Golden Sky Minerals Identifies Strong Copper-in-Soil Trends Coincident with Intrusive Rocks at the Mowich Target
New soil and rock results at Mowich, plus a 7,288-hectare land expansion, refine Golden Sky’s porphyry copper-gold exploration model at Rayfield-Gjoll.
Rhea-AI Summary
Golden Sky Minerals (LCKYF) reported spring 2026 soil and mapping results from the Mowich Target at its Rayfield-Gjoll Copper-Gold Project in southern British Columbia.
The 2026 soil survey outlined multiple coherent copper-in-soil trends, with values rising from background levels below 50 ppm to over 300 ppm Cu, and a peak assay of 521 ppm Cu. These anomalies closely follow mapped diorite, monzodiorite and monzonite intrusions, with the strongest copper-in-soil responses along intrusive margins. Rock sampling on a diorite margin returned up to 2,216.1 ppm Cu (0.22% Cu), coincident with elevated soil values, supporting a porphyry-style copper-gold exploration model.
The company also expanded the Rayfield-Gjoll land package by approximately 7,288 hectares along the southwest, adding ground over interpreted structures linked to historical copper-gold mineralization.
Positive
- Copper-in-soil anomalies to 521 ppm Cu, well above <50 ppm background
- Rock sampling on diorite margin up to 2,216.1 ppm Cu (0.22% Cu)
- Mowich nuggets previously reported up to 37.46% Cu, 286 g/t Au, 200 g/t Ag
- Project area expansion by approximately 7,288 hectares on the southwest margin
- Flagship Rayfield-Gjoll subject to a C$20 million earn-in and JV with Boliden
Negative
- None.
AI-generated analysis. How Rhea-AI works. Not financial advice.
Vancouver, British Columbia--(Newsfile Corp. - September 14, 2026) - Golden Sky Minerals Corp. (TSXV: AUEN) (OTC Pink: LCKYF) ("Golden Sky" or the "Company") is pleased to report results from its spring 2026 soil sampling and geological mapping programs at the Mowich Target on its Rayfield-Gjoll Project in southern British Columbia. Results to date are defining a strong and coherent copper-in-soil response spatially associated with mapped diorite, monzodiorite and monzonite intrusive rocks, providing important new targets for follow-up exploration (Figure 1).
The 2026 program was designed to systematically evaluate the relationship between surface geochemistry, geology and previously identified geophysical anomalies across the Mowich Target. The results are beginning to establish a compelling geological framework for the copper mineralization identified at surface.
Copper Geochemistry Closely Associated with Intrusive Rocks
The 2026 soil survey has identified multiple coherent copper-in-soil trends, with the strongest responses concentrated through the central portion of the survey area. Importantly, these anomalous zones are spatially associated with mapped diorite, monzodiorite and monzonite intrusive phases.
Copper-in-soil values increase from background levels of less than 50 parts per million ("ppm") to greater than 300 ppm copper ("Cu") in several areas, with the highest assay reaching 521 ppm Cu. Rather than occurring as isolated geochemical anomalies, the elevated values form elongated and laterally continuous trends across multiple sampling lines.
The spatial relationship between the elevated geochemical assays and mapped intrusive rocks is particularly significant. The strongest copper-in-soil anomalies occur around and along the margins of the intrusive bodies, highlighting intrusive contacts and associated structural zones as potential controls on hydrothermal fluid flow and copper mineralization. This relationship is supported by rock sampling, with samples collected along the margin of a diorite returning up to 2,216.1 ppm Cu (
Developing Porphyry-Style Exploration Model.
The emerging geological model is consistent with a porphyry copper-gold exploration environment, where multiple intrusive phases and structural corridors can provide pathways and favourable sites for hydrothermal alteration and mineralization.
Of particular interest is the central corridor, where elevated copper-in-soil values occur over a broad area and appear to track the mapped intrusive complex. Several of the highest soil assays occur immediately adjacent to or straddling interpreted contacts between intrusive phases and surrounding volcanic/sedimentary rocks. These relationships provide priority areas for detailed geological mapping, rock sampling and geophysical follow-up.
Several outcrops of picrite were identified along the margins of the intrusions, where the rocks have undergone intense talc-carbonate alteration.
Importantly, the Mowich nuggets (float material) occur downslope from these strongly altered picrite outcrops and have returned exceptionally high grades, including
Expanding the Project through Staking
The Project has been expanded by approximately 7,288 hectares along its southwestern portion, strategically covering interpreted prospective structures associated with historical copper-gold mineralization. The expanded claims provide the Company with additional exploration ground and extend the Project's land position over geological trends considered prospective for additional mineralization (Figure 3).
John Newell, President and CEO of Golden Sky Minerals, comments: "We continue to be encouraged by the positive geological results emerging from each phase of work at Rayfield-Gjoll. At Mowich, the growing correlation between copper-in-soil anomalies, mapped intrusive rocks, alteration and structure is helping us build a stronger geological model and providing clear direction for the next stage of exploration. Importantly, these results are not occurring in isolation but are adding to the broader geological picture we are developing across this large and highly prospective project. Our decision to expand the Rayfield-Gjoll land position by approximately 7,300 hectares reflects both geological and strategic considerations. The new claims extend our coverage over interpreted structures that we believe may have played an important role in controlling hydrothermal activity and copper-gold mineralization."
Figure 1: Map showing the spatial relationship between copper-in-soil anomalies and mapped intrusive rocks, highlighting the association between anomalous soil geochemistry and the margins of the intrusive units.
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/11793/314368_4f63661fd440089e_004full.jpg
Figure 2: Map illustrating the spatial relationship between alteration, rock geochemistry, intrusive units, and altered picrite-basalt host rocks. Importantly, the Mowich Nuggets occur downslope from a strongly altered halo along the margin of a monzonite intrusion, providing a compelling geological vector toward the potential source of the high-grade mineralization.
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/11793/314368_4f63661fd440089e_005full.jpg
Figure 3: The Rayfield-Gjoll project has been expanded by approximately 7,288 hectares on the southwest limits of the project.
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/11793/314368_4f63661fd440089e_006full.jpg
Sample Preparation, Analytical Methods and QA/QC
Rock and soil samples were stored onsite for the duration of the program. At the program's conclusion, samples were driven by Contractor personnel to Bureau Veritas' lab in Vancouver, British Columbia and ALS Labratory in Kamloops, British Columbia.
At BV, rock samples were weighed, logged, fine crushed to better than
Gold in rock samples were analyzed using BV method fire assay analysis FA350-Au. This package uses a 50-gram split, fire assay, and ICP-ES analysis. Multi-element geochemical analysis (45 elements) was performed on all rock samples using BV method MA200 where a 0.25g split is analyzed by multi-acid digest with ICP-MS/ES finish. Over-limits copper samples were re-analyzed using BV method MA370 with an ICP-ES finish.
Soil samples were analyzed using ALS labs method AuME-TL43. This package uses a 25 g split that is analyzed by aqua regia digest with ICP-MS/AES finish.
Bureau Veritas and ALS perform its own QA/QC procedure and is ISO 17025 certified. Blanks, duplicates, and standard reference materials are sequentially inserted into the client's sample stream to test for contamination, uniformity of element distribution, and analytical accuracy.
About Golden Sky Minerals Corp.
Golden Sky Minerals Corp. is a project generator-style junior explorer focused on the acquisition, systematic exploration, and strategic advancement of a diversified portfolio of
Golden Sky's portfolio includes the flagship Rayfield-Gjoll Copper-Gold Project in British Columbia (subject to a C
More information can be found at the Company's website at www.goldenskyminerals.com.
About Boliden
Boliden's vision is to be the most climate-friendly and respected metal provider in the world. We are Europe's producer of sustainable metals and, guided by our values care, courage and responsibility, we operate within exploration, mines, smelters and recycling. We are around 8,000 employees and have annual revenues of approximately SEK 90 billion. The share is listed in the Large Cap segment of NASDAQ Stockholm.
ON BEHALF OF THE BOARD
John Newell, President, Chief Executive Officer and Director
Andy Randell, P. Geo., Consulting Geologist with SGDS Hive Geological Consulting Ltd, is a qualified person as defined by National Instrument 43-101 for Golden Sky's British Columbia exploration projects, and has reviewed and approved the technical information in this release. Mr. Randell is independent of the Company.
For new information from the Company's programs, please visit Golden Sky's website at www.GoldenSkyMinerals.com or contact John Newell by telephone (604) 568-8807 or by email at info@goldenskyminerals.com or john.newell@goldenskyminerals.com.
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.
Forward-Looking Statements
Statements contained in this news release that are not historical facts are "forward-looking information" or "forward-looking statements" (collectively, "Forward-Looking Information") within the meaning of applicable Canadian securities legislation. In certain cases, Forward-Looking Information can be identified by the use of words and phrases such as "anticipates", "intends", "expects", "understanding", "has agreed to" or variations of such words and phrases or statements that certain actions, events or results "would", "occur" or "be achieved". Although Golden Sky has attempted to identify important factors and risks that could affect Golden Sky and may cause actual actions, events or results to differ materially from those described in Forward-Looking Information, there may be other factors and risks that cause actions, events or results not to be as anticipated, estimated or intended, including, without limitation: inherent risks involved in the exploration and development of mineral properties; the uncertainties involved in interpreting drill results and other exploration data; the potential for delays in exploration or development activities; the geology, grade and continuity of mineral deposits; the possibility that future exploration, development or mining results will not be consistent with Golden Sky's expectations; accidents, equipment breakdowns, title and permitting matters; labour disputes or other unanticipated difficulties with or interruptions in operations; fluctuating metal prices; unanticipated costs and expenses; uncertainties relating to the availability and costs of financing needed in the future, including to fund any exploration programs on its projects; that Golden Sky may not be able to confirm historical exploration results and other risks set forth in Golden Sky's public filings at www.sedarplus.ca. In making the forward-looking statements in this news release, Golden Sky has applied several material assumptions, including the assumption that general business and economic conditions will not change in a materially adverse manner. There can be no assurance that Forward-Looking Information 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 Information. Except as required by law, Golden Sky does not assume any obligation to release publicly any revisions to Forward-Looking Information contained in this news release to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.
To view the source version of this press release, please visit https://www.newsfilecorp.com/release/314368
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What geological model is emerging for the Mowich Target?
The company describes an emerging porphyry copper-gold exploration environment at Mowich. Multiple intrusive phases, structural corridors and intrusive margins coincide with elevated copper-in-soil and rock geochemistry. Altered picrite and serpentinized mafic volcanic rocks are identified as important host rocks associated with the high-grade Mowich float material, providing a geological and genetic framework for the mineralization.
Where are the strongest copper-in-soil anomalies located at Mowich?
The strongest copper-in-soil anomalies occur in a central corridor of the survey area, closely tracking the mapped intrusive complex. Elevated soil values are concentrated around and along the margins of diorite, monzodiorite and monzonite intrusions, particularly near contacts between intrusive phases and surrounding volcanic or sedimentary rocks.
How does the altered picrite relate to the high-grade Mowich nuggets?
Several outcrops of strongly talc-carbonate altered picrite were mapped along intrusion margins. The Mowich nuggets, which are float material, occur downslope from these altered picrite outcrops and have previously returned very high copper, gold and silver grades. This close spatial relationship suggests a potential geological and genetic link and provides a vector for follow-up work to determine whether the altered picrite is the primary host or proximal source of the high-grade mineralization.
What follow-up exploration work is planned at Mowich?
Follow-up work will prioritize areas where elevated copper-in-soil values coincide with intrusive contacts and altered host rocks. Planned activities include detailed geological mapping, additional rock sampling and geophysical surveys focused on intrusive margins, structural corridors and the altered picrite zones that may be linked to the high-grade Mowich material.
Why did Golden Sky expand the Rayfield-Gjoll Project by about 7,288 hectares?
The project was expanded along its southwestern portion to cover interpreted prospective structures associated with historical copper-gold mineralization. The company states that the new claims extend its land position over geological trends considered prospective for additional mineralization and reflect both geological and strategic considerations in building the broader Rayfield-Gjoll exploration picture.
Who is the partner on the Rayfield-Gjoll earn-in and what are the headline terms?
The flagship Rayfield-Gjoll Copper-Gold Project is subject to a C$20 million earn-in and joint venture agreement with Boliden AB. Boliden is described as a European metals producer operating in exploration, mines, smelters and recycling, with approximately SEK 90 billion in annual revenues and a listing on the NASDAQ Stockholm Large Cap segment.
How were the rock and soil samples prepared and analyzed?
Rock samples were delivered to Bureau Veritas in Vancouver, where they were crushed, split and pulverized. Gold was analyzed by 50 g fire assay with ICP-ES (FA350-Au), and 45-element analysis used multi-acid digest with ICP-MS/ES (MA200), with over-limit copper reanalyzed by MA370. Soil samples went to ALS in Kamloops, where they were dried, sieved to -80 mesh and analyzed using the AuME-TL43 package with aqua regia digest and ICP-MS/AES finish. Both labs are ISO 17025 certified, and blanks, duplicates and standards were inserted into the sample stream for QA/QC.