- SMDI #
- 1902
- Current Showing Name
- Drill hole HBW-10
- Historical Showing Names
- Drill hole HBW-10
- Company Name
- Project Name
- UTM Easting (NAD83 Z13)
- 569620.3700
- UTM Northing (NAD83 Z13)
- 6435596.5300
- NTS Sheet
- 064L04
- TRM (Township-Range-Meridian)
- 104-11-2
- Primary Commodities
- Uranium
- Associated Commodities
- Discovery Type
- Drillhole
- Status
- Occurrence: Primary Exploration
- Geological Details
- The showing is defined by a single drill hole (HBW-10) drilled along a trend of EM conductors south of a small lake which is located 1.5 miles (2.4 km) west of the south end of Hidden Bay.
The regional geology of the area is one primarily of glacial drift cover based on Wallis' 1969 field mapping (1971). Compilation bedrock geology map series of 64L shows the area of drilling to occur in Helikian-aged Athabasca Group. The area is along strike, however, with Wollaston Group (Aphebian-aged) calcareous psammites, calc-silicates and marbles, metaquartzites, pelites and meta-arkoses and interlayered amphibolites, psammopelites, meta-arkoses and calc-silicates. Small intrusions of late Aphebian-Hudsonian-aged tonalites, granodiorite and monzogranites, probably derived from anatexis of Wollaston Group supracrustals, are locally present (Thomas, 1983). The Wollaston Group supracrustals may represent a complex assemblage of shelf facies metasediments (AF 64E-13-0044). In the locality of drilling, the area is covered by a thin veneer of Athabasca Group sandstones overlying severely altered paragneiss, hematitic and chloritic sillimanite gneiss, graphitic paragneiss and segregation pegmatites. Meta-arkoses are also present.
The core of HBW-10 is primarily intercalated graphitic paragneiss and altered pegmatite segregations. Anomalous uranium mineralization occurs at the contact between graphitic paragneiss and pegmatite.
Visible pitchblende was reported and radiometric analysis showed 3000 cps. Mineralization occurred in the fractured portion of the pegmatite. Assays returned 0.11% U (0.13% U3O8) and <0.01% Ni across a 4 ft (1.2 m) interval.
- Geological Domain
- Wollaston
- Host Rocks
- Host Minerals
- Indicators
- Exploration History
- 7/13/1989 Earliest records (November 1968) show the location of drill hole HBW-10 to have fallen into Gulf Minerals Canada Ltd. Permit No. 7. In 1968, 22 drill holes were completed across that permit and several others. Uranium values were quite low. Geological reconnaissance mapping and airborne radiometric and geophysical surveys were also conducted (AF 64L-0001). In the same year, Gulf completed 3 drill holes north of the present HBW-10. One hole (7-3) became a discovery hole for the Rabbit Lake Mine (see SMDI 1713; AF 64L04-0004). Airborne radiometric surveys, geological reconnaissance mapping and ground scintillometric surveys were also performed. In 1969, 5 holes were drilled in the Pow Bay area, after geological reconnaissance and prospecting revealed local pockets of uranium mineralization (see SMDI 1714; AF 64L04-0005). In 1970, 9 holes were completed east of HBW-10 on the Hidden Bay grid. No assays were performed. Geological reconnaisssance and prospecting were carried out as well (AF 64L04-0006). 104 drill holes were drilled between 1971 and 1972 as an exploration program. No drilling was done in the vicinity of HBW-10. Prospecting was also carried out (AF 64L04-0009). In 1972, geophysical investigations of anomalies were conducted with accompanying soil sampling and prospecting (AF 64L04-0011).
In February of 1973, Permit No. 7 was divided into a series of claim blocks. Drill hole HBW-10 was covered by Gulf Minerals Canada CBS 1144. In 1974, geological mapping and grid EM surveys were completed (AF 64L04-0026) in addition to prospecting which was initiated in 1973 and was continued until 1975 (AF 64L04-0035). In 1976, 4 drill holes were completed west of HBW-10 in a gravity low as a result of this work (AF 64L04-0044). U3O8 values were low. Another hole was completed in 1977 in the same area, with a similar lack of mineralization (AF 64L04-0051).
In 1976, Gulf entered into an option agreement with Noranda Exploration Co. Ltd. (Norex) and Sask. Mining and Development Corp (SMDC), and the CBS went over to Mineral Lease 5222. In 1978, grid establishment in the Hidden Bay West area was sperformed, with ground EM also conducted. 21 drill holes were completed south of HBW-10 on the Wolf Lake grid (see SMDI 1900, AF 64E13-0037). In 1979, 47 holes were completed in the 64-L-04 area, 10 of them (HBW 1 to 10) on the Hidden Bay West grid, ML 5222. Only HBW-10 contained mineralization which was associated with an EM conductor (AF 64E13-0044). In 1982, drill holes SNO-18 to 26 were completed on the Snowshoe grid (ML 5222 and 5224). The drilling, which was on ML 5224 encountered 0.011 % U3O8 over 1.5 m. in hole 26. No further work was recommended (AF 64L04-0086).
In the fall of 1986, Eldorado Resources Ltd. completed ground HLEM and VLF-EM surveys and drill holes HBW-28 to -31 to the northeast of the showing discovery drill hole HBW-10 on ML 5222 and adjoining ML 5223 (AF 64E13-0059). These drill holes tested the northeastern extension of a series of conductors that extend from Hidden Bay to Two Z Lake. Drill hole HBW-29, which was completed on ML 5222, encountered the mineralization that comprises SMDI 2381.
In 1987, part of ML 5222 was re-staked as CBS 6793 and the unstaked portion of ML 5222 lapsed.
In the winter of 1989, a partnership involving Cameco (66.6%) and Uranerz Exploration and Mining (33.3%) completed HLEM and Max Min surveys on the Snowshoe grid and drill holes SNO-29 and 43 on ML 5222 (formerly CBS 6793) to test for extensions of the mineralization encountered in drill hole HBW-10 (AF 64L04-0104). These holes intersected a maximum value of 0.05% U3O8 over 0.9 m in graphite-filled basement shears.
- Production History
- Reserves and/or Resources