Early geological mapping and sampling
outlined anomalous Mo-W throughout intensely skarn altered tuffs of the Mount
Roberts Formation. The main zone of skarn alteration was exposed over a strike
length of more than 700m with visible molybdenite noted throughout. Grades of
up to 1.625% Mo and 0.1050% W were detected from surface grab samples suggesting
that the skarn had the size potential as well as grades to host a large high
grade open-pitable Mo-W deposit. A total of 6 diamond drill holes were designed
to test the lateral and vertical extent as well as overall thickness and grades
of the skarn alteration in areas where it was felt to be the most
volumetrically extensive.
Anomalous Mo and W were
discovered in five of the six holes completed with assay grades of 0.405% MoS2
over 4 m and 0.083% MoS2 over 11 m intersected in drill holes
GM-07-06 and GM-07-02 respectively (Table 1). Multiple zones of greater
than 0.05% MoS2 were also outlined over intervals ranging from 1 m to
7 m throughout the skarn with several higher grade zones of up to 0.125% MoS2
and 0.106% WO3 over 3.2 m and 0.242% MoS2 and 0.034% WO3
outlined in drill holes GM-07-01 and GM-07-05 respectively.
The higher grade intersection of
0.405% MoS2 over 4m in drill hole GM-07-06 occurs at a depth of 99 m
within intensely chlorite+epidote altered tuffs and siltstones. The
mineralization occurs as narrow molybdenite veinlets along fractures and shears
and within an 8 cm wide brecciated quartz-feldspar vein cross-cutting these
altered tuffs and siltstones. The 11 m of 0.083% MoS2 intersected at a depth of
63 m in drill hole GM-07-02 also occurs as fine disseminated molybdenite within
locally silicified intensely chlorite+epidote+garnet altered tuffs and
siltstones.
This style of mineralization is
similar to mineralization reported by Roca Mines in their 43-101 report for the
Max Mo Deposit, a 43 million tonne deposit (at 0.21% MoS2) located
approximately 150 km to the north of the Goat Mountain Property. The report
indicates that the main Mo mineralization in the Max Deposit occurs as broadly
dispersed disseminations and fracture filling veinlets within a stockwork zone
of intense quartz-feldspar altered schists.
These similarities as well as the extensive skarn alteration observed on
the Goat Mountain property seem to suggest that a Mo rich stockwork and
porphyry system may be present at depth in the area.
Cascadia plans to complete a full evaluation
of the 10,000 acre property during the next phase of exploration where several Lead
(Pb) – Zinc (Zn) – Silver (Ag) occurrences have been discovered in isolated
outcrops over a strike length of more than 1.5 kms along the southern part of
the property. These showings occur as
thin semi-massive to massive galena and sphalerite bands intercalated with
meta-limestones and schists with grades of up to 453 g/t Ag, 12.70% Pb, and
2.58% Zn reported from surface grab samples from one of these occurrences.
Geological Maps (Click Image for Larger View)
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| Table 1: DDH Assays |
GM-07-06 Drill Section |
Detailed Geology |
Detailed Gravity |
Showing Locations |
Regional Geology |