Sustainability & Environment
Company has chosen to extend its asset base by pursuing advanced exploration opportunities to complement cash flows from royalty rights.
The Filipino tenement package, in our opinion represents one of the most attractive porphyry copper targets globally available, with our particular interests being associated high grade epithermal gold systems. These areas have been accumulated over a substantial period of time and represent advanced exploration plays.
The Philippines Projects
Royalco’s Philippine exploration assets comprise those of Oxiana Philippines Incorporated and related entities.
The summaries set out below are of the principal projects.
Significant mineralisation identified within this project area by Royalco in the 2008/2009 exploration season. Porphyry copper-style mineralisation has been encountered in all holes drilled to date. Infill grid soil sampling has been completed throughout Phase 1. Drilling in the Phase 2 region has been less encouraging whilst the Phase 3 region contains the principal project area- the Cableway Prospect.
The Gambang tenement area is strategically situated within the Central Cordillera of Northern Luzon in the geological terrane known as the Philippine Mobile Belt. The mineral endowment of the belt is high due to its tectonic setting, offering world class prospectivity.
Deposits immediately north of this tenement include Far Southeast, Lepanto, Victoria, Guinaoang and Suyoc. To the south of the tenement lies the old goldfields of Baguio and the porphyries at St Tomas/Santo Ni-o, a belt stretching approximately 50 kilometres, with Gambang covering the strategic and under-explored central portion.
The Cableway Prospect is centred on the largest of a cluster of gold and copper anomalies that were defined by a soil geochemical survey. The surface alteration comprises minerals that are commonly observed at high-levels in porphyry copper-gold systems. Drillhole GBD-9, drilled at Cableway, yielded 0.27g/t Au and 0.22% Cu over a 60m interval down hole from surface, followed by another 20m interval grading 0.42g/t Au and 0.49% Cu. This drillhole shows evidence of grade increasing systematically at depth and offers significant potential to the west towards elevated geochemical sampling.
The Pao Yabbe project area is situated in the Southern Sierra Madre Ranges of Northern Luzon and adjoins the Didipio copper gold project of Oceana Gold Limited (reserves of 23.7MT @ 0.65% Cu and 1.8g/t Au)
The regional geology of the area is dominated by a sequence of early Tertiary age volcanics of alkaline composition. This sequence was intruded by suites of intrusives of both calc-alkaline and alkaline compositions in the mid-Tertiary. Base and precious metal mineralisation is associated with these intrusives. Modern mineral exploration commenced in the area in the 1980s and exploration by Oxiana commenced in 1998. Geochemical, geological and geophysical exploration programs have resulted in the delineation of three main prospect areas in the north of the project area, Ambedbed, Manidyo and Digyan, and one in the south, Yabbe.
There is good exploration potential for high-sulphidation style Cu-Au mineralization and deeper porphyry Cu-Au mineralisation within the Pao-Yabbe tenement areas.
A chip sample from the Manidyo vein assayed 49.42g/t Au, 348g/t Ag, 3.94% Cu , 1.7% As.
Beginning in 2012, Royalco has been acquiring tenements in the south east of Uganda.
Royalco has received approval for four tenements while a further three are pending.
Geochemical sampling is in progress on these granted tenements. Despite unseasonal rain this program should be completed by the end of June.
These tenement areas encompass prospective Nyanzian Greenstones in south-east Uganda, flanked in part by younger intrusives. This terrain is considered prospective for Archean orogenic-style gold mineralisation similar to that found in Kenya, to the east, and at operating mines in the Lake Victoria Goldfields in Tanzania on the south-western side of Lake Victoria.