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| Ron Gold Group - Property Geology |
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A simplified geological map of the Ron property and immediately surrounding area is shown in Figure 3. It is taken from the regional mapping of Höy and Andrew (1989) with modifications from Wehrle (2004). The property is underlain mainly by the Eagle Creek plutonic complex, referred to as a pseudodiorite by Mulligan (1952). It intrudes mafic volcanic rocks of the Early Jurassic Elise Formation and is cut by prominent northwest trending shears, part of the Silver King shear zone, that extends more than 40 km to the south. A normal fault, referred to as the Mount Verde fault appears to define the southwestern edge of the intrusion (Höy and Andrew, 1989). Analyses of samples collected by Wehrle (2004) are also shown on the map (Figure 3).
The Eagle Creek plutonic complex is generally a medium to coarse-grained mafic to intermediate intrusion, in part gneissic; locally it grades into leucocratic hornblende syenite (Mulligan, 1952) and occasionally incorporates ultramafics phases. Contacts of the intrusion with the Elise Formation are generally sharp, locally marked by coarse grained clinopyroxenites. The age of the intrusive complex is not known. It is cut by phases of the Middle Jurassic Nelson intrusions and by the Silver King shear zone, interpreted to have occurred ca. 175 Ma, and hence Höy and Dunne (1997) tentatively assigned the complex an Early Jurassic age. The Elise Formation, the central volcanic succession of the Early Jurassic Rossland Group, comprises mafic flows and mafic lapilli and crystal tuff (Höy and Dunne, 1997, 2001). Higher in the succession, more andesitic lapilli tuffs predominate, with abundant plagioclase and augite bearing volcanic clasts. These are exposed along the southwestern edge of the property, typically in faulted contact with the Eagle Creek complex. Metasedimentary layers, comprising siltstone and argillaceous siltstone, are relatively rare in the Elise Formation. The structure of the area is dominated by the Silver King shear zone, a broad zone of intense shearing and alteration that extends from the area of the Ron claims and the Eagle Creek plutonic complex southward to south of Salmo, a distance of 40 kilometers. The shear zone follows approximately the core zone and western margins of an overturned, west-dipping synclinal fold, the Hall Creek syncline. Numerous mineral showings occur within the zone, the most notable the Silver King silver-lead-zinc veins approximately 8 km southeast of the Ron group. As noted below under "Mineralization", several mineral deposits and showings occur within or immediately adjacent to Ron Claim group. Some of these are recorded in BC Minfile, others were discovered by Wehrle (2004) and others by prospector, Tom Kennedy in 2008. Figure 3: Geology of the Ron claim Group, modified from Höy and Dunne, 2004.
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