Curiosity Drill Program CORE Drilling Collaboration Final Report February 2015

Abstract

Co-funded drilling commenced in the Curiosity region on October 11th, 2014 targeting southeast IP target, the stronger anomaly of the two. The drillhole intersected strongly foliated and sheared felsic volcanics along with chlorite altered clastic sediments trending east-west. No significant mineralisation was intersected within the strongly chloritic and hematite altered WNW trending shear zone, and it is unclear whether the IP anomaly has been explained and properly tested. The WNW trending nature of the geology observed in the drillhole is opposite to that seen 700m to the north at the Explorer 108 deposit and is indicative of the structural complexity throughout the region. A second drill hole was completed on the 25 November, 2014, 480m to the Northwest of the first hole, targeting another IP anomaly directly above the southern magnetic peak with encouraging results. A 13m wide (downhole) sulphide mineralised shear was intersected approximately 480m down the hole with a 2-3 m zone of semi massive sulphide including pyrite, Galena, Chalcopyrite and Sphalerite. The remaining 10-1 m included a talc-rich shear with abundant galena and sphalerite rich stringers before passing into strongly chlorite altered sediments. The zone returned a strong intercept of 11.7m at 3.73 percent Pb, 4.86 percent Zn, 33g-t Ag, 1.02 g-t Au and 0.24percent Cu within the strongly chlorite altered sediments below the shear zone, a small raft (20cm) of bornite was also intersected (0.53m at 12.4 percent Cu, 492 g-t Ag, and 0.37g-t Au), which is suggestive of a larger copper system nearby. The results are extremely encouraging and have similarities to feeder structures observed below the Explorer 108 deposit to the north. Structural analysis along with follow-up programs including downhole EM will aid significantly in future drill targeting. The results have reinforced confidence in the exploration methodology applied by Castile in the Rover Field (i.e. anomalies defined through moderately spaced airborne magnetics in addition to terrestrial gravity, followed-up by deep-penetrating Heli-TEM and subsequently ground based 3D IP modelling prior to drilling). It is hoped that moving forward this strategy can be further refined in an effort to better focus high cost drilling under cover in the Rover - Explorer area.