The targets extend across 2 km of the heavily mineralized Queen vein.
Summa Silver Corp. provided an update on drilling planning for the Mogollon, New Mexico project.
Key Highlights:
- Known high-grade mineralization: All targets along the Queen vein have been previously de-risked by incremental and reconnaissance style drilling, highlighted by:
- 448 g/t AgEq* (129 g/t Ag, 3.88 g/t Au) over 31 m (consolidated, MOG22-05)
- 640 g/t AgEq (306 g/t Ag, 4.26 g/t Au) over 9.9 m (consolidated, MOG22-10)
- 433 g/t AgEq (134 g/t Ag, 3.66 g/t Au) over 23.2 m (consolidated, MOG22-16)
- 1,133 g/t AgEq (693 g/t Ag, 8.8 g/t Au) over 1.65 m (Eberle, MOG23-21)
- 393 g/t AgEq (64 g/t Ag, 3.9 g/t Au) over 7.4 m (South Queen, MOG23-20)
- Strong gold and silver recoveries: Two representative samples of previously reported composite veins from Consolidated returned recoveries ranging from 96.2% to 97.9% for silver and 97.7% to 97.8% for gold from flotation concentrates.
- All objectives are open to expansion: All mineralized zones along the Queen vein are open to expansion and require progressive drilling to fully evaluate grade and scale potential.
- Planned systematic drilling : Data from infill and exit drilling at key targets will be used to fully investigate grade continuity along strike and downstream to facilitate future mineral resource estimates.
CEO Galen McNamara said work at Mogollon has shown the Queen vein is extensively mineralized with high-grade silver and gold in multiple zones over more than 2 km.
“Systematic drilling is now required to quantify ounces step by step as targets are drilled and developed across the district in the coming months and years. With 77 km of vein and prospective structure present on the project, we are confident in the large-scale ounce potential here and look forward to continuing to unlock value. in this historic American silver district,” he said.
The objectives
Priority targets at Mogollon are dispersed throughout the complex and highly prospective Queen vein system covering 2.0 km strike length from the southern Deadwood target to the northern Consolidated target.
The high-grade mineralization along this trend is hosted in a complex, structurally controlled epithermal system consisting of calcite + quartz veins, quartz-rich breccias with quartz laminae, colloform bands and local silver-bearing sulphides. The Queen vein and related extensions have been traced in the Mogollon Project for an additional 5.5 km, where other known targets have not yet been tested.
Priority drilling targets include:
- Consolidated: The Consolidated target is centered on the historic Consolidated Mine and has been tested by the company for untapped extensions of mineralization along a strike length of approximately 500 m and a dip extension of approximately 350 m. Drilling at Consolidated was initially designed to intersect the Queen vein at 50-100m drill points to systematically investigate grade continuity north and south of historic mining developments. Many holes in two drilling programs (2021 to 2023) returned significant zones of vein-hosted high-grade silver-gold mineralization (e.g. 448 g/t silver equivalent* (129 g/t Ag, 3.88 g /t Au) for 31 m of MOG22-05 and 640 g/t silver equivalent These results demonstrate strong continuity of grades for gold and silver along the vein and within the complex vein system and describe areas. key that require additional fill and exit holes to better limit the lateral and vertical extent of mineralization.
- South Queen and Eberle: The most recent drilling program at the Mogollon project was designed to test the mineralization potential of the South Queen and Eberle targets located along 350 m of the Queen vein, approximately 1.2 km south of the Consolidated target. The South Queen target focuses on the structural intersections between the east-west trending Last Chance and Anne E veins, and the Queen vein between the Deadwood and Eberle mines. The single hole at Queen South intersected 393 g/t silver equivalent (3.9 g/t Au and 64 g/t Ag) over 7.4 m, including 2,735 g/t silver equivalent (28.6 g/t Au and 320 g/t Ag) over 0.5 m. Eberle’s target, centered on the structural intersection between the east-west trending Maud S vein and the Queen vein system. The first hole (MOG23-21) intersected two intervals of strong silver-gold mineralization, an upper zone of 124 g/t silver equivalent* (59 g/t Ag, 0.83 g/t Au) over 2.13 m , and a lower zone – grade zone of 1,133 g/t silver equivalent* (421 g/t Ag, 8.8 g/t Au) over 1.65 m. The intersections at MOG23-21 were 30 m apart, within the hole and represent two veins and/or vein extensions. Mineralization at both targets is open along strike and drop.
- Clifton: The Clifton target comprises potential zones of high-grade mineralization beneath Clifton Adit and the Company has not yet conducted drill testing. The tunnel was driven along the Queen vein for over 400 m where limited production was recorded. Historical underground sampling along the tunnel returned grades of up to 382 g/t silver equivalent. Mineralization at Clifton remains open in all directions.
The plans
Based on previous drilling results from Summa Silver, along with extensive historical underground sampling data collection efforts, it is determined that a continued systematic approach to drilling is required at the Consolidated, Clifton and South Queen targets.
The focus on all three objectives will be to better define the extent and continuity of vein-hosted mineralization. Drilling will be planned at drill points spaced 50-100m apart along the vein and the resulting data will be used to inform and facilitate future mineral resource estimation.
The company will announce detailed plans for the next resource-style drilling program at Mogollon once the wells are completed and budgets are established. Drilling is expected to begin later in the third quarter of 2024.
