Found on the diamond board -
Snowfield and Challenger N143-101 Report
REPORT ON THE
WIRE PROPERTY
New 43 101 on SEDAR Wire Claims
19.0 Interpretation and Conclusions
Exploration to date on the WIRE property has consisted of an airborne magnetic
survey (1995), diamond drilling of one vertical core-hole (1995), a seismic survey
(1997), and ground-based magnetometer surveys (1996, 2005). The author has
reviewed the information and data and has concluded:
1. The property is underlain by Archean-aged granitoid intrusions cut by at
least one mafic dyke. Diamondiferous kimberlite intrusions occur within 16
km of the property (Drybones Pipe, DB02 Kimberlite, Mud Lake Sill). To
date, all the kimberlite occurrences discovered in the area have been
spatially located between the Hearne Lake Lineament and the Drybones
Bay Lineament.
2. The property encompasses a geophysical anomaly of the type generally
considered prospective for kimberlite intrusions.
3. The anomaly consists a positive total field magnetic bedrock feature
obscured by deep overburden (70 m) and capped by a round shallow lake
about 1 km in diameter.
4. The magnetic anomaly is crudely circular and is defined by ground-based
total field magnetometer responses elevated 20 to 60 nT above
background. The anomaly covers a 300 m diameter area (2005 survey).
5. Drilling of the airborne anomaly in 1995 lacked prior verification by surface
geophysics. The hole intersected granite basement and a mafic dyke. No
kimberlite was encountered. The substantial depth of overburden (70 m)
and the lack of available water caused technical drilling problems.
6. Some uncertainty remains regarding the original collar location of the drill
hole. The consensus from assessment reports is that Smith sited the drill
hole east of the anomaly thus missing the intended target. An additional
possibility is that the drill-hole was not drilled deeply enough to explore the
target. The deposit model at that time did not include sub-horizontal
kimberlite sills (e.g. Mud Lake Sill).
7. The 2005 magnetometer survey defines a northeast trending positive
linear response adjacent to the southeast margin of the circular anomaly.
This feature is typical of responses normally attributable to diabase dykes.
20.0 Recommendations
Based upon the results of previous work and upon the above conclusions, the
author recommends a two-phase work program on the WIRE property:
Phase 1:
The purpose of the Phase 1 program would be to obtain a clearer resolution of
the target magnetic anomaly and of the claim area in general through tighter grid
control and enhanced geophysical coverage.
Table 20.1
Proposed Geophysical Program
Work Detail Cost
Airborne Geophysics East-West flight-lines;1 km x 2 km
area;100 m line spacing; total field &
vertical gradient magnetometer, EM
$5,000
Ground Geophysics Grid, 25m line spacing across target lake;
Horizontal Loop EM and total field &
vertical gradient magnetometer coverage
$5,000
Phase 1: $10,000
Phase 2:
The purpose of the Phase 2 program would be to drill-test four kimberlite targets
defined by the 2005 total field magnetometer survey (see map, Appendix II).
Since these targets are under lake water or swamp, these conditions necessitate
a late winter drilling campaign based on ice or frozen ground. The all-inclusive
costs for a winter program are estimated to be $275 per metre drilled. Four
vertical drillholes are proposed; Table 20.2 lists the collar locations in order of
priority.
Table 20.2
Proposed Diamond Drill Program
Hole NAD27E NAD27N Depth Cost
DDH-1 363270 6897440 200 m $55,000
DDH-2 363370 6897400 200 m $55,000
DDH-3 363480 6897300 200 m $55,000
DDH-4 363280 6897120 200 m $55,000
Phase 2 800 m drilling $220,000
Phase 1&2 Total: $230,000
Additional work is contingent upon positive results from the Phase 2 drilling.
Respectfully submitted, |
