Redstar Gold Announces 2017 Exploration Program Drill Results from the Unga Gold Project, Alaska
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Redstar Gold Announces 2017 Exploration Program Drill Results
from the Unga Gold Project, Alaska
Key Highlights:
• Followup Fall Drill Program to commence in 4 to 6 weeks.
• Summer program designed to understand and test the SW Extension of Shumagin:
o Shumagin breccia structure extended 400m by drilling to 1,600m.
o Visible gold identified 370m to the SW from Main Breccia at 202m below
surface.
o Hole 17-SH-34 intersects 2.2m of 9.9 g/t of gold & 29.3 g/t of silver.
o Geophysics program identifies new parallel footwall structure.
o Soil sample program has identified multiple new structures and target areas.
August 22, 2017: Redstar Gold Corp. (TSX.V: RGC, US: RGCTF, FRA: RGG) ("Redstar"
or the "Company") today announces drill results from its 2017 Spring/Summer Exploration
Program, at the 100% controlled Unga Gold Project in Alaska. Final assay results are now
received and compiled below. The program included approximately 600 soil samples, the
completion of a 15.5 line-km MAG and 8.7 line-km IP geophysical survey, and a twelve (12)
drill hole program totaling 2,287.8 m of HQ & NQ diamond drilling:
• The 2017 summer exploration drill program focused on initially testing and reviewing the
geological model over a distance of an additional 400m to the southwest of the known
Shumagin Gold Zone, which currently strikes over approximately 950m.
• The Company now has significantly more drilling information that it will apply to its
updated geological model and assist in the understanding of the controls that guide the
mineralization. This model will be used towards a follow-up drill program to commence
in in the next 4 to 6 weeks.
• Please see audio / video link www.redstargold.com/investors/presentations-and-
media/ for latest interview with Redstar’s CEO and VP Exploration
Peter A. Ball, President and CEO commented, “Preliminary drilling has extended the known
strike length of Shumagin to 1,600m by intersecting the Shumagin structure in 10 out of 12 holes,
encountered visible gold 370m to the southwest in hole 17SH032, and has provided a better
understanding of the geological model and mineralization controls. This has provided the key
information on where to focus our next drill program and efforts at Shumigan and elsewhere
within the Unga Gold Project . Geological mapping and sampling towards the southwest from
Shumagin indicates a very strong expansion potential along strike for an additional approximate
3 kms towards the Orange Mountain Zone, the interpreted hydrothermal center along the
Shumagin Trend.”
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Geological Highlights from Preliminary Southwest Extension Drill Program
• Drilling intersected the targeted Shumagin-style breccia structure in 10 out of 12 drill
holes.
• Visible gold-bearing stockwork encountered in drill hole 17SH032 is identical to gold-
bearing stockwork intercepted in drill holes 16SH019 (370m to the NE) and 11SH010
(750m to the NE).
o Geological interpretation provides a strong indication for the potential of high-
grade mineralization located at depth below the similar Shumagin structure
identified in multiple holes within the SW Extension Zone.
• The Shumagin Gold Zone has been expanded by drilling approximately 400m towards
the southwest for a total of approximately 1,350m of strike length and remains open.
• 17SH034 intersected 2.2m @ 9.9 g/t gold & 29.3 g/t silver
• 17SH033 intersected 0.7m @ 5.7 g/t gold & 30.0 g/t silver
• Results from the 2017 soil sample program has identified multiple new target areas that
exhibit similar geochemical signatures to the Shumagin Gold Zone (Au, Ag, Zn, Pb, Cu).
Of the 12 drill holes completed during the program, 4 holes (17SH026 to 16SH029) were
designed to initially obtain accurate strike & dip measurements of the breccia system prior to
drilling additional step out holes towards the southwest (see Long Section L-L’).
Highlights of Selected Intervals from Drill Holes 17SH026 to 17SH037
* True widths of the mineralized intervals are close to ~80% of Core length
Drill Hole
ID
From
(m)
To
(m)
Core length
(m)i
Gold
(g/t)
Silver
(g/t)
17SH026 75.9 76.6 0.7 0.144 10.95
78.3 79.1 0.8 0.390 10.30
17SH027 142.3 143.3 1.0 0.431 28.50
160.9 161.5 0.6 0.029 12.05
17SH029 91.4 92.4 1.0 0.066 10.80
17SH030 76.0 77.1 1.1 0.507 2.38
17SH032 200.1 201.2 1.1 0.121 26.60
201.2 202.2 1.0 2.12 27.00
17SH033 78.3 79.0 0.7 5.69 30.00
100.6 101.5 0.9 0.972 11.30
101.5 102.4 0.9 1.33 15.05
17SH034 106.0 107.0 1.0 2.23 0.67
120.0 120.8 0.8 1.42 15.15
120.8 123.0 2.2 9.90 29.30
17SH035 228.8 229.8 1.0 0.020 9.34
17SH037 217.5 218.8 1.3 0.018 12.60
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Step out drill holes 17SH030 and 17SH031 targeted shallow projections approximately 75m
below the surface along strike of the breccia system, whereas drill holes 17SH032, 17SH035,
17SH036, and 17SH037 were drilled along 100m grid lines for approximately 500m of strike
with a goal to trace the breccia system at approximately 150m below the surface. Drill holes
17SH033 and 17SH034 were designed as infill holes to allow for connectivity of geological
models within the Main Breccia area in the Shumagin Gold Zone.
Based on results from the 2016 Fall Drill Program, high-grade gold-silver mineralization within
the Shumagin Gold Zone occurs at depth for approximately 950m of strike length and is not
constrained to a northeast plunging mineralized shoot as previously interpreted.
The 2017 Summer Drill Program was designed to understand and to test an approximate
(previously not drilled) 500m of strike-extent within the SW Extension Zone of the Shumagin
Gold Zone. The program sucessfully traced out the Shumagin breccia system for an additonal
approximate 400m along strike, encountered visible gold in hole hole 17SH032, but encountered
lower grade mineralization throughout a number of other drilled holes. Data for the southwest
extension is currently being geologically modelled and reviewed noting that very similar nature
and geological characteristics were encountered that previously yielded much higher grade in the
Main Breccia and Bunker Hill areas within the Shumagin Gold Zone. Surface exposures and
drilling data collectively indicate that the Shumagin Gold Zone is appromxately 1.6 kms in strike
length and remains open, and a further understanding is required of what may exist below the
recent holes drilled in the southwest.
Geological relationships from the SW Extension Zone indicate that intermediate sulfidation
breccia/veining can occur at depth below residual quartz bodies near the transition of Advanced
Argillic Alteration to less acidic Phyllic & Propylitic assemblages and represents a significant
exploration vector for the Unga Epithermal Gold District.
See LINK for the Long Section L-L’: New 2017 drill hole intercepts highlighted as red stars
The approximate 1,600m Shumagin Gold Zone, as defined by surface mapping, surface
geochemical sampling and drilling, is part of the approximate 9 km long Shumagin Trend, a
major regional structure responsible for the localization of epithermal mineralization along its
exposed strike length. Geological mapping and sampling towards the southwest from Shumagin
indicates a very strong expansion potential along strike for an additional approximate 3 kms
towards the Orange Mountain Zone, the interpreted hydrothermal center along the Shumagin
Trend. Geochemical trends observed within the footwall at Shumagin indicate a strong potential
for additional hidden targets nearby the Shumagin Gold Zone and represent additional high-
priority exploration zones.
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The Shumagin Gold Zone is one of up to 14+ noteworthy gold-silver structures, totaling close to
35+ line-km of combined strike length either known or tested on Redstar’s Unga Gold Project
and is a high-priority exploration target.
See LINK for the Shumagin Plan Map highlighting ~1.6 kms strike length of breccia bodies along
surface exposures and drill intercepts.
Results: Rhodo-breccia strike & dip test
The first four holes of the program 17SH026 to 16SH029 were drilled to obtain accurate strike &
dip measurements of the Rhodo-breccia exposed along the southwest-most crest of the Shumagin
Scarp (e.g. 2250-2200E) prior to step-out drilling along strike towards the southwest (see plan
map).
These drill holes covered approximately 90m of previously undrilled strike length to the
southwest from drill hole DDH38 (1987 drill hole, 0.92m @ 2.94g/t Au; 6.2 g/t Ag) and
approximately 100m below previously reported high-grade surface samples along the Rhodo-
breccia (e.g. 2.3m @ 37.2 g/t Au; 103.7 g/t Ag). Drill holes 17SH026 & 17SH027 were drilled
along grid line 2250E whereas drill holes 17SH028 & 17SH029 were drilled along grid line
2200E with drill holes targeting elevations of approximately 50m above sea level (ASL) & at sea
level (see Long Section L-L’).
All four drill holes intercepted typical geological framework localized along the Shumagin Scarp
(e.g. hangingwall pyroclastics, phreatomagmatic breccia, footwall basalt/andesite) which are
crosscut by multiple cockade-crustiform textured quartz-adularia-carbonate +/- rhodochrosite-
green clay breccia, veins and stockwork with < 1% disseminated pyrite, yellow sphalerite and
finer grained galena.
Sampled intervals of breccia, veins, and stockwork from these drill holes all returned lower than
normal values of gold (<1 g/t) with a maximum interval of 0.878ppm gold. Portions of the
sampled breccia intervals that exhibit textures and gangue mineralogy identical to areas with
high-grade gold mineralization (e.g. Rhodo Breccia & Greenbaum Vein) exhibited highly
anomalous levels of silver, lead, zinc and copper with little to no gold mineralization (17SH026-
Rhodo Bx: 0.144ppb Au; 10.95ppm Ag, 242ppm Pb, 678ppm Zn, 11,650ppm Mn. 17SH027-
Greenbaum Vein: 0.431ppb Au; 28.5ppm Ag, 309ppm Cu, 3050ppm Pb, 2590ppm Zn).
See LINK for the 2017 Drill Core Photos: The Rhodo Breccia (17SH026; left) and the Greenbaum
Vein/Breccia (17SH027, right). Both exhibit gangue-mineralogy and epithermal textures related to high-grade
gold mineralization observed elsewhere along the Shumagin Gold Zone.
Results: SW Extension Step Out Test
Two step out drill holes (17SH030 & 17SH031) collared along lines 2100E and 2000E were
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drilled to target shallow projections of the blind breccia system along strike for approximately
200m to the southwest (see plan map). Four other drill holes were drilled along 100m grid lines
(2100E to 1800E) for approximately 400m of strike targeting the breccia system at deeper
elevations at approximately 80m below sea level (see plan map).
Shumagin-style breccia, veins and stockwork were intercepted in drill holes 17SH030,
17SH031, 17SH032, 17SH035, & 17SH037 defining an E-W trending, moderately southeast
dipping (-65 degrees SE) continuation of the Shumagin Gold Zone for total combined strike
length of 1,350m. Minor zones of alteration and stockwork veining occur within large fault zones
within drill hole 17SH036 which indicates probable fault offset of the Shumagin Gold Zone in
the vicinity of line 1800E (see plan map).
Bedrock geology cut by the breccia system between gridlines 2200E to 1800E drastically
changes where the Shumagin Scarp typical hangingwall (pyroclastics) and footwall
(basalt/andesite) contact appears to have been offset approximately 100m to the south of EW
strike projections (see plan map). This most likely reflects a combination of the moderate
southeast dipping contact and offset via faulting. The Shumagin Scarp was intercepted in
shallow portions of holes 17SH037, 17SH032, 17SH035 & 17SH036 and defines the southwest
continuation of this major structure and could potentially host additional splays of the breccia
system where interconnected at deeper structural levels.
Footwall basalt/andesite units in the SW Extension area that host the intercepted QAC breccia
are extremely altered by Advanced Argillic (AA) assembles similar to those observed at Orange
Mountain and Empire Ridge. This alteration contrasts drastically from typical alteration
assemblages associated with the Intermediate Sulfidation breccia system along the Shumagin
Scarp. Footwall basalt/andesite and polymict breccia in the area are altered to a coherent, vuggy,
leached and variably sulfide-rich flat lying residual quartz lithocap that is approximately 50m
thick. The residual quartz lithocap is haloed by plumes of pervasive to wormy, sooty black
sulfides and veinlets and vugs filled with pyrite + dickite-clay veinlets that variably, pervasively
destroy original basalt/andesite volcanic textures.
Intercepts of the Shumagin Gold Zone consists of 0.5m to 3.0m wide zones of quartz-adularia-
carbonate-clay breccia and minor stockwork cross cut the AA altered footwall, and where
intercepted near the surface of drill holes 17SH030 & 17SH031, essentially define the upper
parts of telescoped system intercepted in three of the undercut drill holes (17SH032, 17SH035 &
17SH037). Breccia and stockwork intercepted at >100m down dip consist of 5m to 10m wide
zones of cockade-crustiform textured QAC breccia, veins and stockwork that are identical to
breccia drilled along the entire length of the Shumagin Gold Zone and have consistent carbonate,
green clay and similar sulfide & base metal assemblages.
Sampled intervals of breccia, veins, and stockwork from these drill holes exhibited highly
anomalous levels of silver, lead, zinc and copper with lower than normal values of gold ( <1
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g/t). Visible gold observed in quartz-adularia-carbonate stockwork localized in the footwall of an
approximate 6m wide QAC breccia intercepted in drill hole 17SH032 returned 1.0m @ 2.1 g/t
gold & 27.0 g/t silver. This relationship is identical to gold-bearing stockwork intercepted in
drill hole 16SH019 (370m to the NE) and 11SH010 (750m to the NE) and indicates the potential
of high-grade mineralization at depth below the SW Extension Zone.
See LINK for the Shumagin 3D Plan and Oblique Views.
Results: Infill Drill Holes
Two infill drill holes (17SH033 & 17SH034) were drilled along grid line 2450E and planned to
connect geological models within the Main Breccia Zone where a 100m gap existed to the
surface mineralization along the Rhodo Breccia. These two drill holes intercepted the typical
Shumagin Scarp geological framework and multiple QAC breccia, veins and stockwork zones.
Drill hole 17SH034 returned 2.2m @ 9.9 g/t gold & 29.3 g/t silver, whereas drill hole 17SH033
returned 0.7m @ 5.7 g/t gold & 30.0 g/t silver.
2017 Drill Program Geological Discussion
The 2017 drill program tested approximately 500m of blind strike extent within the SW
Extension area of the Shumagin Gold Zone and have sucessfully traced out the breccia system
for an additonal approximate 400m along strike. Surface exposures and drilling data collectively
have proven that the Shumagin Gold Zone is approximately 1,600m in strike length and remains
open. The 2017 drill program has thus effectively validated our structural models and geological
interpretation that breccia-vein systems within the Unga Gold Project can span large strike
extents and can be discovered via exploration drilling of hidden (or blind targets).
A number of sampled intervals of breccia, veins, and stockwork from a majority of the step-out
drill holes returned lower than normal values of gold (<1 g/t). Variable gold grade is a major
feature that is a typical phenomenon of high-grade epithermal systems worldwide, where gold
grade variability occurs at the hand sample level up to the outcrop level.
Outcrops devoid of gold-mineralization were tested during via drilling during 2016 at Bunker
Hill, where surface exposures of QAC breccia returned little to no gold values in rock samples,
yet exhibited the correct breccia textures, gangue mineralogy and trace element geochemistry.
Drilling below this gold-devoid outcrop returned multiple intercepts with high-grade gold
mineralization (16SH022, 1.5m @ 16.97g/t Au & 13.06g/t Ag; 16SH023 0.3m @ 34.5g/t Au,
16.45g/t Ag). Breccia intervals drilled at depth within the SW Extension area exhibit textures,
gangue mineralogy, base metal assemblages and geochemical signatures that are identical to
areas with high-grade gold mineralization elsewhere across the Shumagin Gold Zone.
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Additionally, visible gold observed within stockwork localized at the footwall contact of a QAC
breccia intercepted in 17SH032 is a one of the key features of super high-grade mineralization
localized elsewhere along the Main Breccia (15SH011; 1.9m @ 202g/t Au, 82 g/t Ag; 11SH010;
0.55m @ 738g/t Au & 408g/t Ag, 15SH018 1m @ 41.2 g/t Au & 130g/t Ag, BM-01, 3.04m @
41.04g/t Au & 31.5g/t Ag). These similar geological relationships that span over the strike
length of Shumagin indicate that with further drill testing, mineralized shoots may potentially be
identified below drill hole 17SH032.
Quality Control/Quality Assurance
The 2017 exploration program at the Unga Project includes a Quality Control/Quality Assurance
(QA/QC) program, overseen by Jesse C. Grady, Redstar’s Vice President of Exploration.
All analytical geochemistry of core samples from the 2017 Shumagin drilling project have been
reviewed for quality assurance and quality control. At this time no significant sample preparatory
or analytical problem has been found and ALS Labs has performed well and within expected
tolerances. All drill core samples were submitted to ALS labs Fairbanks, Alaska prep lab with
subsequent analysis at ALS labs Reno, Nevada or Vancouver, BC facility. All core samples were
submitted for prep using code PREP-31BY (Boyd crusher and rotary splitter; 1kg pulverized
split) with analysis for gold using AA-24 (50g fire assay) and multi-elements by ME-MS61m
(four acid digestion; ICP-MS; ICP-AES; Hg add-on).
Quality control is monitored by the insertion of blind certified reference standards and blanks
into each sample shipment at a frequency of 1 control sample per 10 core samples. All samples
are weighed prior to shipping. Sample weights were reviewed by comparing lab received weights
against shipped weights collected by field personnel. Any inconsistencies would identify sample
layout and sequence errors which could lead to miss-matched sample numbers and geochemistry.
No errors were encountered.
All blanks inserted show no detectable gold. Blank material used is a gold barren Tertiary age
basalt flow collected directly from a local quarry in Fairbanks, Alaska. Multi-element data for
the blanks has been reviewed and measured values fall within range for most elements (an
extensive database of analytical results for the blanks has been used to establish average values
to compare against). All gold control standards have been reviewed and compared against their
certified and published values. The standards all performed within thresholds as compared to the
certified standard for gold. Thresholds for standards follow the same protocol used by ALS labs.
Lab prepared duplicates (samples split in half after crushing as directed by the client) were
reviewed and analytical results for gold and multi-elements compare very well.
Jesse C. Grady, MSc, CPG-11592, is a Qualified Person as defined by NI 43-101. Mr. Grady
has prepared and approved the technical information contained within this release.
About The Unga Gold Project
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The 100% controlled Unga Gold Project covers key strategic portions of adjacent Unga and
Popof Islands, approximately 900 kms southwest of Anchorage, Alaska. Redstar controls a 240
square kms land package that is host to numerous structurally controlled, volcanic hosted
intermediate-sulfidation epithermal high-grade vein, breccia, stockwork and disseminated gold-
silver occurrences.
The Unga Project has excellent infrastructure, including direct daily flights from Anchorage, a
deep-sea port and a temperate climate. The former Apollo -Sitka gold mine, located on the
southern Apollo-Sitka Trend, was Alaska’s first underground gold mine and the site of historic
high-grade gold production.
About Redstar Gold Corp
Redstar is well-financed junior exploration company, with a very strong, supportive institutional
shareholder base, no debt, and is focused on high -grade gold exploration and advancing its high -
grade Unga Gold Project in Alaska. The 100% controlled Unga Gold Project is an intermediate
sulfidation epithermal high-grade gold project on a district scale, with the property encompassing
approximately 240 km 2, and containing multiple high grade gold zones drilled or identified at
surface. The former Apollo -Sitka gold mine, located on the southern Apollo -Sitka Trend, was
Alaska’s first underground gold mine and the site of historic high -grade (~10 g/t Au) gold
production. The Unga Gold Project has extensive infrastructure with daily flights from
Anchorage landing on a one mile long paved airstrip and a deep-water port on neighboring Popof
Island, and a moderate climate noting it resides at the 55 th degree latitude and next to tidewater.
In addition, Redstar owns approximately 19.5% of NV Gold Corp. (TSXV: NVX). Redstar also
owns 30% of the Newman Todd Gold Project, in Red Lake, Ontario, Canada.
On Behalf of the Board of Directors,
Peter A. Ball, President and CEO
For additional information please contact:
T: +1.604.245.5861
Toll Free: 877.310.3330
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Exchange) accepts responsibility for the adequacy or accuracy of this release.
Forward-Looking Information This release includes certain statements that may be deemed "forward-looking statements". All
statements in this release, other than statements of historical facts, that address events or developments that Redstar Gold
Corporation (the "Company") expects to occur, are forward-looking statements. Forward-looking statements are statements that
are not historical facts and are generally, but not always, identified by the words "expects", "plans", "anticipates", "believes",
"intends", "estimates", "projects", "potential" and similar expressions, or that events or conditions "will", "would", "may",
"could" or "should" occur. Although the Company believes the expectations expressed in such forward-looking statements are
based on reasonable assumptions, such statements are not guarantees of future performance and actual results may differ