Purepoint Uranium Completes the 2018 Winter Drill Program with the Discovery of a New Mineralized Shear Zone at Hook Lake
14 Mai 2018 - 12:45PM
Purepoint Uranium Group Inc. (the “
Company” or
“
Purepoint”) (TSX.V:PTU) today announced the
results of the latest winter program at its Hook Lake Project, a
joint venture between Cameco Corporation (39.5%), Orano Canada Inc.
(39.5%) and Purepoint (21%) in the Patterson Uranium District,
Saskatchewan Canada.
Scott Frostad, Vice President, Exploration explains: “The most
important discovery this winter drill season was a large,
mineralized graphitic shear running through the Dragon zone that is
hydrothermally altered and along the same geophysical trend as the
Spitfire discovery. The new structure, identified through drilling,
was only evident within select ground geophysical results and
currently remains untested for approximately five kilometres
between the Spitfire and Dragon zones. The final two holes at
Dragon this year (HK18-97A and 100A) intersected the strongest
radioactivity at Dragon to date and the most intense hydrothermal
alteration seen on the project outside of the Spitfire
deposit.”
A photo accompanying this announcement is available
at http://resource.globenewswire.com/Resource/Download/e1ac659e-b832-4d76-9e1c-5ae880e4383b
“By incorporating this year’s drill results and revisiting
available airborne and ground geophysical results, we have updated
the geological interpretation of the entire Patterson Uranium
District, from Fission Uranium’s Triple R Deposit through to the
northern most edge of the Hook Lake project,” said Chris Frostad,
President and CEO at Purepoint. “The geological and
geophysical patterns in which uranium mineralization presents
itself through this district is becoming increasingly clear.”
Highlights:
- Purepoint’s winter drill program has identified a new
mineralized graphitic shear running through the Dragon Zone that is
on trend with the Spitfire discovery. The new
structure, identified through drilling, was not previously visible
via airborne geophysics;
- The drill program followed increasing levels of radioactivity
and mineralization concluding with the two best holes to
date drilled outside of the Spitfire discovery;
- This new Dragon shear is associated with zones of intense
silicification and clay alteration in a geologic setting
identical to the Spitfire discovery;
- An updated geological interpretation of the entire Patterson
Uranium District using recent drill results and revisiting
available airborne and ground geophysical results, has led to new
prospective targets along the Patterson Lake trend;
- Significant exploration upside remains, including the potential
to utilize ground geophysics to provide targets between Spitfire
and Dragon, continued drilling of the Dragon shear towards the
northwest, as well as first-pass drilling of the Sabre zone, “U”
Conductor and areas of identified hydrothermal alteration within
the Derkson Corridor;
Dragon Area
The initial interest in the Dragon area was the strong clay
alteration and weakly anomalous radioactivity encountered by hole
HK17-72. A follow-up hole, HK17-81, targeted a ground
electromagnetic (EM) conductor and intersected a strong, previously
untested, graphitic shear associated with intense silicification in
the hanging wall. The Dragon shear zone is now known to be
approximately 200 metres wide, is composed of three to four
separate graphitic shears dipping southeast and has been tested
over a strike length of 750 metres. As with the Spitfire discovery,
the strong hydrothermal alteration is associated with the most
easterly graphitic shear and the hanging wall rock. The intensity
of the hydrothermal alteration and the radioactivity has been
increasing as the drill has moved along strike to the NE.
Drill Hole HK18-97A encountered the unconformity at 316.4
metres, drilled strongly silicified and clay altered granodiorite
gneiss to 495 metres, and returned 480 cps over 2.0 metres from the
downhole total gamma probe (Mount Sopris 2PGA-1000 instrument)
between 461.9 and 463.9 metres. Intense clay alteration and
graphitic shearing/fracturing was intersected between 495 and 525
metres and returned two downhole gamma spikes of 1,216 cps and
1,088 cps. Strongly silicified granodiorite gneiss was then
encountered to 599 metres and the hole was completed within
unaltered granitic gneiss at a depth of 641.0 metres.
Drill Hole HK18-100A, the final hole of the winter drill
program, was collared 100 metres NE along strike of hole HK18-97A.
The hole also intersected intense silicification and clay
alteration throughout most of the hole. Graphitic shearing was
present within strongly chloritized zones between 407 to 432 metres
and elevated radioactivity (up to 460 cps from downhole gamma
results) was associated with hematized mafic rocks overprinted by
intense silicification between 518 and 532 metres. The targeted
graphitic shear was intersected much deeper than expected, between
612 to 640 metres, and only returned weak radioactivity. The hole
ended in chloritized granodiorite at 672.8 metres.
Spitfire / Harpoon Discovery
Three holes drilled at Spitfire, stepping out towards the
northeast, hit mineralization extending the strike length by
approximately 85 metres with HK18-82 returning 1.04 per cent eU3O8
over 14.6 metres including 8.7 per cent eU3O8 over 1.3 metres
(Purepoint PR, Jan 18, 2018). An additional three holes were
drilled at Spitfire along strike to the NE, and one hole tested
below HK18-82, but did not intersect significant radioactivity.
Additional drilling to test for deeper mineralization will be
dependent on pending geochemical results.
Next Steps
- Geochemistry from the drill program will be compiled and
analyzed to help with the geologic understanding and to determine
if typical vectoring elements are useful for identifying future
drill targets.
- Ground electromagnetic surveying between the Spitfire and
Dragon zones will be required to identify the potential graphitic
shear that links these two areas.
- First-pass drilling of the Dragon shear towards the northwest,
the Sabre zone, the “U” Conductor and areas of identified
hydrothermal alteration within the Derkson Corridor.
About Hook Lake JV Project
Located along the Patterson Uranium District, the Hook Lake JV
is a project owned jointly by Cameco Corporation (39.5%), Orano
Canada Inc. (39.5%) (formerly known as Areva Resources Canada Inc.)
and Purepoint (21%). Operated by Purepoint since 2007, the
project consists of nine claims totaling 28,598 hectares including
the Spitfire high-grade discovery (53.3% U3O8 over 1.3 metres
within a 10 metre interval of 10.3% U3O8).
The Patterson Uranium District is a corridor lying across the SW
edge of Saskatchewan’s Athabasca Basin, interpreted to extend at
least 50km, hosting Fission Uranium’s Triple R deposit, NexGen’s
Arrow deposit and Purepoint Uranium’s Spitfire discovery.
Hook Lake’s latest drilling program was completed in Mid-April
with a total of 12,733 metres in 24 holes of diamond drilling,
guided by 350-metre step-outs towards the northeast along the eight
kilometre, 4,000 hectare Patterson target region that stretches
northeast across the property.
About Purepoint Uranium Group Inc. Purepoint
Uranium Group Inc. (TSXV:PTU) is focused on the precision
exploration of its ten projects in the Canadian Athabasca Basin,
the world’s richest uranium region. Purepoint proudly maintains
project ventures in the Basin with two of the largest uranium
producers in the world, Cameco Corporation and Orano Resources
Canada Inc. and its flagship project is the Hook Lake JV.
Scott Frostad BSc, MASc, PGeo, Purepoint's Vice President,
Exploration, is the Qualified Person responsible for the
technical content of this release.
THE TSX VENTURE EXCHANGE HAS NOT REVIEWED AND DOES NOT ACCEPT
RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THIS RELEASE. For
further information, follow us on Twitter @PurepointU3O8, visit our
website at www.purepoint.ca or contact us at: Purepoint Uranium
Group Inc. Chris Frostad, President and CEO (416) 603-8368
Purepoint Uranium (TSXV:PTU)
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