- SMDI #
- 0357
- Current Showing Name
- Belcher Lake Drill Holes 84 to 102
- Historical Showing Names
- Belcher Lake Drill Holes 84 to 102
- Company Name
- Project Name
- UTM Easting (NAD83 Z13)
- 657102.3300
- UTM Northing (NAD83 Z13)
- 6126540.8700
- NTS Sheet
- 063M07
- TRM (Township-Range-Meridian)
- 72-04-2
- Primary Commodities
- Copper
- Associated Commodities
- Graphite, Iron
- Discovery Type
- Drillhole
- Status
- Mineral Location
- Geological Details
- The area is underlain by hornblende and calc-silicate gneisses, biotite gneisses, and pegmatites of the Archaean Kisseynew Gneiss. Disseminated pyrrhotite, pyrite and graphite, in amounts of 5 to 30 per cent, and minor chalcopyrite occur in narrow zones associated with calc-silicate rocks in mafic gneiss along the south shore and west arm of Belcher lake. Graphite-biotite gneiss, cut by bands of pegmatite, is closely associated with the general zone of mineralization. Kirkland (1974) noted sulphides 2 miles (3.2 km) north, 3.4 and 3.6 miles (5.5 and 5.8 km) northwest, and 5.1 miles (8.2 km) north northwest of drill hole no. 92 in mafic hornblende gneiss, and 0.7 mile (1.1 km) west in biotite gneiss. All these occurrences were on or near the shoreline of Belcher Lake.
'...Numerous narrow gossan zones ranging from a few inches to several feet wide, occur in biotite gneiss (27 miles (43.5 km) northwest of drill hole no. 92) along the northwest shore of Wapumon Lake and for at least two miles to the northwest. Observed mineralization consists of pyrite, pyrrhotite and graphite. Some the mineralized zones in this area were drilled, but there is no record of the work ....'.
Narrow gossan zones occur (23 miles(37 km) northwest of drill hole no. 92) in biotite gneiss, at three localities near the mouth of Ray Bay at the south end of Wintego Lake. Observed mineralization consists of pyrrhotite, pyrite and graphite.
DRILLHOLE INTERSECTION INTERSECTION
NUMBER (FT) DESCRIPTION
_____________________________________________________________________________
84 69.0 - 185.0 graphitic, altered bio-qtz-feld-chl gneiss
150.6-155.0 disseminated and bleb style pyrite, dissem. graphite
173.0-184.0 blebs of pyrite in carbonate infilled gneiss
86 102.0 - 123.1 migmatitic chlorite-biotite-quartz-feldspar gneiss
122.6-123.1 near solid sulphide (pyrite+ lesser pyrrhotite)
123.1 - 204.3 altered quartz-biotite-chlorite-carbonate gneiss
185.4-199.5 NSS pyrrhotite + blebs pyrite, dissem. graphite
204.3 - 250.0 altered pegmatite
211.0-225.9 NSS pyrrhotite + blebs pyrite
90 84.0 - 184.0 altered quartz-feldspar-biotite-garnet gneiss
114.5-117.8 massive graphite with up to 5% dissem. pyrite
141.0-146.8 massive graphite plus blebs pyrite, pyrrhotite
92 10.0 - 57.3 locally chloritic, biotite-quartz-feldspar gneiss
57.3 - 135.4 pegmatite with sections NSS sulphide and graphite
72.0-72.3 sheared interval: heavily disseminated graphite±pyrite
89.0-98.0 mineralization: 10-15% pyrite, graphite + minor cpy
135.4 - 325.0 locally graphitic biotite-feldspar-quartz gneiss
205.5-205.7 heavily dissemniated graphite
95 32.7 - 47.0 altered, graphitic bio-hbl-quartz-feldspar gneiss
35.8-36.1 massive graphite (shear infilling?)
47.0 - 76.0 altered gneiss with pegmatite bands
54.4-62.5 NSS pyrite mineralization plus graphite
76.0 - 151.6 altered quartz-feldspar-biotite-graphite gneiss
76.0-93.5 up to 30% py-po plus disseminated graphite
151.6 - 453.0 qtz-bio-feld-garnet±chl gneiss
165.8-168.1 disseminated pyrite
390.5-393.3 very graphitic
96 12.0 - 145.0 locally graphitic and augen qtz-bio-feld±chl gneiss
145.0 - 193.0 same as above with graphitic intervals
180.0-184.0 heavy disseminated graphite
185.0-186.2 5-15% disseminated pyrite
188.4-189.6 10-15% disseminated pyrite
97 4.0 - 189.6 altered quartz-feldspar-muscovite-sericite gneiss
113.2-147.0 mineralization: light to heavy gf, bands NSS py-po±cpy
98 25.0 - 100.0 altered, graphitic qtz-feld-bio gneiss
62.4-63.1 1-15% pyrite, graphite
72.3-74.8 NSS pyrrhotite plus minor pyrite
94.7-100.0 light to heavy graphite, pyrite, pyrrhotite
100.0 - 156.0 banded quartzite
99 7.0 - 94.8 altered musc-seric-chl-feld gn, quartzite interbands
17.3-18.0 15% pyrite
94.8 - 149.9 pegmatite
106.0-107.7 10-15% pyrite+pyrrhotite
149.9 - 197.0 altered gneiss (as above) with py-po-gf intervals
152.4-161.1 up to 10% py-po plus minor graphite
164.8-167.5 NSS pyrite±pyrrhotite
184.9-186.9 NSS: bands py-po, large blebs graphite
101 7.0 - 145.3 qtz-feld-bio gneiss: locally chloritic,pegmatite bands
72.6-97.0 up to 20% disseminated and stringer pyrite
97.0-98.3 heavy graphite, fair pyrite
102.0 27.0 - 189.0 quartz-feldspar-biotite±chlorite gneiss
120.0-133.0 light to moderate graphite
The drill holes encountered Kisseynew Nokomis Group veined and blastic graphitic biotite gneisses and granitoid biotite gneisses with interlayered psammitic and granitoid mafic gneisses.
- Geological Domain
- Kisseynew
- Host Rocks
- Host Minerals
- Pyrite, Pyrrhotite
- Indicators
- Exploration History
- 7/21/1988 The area was first covered as part of the Western Nuclear Mines Ltd. Permit No. 1 in 1969. This was followed later the same year by an airborne magnetic, electromagnetic, and radiometric survey over the area. In 1970 a ground electromagnetic survey was conducted on the west shore of Belcher Lake to outline anomalies found the previous year. Several formational conductors were outlined and 13 diamond drill holes (drill hole nos. 84 to 102) were drilled to a total depth of 2,912 feet on the anomalies (AF 63M02-0007). The drill holes intersected minor pyrite-pyrrhotite-graphite and trace chalcopyrite mineralization. Due to the low grade of the core no assays were taken, no further work was recorded and Permit No. 1 was allowed to lapse in 1971.
By 1980, the showing was within MPP 1114. SMDC flew an airborne INPUT and magnetic survey and completed follow-up ground prospecting (AF 63L15-0036).
- Production History
- Reserves and/or Resources