Nkasi Gold & Copper

PL 9854/2014 (100%)

AfricanCR’s Tanzanian subsidiary company, Kani Exploration Limited (Kani) was awarded the prospecting license PL 9854/2014 on the 2nd July 2014 for a renewable term of 4 years. The lease area is 111.46 sq.km in size and is located in the Nkasi district within the Rukwa region of the western part of Tanzania. The lease area consists largely of dense virgin forest with little to no human activity occurring on it except to the extreme west of its boundary.

Location of Prospecting Lease

PL 9854 Location of Prospecting Lease (Click image to enlarge)


The Rukwa region is endowed with a number of mineral resources which still remain to be developed. Known metallic mineral occurrences include gold, base metals, REE, heavy minerals (HM) and niobium. Non-metallic commodities of economic significance include: coal, salt, gemstones, pozzuolana, mica, kyanite and limestone. Further occurrences of diamond, diatomite, kyanite, mica and saltpetre have also been identified. However, only a few of these resources have been explored in detail and current available information is very limited.

In the lease area, Copper and Lead occurrences have been observed from a stream sediments sampling and analysis program conducted during the 1970 – 1980’s by USSR geological mapping provider Technoexport.

Kani has conducted a preliminary reconnaissance geological survey during December 2014 for the purpose of following up on those observations as well as identifying other target areas within the lease for further follow-up analysis. A later program will include a detailed survey plus geochemical and geophysical surveys in anomalous areas identified.

The terrain in which the lease is located is known to host good occurrences of Gold, Copper and Galena (lead) mineralization.


During the December 2014 a field survey was conducted by Kani.  Masota Magigita (AfricanCR Geologist and Director) and Elineema Kavuta (Geologist) accompanied by their team and game warden rangers conducted a 10 day survey of the property.

Within the property boundaries disseminated sulphides (pyritization) associated with undifferentiated volcanic was encountered. Galena (lead) mineralization was also observed in the fault zone, whereby the fault zone is also brecciated and/or mylonitized. Due to seasonal wet weather a further survey is required to find other types of mineralization.

PL 9854 Granitic Gneiss Exposed Along The River

PL 9854 Granitic Gneiss Exposed Along The River (Click image to enlarge)


Galena (lead) in veinlets were encountered whereby the Galena occurs as either thin layers encrusting on the walls of the vein, or as thin bands, pockets or crystals within the vein. Many of these veins were very thin, sometimes only a few centimeters wide and often pinched and swelled along their length, sometimes forming a complex network.

Below images are of some of the Galena mineralization encountered during the survey.

PL 9854 Galena Mineralization As Veinlets

PL 9854 Galena Mineralization As Veinlets (Click image to enlarge)


PL 9854 Galena Mineralization As Pockets

PL 9854 Galena Mineralization As Pockets (Click image to enlarge)


The area was mapped regionally and most of the surveyed area had the similar geology as shown in the available geological map (see map image below). The Copper (Cu)/Galena – Lead (Pb) mineralization is thought to be hosted in lithology (local geology map QDS 187) UUF – which is made up of metamorphic units of biotite-garnet gneisses and schists and garnetiferous amphibolites. In the map all metamorphic lithologies have been combined as one unit and will require time to distinguish and trace actual available mineralization.

The field trip centered on trying to find were the USSR team during the 1970’s encountered Cu/Pb mineralization.  Whilst Pb was encountered the Cu proved elusive. A further detailed survey will be conducted during 2015 dry season.

PL 9854 Geological Team Accessing Lease On Foot

PL 9854 Geological Team Accessing Lease On Foot (Click image to enlarge)



The geology of the lease area is covered with:

– Gneiss and schist with biotite, garnet-biotite and garnetiferous amphibolite.
– Granodiorite and medium grained granite gneiss.
– Granite and syenogranite which fine-grained and porphyritic.
– Rhyolite.
– Cobbly and pebbly conglomerate, sandstone and siltstone.
– Undifferentiated volcanic and dacite.

The area has undergone the pyritization, epidotization, silicification and hematitezation alterations. Crosscutting faults have been observed.

Copper (Cu) and Lead (Pb) occurrences from the USSR stream sampling program can be identified on the below map.  Gold and other Copper occurrences occur outside of the PL area (within 20 km distance south of PL) where artisanal miners have small active workings.

Click on below image to enlarge.

Local Geology PL9854_2014

PL 9854 Local Geology (Click image to enlarge)