The Feather River-BayView property is located in the Mishibishu Greenstone belt, one of six greenstone belts occupying the eastern portion of the Wawa Sub province of the Superior Geologic Province of the Canadian Shield. The other three significant greenstone belts in the eastern Wawa Sub province include the; Schrieber-Hemlo, Michipicoten, and Gamitagama all located north of and along the shore of Lake Superior, between Heron Bay to the west and Wawa to the east, a distance of 150-kilometers.
The Mishibishu Greenstone belt is approximately 60-km long and 18-km wide and is a complex assemblage of sedimentary, volcanic and intrusive rocks of Meso-archean age, divided into three lithotectonic units; the Pukaskwa-Point Isacor segment, the Miron segment and the Mishi assemblage (Williams, 1991). The Pukaskwa-Point Isacor and Miron units are dominated by complex volcanic successions while the Mishi assemblage is dominated by sedimentary rocks. The boundary between the sedimentary assemblages and the volcanic successions is marked by a system of faults and deformation zones. Four major deformation zones have been identified, the largest being the Mishibishu Deformation Zone, a zone of extensive folding, ductile shearing and brittle faulting forming an arcuate east-west structure exceeding 55-km in length and up to 1.5-km wide.
The Mishibishu Deformation Zone is divided into three sections according to alteration styles and deformation; the Western zone, Central zone and Eastern zone. The Feather River-BayView property straddles the Central and Eastern zone, the demarcation between the zones being the north-south trending Feather River fault-shear.
The Central zone is characterized by high strain and alteration intensity with a pervasive foliation striking 300o. The Eastern zone exhibits less pervasive alteration and deformation as shear zones define discrete domains. The penetrative foliation in this zone strikes 340o.
Gold bearing quartz veins are associated with all of these regional deformation zones especially in zones that exhibit intense hydrothermal alteration.
Geological Setting of the Feather River-BayView Property in the Eastern Wawa Sub province.
Map after Williams, 1991, Ontario Geological Survey Special Volume 4, part 1. Chapter 12.
Mineralization - Feather River Zone The Feather River zone, gold mineralization, is associated with sheared meta-sediments and metavolcanics within the northwest-southeast striking Mishibishu Deformation Zone (MDZ). The drilled portion of the zone was concentrated where the MDZ situated along Schist Creek intersects the north trending Feather River structure.
The description of the mineralization of the Feather River zone, from drill logs, closely resembles the mineralization of the various showings and occurrences along strike between the Mishi pit to the west and the Feather River property. Host rocks for the gold bearing units are frequently mafic, wacke schist or chlorite-sericite schist, which usually contain the maximum density of smoky, grey quartz and quartz-carbonate veins and veinlets, variably mineralized with disseminated pyrite, arsenopyrite, pyrrhotite and galena.
Thin section work has identified the host rock to be dacitic tuff, altered and sheared to a quartz-sericite ± fuchsite-carbonate-pyrite schist, (Sinclair, 2010).
In the 1987 drill campaign conducted by Granges Inc., seven of 104-holes tested 100-meters of strike length of the Feather River zone. Six of the seven holes intersected multiple sections grading in excess of 1.0 gpt gold with the best mineralization occurring in DDH M160. This hole intersected 4.71 gpt Au over 5.18-meters from 134.42-139.6-meters. This intersection included a higher grade interval of 20.47 gpt Au over 0.92-meters. The hole also contained 11-additional anomalous gold sections ranging from 0.3 to 1.22 meters which contained 1.0-1.47 gpt gold
DDH M152 was collared 43-meters southwest of M160 and drilled along the same section line. The hole was collared in mineralization and intersected intermittent sections of quartz-carbonate veining with up to 10% pyrite-arsenopyrite within the first 15.5-metres of core. Smoky, grey, quartz-calcite veins occur in highly contorted, silicified schist. Individual sections within this interval assayed from 2.17 gpt Au over 1.22-meters to 5.58 gpt Au over 0.30-meters, as well as three 0.3–meters intercepts with > 2 gpt Au. The host rock for this unit was described as a ‘finely bedded mafic siltstone’ displaying variable schistosity.
DDH M155 located 57-meters southeast of DDH M160; intersected 21.84 gpt Au along a core interval of 0.3-meters, from the interval 33.53-33.83-meters. The mineralization is associated with smokey, grey quartz-carbonate veins in a chlorite-sericite-carbonate schist. An intercept from 41.15-41.45-meters returned a value of 0.69 gpt Au. (see Table 5).
The MDZ is a map-able zone of high strain that is discordant to lithological boundaries. Where the fabric of the zone displays a notable change in the foliation direction from a strike of 1200 -1300 west of the Feather River to a strike of 1500-1600 east of the river, gold mineralization is concentrated. The area occupied by this flexure is where the three drill holes described above intersected significant gold mineralization.
Other Occurrences - Schist Creek Showing The Schist Creek showing is located 210-meters west of the Feather River zone and occurs along a northwest-southeast trending linear that passes just south of the Feather River zone. The showing was described as a 40-meter long, 1-meter wide white to grey quartz vein hosted in quartz-sericite-schist and containing 1-2% fine to medium grained pyrite, trace galena and chalcopyrite, and up to 30% arsenopyrite. Samples of the vein material assayed 1.23 gpt to 17.21 gpt gold, (Millard, 1997). Drill hole M429 was located to intercept this target at a drill depth from 30.0 to 40.0-meters. From 12.74 to 34.0-meters the hole intersected a section of sericite-chlorite-carbonate-schist, with 1-3% pyrite and traces of chalcopyrite. The best gold assay from this intersection was 0.99 gpt along 0.5-meters, with the overall intersection returning values ranging from 0.10 to 0.99 gpt gold. Holes M428 and M430 were drilled along the projected strike of the vein no further than 100-meters northwest of hole M429. Hole M428 intersected a 10-meter section from 23.0 to 33.0-meters with values ranging from 0.10 to 0.38 gpt gold. Low gold values were reported from hole M430, (Bates, 1990).
Table 7: List of Diamond Drill Holes and drill intercepts, Feather River Zone and Schist Creek Showing
No significant results
No significant results; sericite-fuchsite-chlorite schist
Anomalous gold 100-137 ppb, in four 1-meter sections
Mile Out Showing
This showing is located 850-meters southeast of the Feather River zone on claim 4245159. Anomalous gold values were identified in soil samples covering an area, 500-meters long by 150-meters wide; by two north-south oriented soil transects which were separated by 200-meters with 60-meter stations. Gold values in soils from seven samples ranged from 30 ppb to 2,870 ppb, (Bergman, 1985). Outcrop in the area is dominated by sheared metavolcanics containing 5 to 6% pyrite, intercalated with narrow interflow oxide facies iron formation. A grab sample 110-meters north of the high soil value, returned an assay of 1,200 ppb gold, (1.2 gpt), (Campbell, 2011). Approximately 55-meters north of the north interpreted limit of the anomalous gold in soils, hole M102 was collared and drilled to a depth of 202.37-meters. This hole intersected sericite-chlorite ± quartz-schist, with 1% disseminated pyrite, and variable ankerite alteration, for its entire length. The entire length of the hole was sampled resulting in 154-half core samples, none longer than 1.22-meters. The majority of the samples returned low gold values ranging from 0.02 to 0.06 gpt (20-60 ppb). The highest value was 0.11 gpt (110 ppb).
This showing is located in the southeast quadrant of claim 4261309 within a canyon formed by Arseno Creek. The showing has a strike length of 150-meters and is exposed for 2 to 4-meter widths (Harper, 1997). It has been drill tested by six diamond drill holes, four of which yielded gold values over significant widths. The results of this drilling are summarized in the table below.
Sixty surface samples collected from the showing averaged 850 ppb, the highest value being 4,400 ppb (Harper, 1997). Mineralization is hosted in a silicified fine grained mafic tuff that strikes 250o and dips 75o north. The tuff is folded about an axis that strikes 070o plunges 020o to the northwest. Quartz veining although present is weak and occurs as smokey stringers and veins up to 5 cm in width. Gold values are associated with sulphides ranging in content from 2 to 5% and consist primarily of arsenopyrite. Higher gold values are associated with higher arsenopyrite content, (Harper, 1997).
Table 8: List of Diamond Drill Holes and drill intercepts, Harper Showing
No significant results
No significant results
**Interval consist of 36.27-36.58
*Above includes 111.86-112.17
Katzenbach Lake Copper Showing
The Katzenbach Lake copper showing located 900-meters northwest of the Feather River gold zone on claim 4245158 occurs in an altered quartz-monzonite-feldspar porphyry lobe, stemming from the Mishibishu Lake stock. Copper mineralization is associated with a narrow zone of quartz stockwork veining, influenced strongly by jointing. Several 0.5-meter parallel quartz veins occur in the immediate area. Grab samples from these veins have returned assays of 0.35 gpt, 0.96 gpt, 1.85 gpt and 2.37 gpt gold, (Millard 1997). Copper values of up to 5,800 ppm occur in a 25-cm quartz vein near the margins of the porphyry and surrounding chlorite-calcite schist.
Table 9 : Gold Showings Feather River – BayView Property
UTM NAD 83
Range of Significant
Sheared mafic and
Quartz veins and stockworks proximal to
40.0 m by 1.0 m quartz vein in sericite-Carbonate-chlorite-pyrite-arsenopyrite
Silicified mafic tuff, arsenopyrite
Map location fix is based on best available information from historical reports and maps.
GPS location fix is by hand held GPS units, obtained from 2009 and 2010 programs.
For a detailed description of gold values see Section 7.0 Mineralization of this report.
Compilation Map, Feather River-BayView Property, ( See Appendix B, for magnification version).