Tower’ Step-Out Drilling at Rabbit North Confirms North-Northwest Strike of Lightning Zone, Continues to Obtain Wide Intercepts with Pyrite Levels Similar to Discovery Hole 026
Tower’ Step-Out Drilling at Rabbit North Confirms North-Northwest Strike of Lightning Zone,
Continues to Obtain Wide Intercepts with Pyrite Levels Similar to Discovery Hole 026
Vancouver, B.C. – September 15, 2022 - Tower Resources Ltd. (“Tower” or the “Company”) (TSXV: TWR)
is pleased to provide a progress report on the step-out diamond drilling program report that is underway
on the new Lightning Zone gold discovery on the Company’s Rabbit North property near Kamloops, British
Columbia, between New Gold’s New Afton underground Cu-Au mine and Teck’s Highland Valley open pit
Cu-Mo mine (see Fig. 1). Four of the planned six to eight drill holes have been completed and the core
from the first three hole, Nos. RN22-034 to 036, has been cut and submitted for assay.
North-Northwest Strike Confirmed
A key objective of the present drilling program was to confirm indications from the previous March-
April drilling program that the Lightning Zone strikes north-northwest (NNW) rather than northeast as
originally anticipated. The new drilling has confirmed the predicted strike, with step-out holes both NNW
and SSE of Discovery Hole RN21-026 (95 m of 1.40 g/t Au including 19.2 m of 4.21 g/t Au; see Tower’s
January 11, 2022 press release) hitting the zone precisely where expected (see Fig. 2).
Visual Characteristics of the Lightning Zone
As in discovery Hole 026, the Lightning Zone in Holes 034 to 037 is hosted mainly by andesitic crystal-
ash tuff and is recognizable visually from intense shear-related fracturing/brecciation and pervasive
bleaching and sericite-silica-pyrite alteration (see Figs. 3, 4) extending over core lengths ranging from
tens of metres to more than 100 metres. The zone appears to be near vertical.
The core length of the zone-compatible alteration is dependent on both the dip of the drill hole and the
proximity of the hole to a nearby diorite plug. This plug is centered on Hole 025 approximately 200 m
southeast of discovery Hole 026 (see Fig. 2).
The longest intercept of the alteration zone is ~150 m in Hole 036, a 60 m step-out NNW of Discovery
Hole 026. This hole was drilled ENE at a steep, -75° dip to replace Hole 035 which was drilled from the
same pad at -60° and abandoned in the zone at 129 m due to difficult drilling conditions. Hole 037 is
currently being drilled 20 m further NNW along strike but oriented WSW in scissors fashion relative to
Hole 036.
The shortest intercept is ~10 m in Hole 034, a 50 m step-out SSE of Discovery Hole 026 on the west side
of the diorite plug. The shortening of the zone here is due to most of the host tuff horizon being
supplanted by the diorite. While the diorite appears to be less susceptible to shearing and alteration than
the tuff, it does contain several strongly pyritic shears. Future step-outs further SSW along strike should
encounter thicker tuff as the diorite contact swings back to the southeast.
Pyrite Content of the Alteration Zone
Due to the sympathetic relationship between the pyrite and Au contents of the Lightning Zone and the
long wait for assays, we are now placing more emphasis on accurately determining the pyrite content
of the core. In addition to estimating with a hand lens the average pyrite content over similarly altered
core intervals, we are determining the percent pyrite systematically, and more precisely by binocular
microscope, from short pieces of core at 2 m intervals to guide the drilling until the Au assays are received.
Interestingly, the average pyrite contents of the 150 m altered section in Hole 036 and the 95 m
mineralized section of the Lightning Zone in Discovery Hole 026, excluding occasional spikes over 15%
pyrite in both holes resulting from the chance presence of a pyrite vein at a 2 m mark, are very similar at
3.2 and 2.7%, respectively.
Large New Porphyry Cu-Au Zone
The diorite plug is completely covered by till and partly by thin Chilcotin basalt flows but appears to be an
apophysis of the larger Durand Stock to the north (see Fig. 2). It is approximately 400 m in diameter. All
of the diorite intersected in the plug to date contains porphyry-style Cu-Au mineralization, typically at
grades of 0.1-0.2% Cu and 0.2-0.3 g/t Au. If the entire top of the plug is similarly mineralized, the
indicated Cu-Au zone is much larger and potentially more prospective than any of the nine known Cu-
Au zones associated with the Durand Stock.
Methods and Qualified Person
The drill core is being logged at Tower’s leased, fully equipped core facility near Kamloops under the
supervision of Matthew Husslage, BSc. Geology, and Dane Bridge, MSc., P.Geo., both of whom have
extensive experience with shear-hosted gold deposits and have previously worked on the Rabbit North
property.
Split samples of the core, generally 1-2 m in length, are delivered directly to Activation Laboratories
(ActLabs) in Kamloops, BC, a laboratory certified as ISO/IEC 17025 Accredited (Lab 790) by the Standards
Council of Canada. QA/QC samples including blanks and standards are inserted regularly into the sample
sequence at a ratio of approximately 1:20.
The samples are being analyzed for Au by fire assay and ICP-OES and for Ag and 36 additional elements
by ICP-OES using a four-acid, near-total digestion. Any over-limit (>5 g/t) Au analyses are repeated using
the same fire assay procedure but with a gravimetric rather than ICP finish.
The technical content of this news release has been reviewed and approved by Stuart Averill, P.Geo., a
Director of the Company, and a Qualified Person as defined by National Instrument 43-101.
About Tower Resources
Tower is a Canadian based mineral exploration company focused on the discovery and advancement of
economic mineral projects in the Americas. The Company’s key exploration assets, both in B.C., are the
Rabbit North copper-gold porphyry project located between the New Afton copper-gold and Highland
Valley copper mines in the Kamloops mining district and the Nechako gold-silver project near Artemis’
Blackwater project.
On behalf of the Board of Directors
Tower Resources Ltd.
Joe Dhami, President and CEO
(778) 996-4730
www.towerresources.ca
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Figure 1 – Location of Tower's Rabbit North property relative to the active mines of the Kamloops
district.
Figure 2 – Plan view of the Lightning Zone with the main Au intercepts projected to surface. The first
four holes from the current drilling program are also shown but the core has not been
assayed.
Figure 3 – Panoramic view of the core shack showing core from Holes 34 to 37. Roughly half of the core
exhibits Lightning Zone compatible shear deformation and hydrothermal alteration.
Figure 4 – Examples of andesitic ash tuff from Holes 34 to 37 showing the characteristic fracturing,
bleaching and silicification, sericitization and pyritization of the Lighting Zone.