Flat Gold Project Exploration Drilling At Four Target Areas

VANCOUVER – Tectonic Metals Inc. reported on regional exploration drilling at four target areas on the Company’s flagship 99,800-acre Flat Gold Project in Southwest Alaska. These results are highlighted by the discovery of at-surface, high-grade gold mineralization at the Black Creek Intrusion Target located six kilometres (km) north of the Company’s core Chicken Mountain intrusion.
Tectonic drill hole CMR25-059 returned 4.50 g/t Au over 48.77 metres (m), including a high-grade core of 7.79 g/t Au over 24.38 m with 15.19 g/t Au over 6.10 m, starting from surface . At present the intercepts are reported as downhole lengths, as insufficient data exists to determine true widths. Mineralization occurs as quartz veinlets and stringers hosted in hornfelsed, oxidized silltstones and intermediate dykes along the eastern contact of the Black Creek. This represents Tectonic’s first-ever drilling at Black Creek and marks the first drilling in the area since 2003, confirming a significant new gold zone that expands the known footprint of Flat’s reduced intrusion-related gold system (RIRGS).
Assay results from 20 exploration drill holes (3 diamond core holes and 17 reverse circulation (RC) holes) targeting regional intrusion targets, Black Creek, Jam, Golden Apex and the northern extension of the Alpha Bowl, are reported herein.
Black Creek is one of six kilometre-scale intrusion targets within the Flat volcano-plutonic complex. Tectonic’s first-ever drilling at Black Creek delivers: 4.50 g/t Au over 48.77 metres, including 7.79 g/t Au over 24.38 metres and 15.19 g/t Au over 6.10 metres from surface. High-grade gold drilled at Black Creek six kilometres north of Chicken Mountain and confirming the Flat gold system is not confined to a single intrusion. High-grade gold intersected in hornfelsed sediments confirms a new prospective host rock, expanding target potential across other hornfels-bearing areas, including the outer margins of the Chicken Mountain, Alpha Bowl, Golden Apex, Horseshoe and Black Creek intrusions. Drilling has now confirmed gold mineralization across five intrusions targets within the Flat volcano-plutonic complex: Chicken Mountain, Alpha Bowl, Golden Apex, Black Creek, and Jam. Alpha Bowl drilling extends Chicken Mountain-Alpha Bowl mineralized strike length to 3.3 kilometres – remains open in all directions. First-ever drilling at Jam target intersects multiple gold zones in volcanic rocks 10 kilometres north of Chicken Mountain.Results from 14 additional Chicken Mountain drill holes still pending.
“The Flat Gold Project continues to demonstrate the characteristics of a large, reduced intrusion-related gold system with multiple mineralized intrusive centers,” stated Tony Reda, President and CEO. Our first pass drilling at Black Creek is transformative for several reasons. Hole CMR25-059 returned 4.50 g/t Au over 48.77 metres with 7.79 g/t Au over 24.38 metres beginning at surface, hosted in hornfelsed sediments along the intrusion margin. Importantly, this confirms high-grade gold in a fundamentally different host rock than the monzonite-dominant mineralization we have defined at Chicken Mountain and Alpha Bowl.
Hornfelsed country rock occurs across key parts of the Flat gold system including the outer rim of the Chicken Mountain intrusion, Golden Apex, Horseshoe and Black Creek target areas. Tectonic’s discovery of high-grade gold at Black Creek provides clear proof that this lithological setting is highly prospective.
Discovering broad, near-surface mineralization at Black Creek validates that Flat’s gold mineralization is not confined to a single intrusive center. Instead, we are seeing multiple expressions of gold mineralization developed across the broader volcano-plutonic complex, both within intrusions and along their thermally and chemically altered margins. In analogous intrusion-related gold systems, intrusion-contact and hornfels-hosted zones can represent important high-grade components, and our results at Black Creek highlight the value of systematically targeting this host rock as part of our district-scale exploration strategy.
With multiple intrusion centers now demonstrating gold mineralization across varied geological settings, and with the Chicken Mountain-Alpha Bowl corridor extending to 3.3 kilometres of drilled strike, we are now starting to see the true potential of what the Flat Gold Project can deliver.”