Bisie North Tin Project
The Bisie North Tin Project is located in the Walikale Territory of the North Kivu Province, in eastern Democratic Republic of the Congo. The project is located immediately north of Alphamin Resources highly successful Bisie Project.
At a glance
- Bisie North is comprised of two contiguous exploration permits, PR 13274 and PR 15130, which together cover 38.43km2.
- Agreement signed to earn 51% ownership in the project.
- A highly significant tin in soil anomaly straddles both tenements over 3,000m with indications it is associated with two parallel, northwest trending, mineralised structures roughly 500m apart. See Geochemistry section below.
- Further supported by strong copper, lead, zinc and arsenic mineralisation typical of the associated mineralisation at neighbouring Mpama North and South.
- Drilling commenced in December 22 and exploration program continuing through 2023.
The project has had no formal exploration prior to the recent geochemical soil sampling and channel sampling carried out by Congolese entity, Medidoc-RD Congo SARLU. They discovered a 3,000m tin in soil anomaly within 8km of Alphamin’s high grade (4.5% Sn) Mpama North Mine. The anomaly was identified in the area where the structures, which host the Mpama mineralisation wrap around the granite at its northern extent in an area of potentially increased dilation, as indicated on the following map.
Tin Anomaly – Geochemistry supporting the exploration program
A highly significant tin in soil anomaly straddles both tenements over 3,000m as shown in Figures 1 and 2. Early indications are that the anomaly is associated with at least two parallel, northwest trending, mineralised structures roughly 500m apart.
The north-eastern anomaly is associated with the high-grade tin in soil anomaly (>500ppm) which was defined over 500m on PR 15130 at the Mont Agoma Prospect in an area of no artisanal activity and a series of abandoned artisanal workings which lie along the same trend further to the northwest (Mont Agoma North). The anomaly is further supported by strong copper, lead, zinc and arsenic mineralisation typical of the associated mineralisation at neighbouring Mpama North and South. Strong associated zircon mineralisation supports a granite source which potentially lies to the south of the anomaly as shown in Figure 1.
A second high grade anomaly is associated with the artisanal workings at Kalayi Boeing where channel samples of the workings reported up to 1m at 11% Sn within a broader circa 10m wide zone. The south-western tin anomaly at Kalayi Boeing does not have any associated mineralisation.
Tightly spaced infill soil sampling has been planned to cover anomalous results identified to the west and northwest of 3,000m soil anomaly with potential to further extend the strike length of the dominant soil anomalies.
Drilling & analysis underway
Distinct shear zones discovered
Two distinct shear zones were intersected at Mont Agoma. A deep western shear with strong chlorite alteration and intensive sphalerite (zinc) and anomalous tin mineralisation over circa 160m downhole length (~100m true width) was intersected in drill holes MADD001 and 2 and an eastern shear zone in which low grade tin is strongly associated with copper, lead, arsenic and zircon. The zone occurs as a massive sulphide over ~10m where minor cassiterite (tin) was observed. The eastern shear zone and its associated mineralisation has the best potential to host significant tin mineralisation in future drilling.
Half core samples have been prepared for submission to COAL laboratories in Lubumbashi for sample preparation and a representative sample will be forwarded to ALS Global in Johannesburg for analysis. Results will be released as they become available.