The Wadi Qutabah nickel, copper, cobalt, platinum project is located in the northern part of the same-layered mafic complex that hosts the Suwar nickel deposit (described above). It lies some 23 km north of Suwar and 60 km northwest of Sana’a.
At Wadi Qutabah, five iron sulphide horizons have been found within layered gabbroic rocks. These iron sulphide horizons are conformable with the primary layering of the gabbroic rocks and occur over an area of 23 km2. The best exposed horizon is the middle horizon and this can be traced in outcrop for more than 19 km. It is likely that the two lower horizons are of similar dimensions but these are largely concealed. The two upper horizons are significantly eroded and are of limited lateral extent.
Based on assay results for composite chip samples taken from the exposed horizon, only traces of platinum group elements were found in these samples but as strongly anomalous platinum occurs within drainage concentrates, there is a possibility that the platinum rich part of the deposit has yet to be discovered. As platinum group metals and nickel can partition during the intrusion of layered mafic complexes a drill program testing the vertically layered mafic complex to locate possible platinum horizons was undertaken.
To test the continuity of the flat lying sulphide horizons five vertical holes totaling 686 meters were drilled. These five holes intersected a total of 323.80 meters of weak (<10%) disseminated sulphides, 20.08 meters of moderate (10-50%) sulphide mineralization and 6.80 meters of semi massive to massive sulphide mineralization. These mineralized sections will be analyzed for nickel-copper-cobalt and platinum group elements. Cantex geologists are pleased with the extent and continuity of the sulphide mineralization.
Six additional holes were drilled to identify the source of the high platinum group element values found in three heavy mineral stream samples. The highly anomalous samples were from three adjacent streams draining a restricted portion of the Wadi Qutabah area. The six holes were designed to test the stratigraphy of the watershed of the anomalous streams. Several sulphide rich zones were intersected.
In June 2013, the Company elected to relinquish the exploration license .The significant work conducted by Cantex, along with joint venture partners Falconbridge Ltd and Vale International SA, has not shown Wadi Qutabah to contain sufficient grade to be mined profitably.