Barksdale Intercepts 15m of 1.74% Copper, 15m of 1.46% Copper, and 67m of 0.59% Copper at San Javier in Sonora, Mexico
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Barksdale Intercepts 15m of 1.74% Copper, 15m of 1.46% Copper, and 67m of 0.59% Copper at San
Javier in Sonora, Mexico
Vancouver, B.C. – December 16, 2021 - Barksdale Resources Corp. (“ Barksdale” or the “ Company”)
(TSXV: BRO) (OTCQX: BRKCF) is pleased to announce completion of the Phase I, 5,000 -meter drilling
program at the Cerro Verde zone, San Javier project Sonora, Mexico as well as the latest assay results from
16 additional drill holes. Importantly, all 36 drill holes from the current program have intersected various
concentrations of visually apparent copper mineralization and each of the 16 drill holes discussed in this
press release have assay-confirmed intercepts of copper mineralization above a 0.20% copper c ut-off grade.
These latest results continue to confirm continuity of drilled mineralization, as well as expansion of the
oxide copper footprint.
Drilling Highlights:
• Barksdale’s inaugural 5,000m drilling program at Cerro Verde has successfully concluded w ith all
36 holes encountering copper mineralization (assay confirmed and visually estimated from core
logging).
• Drilling has continued to confirm and expand the footprint of the Cerro Verde zone with key results
including significant near -surface oxide mineralization including 57m grading 0.74% copper
from surface (SJ21 -09), which included a 15m intercept of 1.74% copper from 12 -27m.
Additional shallow oxide intercepts include 15m grading 1.47% copper from surface (SJ21 -07),
and 66m grading 0.49% copper (SJ21-15).
• Step-outs from the Cerro Verde footprint of mineralization include 12m grading 0. 85% copper
from 6-18m and 12m grading 0. 54% copper from 33-45 (both from SJ21-08) as well as 12m of
0.45% copper from 30-42m (SJ21-18).
Rick Trotman, President and CEO of Barksdale commented: “ This is a great follow -up to the initial holes
that we announced in mid-October. Not only has the team demonstrated the robust nature of the supergene
copper zone but we are now starting to see the results of some of the st ep out holes that show that Cerro
Verde’s footprint still has room to grow. With 15 drill holes still at the assa y laboratory, including our last
batch of samples which was submitted during the first week of December , we anticipate additional results
to be announced during January and potentially into early February.”
Geology Discussion
Iron oxide copper gold deposits ( “IOCG deposits”) are generally recognized as containing significant
amounts of iron oxide minerals, such as magnetite and various forms of hematite. The San Javier deposit is
classified as an IOCG due to the occurrence of large amounts of hematite, spe cularite and goethite
associated with the copper ± gold mineralization , as well as its lack of porphyry -style veining.
Mineralization at San Javier was likely originally deposited as sulfide minerals, principally chalcopyrite
with lesser amounts of pyrite. As the deposit was exposed to oxide weathering, primary sulfides
precipitated secondary (oxide) copper mineral suite consisting of malachite, azurite, chrysocolla and
tenorite. In San Javier drill core these minerals are often seen as fracture c oatings and breccia -fillings.
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Typically, as weathering progresse d, acidic fluids that were generated from sulfide oxidation , then further
leached and mobilize d the copper until it encounter ed ground water . At this point leached copper
participated to for m zones of enriched secondary sulfide copper mineral ization. At San J avier the
predominant secondary sulfide mineral encountered in drill core to date is chalcocite. This suite of primary
oxide and secondary sulfide copper minerals can generally be proce ssed using industry standard heap-leach
techniques.
The San Javier deposit is complex due to post -mineral faulting including numerous low-angle faults found
within the deposit area . From drill evidence, the amount of displacement along these low -angle faults
suggests that mineralization in the Cerro Verde zone has likely been subjected to post -mineral
displacements, where blocks of mineralization have been separated from their original point of deposition .
Barksdale believes that continued geologic mapping and evaluation of the surrounding district may find
additional blocks of mineralization that were originally part of the same mineralizing system but
subsequently were dismembered and transported by faulting.
Figure 1. Plan view of the Cerro Verde zone showing the historic mineralization footprint relative to
recently completed drilling by Barksdale. The zone remains open in multiple directions.
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Based on assay data and visual copper estimates from drill core, the 2021 drilling has successfully extended
mineralization laterally from previous known drilling and indicates that the Cerro Verde mineralized zone
remains open particularly to the south, west, and northeast (see Figure 1). At depth, drilling has frequently
encountered a sharp boundary between zones of secondary sulfide copper mineralization (chalcocite) and
primary copper mineralization ( dominantly chalcopyrite ), again, indicating the pres ence of post -mineral
faulting. Additionally, the primary copper mineralization zones typically exhibit weak propylitic alteration
with disseminated chalcopyrite, suggesting that these zones are distal to the core of the IOCG mineralizing
system.
Figure 2. Three-dimensional view of the Cerro Verde zone highlighting select drill intercepts.
Table 1. Significant Drill Hole Results (Copper above 0.20%). True widths vary between 60-100% and
average 80%.
From To Interval Cu Au Type of
Hole (m) (m) (m) (%) (g/t) Mineralization
SJ21-06 183.0 250.0 67.0 0.59% 0.02 Oxide
SJ21-07 0.0 15.0 15.0 1.47% 0.04 Oxide
45.0 48.0 3.0 0.68% 0.02 Enriched
54.0 57.0 3.0 0.25% 0.01 Oxide
72.0 84.0 12.0 0.54% 0.01 Enriched/Primary
90.0 150.0 60.0 0.30% 0.03 Primary
156.0 183.0 27.0 0.36% 0.02 Primary
192.0 195.0 3.0 0.32% 0.00 Primary
SJ21-08 6.0 24.0 18.0 0.64% 0.03 Oxide / Enriched
27.0 30.0 3.0 0.29% 0.02 Primary
33.0 45.0 12.0 0.54% 0.03 Enriched / Primary
57.0 66.0 9.0 0.26% 0.04 Primary
SJ21-09 0.0 57.0 57.0 0.74% 0.08 Oxide
including 12.0 27.0 15.0 1.75% 0.03 Oxide / Enriched
66.0 72.0 6.0 0.39% 0.01 Primary
114.0 120.0 6.0 0.25% 0.03 Primary
129.0 132.0 3.0 0.22% 0.10 Primary
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From To Interval Cu Au Type of
Hole (m) (m) (m) (%) (g/t) Mineralization
135.0 150.0 15.0 0.32% 0.14 Enriched / Primary
SJ21-10 54.0 57.0 3.0 0.26% 0.04 Enriched
60.0 63.0 3.0 0.26% 0.03 Enriched
69.0 72.0 3.0 0.36% 0.02 Enriched
171.0 216.0 45.0 0.52% 0.09 Oxide /Enriched
SJ21-11 15.0 87.0 72.0 0.36% 0.01 Enriched / Primary
147.0 150.0 3.0 0.21% 0.02 Enriched
162.0 165.0 3.0 0.20% 0.06 Primary
171.0 175.5 4.5 0.33% 0.02 Primary
SJ21-12 90.0 93.0 3.0 0.21% 0.02 Oxide
102.0 105.0 3.0 0.21% 0.03 Primary
150.0 153.0 3.0 0.22% 0.06 Enriched
159.0 165.0 6.0 0.20% 0.04 Oxide
SJ21-13 75.0 87.0 12.0 0.32% 0.14 Oxide/Enriched
SJ21-15 0.0 6.0 6.0 0.30% 0.03 Oxide
42.0 108.0 66.0 0.49% 0.01 Oxide
120.0 123.0 3.0 0.22% 0.06 Enriched
SJ21-16 0.0 6.0 6.0 0.38% 0.03 Oxide / Primary
9.0 12.0 3.0 0.25% 0.74 Primary
27.0 30.0 3.0 0.20% 0.00 Primary
33.0 42.0 9.0 0.36% 0.03 Primary
SJ21-17 0.0 27.0 27.0 0.29% 0.04 Oxide / Primary
42.0 45.0 3.0 0.27% 0.01 Primary
SJ21-18 30.0 42.0 12.0 0.45% 0.23 Enriched/ Primary
SJ21-19 6.0 7.5 1.5 0.22% 0.07 Primary
24.0 33.0 9.0 0.63% 0.23 Oxide / Enriched
SJ21-20 0.0 12.0 12.0 0.24% 0.02 Oxide
15.0 18.0 3.0 0.20% 0.01 Primary
30.0 33.0 3.0 0.28% 0.01 Primary
48.0 51.0 3.0 0.20% 0.02 Primary
84.0 87.0 3.0 0.34% 0.01 Primary
SJ21-21 3.0 18.0 15.0 0.32% 0.04 Oxide / Enriched
27.0 30.0 3.0 0.47% 0.04 Primary
SJ21-22 3.0 9.0 6.0 0.22% 0.01 Oxide / Primary
18.0 21.0 3.0 0.21% 0.03 Enriched
Resource Calculation and Economic Studies
The Company has completed logging and sampling 36 drill holes from the recently completed 5,000m
drilling program and is presently working to complete an updated geologic model in early Q1 2022 . Once
the remainder of the assay results have been received and incorporated into the model, Barksdale will be
able to calculate an initial resource for the Cerro Verde zone . The Company is looking to complete a
resource calculation during the first quarter of 2022. In total, there are over 100 historic and new drill holes
that define a zone of copper mineralization that has a footprint of approximately 1. 2km long by 350m wide,
which is exposed at surface on the eastern hillside at the Cerro Verde.
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Based on the results from the planned resource calculation and ongoing metallurgical program (detailed in
the next section), Barksdale would be in a position to undertake a preliminary economic assessment
(“PEA”) at the Cerro Verde zone in the first half of 202 2. The Company is currently soliciting and
reviewing bids from various leading technical consulting firms that would complete the PEA as well as the
resource calculation, with oversight provided by Andrew Pooler, Barksdale’s SVP of Project Development .
Mr. Pooler has overseen the delivery of dozens of economic and technical studies during his career and has
built and/or been responsible for the production performance of open pit and underground mines in North,
Central and South America with both heap leach and mill recovery circuits.
Metallurgical Program
Barksdale currently has eight metallurgical column tests ongoing with McClelland Laboratories in Sparks,
Nevada that represent material from four composite samples . Each composite has been crushed t o 80%
passing 25mm (1 inch) and each composite has two tests . For each composite, one column is tested using
an acid agglomeration cure and the other column is tested without an acid agglomeration cure . The
raffinate used for the tests contains 5 grams p er liter of sulfuric acid with an irrigation rate of 6
liters/hour/m2. The column tests will provide Barksdale with metallurgical recovery data with respect to
how well the copper mineralization, both oxide and sulfide, respond to heap leach processing.
The table below highlights the parameters of the ongoing tests and initial results:
Table 2. Metallurgical Program Data
The tests are designed with a 90 -day leach cycle and will conclude in late January . Based on preliminary
data collected after 40 days of irrigation , copper extraction is performing very well and the impact of the
acid agglomeration cure on recovery is negligible, suggesting that not only is the mineralization amenable
to cost-effective heap leaching processing, but a lower capital heap leach design (with no agglomeration
equipment) could be achieved.
Test # Composite
#
Total Cu
(%)
Acid Soluble
Cu (%)
NaCN Soluble
Copper (%)
Cu Extracted
(%) at 40-
Days
Acid & NaCN
Soluble Cu
Extracted (%)
at 40-Days
1 4726-001 0.416% 0.077% 0.147% 17% 32%
2 (cure) 4726-001 0.416% 0.077% 0.147% 14% 27%
3 4726-002 0.601% 0.531% 0.051% 52% 53%
4 (cure) 4726-002 0.601% 0.531% 0.051% 53% 55%
5 4726-003 0.388% 0.352% 0.013% 65% 69%
6 (cure) 4726-003 0.388% 0.352% 0.013% 61% 65%
7 4726-004 0.640% 0.519% 0.012% 50% 60%
8 (cure) 4726-004 0.640% 0.519% 0.012% 49% 60%
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Figure 3. Copper recovery curves from the ongoing metallurgical column testing. The graphs highlight
copper extraction rates versus time under irrigation with sulfuric acid.
Following completion of the 90 -day irrigation cycle, the columns will be disassembled, and the residual
material will be assayed. The breakdown process is estimated to take approximately 30 -days. Results of
the final metallurgical recovery data will be announced once completed.
Quality Assurance and Quality Control
Drilling was completed using HQ size diamond drill core and core was logged by geologic consultants
engaged by the Company. Drill holes were logged and marked for sampling prior to being sawn in half
using a diamond blade saw, with one half of the sawn co re being placed in a cloth sample bag, with a
unique sample tag, while the second half was returned to the wooden core box for storage on site. Sample
assays are being performed by Skyline Assayers & Laboratories, which is an accredited laboratory (ISO
9001). Core samples are analyzed for total copper, acid soluble copper, cyanide soluble cooper, as well as
well as a multi element ICP Analysis.
The analytical work has been and is subject to a QA/QC program that includes certified reference standards
from OREAS North America. These standards are of similar composition to the rock types at San Javier.
Several different standards are included in each batch of samples submitted to the lab. These controls are
tracked to ensure the integrity of the assay data. Results are all within acceptable limits.
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Table 3. Drill Hole Information
Hole Easting Northing Elevation Depth Azimuth Dip Status
SJ21-01 623292 3160798 942 100 0 -90 Met Hole
SJ21-02 623138 3160631 967 100 0 -90 Met Hole
SJ21-03 623140 3160622 967 90 180 -45 Met Hole
SJ21-04 623341 3160588 1007 61 0 -90 Met / HQ Hole (HQ announced)
SJ21-04 623341 3160602 1007 201 0 -90 Previously Announced
SJ21-05 623258 3160598 1006 260 90 -72 Announced in This Release
SJ21-06 623258 3160602 1019 250 45 -50 Announced in This Release
SJ21-07 623432 3160791 922 200 90 -70 Announced in This Release
SJ21-08 623554 3160599 829 285 270 -50 Announced in This Release
SJ21-09 623462 3160563 893 150 270 -55 Announced in This Release
SJ21-10 623229 3160482 960 231 45 -50 Announced in This Release
SJ21-11 623440 3160641 903 176 0 -90 Announced in This Release
SJ21-12 623016 3160344 869 180 90 -51 Announced in This Release
SJ21-13 623332 3160401 896 120 0 -90 Announced in This Release
SJ21-14 623331 3160401 896 140 270 -55 Assays Pending
SJ21-15 623129 3160534 924 155 90 -59 Announced in This Release
SJ21-16 623529 3160750 815 53 270 -51 Announced in This Release
SJ21-17 623529 3160750 815 55 0 -55 Announced in This Release
SJ21-18 623435 3160408 875 60 0 -90 Announced in This Release
SJ21-19 623435 3160408 875 80 245 -55 Announced in This Release
SJ21-20 623533 3160852 768 170 270 -45 Announced in This Release
SJ21-21 623533 3160852 768 30 0 -45 Announced in This Release
SJ21-22 623655 3160882 709 30 225 -50 Announced in This Release
SJ21-23 623584 3160911 768 30 260 -55 Assays Pending
SJ21-24 623406 3161005 853 120 90 -64 Assays Pending
SJ21-25 623602 3161009 791 195 90 -55 Assays Pending
SJ21-26 623195 3160750 962 120 270 -80 Assays Pending
SJ21-27 623200 3160549 968 63 0 -90 Assays Pending
SJ21-28 623257 3160557 1006 185 0 -90 Assays Pending
SJ21-29 623302 3160553 992 140 0 -90 Assays Pending
SJ21-30 623352 3160556 996 185 0 -90 Assays Pending
SJ21-31 623311 3160435 921 147 0 -50 Assays Pending
SJ21-32 623138 3160586 947 167 0 -90 Assays Pending
SJ21-33 623025 3160500 852 165 270 -60 Assays Pending
SJ21-34 623017 3160600 850 130 270 -60 Assays Pending
SJ21-35 623010 3160650 850 84 270 -60 Assays Pending
SJ21-36 623200 3160000 788 95 0 -90 Assays Pending
Scientific and technical information in this news release has been reviewed and approved by Lewis Teal,
Senior Consultant to the Company and a ‘Qualified Person’ as defined under Canadian National Instrument
43-101. The discussion related to the metallurgical program has been reviewed and approved by Steve
Dixon, a Consultant to the Company and a ‘Qualified Person’ as defined under Canadian Nati onal
Instrument 43-101.
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Barksdale Resources Corp. is a base metal exploration company headquartered in Vancouver, B.C. that is
focused on the acquisition, exploration and advancement of highly prospective base metal projects in North
America. Barksdale is currently advancing the Sunnyside copper -zinc-lead-silver and San Antonio copper
projects, both of which are in the Patagonia mining district of southern Arizona, as well as the San Javier
copper-gold project in central Sonora, Mexico.
ON BEHALF OF BARKSDALE RESOURCES CORP
Rick Trotman
President, CEO and Director
Terri Anne Welyki
Vice President of Communications
778-238-2333
For more information please phone 778-238-2333, email [email protected] or visit
www.BarksdaleResources.com.
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the
policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news
release.
CAUTIONARY STATEMENT REGARDING FORWARD -LOOKING INFORMATION: This news release includes
“forward-looking information ” under applicable securities legislation including, but not limited to, the
ability of Barksdale to verify or replace historic estimates at San Javier as current resources, the proposed
technical and drill program at San Javier and the timing thereof, the prospective deposits, targets and
mineralization at San Javier and the anticipated receipt and timing of necessary governmental or third
party approvals and permits. Such forward-looking information reflects management’s current beliefs and
is based on a number of estimates and assumptions made by and information currently available to the
Company that, while considered reasonable, are subject to known and unknown risks, uncertainties, and
other factors which may cause the actual results and future events to differ materially from those
expressed or implied by such forward -looking information. Readers are cautioned that such forward -
looking information is neither a promise nor guarantee, and is subject to known and unknown risks and
uncertainties including, but not limited to, delays in obtaining governmental or third party approvals and
permits, actual results of exploration activities, unanticipated geologic formations , structures and
characteristics, environmental risks, future prices of base and other metals, operating risks, accidents,
labor issues, and other risks in the mining industry as well as general business, economic, competitive,
political and social uncerta inties, uncertain and volatile equity and capital markets and lack of available
capital. There are no assurances that the Company will obtain the necessary permits for and successfully
complete the proposed technical and drill program at San Javier as curr ently contemplated or at all. In
addition, there is uncertainty about the spread of COVID -19 and variants of concern and the impact they
will have on the Company ’s operations, supply chains, ability to access mineral properties, conduct due
diligence or pr ocure equipment, contractors and other personnel on a timely basis or at all and economic
activity in general. All forward -looking information contained in this news release is qualified by these
cautionary statements and those in our continuous disclosure filings available on SEDAR at
www.sedar.com. Accordingly, readers should not place undue reliance on forward -looking information.
The Company disclaims any intention or obligation to update or revise any forward -looking information,
whether as a result of new information, future events or otherwise, except as required by law.