Carbonate Replacement Deposit (CRD)

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Palamina Expands Silver, Copper, Manganese Footprint at the Galena Project
Newsfile· 2025-08-25 12:30
Core Insights - Palamina Corp. has expanded its soil and subcrop sampling program at the Galena Silver Copper Manganese Project, utilizing a portable XRF analyzer to further define mineralized zones [1][3] Group 1: Project Developments - The expanded XRF soil sampling indicates the presence of a large hydrothermal system in the Tacaza formation volcanic rocks, supporting two strong geochemically anomalous trends [3] - A total of 730 samples were collected during the second XRF soil sampling campaign, delineating two distinct mineralized anomalies over 3 km by 1.5 km [7][11] - The company plans to conduct further XRF soil sampling and a property-wide gravity survey to prioritize drill targets, as the Galena project has not yet seen any drilling [15] Group 2: Mineralization Details - Mineralization at Galena occurs along veins, fractures, and within autobreccia matrix, hosted in Miocene-aged Tacaza Formation volcanic flows [4] - Previous rock samples from the Rosa and Azul zones returned significant values, including up to 1,135 g/t Ag, 5.2% Cu, and 0.69% Mn [5] - XRF values from the Tertiary volcanics at surface graded up to 440 g/t silver, 0.6% copper, and 2.7% manganese [7] Group 3: Geological Context - The Cretaceous-aged Ayabacas formation limestone underlies the Miocene volcanic sequence, with a limited Induced Polarization study mapping the limestone contact [5] - A significant manganese anomaly covers the area between the Rosa Zone and the Verde Zone, indicating potential for blind CRD mineralization similar to Berenguela and Santa Barbara [11]
Questcorp Mining Completes 25 Percent of Maiden Drilling Program at the La Union Gold & Silver Project in Mexico
Newsfile· 2025-08-19 07:15
Core Viewpoint - Questcorp Mining Inc. has completed 25% of its maiden drilling program at the La Union Gold & Silver Project in Mexico, indicating progress in exploration efforts aimed at identifying significant gold deposits [1][3]. Exploration Progress - The company is leveraging recent exploration work by Riverside Resources Inc. to enhance understanding of the geological structure and stratigraphy at La Union, focusing on a large potential gold discovery [3][4]. - The initial drilling program consists of 1,200 to 1,500 meters, with 300 meters already completed, targeting carbonate-hosted replacement deposits (CRD) [8][12]. Financial Commitment - Questcorp has committed an initial C$1,000,000 for the exploration program, part of a larger C$5,500,000 work commitment contingent on exploration results [5][16]. Drilling Targets - The drill program targets four main areas: Union Main Mine Area, North Union Mine Area, Cobre Mine Area, and Central Union Area, focusing on structural interpretations and mineralization potential [6][15]. - The program aims to evaluate the scale of alteration and indications of a mineralized system, with follow-up drilling planned based on initial results [6][11]. Geological Context - The La Union Project is characterized as a carbonate replacement deposit hosted by Neoproterozoic sedimentary rocks, with significant historical mining activity indicating potential for large-scale discoveries [12][10]. - Historical mining targeted upper oxide zones, suggesting that underlying sulfide zones are compelling drill targets for further exploration [11][12].
Questcorp Mining and Riverside Resources Announce Commencement of Maiden Drilling Program at the La Union Gold & Silver Project in Mexico
Newsfile· 2025-08-06 07:15
Core Viewpoint - Questcorp Mining Inc. has commenced its maiden drilling program at the La Union Gold & Silver Project in Mexico, marking a significant milestone in the project's development [2][5]. Exploration and Drilling Program - The drilling program aims to evaluate the scale of alteration and indications of a mineralized system across more than four different areas, with initial drilling focusing on stratigraphic and orientation purposes [6][7]. - The initial phase of the drill program will consist of one to three holes per area, totaling over 1,500 meters of diamond core drilling across six holes, each averaging 250 meters in depth [7][12]. - The program targets carbonate-hosted replacement deposit (CRD) styles of mineralization, with a focus on structural features that may have served as mineralizing conduits [7][12]. Historical Context and Project Background - The La Union Project has a history of exploration and production, having previously yielded 50,000 ounces of gold, but has never been drilled until now [5][10]. - The project is located in the western Sonora Gold Belt and has been advanced through surface access agreements and drill permitting, making it a turn-key exploration opportunity for Questcorp [8][9]. - Historical mining targeted upper oxide zones, while the underlying sulfide zones represent immediate drill targets for further exploration [10][12]. Financial Commitment and Strategic Partnerships - Questcorp has entered into a definitive option agreement with Riverside Resources, acquiring a 100% interest in the La Union Project, and has committed an initial C$1,000,000 for exploration, part of a larger C$5,500,000 work commitment [5][6]. - Riverside Resources has played a crucial role in advancing the project, consolidating mineral claims and conducting exploration work that has improved the understanding of the area's geology [4][9]. Geological Features and Mineralization Potential - The La Union Project features favorable limestone host rocks and extensive alteration footprints, with mineralization styles similar to those at the Hermosa Project in Arizona [11][12]. - The project is characterized by high-grade metal content, with highlight grades of 59.4 grams per metric tonne (g/t) gold and 833 g/t silver, indicating significant potential for large-scale discoveries [18].
Silver North Reviews Tim Drill Program Results & 2025 Plans
Thenewswire· 2025-05-26 12:00
Core Insights - Silver North Resources Ltd. has reported successful results from the 2024 drilling campaign at the Tim Project, confirming the presence of a Carbonate Replacement Deposit (CRD) style system [2][6] - Coeur Silvertip Holdings, Ltd. is executing and funding the exploration under an option agreement, which allows Coeur to earn an initial 51% interest in the Tim Project, potentially increasing to 80% [1][8] - The best drill intercept from the 2024 program returned 3.39 meters of 52.8 g/t silver, 0.28 g/t gold, 0.11% lead, and 0.27% zinc [2][5] Exploration Details - The 2024 drilling program involved 2,250 meters of drilling across six holes, primarily targeting the Wolf Fault [3][6] - The program confirmed the presence of permissive host rocks, including the Rosella Formation Limestones, which are conducive to deposit formation [2][6] - Coeur plans to conduct follow-up drilling based on the 2024 drilling and geophysical data to identify potentially productive areas within the Tim CRD system [3][8] Financial and Operational Terms - Coeur is required to complete a minimum of $3.55 million in exploration expenditures and make cash payments totaling $275,000 to Silver North by December 31, 2026, to earn the initial 51% interest [8] - Coeur can increase its interest to 80% by making additional cash payments of $100,000 per year in 2027 and 2028, completing a positive feasibility study, and notifying Silver North of its intention to develop a mine by December 16, 2028 [8] Notable Drill Results - Five out of six holes successfully tested the Wolf Fault or its splays, with intersections ranging from approximately 0.5 to over 6.0 meters, showing anomalous silver, lead, zinc, and pathfinder elements [5][6] - TIM24-Pad01-001 intersected a massive pyrrhotite interval with blebs of scheelite and anomalous results for silver, gold, lead, zinc, bismuth, tellurium, and tungsten [5][6] Company Overview - Silver North's primary assets include the 100% owned Haldane Silver Project and the Tim Project, which is under option to Coeur Mining, Inc. [10] - The company is listed on the TSX Venture Exchange under the symbol "SNAG" and trades on the OTCQB market in the United States under the symbol "TARSF" [11]