The Rhino showing was discovered in 2003 by Roca Mines Inc. during exploration of their Foremore propert, located along the upper reaches of More Creek. The property is predominantly underlain by rock of the Devono-Mississippian Stikine Assemblage.
The showing is exposed along the steep east side of a small well-crevassed north flowing glacier. The showing consists of fine-grained massive pyrite associated with ferro-carbonate breccia located at or near the top of a limestone. Massive pyrite is up to 4 metres thick and is irregular in shape; however hand trenching has not defined the exact upper or lower contact of the mineralization. Within the hand trenches, the mineralization is underlain by purple mafic volcanics/volcaniclastics, locally incorporating limestone fragments. The massive pyrite mineralization grades into limestone with disseminated pyrite over an additional 10 metres of thickness. Along strike, the mineralization can be traced for approximately 40 metres. Farther up slope into the hangingwall are additional mafic volcanics, limestone and felsic volcanics.
The Rhino stratigraphy is interpreted to be a time equivalent to the stratigraphy that hosts the SG Zone mineralization.
Work History
In 2003, three trenches totaling 15.6m were hand mucked perpendicular to the inferred strike of the mineralization with 15 chip samples taken. The trenches cover 16 metres of strike length, and in conjunction with another mineralized zone on surface, the known strike length is approximately 25 metres. All assayed samples returned low Au, Ag, Cu, Zn, and Pb assays with the exception of one grab sample which assayed 0.49 grams per tonne gold, 10.2 grams per tonne silver (Assessment Report 27398). Down slope from the showing beyond the toe of the glacier, several massive pyrite in limestone boulders were found. All boulders returned near detection limits for Zn, Pb and Cu, however one boulder (sample 126379) assayed 3.23 grams per tonne gold and 34 grams per tonne silver (Assessment Report 27398). This boulder is described as being heavily oxidized.
In 2019, Sassy Resources Corp. completed a program of prospecting, geological mapping and geochemical sampling on the area as part of the Foremore property. An outcrop grab sample (1291724) assayed 0.284 per cent copper and 0.123 per cent zinc (Sassy Resources Corporation [2019-12-31]: Amended Independent Technical Report - Foremore Au-Ag-Cu-Zn-Pb Property, British Columbia).
See North (104G 148) for further details on Roca Mines Inc’s Foremore property.