District Metals: Reports on 3D Modeling of Mineralized Zones at the Former Tomtebo Mine and Changes to the Board
October 7, 2020 – District Metals Corp. (TSX-V: DMX) (FRA: DFPP); (“District” or the “Company”) is pleased to report on the Leapfrog 3D modeling of polymetallic mineralized zones at the former Tomtebo Mine located within the Company’s Tomtebo Project in the Bergslagen Mining District of south-central Sweden.
Mineralized zones at the Tomtebo Mine were modeled from historical mine maps and drilling that was conducted by state-owned Stora AB from 1916 to 1972. District is utilizing this model to prioritize drill targets, which will form the basis for a drill permit application to be submitted in November 2020 for an early-2021 drill program. The drill program will focus on confirming historic intersections, and stepping out from numerous mineralized zones that are open along strike and at depth as a prelude to potentially developing an NI 43-101 mineral resource, and to exhibit the greater potential that may exist.
3D Model Highlights
- A total of 33 polymetallic mineralized domains within four zones were modeled based on drill assays and semi-massive to massive sulphides logged from historical drill holes.
- The majority of modeled mineralized zones are from surface to the -200 m level exploration drift. High grade copper-gold dominant mineralization (feeder zone) in the south transitions to high grade silver-zinc-lead dominant mineralization (distal zone) that is developed in the fold hinge to north and east.
- The Gamla Gruvans, Gårdsgruvans, and Steffenburgs zones (Figure 1) trend southwest to northeast for approximately 710 m with widths from 190 to 385 m. The Oscarsgruvans zone (Figures 1 and 2) trends west to east for approximately 240 m with widths from 35 to 95 m.
- The southwest to northeast trend displays continuity of southwest plunging high grade mineralization, which provides excellent potential for significant mineralization at depth and along strike.
- The modeled mineralized zones at Oscarsgruvans (Figure 2) and Steffenburgs (Figure 3) support drilling at 50 m centers that has good potential to develop an NI 43-101 mineral resource.
- Drilling at the Oscarsgruvans zone will focus around historic hole TOMT65001, which returned 4.67 m at 1,087.0 g/t AgEq1 or 28.0% ZnEq2 (113.90 to 118.57 m) from surface.
- Drilling at the Steffenburgs zone will focus around historic hole TOMT70004, which returned 16.17 m at 535.7 g/t AgEq1 or 13.8% ZnEq2 horizontally from the -200 m level exploration drift.
- Drilling at the Gårdsgruvans zone will focus around historic hole TOMT16008b, which returned 3.6 m at 3.98% Cu (9.50 to 13.10 m), 4.0 m at 11.79% Cu (51.60 to 55.60 m), and 3.4 m at 2.38% Cu (68.60 to 72.00 m) from surface.
- Drilling at the Gamla Gruvans zone will initially focus around historic hole TOMT69001, which intersected 29.04 m of semi-massive chalcopyrite-pyrite (copper-gold dominant mineralization) horizontally from the -200 m level exploration drift.
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