- SMDI #
- 2459
- Current Showing Name
- Drill hole MN-04
- Historical Showing Names
- Drill hole MN-04
- Company Name
- Project Name
- UTM Easting (NAD83 Z13)
- 478760.8000
- UTM Northing (NAD83 Z13)
- 6386460.3400
- NTS Sheet
- 074H11
- TRM (Township-Range-Meridian)
- 99-21-2
- Primary Commodities
- Uranium
- Associated Commodities
- Iron
- Discovery Type
- Drillhole
- Status
- Occurrence: Primary Exploration
- Geological Details
- The showing or drill hole MN-04 is located 0.16 km (0.10 mile) northwest of Spring Lake - a small lake that is 3.30 km (2.05 miles) west-southwest of the southwest bay of Firneisz Lake. The showing is 2.7 km (1.7 miles) southwest of the Eagle Lake boulder train or SMDI 2152 at grid co-ordinates 34+00N and 4+68E.
There is 96 m (29.3 ft) of Pleistocene and Recent overburden on the property. The initial ice advance direction of 215° was followed by a younger ice advance direction of approximately 240°. There is a third, even younger, ice advance direction of approximately 227°.
DRILL LOG FOR DRILL HOLE MN-04
______________________________
FROM TO LITHOLOGICAL
(M) (M) DESCRIPTION
_____________________________________________________________________________
0.0 96.0 Overburden
96.0 208.0 MFd: whitish grey to pink, very well sorted quartz sandstone
with clay interclasts
208.0 273.5 MFc: whitish grey to pink, moderately sorted, granule rich
sandstone with pebbly interlayers
273.5 476.0 MFb: whitish grey to purple, poorly sorted, bedded, quartz
pebble conglomerate: Pebbles <4mm in diameter
476.0 599.3 MFa: possibly transition beds between MFb and MFa
599.3 Unconformity
599.3 604.0 Anatexite: locally brecciated interval of weakly graphitic
pegmatite that contains up to 40% graphite-cordierite-
semipelite
604.0 607.7 Semipelite: a graphite-cordierite augen gneiss: up to 20%
graphite
607.7 609.1 Anatexite: brecciated, weakly graphite pegmatite, that
contains up to 5% graphite semipelite
609.1 609.8 Mineralized interval: maximum 2,400 cps (0.11% U3O8 - 50 cm)
609.8 611.9 Semipelite: graphite-cordierite gneiss with up to 5% graphite
611.9 612.3 Mineralized interval: maximum 2,400 cps
612.3 636.9 Semipelite: graphite-cordierite gneiss with up to 5% graphite
636.9 658.0 Pegmatite: massive, clay-altered, tourmaline rich pegmatite
658.0 End of Hole
The first mineralized interval is hosted within a dravitized and silicified, sheared, graphitic semipelite. Up to 2% pyrite and dravite and associated black uranium oxides occur with graphite as fracture fillings in the intensely sheared host rock.
The deeper mineralized intersection is hosted within a strongly sheared and altered (dravitized) semipelite. Pyrite, black uranium oxide, and graphite occur as fillings within a series of shears that are characterized by the presence of slickensides.
- Geological Domain
- Wollaston
- Host Rocks
- Host Minerals
- Pyrite
- Indicators
- Exploration History
- 9/2/1992 Between 1969 and 1979, Enex resources Limited (later Enexco) completed photogeological mapping, a hydrogeochemical survey, radon-in-soil gas surveys, soil sampling, airborne and ground geophysical surveys, prospecting, and one drill hole on CBS 5462.
In 1978, Enex Resources completed radiometric prospecting, geological mapping, ground EM, magnetic, Track Etch and radon surveys, and lake/ spring water sampling on CBS 5462 (AF 74H11-0005).
In 1979, Enex Resources completed two drill holes and continued the program of boulder prospecting, ground geophysics, and spring geochemistry on CBS 5462 (AF 74H11-0021).
On 1 July 1980, CBS 5462 was converted to ML 5289. In 1980, Enex flew an airborne VLF, magnetic, and radiohm survey over ML 5289 (AF 74H11-0009) and continued the ground program of boulder prospecting and soil and water geochemistry (AF 74H11-0008).
In 1981, Enex Resources continued the program of geological mapping, radiometric prospecting, geochemical sampling (lake, spring, soil, rock, core), ground EM surveys, and completed a data reivew and petrographic study (AF 74H11-0028). In 1982, a regional gradiometer survey was completed which covered the showing area. In 1983, a Inexco (67.7%)-SMDC partnership completed prospecting, lake sediment sampling, and track etch sampling over the Eagle Lake boulder field (re-named the Enex/ Firneisz boulder field) (AF 74H11-0046).
In 1986, the mining lease was farmed out to Chevron Canada Resources and Nordac Mining Company and Noradc sold the majority of their interest to Noranda Exploration and Mining Limited. The resulting ownership was Inexco (30%), Chevron (25%), Uranerz (25%), and SMDC (20%). SMDC was appointed the operator.
In 1987, SMDC completed gravity and UTEM surveys over the showing area grid and completed drill hole MN-01 at the southeast end of Spring Lake (AF 74H11-0075). The drill hole failed to intersect significant uranium mineralization.
In 1988, SMDC completed 5 anomaly drill holes on the property (AF 74A11-0074). Drill hole MN-04, which was spudded to test the C-2 conductor, encountered the mineralization that comprises this showing. Drill holes MN-02 and -05, which also tested the C-2 conductor, failed to intersect significant mineralization.
In 1989, SMDC completed ground EM-37 and TDEM surveys which covered the immediate showing area and completed drill holes MN-06 to 08 to the northeast of the showing (AF 74H11-0077). In 1990, the partnership completed ground TDEM and boulder sample surveys which covered the showing and drill holes MN-09 and -10 along strike and well to the north of MN-04 (AF 74H11-0083). The drill holes failed to intersect significant mineralization. On 6 June 1990, ML 5289 was converted to S-100210.
Between 2001 and 2002, a partnership involving Cameco, International Enex Company Ltd., and UEM Inc. completed an airborne gradiometer and magnetic survey over the showing (AF 74H11-0102). A follow-up ground TDEM survey was completed well south of the showing on grid MN-02-G1. Drill hole MN-12, completed on the showing C-2 conductor well south of the showing, failed to intersect significant mineralization.
On 18 September 2002, M. Lederhouse staked the showing as S-106776 for UEM Inc. as part of a reduction of S-100210. In the following year, UEM Inc. re-logged drill hole MN-04 and completed a geophysical compilation for the Mann Lake Property (AF 74H11-SW-0105).
- Production History
- Reserves and/or Resources