Golden Birch Outlines Key Targets at Keveri Project including Exploration Results for Flagship Omu Prospect
Golden Birch News Release – March 10, 2020
1
140 Cook’s Lake Road
Timmins, Ontario
P4R 0B7 Canada
Golden Birch Outlines Key Targets at Keveri Project including
Exploration Results for Flagship Omu Prospect
Timmins, Ontario (March 12, 2020) - Golden Birch Resources Inc. (CSE:GBRX) (“Golden Birch ” or the
“Company”) is pleased to announce key copper-gold targets at the Keveri Project, located 200 kilometres
southeast of Port Moresby, Papua New Guinea (“PNG”), including exploration results for the Company’s flagship
Omu Prospect.
Highlights:
Most copper-gold targets at Keveri located proximal to intersection of northeast-southwest transverse
structures and arc parallel northwest-southeast fault zones within the Papuan Mobile Fold Belt
Targets include the Company’s flagship Omu Prospect and Waki, Daru/Araboro & Everi Prospects
Targets contain copper (and some gold) mineralization at surface and all are untested by drilling
Targets show hydrothermally altered porphyry intrusions and porphyry related alteration zones
Exploration by the Company at Omu Prospect yields multiple potential drill targets with coincident
geological, geochemical and geophysical anomalies
Drill hole targeting in progress at Omu Prospect - future announcement to provide details
Exploration results to be provided in future announcements for Waki, Daru/Araboro & Everi Prospects.
Alan Martin, President & Executive Director of Golden Birch states: “We are very excited with the exploration
results across the Keveri Project, and at our flagship Omu Prospect. Our exploration program in late 2018 and
early 2019 at Omu has delivered anomalous and coincident results from geological mapping, geochemical
sampling and geophysical surveying. This will enable us to best locate drill holes to test these targets beneath
the surface. We also have anomalous copper and gold results for two new discoveries within the Keveri Project
- Waki and Everi - with these results to be provided in future news releases.”
Figure 1: Copper and gold deposits of PNG (table in bottom left of figure), with the location of the Keveri Project within
the Papuan Mobile Fold Belt. The Company only has an interest in the Keveri Project. Source data for the deposits
provided in Appendix 4. Mineralization hosted on adjacent and/or nearby properties and operations is not necessarily
indicative of mineralization hosted at the Keveri Project.
Golden Birch News Release – March 10, 2020
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140 Cook’s Lake Road
Timmins, Ontario
P4R 0B7 Canada
Figure 2: Satellite Image of Keveri Project. The Owen Stanley & Keveri Fault Zones are northwest-southeast “arc parallel”
structures of the “Papuan Mobile Fold Belt” or “New Guinea Fold Belt”. Known porphyry copper deposits in the Papuan
Mobile Fold Belt are located proximal to the intersection of these structures (Figure 1 and Appendix 4). The Keveri Project
(approximate location outlined in blue) has multiple transverse structures associated with the Dimidi Trend (Papuan
Minerals Ltd, Exploration Report, D. Lindley, January 2018) which intersect these arc parallel faults.
Figure 3: Copper-gold targets within the Keveri Project being explored by Golden Birch. Omu is the flagship prospect for
the Company and denoted with a larger red dot symbol.
Golden Birch News Release – March 10, 2020
3
140 Cook’s Lake Road
Timmins, Ontario
P4R 0B7 Canada
Exploration Work Completed by Golden Birch at Keveri Project late 2018 and early 2019
Preliminary field mapping and sampling was undertaken at a regional scale of 1:5000 on each prospect covering
an aggregate area of 10 square kilometres using a combination of compass-and-tape traverses and GPS (Global
Position System) point mapping. This was followed up with detailed 1:1000 (“Anaconda”-style) mapping and
sampling on areas deemed prospective for copper mineralization. Geological fact maps were produced from the
detailed mapping on all prospects resulting in the creation of interpretive maps (e.g. geology, alteration, sulfide-
oxide occurrences and veins).
A total of 702 rock samples for all prospects (Omu, Waki, Everi and Daru/Araboro) were collected for analytical
and petrological investigation during the entirety of the geological mapping campaign which included
reconnaissance mapping and prospecting campaigns. A description of the sampling and analysis technique is
provided in Appendix 3.
Detailed mapping at Omu has revealed hydrothermal, multi-phase porphyry altered intrusions and anomalous
surface copper mineralization (both hypogene and supergene) from creek float (loose rock) material and
outcrops. In fact, this is also the case for all other prospects within the Keveri exploration licence areas.
Summarised below are the geological characteristics of each prospect (Table 1):
Table 1: Key geological characteristics for each of the key prospects within the Keveri Project
Prospect Host Rock/s Intrusion Alteration Mineralization Size(1)
Omu Basalt Tonalite,
Diorite,
Quartz
Diorite
chlorite+sericite, silica+pyrite
(overprint), K-spar, epidote and
clay (altered clasts),
epidote+magnetite
chalcopyrite, bornite,
chalcocite, malachite,
chrysocolla
1.5km x
1.5km
Waki Basalt,
Limestone
Diorite,
Microdiorite
chlorite+sericite,
pyrite+silica+clay,
epidote+magnetite
chalcopyrite, bornite,
malachite, azurite
1.0km x
1.0 km
Everi Basalt,
Limestone
Microdiorite,
Diorite,
Gabbro
chlorite, epidote+chlorite,
chlorite+sericite, epidote,
clay+sericite+silica (alteration
in diatreme)
chalcopyrite, bornite,
malachite
0.5 km x
0.5 km
Daru Ultramafic-
mafic rocks
Diorite,
Microdiorite,
Quartz
Diorite
K-spar+magnetite+epidote,
chlorite+epidote,
quartz+sericite+pyrite
(overprint)
chalcopyrite, bornite,
malachite
1.0 km x
1.0 km
Note:
(1) Size reflects the anomalies of the prospects as represented by geological, geochemical and geophysical (in the case of Omu) characteristics.
Geochemical Sampling (Soil and Rock) at Omu:
A 100m x 100m geochemical soil sampling program using a hand auger drill was carried out at the Omu
target area from February to May 2019. A total of 448 soil samples were collected during the soil
sampling program. A description of the sampling and analysis technique is provided in Appendix 3.
Geochemical results at Omu yielded a semi-cohesive copper-in-soil footprint (Cu values vary from 180 to 1660
ppm) over an approximate area of 1.5 kms x 1.5 kms coincident with porphyry intrusive rocks associated with
hydrothermal alteration and copper mineralization, IP chargeability and ground magnetic anomalies (Figure 4).
Golden Birch News Release – March 10, 2020
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A total of 466 rock samples were collected over the Omu prospect. Figures 5, 6 and 7 illustrate the location of
rock samples with anomalous copper from these samples. These samples are grab samples of float and in situ,
and are selective in nature and are not representative of the mineralization hosted on the properties. A summary
of the anomalous results from these rock samples is provided in Appendix 2.
Figure 4: Omu prospect summary map illustrating the results of the detailed geological mapping. Anomalous copper in
soil anomalies are plotted over the mapped geology along with the anomalous copper in both outcrop and float samples.
Selected Rock Samples for Illustration:
The following rock samples have been selected for inclusion in this release with description of samples below.
Photos of these samples are provided in Appendix 1 along with locations of the samples in Figure A1;
1, Sample 106706, from centre of Omu Main IP target area. Caption in photo reads; Quartz vein breccia float
with chalcopyrite and malachite, 3.49% Cu, 0.024 Au ppm. Sample size in photo, 6-8 cm.
2, Sample 106717, from Didu East creek. Caption in photo reads; chlorite-sericite altered diorite float with
chalcopyrite + bornite, 7.7% Cu, 0.089 Auppm. Didu East creek is a very narrow creek south of Omu Creek
and is entirely contained with the Omu Main IP target area. Sample size in photo 6-8 cm.
Golden Birch News Release – March 10, 2020
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3, Sample LD0031, from Omu Main IP target area. Caption in photos reads; Grab sample from 3m wide
outcrop of poorly sorted hydrothermal breccia with angular K-feldspar, epidote and clay-altered clasts set in
a weakly magnetic cement. Chalcopyrite as blebs/disseminations. Tungsten pen for scale.
4, Sample EA-009, from Omu NE IP target area. Caption in photo reads; Grab sample from a transitional
gossanous sub-crop of microdiorite with chalcopyrite and pyrite blebs/disseminations associated with
hematite and limonite coatings. Sample size in photo 6-8 cm. 0.485% Cu, 0.017 Au_ppm, 45.3 Mo_ppm.
5, Sample 109435, from southwest part of Omu Main IP target area. Caption in photo reads; Grab sample
from a transitional gossanous outcrop of microdiorite with very fine disseminations of chalcopyrite and pyrite
associated with limonite coatings. Tungsten pen for scale.1.7% Cu, 0.019 Au_ppm, 9.3 Ag_ppm.
6, Sample RF-18100910, sample near up-dip projection of Omu Main IP target. Caption in photo reads; Float
sample in Omu Creek of quartz+chalcopyrite vein hosted by diorite with strong malachite coatings.
7, Sample RF-18100806, sample near up-dip projection of Omu Main IP target. Caption in photo reads;Float
sample in Omu Creek of limonitized rock with chalcopyrite and strong malachite coatings (sample 6-8 cm).
8, Sample 106782, sample south of Omu Creek. Caption in photo reads; Grab sample from an outcrop of
brecciated and silicified rock associated with chalcopyrite and bornite. Sample size in photo 6 cm.
9, Sample RF-18100804, sample in Omu Creek near up-dip projection of Omu Main IP target. Caption in
photo reads; Float sample of intrusive with silica+chalcopyrite+bornite vein hosted by intrusive. Strong
chalcopyrite in fractures. Sample size in photo 6-8 cm. 9.49% Cu, 0.17 Au_ppm, 9.9 Ag_ppm, 2 Mo_ppm.
10, Sample EA-026, from Didi Creek south within southeastern part of Omu Main IP target area. Caption in
photo reads; Angular float sample of a silicified and oxidized rock with pyrite and chalcopyrite associated
with sericitic/clay alteration. Sample size in photo 7 cm. 0.164% Cu, 5.2 Au_ppm, 10 Mo_ppm.
Golden Birch News Release – March 10, 2020
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Figures 5 & 6: Anomalous copper results at Omu for both Outcrop (figure above) and Float Samples (figure below).
Golden Birch News Release – March 10, 2020
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Geophysical Survey:
An induced polarisation (“IP”) geophysical survey was completed by SJ Geophysics (of British Columbia, Canada)
at the Omu prospect area from May to June 2019. A total of 50 line-kms were surveyed along with a ground
magnetic survey. The IP survey had an approximate survey depth limitation of 350 m to 400 m below surface.
Results from the IP survey delineated two main chargeability anomalies occurring to a depth of >=335 metres
labelled Omu Central (or Main) and Omu Northeast (NE) (Figures 8 – 14). These chargeability anomalies are
sometimes coincident with mapped surface hypogene copper mineralization at surface hosted by both the
younger intrusive rocks and/or older basalt wall-rocks.
Figure 7: Plan view of the IP anomalies. Key IP anomalies named Main Target and NE Target.
Golden Birch News Release – March 10, 2020
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Figures 8: Long section looking from south to north illustrating the strike length of the Omu Main and Omu NE targets.
Given the depth limitation of the IP survey, both the Main and NE targets appear open at depth.
Figures 9: This section is a view from east to west and illustrates the thickness of the Omu Main and Omu NE targets.