- SMDI #
- 1830
- Current Showing Name
- Nekweaga Bay Pb Occurrence
- Historical Showing Names
- Nekweaga Bay Pb Occurrence
- Company Name
- Project Name
- UTM Easting (NAD83 Z13)
- 587667.7000
- UTM Northing (NAD83 Z13)
- 6418720.8000
- NTS Sheet
- 064E13
- TRM (Township-Range-Meridian)
- 102-10-2
- Primary Commodities
- Lead
- Associated Commodities
- Iron
- Discovery Type
- Outcrop Grab
- Status
- Mineral Location
- Geological Details
- The showing is located on the north tip of the point of land which forms the east shore of Nekweaga Bay approximately 1.5 miles (2.4 km) south of the Linn Island boulder train or SMDI 1706.
The drift-covered point of land which forms the east shore of Nekweaga Bay was mapped by J. Lewry as being underlain by a mixed series of Wollaston Domain biotitic psammites to semipelites (biotite gneiss) with local pelitic intercalations. The banded and variably migmatized biotitic gneisses contain significant intercalated semipelitic to pelitic interlayers (units 8b and 8c). These pelites and arkoses, which unconformably overlie Archean Johnson River Inlier granites, contain local interbeds of calc-silicate rock and impure marble (unit 9) and they have been intruded by a series of small bodies of pink granite pegmatite. Prospecting has located narrow shear zones which host minor pyrite in the pelites. Up to 4 ft (1.2 m) wide zones of mineralized chlorite-altered psammite and pelite have been found.
The bedding, foliation and schistosity are all parallel. The Wollaston Group metasediments strike to the northeast and dip steeply to the northwest. The east shore of Nekweaga bay occurs on the easst limb of the Linn Island Anticline. A major north-trending fault passes immediately to the east of the peninsula on which the showing is found.
The showing consists of an outcrop of sheared hornblende granite with no visible mineralization. One chip sample (number 215) taken at the site returned 2110 ppm (0.21%) Pb, 24 ppm Cu, 11 ppm Zn, and 20 ppm U.
- Geological Domain
- Wollaston
- Host Rocks
- Host Minerals
- Pyrite
- Indicators
- Exploration History
- 6/13/1989 Earliest records (1968) show the area was covered by Royal Canadian Ventures and New Continental Oil Permit No. 6 (NCP 6). In 1968, the area was regionally mapped, prospected and grab sampled. Analyses were conducted for Cu, Zn, Pb, U3O8, ThO8, MoS2, Ni, Au and Ag. Minor amounts of disseminated pyrite detected during this survey prompted a follow-up program in 1969, involving an airborne combined EM, magnetic and radiometric survey. Fifty four EM anomalies and 85 radiometric anomalies were discovered on the permit as a result of this program. Five of the EM anomalies were followed up by ground EM and magnetic surveys, detailed grid mapping and prospecting. Rock chip geochemistry analyzing for Cu, Pb, Zn, and U was performed. All 85 radiometric anomalies delineated by the airborne survey in 1968 were followed up on ground by prospecting and radiometric traverses. The anomalies were attributed to mass effects of boulder fields and to exposures of granites (AF 64E14-0009). NCP 6 lapsed in early fall of 1971.
The area remained open until 29 March 1977, when Saskatchewan Mining and Development Corporation (SMDC) staked it as MPP 1042. In 1979, they completed prospecting, geological mapping, and 2 drill holes on the MPP (AF 64E13-0046 and -0047). None of this work was done over the showing. The bulk of the property lapsed 1 August 1985. SMDC continues to hold several claim blocks that they had staked within the MPP prior to its lapse.
- Production History
- Reserves and/or Resources