Release: 08/26/97
Diamond Drilling Program Commences On The Lew Copper-Zinc Property
Thunderwood Resources Inc. and Consolidated Abitibi Resources Ltd. announce that an initial $200,000 diamond drilling
program consisting of 2,000 meters of drilling in six holes and downhole Pulse EM geophysical surveys has commenced on
the Lew volcanogenic copper-zinc property which is located approximately 20 kilometers east-northeast of Flin Flon,
Manitoba.
Previous diamond drilling in 1991 by Granges Inc. led to the discovery of high grade, massive stringer
chalcopyrite-pyrrhotite and banded sphalerite-chalcopyrite-pyrite mineralization on the Lew property just south of Leo Lake.
The two largest copper-zinc sulphide zones at Leo Lake are estimated to contain a drill indicated mineral resource of
80,000 tonnes grading 3.65 percent Cu and 1.94 percent Zn above a depth of 150 meters below which these zones remain
untested. Significant drill intersections include 10.8 percent Cu and 1.2 percent Zn over a core length of 6.0 meters; 12.2
percent Cu and 1.6 percent Zn over 3.9 meters; 5.5 percent Cu and 2.4 percent Zn over 10.4 meters; 9.4 percent Cu and 0.4
percent Zn over 4.1 meters; 6.0 percent Zn and 0.5 percent Zn over 5.5 meters; 5.7 percent Cu and 0.6 percent Zn over 6.4
meters; 3.8 percent Cu and trace zinc over 17.6 meters; 3.0 percent Cu and 0.4 percent Zn over 17.9 meters; and 3.2
percent Cu and trace Zn over 10.0 meters. A recent re-evaluation and re-interpretation of all previous diamond drill,
lithogeochemical and stratigraphic data suggests that the Leo Lake copper-zinc mineralization occurs in four east-west
striking zones that are approximately 35 meters apart in a north-south direction that trend perpendicular to the overall trend
of the host volcanic stratigraphy in the area. The copper stringer mineralization coincides with a zone of intense sodium
depletion and magnesium enrichment that is interpreted to lie east and stratigraphially below a pronounced zone of copper
and zinc enrichment in the overlaying felsic volcanic rocks. These features are suggestive of a copper bearing feeder zone
that could be associated with an as yet undetected massive copper-zinc deposit lying immediately to the west.
The Lew property is predominantly underlain by felsic volcanic flows and pyroclastic rocks which belong to the Early
Proterozoic, Baker Patton Felsic Complex. These rocks, in the area of the Leo Lake copper-zinc mineralization, have been
intensely altered to chlorite and are strongly deformed. The Baker Patton Complex is known to host six other base metal
deposits in addition to the Leo Lake occurrence. The most significant of these are North Star which contains 250,000 tonnes
grading 6.1 percent Cu; Don Jon which contains 80,000 tonnes grading 3.1 percent Cu; and Pinebay which contains
1,350,000 tonnes grading 1.3 percent Cu.
The purpose of the current drill program is to expand the Leo Lake copper-zinc mineralization at depth, to discover new
copper-zinc zones and to confirm a new geologic model for the sulphide mineralization in the area. An additional drill
program will be undertaken subject to the results of the initial drilling.
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