TERRA BALCANICA RESOURCES CORP. Terra Balcanica Resources Corp. recommenced drilling of the 1.2 km wide Brezani porphyry target at its flagship Viogor-Zanik project in Bosnia and Herzegovina. The Company is recommencing diamond core drilling of the Brezani porphyry system to test a > 600 m wide conductivity anomaly at the centre of a 1.2 km wide anomalously magnetic volume of rock overprinted by potassic alteration under a gold-bearing skarn discovered in 2022.
Drilling within this electrically resistive unit returned 88.0 m of 0.61 g/t AuEq from surface. Concurrently with the Phase 2 Cumavici drilling program at Viogor-Zanik Terra’s geology team has expanded the strike length of calc-silicate hornfels at Brezani to over 800 m NW-SE and 275 m NE-SW thus expanding the volume of gold-bearing rock to drill test. Sulphide content and grain size increases to the south of the trend, indicating a possible proximity indicator to intrusive contact.
The package of calc silicates is interpreted as a mineralized shoulder to the porphyry intrusion. Conductivity profile of the Brezani target with >95th percentile magnetic anomaly. BREDD002 tested the resistive volume above an abrupt change into coincident high magnetic and elevated electrical conductivity response below 300 m depth which culminates at >60 mS/m at 450 m of depth.
Dashed line represents distance from the end of BREDD002 to the top of conductor. Moving 700 m NE from the centre of the calc-silicates, pervasive argillic alteration of a granodioritic unit crops out over 600 m strike length representing the shallowest part of the porphyry system. Within this argillic alteration newly recognized massive specular hematite veining is present, indicative of oxidized hydrothermal fluids, adjacent to gold-bearing hydrothermal breccias.
The alteration consists of a silicified groundmass and clay or vugs present after plagioclase feldspar destruction. Secondary, euhedral quartz and arsenopyrite-pyrite-galena-sphalerite can be seen infilling these vugs, offering yet another style of mineralization at the Brezani target.
