Foss 092F 614
Mineralization occurs as skarn type deposits with pyrite, chalcopyrite, pyrrhotite, magnetite, and bornite at the contact between the Karmutsen volcanics and Quatsino limestone.
Highlights include sample R27, which assayed 8.64% copper and 11.1g/t silver (Laanela, 1987). Rock sample VWF90-R4, which assayed 3.61% copper, and VWF90-R6, which assayed 4.45% copper (Leriche, 1990).
Fosselli Creek Road 092F 618
Locally, a 30 cm shear zone, striking 220° and dipping 80° northwest, hosts semi-massive pyrite and chalcopyrite. A select chip sample of the sulphide band assayed 1.4 % copper and 0.26 g/t gold (Leriche, 1990).
Kola (MC) Kola/MC 092F 103
At least five zones of mineralization are evident, consisting mainly of massive pods and lenses of pyrite and chalcopyrite associated with shears in andesite. The following is a description of the zones trending north:
Rex 092F 221
Locally, an area along a creek is composed of intensely pyritized and altered quartz feldspar porphyry dykes and mafic volcanics. The pyrite zone is about 240 m wide and 1370 m long. Molybdenite occurs as rosettes and bands in 1.3 cm wide quartz stringers within dykes and volcanics. Most of the mineralized material was found within a 60m length of the creek. Scattered showings of chalcopyrite were reported but considered of minor significance.
The area was prospected during the period 1996 through 2006. This work identified an extensive (3 by 5 km) halo of alteration and sulphide mineralization surrounding the showing, including veins of semi-massive chalcopyrite and pyrite mineralization (Houle, J., 2007).
Rex East 092F 619
Locally, a 0.25 m wide sulphide-chlorite-quartz vein, oriented 140° and dipping 20°, is hosted in an epidote altered basalt. Sulphides include chalcopyrite and pyrite.
Select rock grab samples (343892) yielded 0.009 % molybdenum, 13.91% copper, 0.15% zinc, 29 g/t silver and 2.713 g/t gold (Houle, 2006). Samples (J047358) assayed 10.5% copper and 23.8 g/t silver (Smith and Sanabria, 2011).
Rex Southeast 092F 629
Locally, a malachite stained, strongly kaolinite altered granitic dike is hosted by weakly epidote and carbonate altered basalt. Samples D055181 and D055182 assayed 0.604% and 0.681% copper, respectively (Smith and Sanabria, 2011).
Exploration efforts throughout the property area have been detailed in assessment work reports as far back as 1962 and includes extensive prospecting, soil sampling, silt sampling, rock sampling, limited trenching, various geophysical campaigns, as well as limited percussion and diamond drilling campaigns.
A work summary is presented in the adjacent table.
Property-wide gold, silver, and copper anomaly maps were created by performing Jenks’ optimizations on all relevant and separate populations of assay data spanning multiple sample types, including rock / chip /outcrop samples, soil samples, and moss mat / silt samples.
Jenks optimization, also known as the Jenks natural breaks classification method, is a data clustering technique used to determine the best arrangement of values into different classes by minimizing variance within each class and maximizing variance between classes. This method is particularly useful in geographic and geological data analysis as it effectively identifies natural groupings within the data. By partitioning the data into a predefined number of classes (in this case, five), Jenks optimization reduces the sum of squared deviations from the class means, thereby highlighting significant patterns and anomalies. For this property, the author applied the Jenks method to classify precious metal assay values from soil, silt, and rock samples from multiple exploration campaigns into five distinct classes, ensuring that each class represents a meaningful and statistically distinct grouping of concentrations. This approach aids in identifying areas with the highest exploration potential based on naturally occurring breaks in the dataset.
Foss/Skarn Area (North)
The Foss/Skarn area is characterized by skarn-type replacement mineralization at or near the contact of Karmutsen andesite and Quatsino limestone. Historical exploration has revealed semi-massive to massive sulphides, including pyrite, pyrrhotite, chalcopyrite, bornite, and magnetite, with respectable copper values.
Recommendations for exploration in the Foss/Skarn area includes:
Kola/MC Area (North)
The Kola/MC area features multiple mineralized zones, including steeply dipping to vertically dipping quartz calcite- sericite-chlorite-actinolite-sulphide veins. Drill intercepts have revealed copper, gold, and silver mineralization, with zones open and untested down-dip and along strike. Historical trenching and drilling have helped understand the mineralization, but the structure remains open.
Recommendations for exploration in the Kola/MC area includes:
Rex Area (South)
The Rex area features porphyry-style mineralization often associated with stockwork veining and argillic alteration. The veins and fractures in this zone can vary in dip but generally include steeply dipping structures due to the tectonic setting and intrusive activity.
While some soil sampling grids have been used previously, tighter-spaced and targeted soil sampling grids may help delineate the existing zones of interest.
Recommendations for exploration in the Rex area include an exploration program consisting of;
