The Cat Camp project area comprises two
contiguous exploration licence applications of E15/827 and
E15/830 that cover an area of 153km2. The tenements are
located in the northeastern parts of the Lake Johnston
greenstone belt and include strike extensions of greenstone
stratigraphy prospective for nickel sulphide mineralisation.
The tenements include parts of a north-northwest
trending sequence of interlayered ultramafic rocks and BIF
within a two to five kilometre wide greenstone sequence. The
greenstone sequence is bounded by granite to the east, and the
large Koolyanobbing Shear. Outcrop within the project area is
poor, being largely covered by a variably stripped laterite
profile and aeolian sand. Consequently, knowledge of bedrock
geology is heavily reliant on extremely limited drilling data
and interpretation of aeromagnetic data.
Click on image for full graphic  Lake Johnston Region Northern
Tenements
There is no record of significant exploration activity
within the project area prior to the mid 1990s. Reported
exploration activities commenced in 1997 with Central
Kalgoorlie Gold Mines carrying out nickel sulphide exploration
over the northern parts of the Lake Johnston greenstone belt.
Their work included geological reconnaissance and
interpretation of aeromagnetic data that generated 15 targets,
based on magnetic signature. Two of these targets, located 2km
south of the current project area, were considered high
priority and followed up with ground EM surveys which outlined
two bedrock conductors located 700m apart within an
interpreted mafic/ultramafic sequence. Subsequent drill
testing of the conductors intersected sulphides with grades up
to 3990ppm Ni. Downhole EM was completed and off-hole
conductors detected, however no follow-up work was carried
out.
These results are considered significant in light
of the detection of bedrock conductors, and subsequent
intersection of nickel bearing sulphides. These results
highlight the nickel sulphide prospectivity of the northern
parts of the Lake Johnston greenstone belt where Regency’s Cat
Camp project area is located.
Regency had proposed a
work program to evaluate the nickel sulphide potential of the
Cat Camp project. The program includes interpretation of
aeromagnetic data, surface geochemistry, geological mapping,
and a ground EM survey.
Based on an independent
geological report prepared by Baxter
Geological
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