View our ASX share price

Geology and Mineralisation

The Cameron Gold Project is located in the western part of the Archaean-age Superior Province. This highly-metal endowed geological terrane extends over most Ontario and Quebec and into the eastern part of Manitoba in Canada, as well as in Minnesota in the USA. The project itself is situated in the Savant Lake-Crow Lake Greenstone Belt within the Western Wabigoon Subprovince.

 

Geological Map of the Superior Province in Ontario with Major Gold Camps and Deposits

 

The Western Wabigoon Subprovince is dominated by mafic volcanic rocks with large felsic intrusive plutons. Mafic volcanic rocks were mainly deposited between ca. 2.745 and 2.72 Ga, with the exception and minor younger (2.713- 2.70 Ga) volcanic-sedimentary sequences. Plutonic rocks range from broadly synvolcanic batholiths (ca. 2.735-2.72 Ga) to a variety of younger batholiths and plutons (ranging in age from ca. 2.710 Ga to 2.66 Ga) (ca. 2.698-2.690 Ga) (2.69-2.66 Ga). Immature clastic metasedimentary sequences are preserved in narrow belts within volcanic sequences. They are commonly younger than the volcanic rocks, as illustrated by local unconformable relationships and age constraints indicating deposition between ca. 2.711 and <2.702 Ga. At least two phases of deformation affected supracrustal rocks of the western Wabigoon terrane (Adapted from Percival, 2007).

The geology of the Cameron Lake-Rowan Lake region of the Savant Lake-Crow Lake Greenstone Belt is dominated by the Pipestone-Cameron Fault (PCF), a crustal-scale deformation zone which trends northwest-southeast and is traceable over more than 100km of strike.

The Cameron Gold Project is located to the northeast of the PCF on the southeastern limb of the large-scale, east-northeast-trending Shingwak Lake Anticline. The Shingwak Lake Anticline is dominated by tholeiitic basalt of the Rowan Lake Volcanics, overlain by intermediate and mafic flows and pyroclastic rocks, and lesser felsic flows, tuff and sedimentary rocks of the Cameron Lake Volcanics. These units have been intruded by a series of mafic and felsic intrusive bodies.

 

Cameron Lake-Rowan Lake Regional Geology Map

 

A number of second-order structures occur as splays off the PCF, with the Cameron Lake Shear Zone (CLSZ) and Monte Cristo Shear Zone (MCSZ) being the most prominent within the Project area. The mineralisation at the Cameron Gold Deposit is hosted by mafic volcanic rocks within the northwest-trending CLSZ, which forms the contact between these lithologies and gabbro in the footwall. The MCSZ is located 5 km to the east of the Cameron Gold Deposit and is associated with the smaller Monte Cristo and Victor prospects, also at the contact of mafic volcanic rocks and gabbro.

 

Cameron Mine Lease Local Geology Map

 

Cameron Gold Project Cross Section

 

Mineralisation at the Cameron Gold Deposit comprises quartz-albite veins and breccia associated with intense silica-sericite-carbonate-pyrite alteration in a series of zones that dip moderate-steeply to the north and plunge steeply to the northwest. Gold is associated with disseminated pyrite, with high sulphide concentrations generally corresponding with higher grades. Visible gold is present, but rare.

 

Cameron Mineralisation - Quartz-Albite Vein Breccia with Silica-Sericite-Carbonate-Pyrite Alteration

 

 

Cameron Mineralisation - Visible Gold in Quartz-Albite Vein Breccia

 

Exploration work undertaken to date has delineated mineralisation over a strike length of more than 1,000 metres and to a vertical depth of more than 700 metres. The mineralisation open along strike to southeast (9.2m@ 8.39 g/t gold from 199.9m), northwest (8.1m @ 2.52 g/t gold from 13.9m) and at depth (3.1m @ 10.95 g/t gold from 779.4m). The mineralisation outcrops at surface, or is blanketed by a veneer of glacial till usually a few metres deep.

The Cameron Project area contains 12 known gold prospects and occurrences. Several of these, including the Monte Cristo and Victor prospects have had significant gold mineralisation intersected in previous exploration drilling. Like the Cameron Gold Deposit, most of the other gold prospects are associated with a similar style of mineralisation and alteration and are commonly associated with shear zones developed at near lithological contacts with competency contrasts.