Alphamin Resources Corp. (AFM:TSXV, APH:JSE AltX, “Alphamin” or the
“Company”), a producer of 4% of the world’s mined tin from its
high-grade operation in the Democratic Republic of Congo, is
pleased to provide additional assay results on its Mpama South
Exploration Drilling programme.
HIGHLIGHTS
-
Further high-grade intercepts1
from the Main Zone:-
- BGH033:
6.4 metres @ 7.32% Sn from 259.0 metres
- BGH035:
13.0 metres @ 2.96% Sn (incl. 5.3 metres @ 6.4%
Sn) from 152.0 metres
- BGH039:
21.0 metres @ 2.20% Sn (incl. 8.0 metres @ 4.26%
Sn) from 145.0 metres
- BGH045:
6.9 metres @ 3.24% Sn from 176.7 metres
-
Further high-grade intercepts1
from the newly discovered footwall zone:-
- BGH037:
3.0 metres @ 3.81% Sn from 154.0 metres
- BGH038:
2.9 metres @ 5.22% Sn from 151.7 metres
- BGH045:
1.1 metres @ 31.55% Sn from 120.7 metres
-
10,000m of the planned 16,800m Diamond Drill programme
completed (46 of the 70-hole programme) with independent
laboratory assays received for 29 holes to date;
-
Phase 3 drilling (~6,800m and 24 holes) commenced
to test downdip and strike extension of the interpreted high-grade
shoot
Chief Executive Officer, Maritz Smith
comments:
“The Mpama South Prospect continues to deliver
exceptional tin intercepts. Based on the first two batches of drill
results, the continued presence and orientation of high-grade
samples point to the potential for yet another high-grade deposit,
some 750m south of our current operation. With the recent
commencement of the deeper drilling phase at Mpama South, we
believe we are heading into even more exciting times”.
Mpama South Exploration Drilling
Update
Mpama South is a high-grade tin discovery,
located 750m south of Alphamin’s operating Bisie mine. A small
diamond drilling programme of sixteen (16) drillholes completed in
2016 recorded notable cassiterite intercepts in similar alteration
styles to the Mpama North mine. Alphamin re-commenced its Mpama
South diamond drilling exploration activities in December 2020 and
completed the first two phases of drilling by the end of May for a
total of 10,000 metres and forty-six (46) drillholes. Phase 3 for
6,800 metres and twenty-four (24) holes has already commenced for
expected completion in August 2021. All three phases for ~16,800
metres are intended to form the basis of a Mineral Resource
estimation exercise, the results of which are expected to be
announced by the end of 2021. Infill drilling and further step-out
drilling will continue from August for the remainder of 2021.
Selected significant intercepts1 from the new
batch of assays received in the Main Zone from the Mpama South
drilling program are listed below as apparent widths. Sample
preparation is detailed in Appendix 1 and all intercepts >0.5%
Sn are detailed in Appendix 2:-
- BGH033: 6.4
metres @ 7.32% Sn from 259.0 metres
- BGH035: 13.0
metres @ 2.96% Sn (incl. 5.3 metres @ 6.4% Sn) from 152.0
metres
- BGH039: 21.0
metres @ 2.20% Sn (incl. 8.0 metres @ 4.26% Sn) from 145.0
metres
- BGH045: 6.9
metres @ 3.24% Sn from 176.7 metres
While significant new intercepts in the newly
discovered footwall zone are as follows:-
- BGH037: 3.0
metres @ 3.81% Sn from 154.0 metres
- BGH038: 2.9
metres @ 5.22% Sn from 151.7 metres
- BGH045: 1.1
metres @ 31.55% Sn from 120.7 metres
The above intercepts together with the
previously announced batch of significant intercepts repeated
below1, point to a potential high-grade deposit at Mpama South:
Main Zone:
- BGH030: 10.6
metres @ 4.85% Sn from 141.9 metres
- BGH032: 20.0
metres @ 2.07% Sn from 185.0 metres
- BGH025: 14.6
metres @ 2.70% Sn from 220.10 metres
Footwall Zone:
- BGH034 3.2
metres @ 11.99% Sn from 174.8 metres
- BGH022: 5.5
metres @ 3.99% Sn from 75.0 metres
- BGH030: 1.4 metres @ 7.24% Sn from
110.0 metres
_______________________
1 All intercepts are reported as apparent widths and are not
true widths
Although only shallowly drilled to date,
tell-tale signs already lead management to believe that the
potential for a high grade shoot exists at Mpama South (Figure 1),
possibly similar to that at the adjacent producing Mpama North
mine.
A Media Snippet accompanying this announcement
is available by clicking on the image or link below:
Figure 1: Mpama South Long section and
Interpreted High-grade Shoot
Source: Alphamin 2021
Qualified Person
Mr Jeremy Witley, Pr. Sci. Nat., B.Sc. (Hons.) Mining Geology,
M.Sc. (Eng.), is a qualified person (QP) as defined in National
Instrument 43-101 and has reviewed and approved the scientific and
technical information contained in this news release. He is a
Principal Mineral Resource Consultant of The MSA Group (Pty.) Ltd.,
an independent technical consultant to the Company.
FOR MORE INFORMATION, PLEASE CONTACT:
Maritz
Smith CEO Alphamin
Resources
Corp. Tel:
+230 269 4166E-mail: msmith@alphaminresources.com
CAUTION REGARDING FORWARD LOOKING
STATEMENTS
Information in this news release that is not a
statement of historical fact constitutes forward-looking
information. Forward-looking statements contained herein include,
without limitation, statements relating to anticipated exploration
activities and outcomes. Forward-looking statements are based on
assumptions management believes to be reasonable at the time such
statements are made. There can be no assurance that such statements
will prove to be accurate, as actual results and future events
could differ materially from those anticipated in such statements.
Accordingly, readers should not place undue reliance on
forward-looking statements. Although Alphamin has attempted to
identify important factors that could cause actual results to
differ materially from those contained in forward-looking
statements, there may be other factors that cause results not to be
as anticipated, estimated or intended. Factors that may cause
actual results to differ materially from expected results described
in forward-looking statements include, but are not limited to:
uncertainties with respect to social, community and environmental
impacts, uninterrupted access to required infrastructure, adverse
political events, impacts of the global Covid-19 pandemic on mining
as well as those risk factors set out in the Company’s Management
Discussion and Analysis and other disclosure documents available
under the Company’s profile at www.sedar.com. Forward-looking
statements contained herein are made as of the date of this news
release and Alphamin disclaims any obligation to update any
forward-looking statements, whether as a result of new information,
future events or results or otherwise, except as required by
applicable securities laws.
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.
Appendix 1: SAMPLE PREPARATION, ANALYSES
AND QUALITY CONTROL AND QUALITY ASSURANCE (QAQC)
After receipt of diamond drillcore from the
drillers at the drill rig in marked core trays, core was
transported to the Company’s core shed by the site geologist for
logging and sampling. After sample mark up, lithological and
geotechnical logging and photography, the core was split
longitudinally in half using a water-cooled rotating diamond blade
core saw. The cut core was replaced into the core tray with the
half to be sampled facing upward. Based on previous experience at
Bisie with high density variability and at the qualified person’s
instruction (Mr J. Witley of MSA Group), specific gravity (SG) was
performed exclusively on the half core that was to be sampled. The
Archimedes method of weight in air vs weight in water was used on
the whole length of the half core that was to be sampled and then
replaced in the core trays.
Air dried samples were placed in pre-numbered
sample bags together with pre-printed numbered sample tickets,
which were cross-checked afterwards to prevent sample swaps. Sample
bags were sealed using a plastic cable tie and then placed into
poly-weave sacks which were in turn sealed with plastic cable ties.
Each poly-weave sack was marked with a number and the sample
numbers contained within, ready for delivery to the on-site
Alphamin-Bisie laboratory for sample preparation.
At the laboratory, samples were first checked
off against the submission list supplied and then weighed and oven
dried for 2 hours at 105 degrees Celsius. The dried samples were
crushed by jaw crusher to 75% passing 2mm, from which a 250g riffle
split was taken. This 250g split was pulverised in ring mills to
90% passing 75μm from which a sample for analysis was taken.
Samples were homogenised using a corner-to-corner methodology and
two samples were taken from each pulp, one of 10g for on-site
laboratory assaying and another 150g sample for export and
independent accredited 3rd party laboratory assaying.
For the initial on-site laboratory assay, 10
grams of pulverised sample is mixed with 2 grams of binder before
press pellet preparation at 20t/psi for 1 minute. Press pellets are
analysed in a desktop Spectro Xepos XRF analyser, twelve at a time,
for Sn, Fe, Zn, Cu, Ag, Pb and As along with a standard, duplicate
and blank. The analytical method conducted on the pressed pellet
has an expected 10% precision and an upper detection limit of
70,000ppm and lower detection limit of 500ppm. Over-limit samples
are titrated by wet chemistry with an upper limit validation of 70%
Sn. The on-site laboratory assays are merely an exploration tool
and were not used for reporting the exploration results, which are
based solely on the ALS assays.
The 150g sample is packaged in sealed paper
sample envelopes and packed in a box for export in batches of
approximately 500 samples and prepared for export authorisation
with national authorities. Once authorisation is received, samples
are air-couriered to ALS Group in Johannesburg South Africa, a
subsidiary of ALS Limited, which is an independent commercial
analytical facility. ALS operations are ISO 9001:2015 certificated
and the Johannesburg office is ISO 17025 accredited for Chemical
Analysis by SANAS (South African National Accreditation System,
facility number T087), although the accreditation does not extend
to the methods used for tin.
Received samples at ALS Johannesburg are checked
off against the list of samples supplied and logged in the system.
Quality Control is performed in the way of sieve tests every 50
samples and should a sample fail, the preceding 50 samples are
ground in a ring mill pulverizer using a carbon steel ring set to
85 % passing 75μm. Samples are analysed for tin using method code
ME-XRF05 conducted on a pressed pellet with 10% precision and an
upper limit of 5,000ppm. The over-limit tin samples are analysed as
fused disks according to method ME-XRF15c, which makes use of
pre-oxidation and decomposition by fusion with 12:22 lithium borate
flux containing 20% Sodium Nitrate as an oxidizing agent, with an
upper detection limit of 79% Sn.
Method code ME-ICP61 (HF, HNO3, HClO4 and HCl
leach with ICP-AES finish) is used for 33 elements including base
metals. ME-OG62, a four-acid digestion, is used on ore grade
samples for lead, zinc, copper and silver. Both methods are
accredited by SANAS.
The program is designed to include a
comprehensive analytical quality assurance and control routine
comprising the systematic use of Company inserted standards, blanks
and field duplicate samples, internal laboratory standards and
analysis at an accredited laboratory. The pulps were accompanied by
blind QAQC samples inserted into the sample stream by the
Alphamin-Bisie geologists. These comprised blank samples, certified
reference materials and pulp duplicates each at an insertion rate
of approximately 5%.
The QAQC results demonstrate that the assay
results are both accurate and precise with an insignificant amount
of contamination (in the order of 60pmm Sn on average) and
negligible sampling errors. Further verification work is in
progress by additional check assays by SGS South Africa (Pty)
Ltd.
The Company’s Qualified Person (QP) for the
drill programme, has verified the data disclosed, including drill
core, sampling and analytical data in the field and lab.
Appendix 2: COMPLETE SIGNIFICANT
INTERCEPTS (0.5% Sn lower threshold)
Hole |
EastingGPS |
Northing GPS |
RL_m |
Azi (°) |
Dip (°) |
From |
To |
Sn % |
Width(m)1 |
Sample Position |
mid_x |
mid_y |
mid_z |
BGH017 |
582535 |
9884822 |
732 |
55 |
-10 |
237.80 |
238.80 |
4.99 |
1.00 |
582,731.5 |
9,884,965.7 |
678.6 |
BGH018 |
582535 |
9884822 |
732 |
93 |
0 |
141.20 |
144.35 |
2.07 |
3.15 |
582,690.7 |
9,884,820.4 |
727.9 |
145.75 |
151.00 |
0.76 |
5.25 |
582,696.3 |
9,884,820.2 |
727.9 |
BGH019 |
582535 |
9884822 |
732 |
85 |
-5 |
147.00 |
152.00 |
2.05 |
5.00 |
582,696.1 |
9,884,836.5 |
715.8 |
BGH020 |
582535 |
9884822 |
732 |
84 |
-15 |
160.60 |
164.40 |
1.45 |
3.80 |
582,703.6 |
9,884,845.7 |
689.3 |
169.30 |
171.10 |
5.42 |
1.80 |
582,711.1 |
9,884,846.4 |
687.7 |
BGH021 |
582535 |
9884822 |
732 |
93 |
-15 |
109.15 |
110.25 |
3.20 |
1.10 |
582,653.5 |
9,884,821.1 |
700.1 |
164.60 |
167.32 |
3.29 |
2.72 |
582,708.3 |
9,884,818.3 |
687.6 |
BGH022 |
582554 |
9884785 |
732 |
90 |
0 |
75.00 |
80.53 |
3.99 |
5.53 |
582,632.6 |
9,884,784.0 |
729.3 |
109.00 |
110.00 |
1.35 |
1.00 |
582,664.4 |
9,884,784.8 |
729.9 |
119.22 |
122.10 |
2.22 |
2.88 |
582,675.5 |
9,884,784.7 |
730.1 |
BGH023 |
582535 |
9884822 |
732 |
75 |
-15 |
171.43 |
174.32 |
1.72 |
2.89 |
582,710.4 |
9,884,859.3 |
683.7 |
175.85 |
178.00 |
1.09 |
2.15 |
582,714.3 |
9,884,860.1 |
683.0 |
BGH024 |
582554 |
9884785 |
732 |
103 |
-5 |
127.70 |
129.60 |
0.54 |
1.90 |
582,679.2 |
9,884,749.2 |
717.2 |
137.95 |
142.00 |
1.13 |
4.05 |
582,690.0 |
9,884,745.8 |
716.2 |
BGH025 |
582535 |
9884822 |
732 |
55 |
-20 |
212.25 |
213.40 |
0.60 |
1.15 |
582,724.4 |
9,884,918.5 |
662.3 |
218.00 |
221.45 |
2.29 |
3.45 |
582,730.5 |
9,884,921.2 |
660.7 |
222.70 |
223.70 |
13.05 |
1.00 |
582,733.6 |
9,884,922.5 |
659.9 |
228.00 |
234.80 |
2.73 |
6.80 |
582,741.0 |
9,884,925.7 |
658.0 |
BGH026 |
582554 |
9884785 |
732 |
113 |
-10 |
103.71 |
108.00 |
3.30 |
4.29 |
582,649.0 |
9,884,734.9 |
713.7 |
134.80 |
136.45 |
3.72 |
1.65 |
582,675.5 |
9,884,722.4 |
708.6 |
161.00 |
162.50 |
5.61 |
1.50 |
582,698.7 |
9,884,711.1 |
704.5 |
BGH030 |
582554 |
9884785 |
732 |
115 |
-20 |
110.00 |
111.40 |
7.24 |
1.40 |
582,654.5 |
9,884,752.5 |
692.2 |
141.90 |
152.50 |
4.85 |
10.60 |
582,686.1 |
9,884,744.8 |
680.0 |
158.00 |
161.20 |
3.61 |
3.20 |
582,699.0 |
9,884,741.6 |
675.3 |
174.45 |
175.80 |
11.03 |
1.35 |
582,713.3 |
9,884,737.8 |
670.5 |
BGH032 |
582554 |
9884785 |
732 |
125 |
-20 |
177.00 |
178.72 |
1.70 |
1.72 |
582,691.5 |
9,884,683.6 |
671.3 |
182.00 |
188.25 |
3.00 |
6.25 |
582,697.1 |
9,884,679.4 |
669.1 |
190.25 |
193.00 |
0.95 |
2.75 |
582,702.0 |
9,884,675.7 |
667.2 |
194.40 |
202.00 |
1.37 |
7.60 |
582,707.1 |
9,884,671.9 |
665.3 |
203.50 |
208.00 |
2.67 |
4.50 |
582,712.8 |
9,884,667.5 |
663.2 |
BGH034 |
582554 |
9884785 |
732 |
115 |
-25 |
174.80 |
178.00 |
11.99 |
3.20 |
582,688.9 |
9,884,696.4 |
653.3 |
195.70 |
200.00 |
1.21 |
4.30 |
582,705.5 |
9,884,685.9 |
644.8 |
202.37 |
206.65 |
1.86 |
4.28 |
582,710.8 |
9,884,682.6 |
642.3 |
208.00 |
213.30 |
1.40 |
5.30 |
582,715.6 |
9,884,679.6 |
640.1 |
216.25 |
221.30 |
1.42 |
5.05 |
582,722.0 |
9,884,675.5 |
637.3 |
225.65 |
231.00 |
0.70 |
5.35 |
582,729.5 |
9,884,670.6 |
634.0 |
BGH027 |
582544 |
9884822 |
732 |
68 |
-27 |
212.35 |
214.00 |
0.58 |
1.65 |
582,728.6 |
9,884,879.2 |
634.0 |
226.00 |
229.30 |
1.32 |
3.30 |
582,741.4 |
9,884,882.8 |
628.4 |
235.45 |
236.58 |
1.54 |
1.13 |
582,748.9 |
9,884,884.9 |
625.2 |
BGH028 |
582554 |
9884785 |
732 |
90 |
-10 |
125.00 |
126.00 |
1.72 |
1.00 |
582,676.2 |
9,884,771.5 |
700.9 |
136.10 |
137.18 |
1.85 |
1.08 |
582,687.0 |
9,884,770.3 |
698.4 |
140.28 |
142.00 |
1.03 |
1.72 |
582,691.4 |
9,884,769.8 |
697.4 |
147.46 |
151.25 |
2.88 |
3.79 |
582,699.3 |
9,884,768.9 |
695.5 |
BGH029 |
582544 |
9884822 |
732 |
93 |
-25 |
126.00 |
128.35 |
4.66 |
2.35 |
582,663.2 |
9,884,826.4 |
678.5 |
178.90 |
184.05 |
1.25 |
5.15 |
582,713.4 |
9,884,826.9 |
657.7 |
193.70 |
196.05 |
3.95 |
2.35 |
582,725.9 |
9,884,826.9 |
653.0 |
BGH031 |
582544 |
9884822 |
732 |
75 |
-25 |
208.00 |
211.53 |
0.99 |
3.53 |
582,728.6 |
9,884,876.2 |
639.9 |
219.40 |
222.38 |
1.16 |
2.98 |
582,738.6 |
9,884,878.8 |
636.0 |
BGH033 |
582544 |
9884822 |
732 |
60 |
-27 |
259.00 |
265.46 |
7.32 |
6.46 |
582,756.1 |
9,884,928.5 |
612.8 |
268.53 |
270.52 |
1.02 |
1.99 |
582,762.2 |
9,884,931.3 |
610.0 |
BGH035 |
582554 |
9884785 |
732 |
90 |
-25 |
152.00 |
165.00 |
2.96 |
13.00 |
582,686.4 |
9,884,816.3 |
665.0 |
171.00 |
173.60 |
1.47 |
2.60 |
582,703.0 |
9,884,814.9 |
657.4 |
176.60 |
180.08 |
2.40 |
3.48 |
582,708.5 |
9,884,814.4 |
654.9 |
BGH036 |
582544 |
9884822 |
732 |
65 |
0 |
147.45 |
151.35 |
2.31 |
3.90 |
582,686.9 |
9,884,877.7 |
724.8 |
156.63 |
160.65 |
0.93 |
4.02 |
582,695.6 |
9,884,880.8 |
724.7 |
BGH037 |
582554 |
9884785 |
732 |
105 |
-30 |
154.00 |
157.00 |
3.81 |
3.00 |
582,679.6 |
9,884,741.2 |
647.5 |
194.60 |
197.55 |
1.54 |
2.95 |
582,712.1 |
9,884,730.0 |
626.0 |
207.95 |
211.18 |
1.29 |
3.23 |
582,723.1 |
9,884,725.8 |
619.3 |
216.25 |
220.15 |
2.79 |
3.90 |
582,730.1 |
9,884,723.1 |
615.1 |
222.40 |
226.70 |
1.77 |
4.30 |
582,735.3 |
9,884,721.0 |
612.1 |
BGH038 |
582544 |
9884822 |
732 |
75 |
-30 |
151.70 |
154.60 |
5.22 |
2.90 |
582,676.9 |
9,884,851.3 |
654.3 |
218.30 |
223.65 |
3.38 |
5.35 |
582,735.3 |
9,884,861.2 |
621.4 |
226.70 |
231.50 |
1.95 |
4.80 |
582,742.5 |
9,884,862.1 |
617.6 |
BGH039 |
582554 |
9884785 |
732 |
100 |
-22 |
112.08 |
113.00 |
2.12 |
0.92 |
582665.1 |
9884755.1 |
687.6 |
116.30 |
120.95 |
3.33 |
4.65 |
582661.3 |
9884753.3 |
686.1 |
145.00 |
166.00 |
2.20 |
21.00 |
582696.1 |
9884743.5 |
674.2 |
174.50 |
176.00 |
0.95 |
1.50 |
582,712.9 |
9,884,738.5 |
668.9 |
BGH040 |
582544 |
9884822 |
732 |
60 |
-30 |
232.00 |
233.00 |
0.95 |
1.00 |
582,724.8 |
9,884,921.5 |
618.2 |
273.70 |
277.05 |
3.79 |
3.35 |
582,760.5 |
9,884,936.7 |
600.0 |
BGH041 |
582500 |
9884847 |
732 |
55 |
-25 |
340.00 |
344.50 |
3.03 |
4.50 |
582,807.3 |
9,885,002.2 |
599.5 |
BGH042 |
582544 |
9884822 |
732 |
60 |
-35 |
277.35 |
280.00 |
1.93 |
2.65 |
582,751.1 |
9,884,922.4 |
569.4 |
308.50 |
312.00 |
0.62 |
3.50 |
582,776.0 |
9,884,932.1 |
552.6 |
313.00 |
315.55 |
1.52 |
2.55 |
582,779.2 |
9,884,933.3 |
550.5 |
BGH043 |
582544 |
9884822 |
732 |
100 |
-10 |
102.50 |
104.15 |
2.69 |
1.65 |
582,643.7 |
9,884,807.9 |
709.0 |
123.00 |
124.00 |
1.06 |
1.00 |
582,663.2 |
9,884,804.8 |
704.8 |
163.64 |
167.00 |
2.82 |
3.36 |
582,703.6 |
9,884,797.5 |
696.7 |
BGH044 |
582500 |
9884847 |
710 |
70 |
-35 |
330.00 |
334.13 |
1.31 |
4.13 |
582,764.0 |
9,884,940.6 |
533.4 |
BGH045 |
582544 |
9884822 |
732 |
100 |
-20 |
120.65 |
121.75 |
31.55 |
1.10 |
582,655.5 |
9,884,805.6 |
687.4 |
156.00 |
159.40 |
0.56 |
3.40 |
582,689.1 |
9,884,799.2 |
674.7 |
176.70 |
183.62 |
3.24 |
6.92 |
582,707.7 |
9,884,795.2 |
668.1 |
1. Apparent widths, not true thickness
Alphamin Resources (TSXV:AFM)
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