Jervois’s Kilembe Area Properties comprise 5 exploration licences (“Els”) totaling 708 km2 of highly prospective land in the Kasese and Bunyangabu Districts, both bordering the Democratic Republic of Congo (“DRC”). The licences are in an area ranked by the Geological Survey of Finland (“GTK”) as the number one area for cobalt mineral exploration in Uganda.
Four of the ELs are approximately 25 kms north and 25 kms south respectively, and are on trend with, the former producing Kilembe mine which was operated by the Canadian base metals company, Falconbridge between 1956 and 1977. During this period it produced approximately 16 million tonness of ore grading 2.0% copper and 0.17% cobalt. The mineralization at and around the Kilembe mine is volcanogenic massive sulphide (“VMS”) in nature and indications are that the mineralization extends throughout, and on trend with, the surrounding area.
Current Work Program
Jervois undertook a high resolution airborne geophysical survey (helicopter-borne VTEM™) over its Kilembe area ELs. The Company hosted an Official launch for this survey in Kasese Town, Kasese District, Uganda, on March 29, 2018 which was attended by over 150 prominent government officials and community members, including the Minister of Energy and Mineral Development and that Ministry’s Permanent Secretary. The event was covered by the country’s major media outlets as there is significant ongoing interest in the Company’s high-profile programme in Uganda; Jervois is the most active foreign mining company exploring for base metals in Uganda, and its activities complement its positive engagement with government on other investment opportunities within the country’s mineral sector.
The survey was conducted using helicopter-borne VTEM™ B-Field and horizontal magnetic gradiometer geophysical surveys flown at 100-metre spacing. The V-TEM technology and survey design was specifically chosen for its effectiveness at identifying buried exploration targets that possess a similar signature to the VMS style cobalt-copper deposits at the Kilembe mine. The technology and similar surveys have led to the rapid discovery of VMS style deposits in other parts of the world, which have subsequently rapidly moved into resource definition and mine construction.
After the airborne survey was completed, ground crews conducted target validation as well as prospecting including the collection of rock grab and soil samples.
Recently two localised, surficial copper-gold showings have been discovered within the Kilembe Area exploration licenses, named Eagle and Senator respectively.
At Eagle, rock grab samples include showings of 37.8% copper and 18.2 g/t gold. Senator has showings up to 7.8% copper and 16.3 g/t gold (including 10 samples > 5.0 g/t gold). Jervois cautions that rock grab samples are by their nature selective and are not necessarily indicative of the general geology or grade within the property.
- Historic Mine – analog for 20-25 M/T deposits on trend
- Targeting buried sulphides
- Potential for new technology
- Heli-borne geophysical survey on 2 initial ELs
- 100m line spacing, 2,945 total line kms
80 “HIGH PRIORITY” TARGETS IDENTIFIED – 2 “DRILL-READY”
- 2 large conductors
- Coincidental Geochem / EM
OPPORTUNITY ACROSS RIFT VALLEY
- Historic copper / gold
HISTORIC GEOPHYSICAL MAP OF KILEMBE AREA
- Distinctive magnetic characteristics of the Buganda-Toro System rocks appear to extend eastward.
- Kilembe Mineralization. Expect sulphide mineralization conductors.
PRIORITY EXPLORATION AREAS
- If there is one VMS style deposit, there are likely more in the neighbourhood.
- The success of the Historic Kilembe Mine demonstrates the high potential of surrounding concessions.
- Targeting discovery of additional World Class Co-Cu deposits is priority.
ON TREND WITH PROVEN COBALT PRODUCER
- Historic Kilembe Mine operated by Falconbridge produced 16 million tonness of ore grading approximately 2.0% copper and 0.17% cobalt.
GEOTECH LIMITED HIGH-RESOLUTION GEOPHYSICAL SURVEY
- Heli-borne airborne geophysical survey – VTEM™ B-Field and Horizontal Magnetic Gradiometer Geophysical Surveys.
- Surveys complete ~200 sq km flown in Kasese District on two Jervois exploration licenses. 100m line spacing, 3,000 line kms executed.
- Technology and survey design specifically chosen due to previous success in discovering buried VMS style deposits.
KILEMBE – AREA MAP OF ANOMALIES
- Two high priority anomalies / drill targets discovered
- 184 additional priority anomalies (weak to strong) identified
- Targeted ground geochemistry to follow
- Initial drilling undertaken, follow up work planned