SMDI #

2056

Historical Showing Names

Dufferin Lake Uranium Zone

Project Name

UTM Northing (NAD83 Z13)

6372193.5000

TRM (Township-Range-Meridian)

97-11-3

Associated Commodities

Cobalt, Copper, Graphite, Lead, Nickel

Status

Prospect: Primary Exploration

Geological Domain

Mudjatik

Host Minerals

Exploration History

7/20/1989 As early as 16 December 1965, the area that the drill holes comprising the showing intersect was staked as part of International Nuclear Corporation Permit No. 2. In 1969, the company reported that it had undertaken an airborne geophysical survey, followed up by a geological investigation of anomalous areas and geophoto interpretation (AF 74G05-0007). No further exploration was reported and the permit lapsed 1 February 1971. The showing area was subsequently covered by Crown Reserve 614 but this came open prior to any work being done on it. As early as 16 July 1974, the showing area was covered by Inexco Special Agreement which was explored by Uranerz Exploration and Mining Ltd., SMDC and Eldor Mines Ltd. Work on the agreement began that same year by Uranerz who flew a helicopter-borne spectrometer survey and did geological reconnaissance of the disconformity in the area. As well, they did lake bottom sediment sampling and ran a grid magnetic survey (AF 74G05-0012). This was followed the next year by a program of diamond drilling, prospecting, and ground EM and magnetic surveying which continued on into 1976 (AF 74G05-0013). Intensive exploration by Uranerz in the general area of the showing began in 1976 with airborne magnetic surveys, prospecting, lake water and sediment sampling, bog sampling, and a ground magnetic survey (AF 74G05-0027). The program continued through 1977 and into 1978. Results were favourable and more exploration consisting of prospecting, diabase sampling, geological mapping, lake geochemistry, bog sampling and geobotanical sampling was done (AF 74G05-0028). Also that year an airborne EM (input) and magnetic survey (AF 74G05-0031) was flown over the area, which had now become MPP 1050. A track etch survey was begun, as well as depth sounding, prospecting, and ground magnetic and EM surveys which continued into the next year (AF 74G05-0033). The area was mapped by Ramaekers and Gilboy of the Saskatchewan Government in 1977; as well a reconnaissance geochemical survey was done over the area by C.E. Dunn of the Saskatchewan Geological Survey. In 1979, very intensive exploration consisting of geological mapping, biogeochemical sampling, helium soil gas and bore hole sampling, soil sampling and a ground radiometric survey was completed (AF 74G05-0034). As a result, diamond drill holes were sited and completed later that year (AF 74G05-0035). It was due to this drilling program that the initial holes comprising the showing were completed and logged. Complete drill hole logs are given in assessment file 74G05-0035. CBS 6700 was staked within MPP 1050 by the same group of companies. Exploration continued with biogeochemical sampling, a pulse EM survey, magnetotelluric and EM soundings, and density determinations from the core core samples (AF 74G05-0036). In 1980, two separate programs consisting of surficial geology, prospecting, lake water, sediment and ground water sampling, and geophysical surveys including VLF-EM, Turam, gravity, magnetic sand airborne radiometric (AF 74G05-0042) and a petrological study of the drill core (AF 74G05-0049) were completed. More prospecting, till sampling, trenching, ground geophysics and rock geochemistry from drill core (AF 74G05-0052) and diamond drilling (AF 74G05-0051). The CBS converted to ML 5371 on 16 July 1984 but lapsed 1 December 1986 with no work being reported by any of the holding companies. Uranerz Exploration staked CBS 8082 covering the showing two weeks later on 15 December 1986. Between 1987 and 1988, the partnership completed boulder sampling, lake water sampling, and ground EM-37 and magnetic surveys over the grid which covers the showing (AF 74G05-0058). Lithogeochemical and petrographic surveys were completed on the core from drill hole DF-20. Between 1989 and 1990, they completed further boulder sampling, ground TDEM and EM-37 surveys, and drill hole DF-60 in the immediate showing vicinity (AF 74G05-0059). Drill hole DF-60, which was completed 125 m (410.1 ft) southeast of drill hole DF-23, encountered anomalous uranium mineralization which is described above. On 22 February 1991, the partners re-staked the showing area as S-101679 (within CBS 8082). On 1 May 1991, CBS 8082 was allowed to lapse. On 1 May 1995, Uranerz Exploration and Mining staked the showing as S-104757. In 1997, Cameco (75%) and Uranerz (25%) completed a ground TDEM survey and boulder sampling which covered the showings and core reflectance spectroscopy measurements on DF-8, -20, and -60 (AF 74G05-0057). In 1998, a Cameco-Uranerz joint venture completed a Athabasca boulder sample and sandstone boulder reflectance spectroscopy measurement survey over the area of drilling on S-104757 (AF 74G05-0061). In 2000, a partnership involving Cameco (50%) and Cogema Resources Inc completed a sounding TEM survey over the claim which is owned 75% by UEM Inc and 25% by Cameco (AF 74G05-0062). In the same year, they completed outcrop and till sampling, ground gravity and magnetic surveys on the DL-2000 grid to outline the trace of the Dufferin Fault, re-analysed the core from existing drill holes, and anomaly drill holes SW-01 to SW-06 (AF 74G05-0063). This drill program failed to intersect significant uranium mineralization In 2001, a partnership involving Cameco and UEM Inc. completed an airborne gradiometer and magnetic survey, a ground pole-dipole resistivity survey, and a light hydrocarbon-in-soil survey that covered the showing and drill holes SW-07 to SW-10 on the showing (AF 74G05-0064). In 2002, Cameco, as operator, completed a ground TDEM survey, soil (MMI and light hydrocarbon ) sampling, and drill holes SW-11 to SW-15 on the property (AF 74G05-NE-0066). In 2003, they completed a ground TDEM survey that covered the showing (AF 74G12-SE-0038). In the same year, the partnership completed drill holes SW-016 to SW-018 on the Dufferin Lake Zone C conductor and they completed a study of existing drill holes SW-009 and DF-22 (AF 74G05-NE-0067). The better drill intersections are reported above.

Reserves and/or Resources