The Huckleberry property is located 100 kilometers north of the Community of Schefferville, in the province of Quebec. Geographically, it is situated in Southern Labrador Trough of the Paleoproterozoic New Quebec Orogen, southeastern Churchill Province. The Huckleberry Property currently consists of 57 claims covering 25 km2.
Huckleberry is being explored as a large-scale magmatic copper target with associated nickel and PGE. However, Ni-Cu-PGE deposits are sometimes zoned with nickel-rich cores grading to copper-rich zones at the top and peripheries. If such a nickel-rich portion exists at Huckleberry, it may be contiguous with the copper rich portions at depth or in a separate body.
In June of 2014, the Company staked the Huckleberry property in the southern Labrador Trough based on its potential to host Cu-(Ni)-PGE mineralization. Three samples from a gossanous outcrop measuring approximately 50 x 150 metres and located at the contact between an olivine melagabbro and porphyritic gabbro assayed 1.3% Cu and 0.54 g/t Pt+Pd, 1.2% Cu and 0.59 g/t Pt+Pd and 0.6% Cu and 0.45 g/t PGE.
The underlying geology of Huckleberry is dominated by a thick sequence of glomeroporphyritic gabbro (GPG). The GPG is intruded by various other mafic phases but most notably by a layer of olivine melagabbro (OMG). In the central portion near the Discovery zone this fractionates upward to an olivine gabbro, gabbro and ultimately leucogabbro. Anorthosite layers have also been observed and may represent the original composition of the GPG prior to the crystal pile being disturbed and the resulting formation of glomerocrysts. At some locations the OMG transitions downward to a serpentinized peridotite.
The principal mineralized zone is located in the western portion of the property and includes the Discovery Zone. Thirty-eight samples were collected from the Discovery Zone during the last program to follow up on the mineralization defined during the reconnaissance phase (press releases dated June 11, 2015). The average of all 58 samples collected from this zone (including those collected during the reconnaissance phase) is 1.2% Cu, 0.19% Ni and 0.83 g/t PGE+Au. Results from this program are given in Table I. Significantly, mineralization can now be traced continuously for a strike length of 600 m, an extension of over 400 meters from the previously reported and is up to 100 m wide. Whereas much of the previous sampling focused on the mineralized glomeroporphyritic gabbro (GPG), this phase of exploration focused on the overlying olivine melagabbro (OMG), which appears to be economically more significant.
Although much of the mineralization in the Discovery Zone is hosted in the GPG much of the mineralization in the rest of the Western Zone is hosted in olivine OMG and peridotite that form at the base of a layered sequence that intrudes an anorthosite or GPG. The OMG is often seen to be flow-banded. At all locations where the contact of the OMG with the anorthosite/GPG outcrops, it is seen to be mineralized. Two such outcrops were discovered north of the Discovery Zone and one to the south and as such the mineralization in the Western Zone can now be traced for a 3 kilometer strike length. Forty-seven of 64 samples collected from the Western Zone during this program assayed greater than 0.3% Cu with an average grade from those samples of 1.14% Cu, 0.24% Ni and 1.03 g/t PGE+Au.
A large gabbro xenolith (approx. 0.5-1 meter long) hosting semi-massive sulphides was observed at one location in the Discovery Zone at the base of the OMG. A sample of the xenolith assayed 1.17% Ni, 0.83% Cu and 1.08 g/t PGE+Au. The presence of the xenolith indicates that nickel-rich, semi-massive sulphides exist somewhere nearby in the magmatic system.
Also of importance is the discovery of a large angular norite boulder within the property consisting of an anorthosite breccia cemented by chalcopyrite that assayed 4.04% Cu and 0.92 g/t PGE+Au. The fragments of anorthosite that compose the breccia also contain finely disseminated chalcopyrite and are identical to mineralized anorthosite seen elsewhere within the property. Thus the boulder is very likely to originate from within the Huckleberry property and suggests that there is more high-grade copper mineralization yet to be found at Huckleberry.
Geological observations indicate the magmatic history of the host rocks to the mineralization at Huckleberry to be dynamic, violent, episodic and long-lived. These are common characteristics of many large scale deposits of all types. The evidences are the presence of: 1) various magmatic breccias throughout the intrusion; 2) flow-banding in some of the ultramafic layers; 3) multiple phases of mineralization; 4) a variety of mineralized host rocks; 5) xenoliths including mineralized metasedimentary country rock and nickel-rich semi-massive sulphides; and 6) sulphide globules.
Detailed assay results from the 2014 and 2015 grab sampling programs at Huckleberry are set forth below:
A government sponsored airborne electromagnetic (EM) survey was flown over the entire region in 1986. A distinct, moderately strong EM anomaly is located 150 meters east of the Discovery Zone. It is parallel to the mineralization and can also be traced for 1.2 kilometers. As the amount of disseminated sulphide (average 6%) seen in outcrop is insufficient to cause an EM conductor, the presence of the EM anomaly strongly suggests that the amount of mineralization seen on the surface increases to the east (down-dip).