The Property
The Rapson Bay property (100% NSR) is located in northwestern-Ontario within the fertile Stull Lake Greenstone Belt (SLGB) of the Red Lake mining district. The property currently consists of 113 mining claims (26,768 hectares) and is located approximately 60 km north of the Community of Sachigo Lake First Nation with whom the Company has signed a Letter of Agreement supporting the exploration program.

Location, Rapson Bay gold property, Northwestern Ontario.

Rapson Bay gold property, location of gold, copper and showings.
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Geology
Regionally, the Rapson Bay gold property is underlain by rocks of Sachigo sub-province of the Superior Province within the Stull Lake Greenstone Belt (SLGB), along the Stull-Wunnumman Fault Zone (SWFZ).
A secondary splay fault known as the Rapson Bay Shear Zone (RBSZ) trends westward through the Gilleran Lake to Stull Lake areas, where it bifurcates into the Monument Bay Shear Zone ("MBSZ") to the south, and the Twin Lakes Shear Zone ("TLSZ") to the north. These subsidiary shear zones are the loci for shear hosted gold occurrences including Ellard, Wynne Bay North, Little Stull Lake deposit, Monument Bay deposit, as well as historically reported gold mineralization located on the Rapson Bay property.
The property is underlain by 2.83 to 2.86 Ga mafic volcanics with lesser volcanic-derived sedimentary strata of the Archean Hayes River Group and 2.71 to 2.73 Ga sedimentary and intermediate to felsic volcanic tuffs of the Oxford Lake Group (Stone et al., 2001).
Mafic volcanic strata of the Hayes River Group include massive to pillowed flows, subvolcanic intrusions, and interflow breccias, whereas sedimentary strata include volcanic-derived wacke, sandstone and siltstone. Proximal to the trace of the SWFZ the mafic volcanics are strongly sheared and altered to chlorite+sericite+carbonate schist with trace disseminated pyrite.
Strata of the Oxford Lake Group exposed through the central portion of the property is comprised of well bedded intermediate and ash tuff, massive aphanitic volcanics and minor volcanic-derived wacke and siltstone with narrow beds of impure sulphidized iron formation. Volcanic and sedimentary strata of the Oxford Lake Group are intruded by gabbroic to dioritic and locally monzodioritic rocks of the Gilleran Lake Intrusive Complex (GLIC) in the southwest portion of the property and by granite to granodiorite to the north of the property.
The Gilleran Lake mafic intrusive complex (GLIC), situated west of the junction of the Stull-Wunnumin Fault Zone and Monument Bay Shear Zone is zoned gabbro, melanogabbro, and locally amphilobolite along its margins, to diorite, leucogabbro, anorthosite, and locally monzodiorite in the core of the intrusive. The Gilleran Lake intrusive locally exhibits decimeter-scale magmatic layering of melagabbro, leucogabbro and anorthositic gabbro, and is inferred to be co-magmatic with tholeiitic mafic strata of the Hayes River Group (Stone, 2005).
Previous and current mapping in and around the Rapson Bay property have identified a minimum of three phases of deformation in the region.
Gold mineralization within the project area is related to the regional structural corridor, the SWFZ and associated splays. This geological setting is similar to that of the Porcupine-Destor Fault system in the Timmins Gold Camp, the Cadillac Break in the Val d'Or Camp and the Red Lake Camp.
Mineralization
- A composite chip sample of strongly fractured gabbro with 3% combined disseminated and fracture-hosted pyrite and chalcopyrite collected from a shoal in Rapson Bay returned 12.09 g/ t (0.39 oz/ t) Au and 0.10% Cu over 4.0 m (sample 173433, Aurora Platinum Corp., 2002).
- Reported grab samples from Rio Canadian Exploration Ltd. (1961) ranging from 82.4 g/ t (2.65 oz/ t) Au to 124.4 g/ t (4 oz/ t) Au from a 0.9 m wide quartz vein, as well as 62.2 g/ t (2 oz/ t) Au from a sample chipped across a 0.9 m wide quartz vein located 15m to the south.
- The Stone et al., (2001) has documented seven gold (Au) occurrences, four copper (Cu) occurrences, three zinc (Zn) occurrences, and one silver (Ag) occurrence within the Rapson Bay property.
- The Rapson Bay property covers a large portion of the fertile Stull Lake Green Stone Belt, the same greenstone belt which hosts the Mega Precious Metals Inc. Monument Bay gold deposit 30 kms west with reported inferred resource estimated to be 6.3 million tonnes at 5.98 g/t Au for 1,212,000 oz contained gold at 3 g/t Au cut off grade;
- The Rapson Bay property covers a second structure that hosts the Puma Exploration/ Tanqueray Resources Ltd., Little Stull Lake gold deposit, located 22 km northwest with reported historical gold resource estimated at 750,000 tonnes at a grade of 10.3 g/ t Au.
Rapson Bay Exploration Models
Successful exploration in Goldcorp’s Red Lake Deposit within the adjacent Uchi Subprovince further to the south demonstrates several shared regional and local geological features associated with high-grade Archean gold deposits. These features include;
- District-scale faults controlling hydrothermal fluid flow;
- Pre-deformation extensional structures associated with coarse clastic sedimentary units and regional unconformities;
- Multiple phases of deformation;
- Dilational zones and shears associated with second phase fold hinges;
- Early hydrothermal alteration as ground preparation; and
- Lithological contacts acting as permeability barriers.
Lode Gold mineralization can occur in and in proximity to, quartz veins, within a wide range of rock types. A spatial association with brittle and/or ductile deformation zones is common. The gold is typically deposited from hydrothermal fluids in or in proximity to the sheared zones (Rogers et al., 1995). The Rapson Bay property has the potential to host lode gold mineralization in the form of epithermal gold deposits, greenstone-hosted quartz-carbonate vein deposits (Momument Bay, Twin Lakes), gold-rich VMS, and reduced intrusion-related gold systems (Mineral Resource Division, Government of Manitoba, 2010).

Bedrock geology, Rapson Bay gold property, Northwestern Ontario
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References
Aurora Platinum Corp. (2002). AEM Gold Project: 2002 Exploration Program Summary. Ontario Assessment File 228001.
Mega Precious Metals Inc. (2011). Press Release: Mega Update on Monument Bay, Appoints Glen Kuntz as COO. (February 17, 2011.)
Mineral Resource Division, Government of Manitoba. Northern Superior Province Mineral Deposit Types. http://www.gov.mb.ca/stem/mrd/geo/superior/mindept.html. Accessed on April 1, 2011.
Ministry of Northern Development and Mines (2008). Ontario: Gold Rules. Poster Mineral Exploration Roundup 2008. http://www.mndm.gov.on.ca/mines/ogs/Posters/Roundup_2008/PDAC_Gold_2008.pdf
Puma Exploration (2011). Little Stull Lake Project: Manitoba. http://www.explorationpuma.com/html/en/proprietes/projet.php?pro_id=7. Accessed April 1, 2011.
Rio Canadian Exploration Ltd. (1961). Diamond Drilling Report: Stull Lake. Ontario Assessment File 44781.
Rogers, M.C., Thurston, P.C., Fyon, J.A., Kelly, R.I., and Breaks, F.W. (1995): Descriptive Mineral Deposit Models of Metallic and Industrial Deposits Types and Related Mineral Potential Assessment Criteria; Ontario Geological Survey, Open File Report 5916, 241 pages.
Stone, D., Halle, L., and Pufahl, P. (2001). Precambrian Geology, Stull Lake Area. Ontario Geological Survey, Map P3450, scale 1:50 000.
Stone, D., Halle, L., and Pufahl, P. (2001). Precambrian Geology, Stull Lake Area. Ontario Geological Survey, Map P3451, scale 1:50 000.
Rapson Bay Exploration History
2010
- Completed a prospecting and bedrock mapping program.
2011
- Staked an additional 94 mining claims or 21,824 hectares of ground.
- Completed an airborne, total magnetic field survey consisting of 5,124 line kilometers.
- Completed a ground- based, induced polarized geophysical survey, consisting of 5 lines, each line 1.2 km long and spaced 100 m apart.
- Initiated a prospecting program.
- Initiated a bedrock and overburden sampling program.
- Initiated and completed an eleven hole, 3,000 m diamond drill program.
2012 Updates
Rapson Bay Shoal
The 2011 Rapson Bay exploration program focused on evaluating three key areas of interest for gold mineralization (Wynne Bay, Rapson Bay Shoal, Gilleran Lake; see Figure 1). The gold targets were generated after the completion of an initial airborne geophysical survey in the winter of 2011, followed by an integrated prospecting, overburden and bedrock sampling, geological mapping and ground geophysical program through the summer of 2011.

Figure 1. Location of the three key areas of interest that have been identified and recently drilled on the Rapson Bay gold property. These include the Rapson Bay Shoal (reported here), Wynne Bay and Gilleran Lake. Note the location of the Monument Bay Au deposit 15km west of the Rapson Bay claim block. Also presented are several Au, Cu and Ag showings that are located within the Rapson claim block.
On January 11, 2012, Northern announced that it intersected a mineralized porphyry system in the “Rapson Bay Shoal” area. Mineralization was intersected in drill hole WB-11-008C, consisting of three mineralized zones (see Table 1). The main zone assayed 1.83 g/t Gold, 6.65 g/t Silver, 1.08 % Copper, 0.059 % Molybdenum over 18.0 m. There are two adjoining peripheral zones, Peripheral Zone 1 assayed 0.27 g/t Gold, 0.67 g/t Silver, 0.22 % Copper and 0.009 % Molybdenum over 19.6 m; Peripheral Zone 2 assayed 0.37 g/t Gold, 1.92 g/ t Silver, 0.32 % Copper and 0.017 % Molybdenum over 14.9 m (note this last width is a minimum value and additional sampling of core is required). The entire mineralized zone assayed 0.83 g/t Gold; 3.07 g/t Silver; 0.55 % Copper; 0.028 % Molybdenum over 52.5 m.
It is important to note that porphyry deposits are considered the world’s most important source of copper and molybdenum and a key source of gold and silver. Most consist of copper values that range from 0.2 to more than 1 %, molybdenum values that range from 0.005 to 0.03%, gold values that range from 0.004 to 0.35 g/t and silver values that range from 0.2 to 5 g/t (see Table 2; Sinclair 2007).
| Table 1: Rapson Bay: WB-11-08C, Shoal Hole Summary Of Mineralization |
| Zone |
Au (g/t) |
Ag (g/t) |
Cu (%) |
Mo (%) |
Length (m) |
| Main Mineralized Zone |
1.83 |
6.65 |
1.08 |
0.059 |
18.0 |
| Peripheral Mineralized Zone 1 |
0.27 |
0.67 |
0.22 |
0.009 |
19.6 |
| Peripheral Mineralized Zone 2 |
0.37 |
1.92 |
0.32 |
0.017 |
14.9 |
| Entire Mineralized Zone |
0.83 |
3.07 |
0.55 |
0.028 |
52.5 |
| NOTES: |
For Au, weighted averages have been presented. |
| For Ag, assay results reported in PPM are converted directly to g/t, and weighted averages are presented. |
| Table 2. Typical Mineralization Associated with Porphyry Deposits |
| Au (g/t) |
Ag (g/t) |
Cu (%) |
Mo (%) |
| 0.004 - 0.35 |
0.2 - 5.0 |
0.2 - 1.0 |
0.005 0.03 |
The purpose of this hole was to test a reported outcrop sample that assayed 12 g/t gold over 4m. The mineralization intersected and reported here is associated with a large geophysical anomaly with a surface signature that is conservatively measured as 775 m long (see Figure 2), the width of the system has yet to be determined. Additional, similar and larger anomalies exist on the property as well as additional anomalous Au showings that suggest we may be dealing with a much larger, complex system and additional work is being planned.

Figure 2: Airborne magnetic survey showing the drill hole trace of WB-11-008C, as well as the mineralized zones identified. The coloured bars on the left side of the drill trace show the Peripheral Mineralization Zones in green and the Main Mineralization Zone in red. The coloured bar on the right side of the drill trace represents the entire mineralization zone intersected. The red dashed line represents the interpreted length of the mineralized zone.
Drill Hole WB-11-008C was drilled at a dip of -50 degrees and an azimuth of 40 degrees. The hole collared into syenite, and then grades into a massive to strongly foliated feldspar porphyry beginning at 31.50m. The mineralized zone is present between 60.30m and 112.80m and consists of foliated, feldspar porphyry characterized by pervasive silica flooding and sericite alteration with late chlorite filled fractures. Localized healed breccias are present throughout the mineralized intersections. Three distinct mineralized zones have been identified based on core logging and confirmed by assay results. These include the upper Peripheral Mineralization Zone 1, the Main Mineralized Zone and the lower Peripheral Zone 2. The Peripheral zones are generally characterized by less altered drill core with a lower proportion of sulfide minerals as compared to the extremely altered Main Mineralized Zone, distinguished by common sulfides. Mineralization identified within the drill core by macroscopic investigation includes chalcopyrite (3- 8%), bornite (1- 4%) and molybdenite (tr- 2%). With increasing depth at 164.40m, there is a sharp contact into gabbro, which continues to the end of hole at 399.30m
Drill results from the other two key areas, Wynne Bay (6 drill holes) and Gilleran Lake (1 drill hole) will be reported as results are received and processed from ALS Minerals in Thunder Bay.
Wynne Bay
On January 23, 2012, the Company announced that it had defined a potential 4 km fertile section of the Stull-Wunnimun fault in the Wynne Bay area of its 100% owned Rapson Bay gold property. All seven early exploration drill holes (1,850 m) contained intersections that returned positive assays for gold above background levels of 100ppb, including an intersection of 32.6 g/ t gold over 1.0 m (WB-011-05C; see Table 1). A total of 32 different mineralized zones were intersected within a variety of volcanic and metasediments with lengths ranging from 0.5- 9.0m clearly indicating the fertile nature of this target area.
This area of interest occurs within a splay of a southwest fault associated with the highly prospective Stull-Wunnimun fault. This fault extends west-northwest from the Wynne Bay area to the Monument Bay gold deposit, 28 kilometers to the west-northwest of Wynne Bay (Figure 1). The Wynne Bay area has a history of gold exploration where multiple gold showings have been previously reported, including a historic outcrop sample of 1.65 ounces per ton. It is important to note that a northwest trending Wolf Bay shear zone also extends across the property to the Little Stull Lake gold deposit.
In addition to the diamond drilling, Northern Superior’s 2011 exploration program in the Wynne Bay area included: a) an airborne geophysical survey (covered the whole property); b) glacial sediment sampling; c) prospecting; d) trenching; and e) ground geophysics. This work has identified multiple gold exploration targets that remain untested over a 4km distance (see Figure 2). These targets are based on: a) the distribution and concentration of gold grains including a sample that returned 48 pristine grains; b) a bedrock grab sample that assayed 6.28g/t gold from a highly altered metasediment (see red star, Figure 2); and c) multiple IP anomalies.”
| Hole ID |
Depth (m) |
Length(m) |
Gold (g/t) |
| WB-11-003C |
78.00 |
1.50 |
1.000 |
| WB-11-004C |
20.40 |
0.94 |
1.175 |
| WB-11-004C |
68.10 |
3.00 |
3.240 |
| WB-11-005C |
96.20 |
1.00 |
32.600 |
| WB-11-007C |
274.30 |
1.50 |
1.481 |
Table 1. Assay results for all samples returning ≥ 1 g/t gold from the drill holes completed in the Wynne Bay area including the 32.6 g/t gold over 1 m assay. Note, a total of 36 different mineralized zones from intersections ranging from 0.5-9.0m were identified clearly indicating the fertile nature of this target area.

Figure 1. Location of the Wynne Bay area of interest, and the associated structures and key showings and other areas of interest on the Rapson Bay claim block.

Figure 2. Location and distribution of diamond drill holes, overburden gold grain values, IP anomalies and the boulder that assayed 6.28 g/t gold (red star). The dotted black line outlines the zone of interest that contains a number of anomalies and structures that have yet to be drill tested.
There were no significant assay results returned from the single drill hole (GL-11-001C) completed in the Gilleran Lake area.