Figure 2. Outcrop and broken face of undeformed leucogranite with cream coloured weathered outer skin.
The silicified rocks will also be sampled as they are also can be associated with high grade REE values.
Figure 3. Silicified charnockite and a quartz vein or layer in the silicified charnockite.
Sampling commenced in tenements that are within 1.4 km of high-grade mineralisation drilled and reported by Brazilian Rare Earths in their Prospectus (lodged ASX 13 November 2023). There is no guarantee that GMN will have similar levels of results to results achieved by BRE, however they do assist in forming a basis for planned and targeted exploration.
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This article includes content from Gold Mountain, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.
Grande Portage Resources Ltd. (TSXV:GPG)(OTCQB:GPTRF)(FSE:GPB) ("Grande Portage" or the "Company") is pleased to announce results from testwork of a sensor-based ore sorting system, utilizing a composite core sample from the New Amalga Mine Project located approximately 16 miles (25 km) northwest of the city of Juneau.
Summary of Results:
Unsorted Feed | Sorter Reject | Sorted Product | |
Mass (kg) | 64.8 kg | 37.2 kg | 27.6 kg |
% Mass Distribution | 100% | 57% | 43% |
Gold Grade (g/t) | 5.9 g/t | 0.6 g/t | 12.9 g/t |
% Gold Distribution | 100% | 6% | 94% |
Ian Klassen, President and CEO comments: "We are extremely pleased with the results of the testwork with the Steinert ore sorting equipment, which demonstrated excellent ability to identify and reject the unmineralized particles within the sample of New Amalga material, resulting in a 120% increase in gold grade and a 57% reduction in mass with very minimal gold loss."
Mr. Klassen continued: "These results are game changing for a host of reasons. Integrating ore sorting into the conceptual mine production plan significantly reduces the amount of mined rock requiring transportation and processing at a third-party facility, lowering per-ounce costs and also providing useful sorter-reject material for underground backfill, all without the use of chemical processing reagents. This further enhances the existing advantages of our proposed direct-ship mine configuration which utilizes offsite processing. As demonstrated by the test results, it may also create opportunities for inclusion of thinner veins into the mine plan - areas of the deposit which otherwise may not have been considered viable."
Background:
As previously announced, the Company's Conceptual Mining Plan envisions the future development of the New Amalga gold mine as a selective underground mining operation which would send ore off-site to be processed at a third-party facility, enabled by the project's location near tidewater and less than 4 miles (6.5km) from existing paved highway (Fig. 4). This results in a dramatically reduced mine site footprint due to the avoidance of chemical processing and tailings storage facilities.
The purpose of ore sorting is to quickly separate particles of waste dilution rock from the mined material, without the use of chemical reagents. The goal is to significantly reduce the volume of material that would be transported off-site to a third-party processing facility.
Grande Portage assembled a drill core composite which included both ore and waste material to reflect the dilution from wall rock (waste) which is inherent with underground blasting of narrow ore veins. The core composite was subjected to a sensor-based ore sorting test process at the facilities of Steinert US Inc, a leading global manufacturer of ore-sorting equipment.
Technical Description of Ore Sorting Test Process:
Sensor-based ore sorting can utilize a variety of measurements to determine whether a particle is ore or waste, including color, electromagnetic induction, laser, and x-ray analysis to assess elemental composition. The crushed rock is placed on a conveyor belt and then passed in front of the sensor, which rapidly analyzes the individual pieces of rock. When a piece of rock is identified as waste, a puff of compressed air redirects it to a "reject" bin. The remining pieces of rock are sent to the accepted "product" stockpile. (Fig. 2)
Fine particles too small to effectively sort are typically combined with the "product" stockpile, since higher-grade material tends to produce more fines during blasting and crushing due to the higher sulphide content and brittle nature of the quartz vein rock.
For the testwork, a series of reference samples were analyzed by the sorter machine, reflecting core material of various categories including "high grade ore", "mid grade ore", "low grade ore", and "waste". This allowed the sorter to learn the characteristics of each type of material in order to generate a sorting algorithm. Each of these reference samples were sourced from multiple drill holes at various locations within the deposit in order to capture any spatial variability in the rock characteristics.
After the sorting algorithm was developed, the composite sample was fed into the sorter machine (Fig. 3). This composite was sourced from multiple drill holes in various areas of the deposit distinct from the reference samples. It included approximately 55% wall rock and 45% vein rock, reflecting potential waste dilution within run-of-mine material to simulate mining an area of vein narrower than the minimum mechanized mining width.
In addition to the "product" material, three splits of "reject" material were generated from sorting the sample at progressively increasing level of selectivity, reflecting operation of the machine at various degrees of sorting criteria. All material was then assayed at SGS-Lakefield.
All three "reject" splits returned assays below the level which would be considered viable to transport and process at a third-party facility, and were therefore classified as waste, indicating that the highest level of sorter selectivity is appropriate. In total the sorter rejected 57% of the feed material, indicating excellent alignment with the approximately 55% wall rock content of the composite sample.
Additionally, all material was screened before assay to collect unsortable fines (<1cm), which were assayed separately. This confirmed that the fines contained a high degree of gold mineralization and are appropriate to combine with the "product" sample. A full table of results is shown below (Fig. 1).
Fig. 1: Table of Assay Results
Reject #1 | Reject #2 | Reject #3 | Sorted Product | Unsortable Fines | |
Mass (kg) | 12.2 | 13.1 | 11.9 | 22.6 | 5.0 |
Au (g/t) | 0.48 | 1.09 | 0.30 | 12.9 | 13.1 |
Overall Waste Rejected | Overall Product | ||||
Mass (kg) | 37.2 | 27.6 | |||
Au (g/t) | 0.64 | 12.94 |
Fig. 2: Simplified Conceptual Diagram of an Ore Sorting System
Fig. 3: Image of Ore Sorting Testwork Being Conducted on New Amalga Samples
A short video of the testwork process is available on YouTube at https://youtu.be/K4XzoRbjCXA
Fig. 4: Location of New Amalga Mine Project
Kyle Mehalek, P.E.., is the QP within the meaning of NI 43-101 and has reviewed and approved the technical disclosure in this release. Mr. Mehalek is independent of Grande Portage within the meaning of NI 43-101.
About Grande Portage:
Grande Portage Resources Ltd. is a publicly traded mineral exploration company focused on advancing the New Amalga Mine project, the outgrowth of the Herbert Gold discovery situated approximately 25 km north of Juneau, Alaska. The Company holds a 100% interest in the New Amalga property. The New Amalga gold system is open to length and depth and is host to at least six main composite vein-fault structures that contain ribbon structure quartz-sulfide veins. The project lies prominently within the 160km long Juneau Gold Belt, which has produced over eight million ounces of gold.
The Company's updated NI#43-101 Mineral Resource Estimate (MRE) reported at a base case mineral resources cut-off grade of 2.5 grams per tonne gold (g/t Au) and consists of: an Indicated Resource of 1,438,500 ounces of gold at an average grade of 9.47 g/t Au (4,726,000 tonnes); and an Inferred Resource of 515,700 ounces of gold at an average grade of 8.85 g/t Au (1,813,000 tonnes), as well as an Indicated Resource of 891,600 ounces of silver at an average grade of 5.86 g/t Ag (4,726,000 tonnes); and an Inferred Resource of 390,600 ounces of silver at an average grade of 7.33 g/t silver (1,813,000 tonnes). The MRE was prepared by Dr. David R. Webb, Ph.D., P.Geol., P.Eng. (DRW Geological Consultants Ltd.) with an effective date of July 17, 2024.
ON BEHALF OF THE BOARD
"Ian Klassen"
Ian M. Klassen
President & Chief Executive Officer
Tel: (604) 899-0106
Email: Ian@grandeportage.com
Cautionary Statement Regarding Forward-Looking Information
This news release includes certain "forward-looking statements" under applicable Canadian securities legislation. Forward-looking statements include estimates and statements that describe the Company's future plans, objectives or goals, including words to the effect that the Company or management expects a stated condition or result to occur. Forward-looking statements may be identified by such terms as "believes", "anticipates", "expects", "estimates", "may", "could", "would", "will", or "plan". Since forward-looking statements are based on assumptions and address future events and conditions, by their very nature they involve inherent risks and uncertainties as described in the Company's filings with Canadian securities regulators. There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements. The Company disclaims any intention or obligation to update or revise any forward-looking information, whether as a result of new information, future events or otherwise, other than as required by law.
Please note that under National Instrument 43-101, the Company is required to disclose that it has not based any production decision on NI 43-101-compliant reserve estimates, preliminary economic assessments, or feasibility studies, and historically production decisions made without such reports have increased uncertainty and higher technical and economic risks of failure. These risks include, among others, areas that are analyzed in more detail in a feasibility study or preliminary economic assessment, such as the application of economic analysis to mineral resources, more detailed metallurgical and other specialized studies in areas such as mining and recovery methods, market analysis, and environmental, social, and community impacts. Any decision to place the New Amalga Mine into operation at levels intended by management, expand a mine, make other production-related decisions, or otherwise carry out mining and processing operations would be largely based on internal non-public Company data, and on reports based on exploration and mining work by the Company and by geologists and engineers engaged by the Company.
NEITHER THE TSX VENTURE EXCHANGE NOR ITS REGULATION SERVICE PROVIDER (AS THAT TERM IS DEFINED UNDER THE POLICIES OF THE EXCHANGE) ACCEPTS RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THIS NEWS RELEASE
All amounts expressed in US dollars
Barrick Gold Corporation (NYSE:GOLD)(TSX:ABX) The Reko Diq Joint Venture shareholders have approved the project's updated Feasibility Study and conditionally approved the associated Phase 1 development capital subject to the closing of up to $3 billion limited recourse project financing, allowing the project to advance with major works in 2025, while maintaining the target for first production by the end of 2028.
At the same time, the shareholders have selected Fluor Corporation as the lead Engineering, Procurement and Construction Management (EPCM) partner to work alongside the Barrick Owner's Team in the detailed design and construction of the project.
Speaking from the Pakistan Minerals Investment Forum in Islamabad today, Barrick president and chief executive Mark Bristow said this important milestone reflected the support of the governments of Balochistan and Pakistan, in partnership with Barrick, to develop one of the world's largest undeveloped copper-gold projects. The project is located in the province of Balochistan, Pakistan, and operated by Barrick.
"The selection of Fluor as our EPCM partner strengthens our ability to execute the Reko Diq project with the technical rigor, operational discipline and socio-environmental responsibility that are hallmarks of both companies," said Bristow. "We look forward to working closely with Fluor to ensure that Reko Diq delivers lasting value to all our stakeholders, particularly the people of Balochistan and Pakistan."
Fluor will be supported by a range of expert engineering consultants including Knight Piesold, PRDW and Vecturis, who have worked with the Barrick Owner's Team throughout the Feasibility Study.
Bristow said the selection of Fluor reflects a shared commitment to delivering large-scale mining projects safely, responsibly and efficiently, while maximizing local content and community development. Metso, Weir and Komatsu have also been selected as key partners to the project, providing the majority of the processing and mining equipment.
"These engineering and supply partnerships bring extensive global experience in delivering large copper concentrate projects in challenging jurisdictions, including high-altitude, remote and logistically complex environments. This expertise aligns strongly with Barrick's own track record of successfully developing and operating major projects in challenging jurisdictions around the world," Bristow said.
Barrick Enquiries
Investor and Media Relations
Kathy du Plessis
+44 20 7557 7738
Email: barrick@dpapr.com
Website: www.barrick.com
Cautionary Statement on Forward-Looking Information
Certain information contained or incorporated by reference in this press release, including any information as to our strategy, projects, plans or future financial or operating performance, constitutes "forward-looking statements". All statements, other than statements of historical fact, are forward-looking statements. The words "target", "progress", "aim", "process", "hope", "potential", "grow", "ensure", "believe", "create", "will", "would" and similar expressions identify forward-looking statements. In particular, this press release contains forward-looking statements including, without limitation, with respect to: development and operation of the Reko Diq project, including the anticipated timeline for construction and first production; the contemplated life of mine, production and economics of the Reko Diq project; the anticipated sharing of the benefits from the Reko Diq project with Barrick's host governments and communities in line with Barrick's partnership model; future demand for metals and minerals, particularly copper, and expectations regarding financial performance and other outlook or guidance.
Forward-looking statements are necessarily based upon a number of estimates and assumptions including material estimates and assumptions related to the factors set forth below that, while considered reasonable by Barrick as at the date of this press release in light of management's experience and perception of current conditions and expected developments, are inherently subject to significant business, economic and competitive uncertainties and contingencies. Known and unknown factors could cause actual results to differ materially from those projected in the forward-looking statements and undue reliance should not be placed on such statements and information. Such factors include, but are not limited to: fluctuations in the spot and forward price of gold, copper or certain other commodities (such as diesel fuel, natural gas and electricity); the speculative nature of mineral exploration and development; changes in mineral production performance, exploitation and exploration successes; risks associated with projects in the early stages of evaluation and development and for which additional technical, engineering and other analysis is required; disruption of supply routes which may cause delays in development, construction and mining activities; diminishing quantities or grades of reserves; increased costs, delays, suspensions and technical challenges associated with the construction of capital projects; operating or technical difficulties in connection with mining or development activities, including geotechnical challenges and disruptions in the maintenance or provision of required infrastructure and information technology systems; failure to comply with environmental and health and safety laws and regulations; the failure to obtain key licenses by governmental authorities; changes in national and local government legislation, taxation, controls or regulations and/or changes in the administration of laws, policies and practices; expropriation or nationalization of property and political or economic developments in the Islamic Republic of Pakistan or the Province of Balochistan; timing of receipt of, or failure to comply with, necessary permits and approvals; lack of certainty with respect to foreign legal systems, corruption and other factors that are inconsistent with the rule of law; risks associated with illegal and artisanal mining; risks associated with new diseases, epidemics and pandemics; damage to Barrick's reputation due to the actual or perceived occurrence of any number of events, including negative publicity with respect to the Barrick's handling of environmental matters or dealings with community groups, whether true or not; the possibility that future exploration results will not be consistent with Barrick's expectations; risks that exploration data may be incomplete and considerable additional work may be required to complete further evaluation, including but not limited to drilling, engineering and socioeconomic studies and investment; risk of loss due to acts of war, terrorism, sabotage and civil disturbances; litigation; contests over title to properties, particularly title to undeveloped properties, or over access to water, power and other required infrastructure; business opportunities that may be presented to, or pursued by, Barrick; risks associated with working with partners in jointly controlled assets; employee relations including loss of key employees; increased costs and physical risks, including extreme weather events and resource shortages related to climate change; and availability and increased costs associated with mining inputs and labor. In addition, there are risks and hazards associated with the business of mineral exploration, development and mining, including environmental hazards, industrial accidents, unusual or unexpected formations, pressures, cave-ins, flooding and gold bullion, copper cathode or gold or copper concentrate losses (and the risk of inadequate insurance, or inability to obtain insurance, to cover these risks).
Many of these uncertainties and contingencies can affect our actual results and could cause actual results to differ materially from those expressed or implied in any forward-looking statements made by, or on behalf of, us. Readers are cautioned that forward-looking statements are not guarantees of future performance. All of the forward-looking statements made in this press release are qualified by these cautionary statements. Specific reference is made to the most recent Form 40-F/Annual Information Form on file with the SEC and Canadian provincial securities regulatory authorities for a more detailed discussion of some of the factors underlying forward-looking statements and the risks that may affect Barrick's ability to achieve the expectations set forth in the forward-looking statements contained in this press release.
We disclaim any intention or obligation to update or revise any forward-looking statements whether as a result of new information, future events or otherwise, except as required by applicable law.
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