The area is underlain by Middle Jurassic Yakoun Group rocks dominated by pyroclastic andesites and lesser massive andesite, conglomerates, volcanic sediments and argillites. These rocks are cut by quartz diorites and porphyritic felsic dikes. The dominant structure on the property is a major west northwest trending fault zone (Rennell-Louscoone fault system), with associated splays and subparallel faults. The fault system appears to control the mineralization and alteration. Clay-carbonate-sericite-silica as well as pervasive propylitic alteration occurs in a zone up to 300 metres by 350 metres. The abundance of carbonate in the area may express mobilization of the limy fraction of the underlying Juro-Triassic Kunga Group. Disseminated, massive and fracture filled pyrite occurs within a zone of altered andesite, agglomerate flows, and pyroclastics with intercalated argillite. The zone also includes a 5 to 10-metre mineralized northwest trending fault zone. A sample assayed 13.7 grams per tonne gold (Assessment Report 11533). A post mineral fault, trending northeast, is interpreted to offset the west part of the mineralized zone 500 metres to the southwest. The termination of the mineralization is interpreted to be caused by pinching and swelling along a series of subparallel northwest trending faults. A 3.0-metre chip sample of the altered zone assayed 0.93 gram per tonne gold and a 1.0 metre sample assayed 0.96 gram per tonne gold and 0.68 gram per tonne silver (Assessment Report 15325). Misty Mountain Gold Ltd. flew airborne radiometrics, resistivity and magnetometer surveys over the showing in 1995 while exploring a large block of claims surrounding the Sol property.
|