Transatlantic Samples 3.1% Cu over 0.3 Metres at Monitor Project - Anvil Prospect
Transatlantic Mining (TSXV: TCO) has reported promising exploration results from its Monitor Copper-Gold Project's Anvil prospect near Taft, Idaho. Underground sampling revealed high-grade copper mineralization of 3.1% Cu over 0.3 metres in the Anvil adit. The mineralization occurs within steeply dipping fissure veins along second-order structures within a prominent shear zone.
The exploration program confirmed multiple copper fissure veins within a complex system, with veins typically extending up to 1.8 metres wide. The copper-rich veins contain chalcopyrite, pyrite, calcite, siderite, and quartz, with hydrothermal alteration extending hundreds of meters into wall rocks. Samples were analyzed at Christofferson Labs and American Analytical Laboratories, following industry-standard QA/QC protocols.
Transatlantic Mining (TSXV: TCO) ha riportato risultati promettenti dall'esplorazione presso il progetto Monitor Copper-Gold, in particolare dal sito Anvil vicino a Taft, Idaho. I campionamenti sotterranei hanno evidenziato una mineralizzazione di rame ad alto tenore del 3,1% Cu su 0,3 metri nell'accesso Anvil. La mineralizzazione si presenta all'interno di vene fessurali a forte inclinazione lungo strutture di secondo ordine in una zona di taglio prominente.
Il programma di esplorazione ha confermato la presenza di molteplici vene fessurali di rame in un sistema complesso, con vene che si estendono tipicamente fino a 1,8 metri di larghezza. Le vene ricche di rame contengono calcopirite, pirite, calcite, siderite e quarzo, con alterazione idrotermale che si estende per centinaia di metri nelle rocce circostanti. I campioni sono stati analizzati presso Christofferson Labs e American Analytical Laboratories, seguendo i protocolli QA/QC standard del settore.
Transatlantic Mining (TSXV: TCO) ha reportado resultados prometedores de exploración en el proyecto Monitor Copper-Gold, específicamente en el prospecto Anvil cerca de Taft, Idaho. El muestreo subterráneo reveló una mineralización de cobre de alta ley del 3.1% Cu sobre 0.3 metros en el acceso Anvil. La mineralización ocurre dentro de vetas fisuradas con fuerte inclinación a lo largo de estructuras de segundo orden dentro de una zona de cizalla prominente.
El programa de exploración confirmó múltiples vetas fisuradas de cobre dentro de un sistema complejo, con vetas que típicamente se extienden hasta 1.8 metros de ancho. Las vetas ricas en cobre contienen calcopirita, pirita, calcita, siderita y cuarzo, con alteración hidrotermal que se extiende cientos de metros hacia las rocas adyacentes. Las muestras fueron analizadas en Christofferson Labs y American Analytical Laboratories, siguiendo los protocolos estándar de control de calidad (QA/QC) de la industria.
Transatlantic Mining (TSXV: TCO)는 아이다호 주 태프트 인근의 Monitor Copper-Gold 프로젝트 내 Anvil 탐사 지역에서 유망한 탐사 결과를 보고했습니다. 지하 샘플링에서 Anvil 갱도 내 0.3미터 구간에서 3.1% Cu의 고품위 구리 광화가 확인되었습니다. 광화는 두 번째 차수 구조 내의 급경사 균열 정맥 내에 위치한 두드러진 전단대에서 발생합니다.
탐사 프로그램은 복잡한 시스템 내 여러 구리 균열 정맥을 확인했으며, 정맥은 보통 최대 1.8미터 폭까지 확장됩니다. 구리 함유 정맥은 황동광, 황철석, 방해석, 적철석, 석영으로 구성되어 있으며, 수백 미터에 걸쳐 주변 암석에 열수 변질이 나타납니다. 샘플은 Christofferson Labs와 American Analytical Laboratories에서 업계 표준 QA/QC 절차에 따라 분석되었습니다.
Transatlantic Mining (TSXV : TCO) a annoncé des résultats d'exploration prometteurs pour le projet Monitor Copper-Gold, au niveau du prospect Anvil près de Taft, dans l'Idaho. Des échantillonnages souterrains ont révélé une minéralisation en cuivre à haute teneur de 3,1 % Cu sur 0,3 mètre dans la galerie Anvil. La minéralisation se trouve dans des veines de fissures à fort pendage, le long de structures secondaires au sein d'une zone de cisaillement importante.
Le programme d'exploration a confirmé la présence de multiples veines de fissures de cuivre au sein d'un système complexe, les veines s'étendant généralement jusqu'à 1,8 mètre de largeur. Les veines riches en cuivre contiennent de la chalcopyrite, de la pyrite, de la calcite, de la sidérite et du quartz, avec une altération hydrothermale qui s'étend sur plusieurs centaines de mètres dans les roches encaissantes. Les échantillons ont été analysés par Christofferson Labs et American Analytical Laboratories, en suivant les protocoles QA/QC standards de l'industrie.
Transatlantic Mining (TSXV: TCO) hat vielversprechende Explorationsergebnisse von seinem Monitor Copper-Gold-Projekt am Anvil-Vorkommen nahe Taft, Idaho, gemeldet. Unterirdische Proben zeigten eine hochgradige Kupfermineralisierung von 3,1% Cu über 0,3 Meter im Anvil-Stollen. Die Mineralisierung tritt in steil einfallenden Spaltadern entlang von Sekundärstrukturen innerhalb einer markanten Scherzone auf.
Das Explorationsprogramm bestätigte mehrere Kupferspaltadern in einem komplexen System, wobei die Adern typischerweise bis zu 1,8 Meter breit sind. Die kupferreichen Adern enthalten Chalkopyrit, Pyrit, Calcit, Siderit und Quarz, mit hydrothermaler Alteration, die sich hunderte Meter in das Nebengestein erstreckt. Die Proben wurden in den Christofferson Labs und American Analytical Laboratories analysiert, unter Einhaltung der branchenüblichen QA/QC-Protokolle.
- None.
- Limited sample width of only 0.3 metres in recent high-grade findings
- Copper-rich veins are generally less than 5 meters wide
Vancouver, British Columbia--(Newsfile Corp. - July 21, 2025) - Transatlantic Mining Corp. (TSXV: TCO) (the "Company") is pleased to provide an update on its exploration activities at the Anvil prospect, key target within the larger Monitor Copper-Gold Project. The project is located approximately 8 kilometers south of Taft, Idaho, USA and continues to demonstrate prospectivity.
Highlights of the Exploration Program:
High-Grade Underground samples at Anvil: An outcrop sample returned
3.1% copper (Cu) over 0.3 metres.Anvil Prospect Potential: Recent underground samples at Anvil indicate multiple copper fissure veins within a complex system that are anomalous in copper and support larger Copper Fissure System in the district.
"Samples underground and confirmation of 2 orientations with copper mineralisation are encouraging for further follow up," said Bernie Sostak, CEO of Transatlantic Mining. "This supports multiple high grade copper mineralisation veins in the region. We look forward to uncovering more copper in the district with updated geophysical techniques along strike and down dip."
Geology and Mineralization
At the Anvil prospect, copper mineralization is found within steeply dipping fissure veins that form along second-order structures within a prominent shear zone, trending approximately N40W to N70W. These veins, typically can be up to 1.8 metres wide, are characteristic of the broader Coeur d'Alene mining district. In this eastern and southeastern part of the district, where the Monitor Project is situated, veins are typically copper-rich with reduced silver, lead, and zinc content, suggesting formation under higher-temperature conditions or closer proximity to the hydrothermal source. These copper-rich veins are generally less than 5 meters wide, extend to significant depths, and primarily contain chalcopyrite, pyrite, calcite, siderite, and quartz. Hydrothermal alteration, notably pervasive siderite zoning and bleaching, is a defining characteristic of the mineralized zones, with disseminated siderite sometimes extending hundreds of meters into the wall rocks.
Exploration Results
Building on this geological understanding, the Company conducted a systematic exploration program, implementing industry best practices to confirm the property's geological and mineralogical characteristics.
Initial underground sampling at the Anvil prospect yielded encouraging copper results. An underground adit returned samples up to
The historical workings at the Anvil prospect were explored, mapped, and sampled. These workings were developed along a northeast-trending mineralized structure. The workings and this northeast-trending structure intersect a distinct northwest-trending structure. All of these structures were sampled as part of the program. Samples collected were subsequently sent to Christofferson Labs, LLC. in Smelterville, Idaho, USA for analysis of gold and then to American Analytical Laboratories in Osburn, Idaho for an ICP analysis.
Figure 1: Map of the Big Elk Prospect, a subset of the Monitor Project
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Figure 2: Map of the Anvil Prospect, an underground subset of the Monitor Project (Table 1)
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Overall, the Company's exploration efforts confirmed the strike and dip of the vein mined along the Big Elk workings. Surface samples indicate the veins contain copper mineralization. Furthermore, through mapping and sampling of the Anvil working, the Company has identified additional veins within the claim block. Both the Big Elk and Anvil prospects represent historical workings on fissure veins within the larger shear zone, confirming the presence of multiple veins within the shear zone that encompasses the entire project.
Sampling, Analysis, and Quality Assurance/Quality Control (QA/QC)
All samples, are those from chip samples underground in the Anvil Adit across strike of the vein. The samples were up to 5 kilograms and were sent to Christofferson Labs, LLC in Smelterville, Idaho, USA for gold analysis. Subsequent ICP analysis was performed at American Analytical Laboratories in Osburn, ID. All sampling results for the Anvil prospect are detailed in Table 1. All analytical procedures adhered to industry-standard protocols, and results have passed internal QA/QC checks.
Table 1: Sampling across Anvil Prospect Underground Vein
| Sample ID | Sample Type | From (m) | To (m) | Length (m) | True Width (m) | Cu % | Au g/t | Ag g/t | Description |
| MON_ 241016_01 | Chip | 0 | 0.4 | 0.4 | 0.4 | 0.1 | 0.20 | 2.72 | Siderite vein dip 50 degrees |
| MON_ 241016_02 | Chip | 0 | 0.4 | 0.4 | 0.4 | 0.1 | 0.75 | 3.40 | Siderite vein dip 50 degrees |
| MON_ 241016_03 | Chip | 0 | 0.3 | 0.3 | 0.3 | 1.5 | 1.05 | 11.90 | Copper mineralised vein dip 80 degrees |
| MON_ 241016_04 | Chip | 0 | 0.3 | 0.3 | 0.3 | 3.1 | 0.20 | 1.70 | Copper mineralised vein dip 80 degrees |
| MON_ 241016_05 | Chip | 0 | 0.3 | 0.3 | 0.3 | 0.7 | 0.10 | 2.72 | Copper mineralised vein dip 80 degrees |
*Underground rockchip samples, such as those described herein, are selective by nature and are not necessarily indicative of the total average grade of mineralisation
See also,
*NI43-101: Copper-Gold-Silver Mineralization at the Monitor Mine Property, Eastern Coeur d'Alene Mining District, Shoshone County, Idaho, USA, (Ray July 2013), and
* New Release May 14, 2025
About the Monitor Claim Group:
Transatlantic Mining has numerous prospects within the greater Monitor Copper-Gold Project. At the historical Monitor mine, historical grades of up to
Qualified Person Review:
The technical information contained in this news release has been reviewed and approved by Zachary J. Black, SME-RM, a Principal for Ethos Geological Inc., who is a Qualified Person pursuant to National Instrument 43-101.
About Transatlantic Mining Corp.
Transatlantic Mining (TSX-V: TCO) is an emerging precious and base metal explorer. The Company has a focus on converting projects into mines within stable mining jurisdictions. The Company currently holds property interests including an
Cautionary Statement Regarding Forward-Looking Statements
This news release contains "forward-looking statements" within the meaning of Canadian securities legislation. These forward-looking statements include, but are not limited to, statements regarding the Company's future exploration plans, geophysical programs, and the potential for mineralization. Forward-looking statements are subject to known and unknown risks, uncertainties, and other factors that may cause the actual results, level of activity, performance, or achievements of the Company to be materially different from those expressed or implied by such forward-looking statements. These factors include, but are not limited to, risks associated with the exploration and development of mineral properties, the Company's ability to obtain necessary permits, and the availability of financing. Readers are cautioned not to place undue reliance on forward-looking statements. The Company undertakes no obligation to update or revise any forward-looking statements, except as required by law.
For further information, please contact: Bernie Sostak: bsostak@transatlanticminingcorp.com , +61 (0) 439 904 044.
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.
To view the source version of this press release, please visit https://www.newsfilecorp.com/release/259416
FAQ
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