Alphamin Resources Corp. (AFM:TSXV, APH:JSE AltX, “Alphamin” or the
“Company”), a producer of 4% of the world’s mined tin1 from its
high-grade operation in the Democratic Republic of Congo, is
pleased to announce completion of the infill drilling campaign at
Mpama South and an updated Mineral Resource Estimate (MRE) for
Mpama South.
HIGHLIGHTS
-
Substantially improved the confidence of Mineral
Resources at Mpama South whilst extending the known
mineralisation boundary.
-
Increased
Indicated
Resources by
286% to
3.26Mt based on assays from 63
additional infill and extensional drillholes.
- Mpama
South Mineral Resources now stand at:
- 3.26Mt @ 2.46%
Sn for 80.2kt contained tin in the Indicated category; and
- 2.84Mt @ 2.42% Sn for 68.7kt
contained tin in the Inferred category.
-
Significant
additional resource
growth potential at
Mpama South as the deposit still
remains open down-dip.
-
Mpama South Mine construction
works progressing according to
plan – project completion expected to increase Alphamin’s
annual contained tin production from the current 12,000tpa to
~20,000tpa,
approximating
6.6% of
the world’s
mined
tin1.
Mpama South
Updated Mineral Resource
Estimate
In just 24 months, Alphamin has:
- delivered a
top-10 globally significant CRIRSCO compliant tin deposit by
contained tin1 at Mpama South;
- grown the
resources to ~2.2 times versus the Maiden Mineral Resources and
PEA2 numbers;
- increased
resource confidence across the deposit; and
- commenced mine
construction through own cashflows.
This brings forward an additional planned
~7,200tpa contained tin production, which will make Alphamin one of
the largest tin producers globally and delivers on the Company
strategy of organic growth and creating shareholder value.
The updated Mineral Resource for Mpama South
follows eight months after the previous update announced on 31 May
2022. The update is based on receipt of assays for another 63
infill and extensional drillholes completed subsequent to the
previous estimate which was based on 124 drillholes. The updated
Mineral Resource is presented in Figure 1 along with the direction
in which mineralisation is still open down dip and significant high
grade periphery drilling intercepts.
The updated MRE now includes results from 187
drillholes at Mpama South as well as 6 drillholes drilled in 2015
in the area between Mpama South and the Mpama North ore body. The
MRE was estimated using the Canadian Institute of Mining,
Metallurgy and Petroleum (CIM) Best Practice Guidelines (2019) and
is reported in accordance with the 2014 CIM Definition
Standards.
Figure 1:
Updated Mpama South
Mineral Resource 07 February 2023
with selected intercepts and direction in which
mineralisation is still open |
Source: Alphamin 2022 |
The Mineral Resource is classified into the
Indicated and Inferred categories and is reported at a base case
tin cut-off grade of 1.0%, which satisfies reasonable prospects for
economic extraction. Mpama South Indicated Resources increased by
~286% to 3.26Mt by converting Inferred Resources, while Inferred
Resources grew nominally by ~275kt (excluding those tonnes
converted to Indicated). The Mineral Resource Estimate, which is
effective as of 07 February 2023, is presented in Table 1
below:
Table 1:
Updated Mpama South
Mineral Resources effective date
07 February
2023
Classification |
Tonnes (millions) |
Sn % |
Sn Tonnes(thousands) |
Indicated3 |
3.26 |
2.46 |
80.2 |
Inferred4 |
2.84 |
2.42 |
68.7 |
Mineral Resources that are not Mineral Reserves
do not have a demonstrated economic viability and require advanced
studies and economic analysis to prove their viability for
extraction.
Extensional drilling down-dip and in the
shallower northern and southern portions of Mpama South can be
conducted at the Company’s election to carry on extending known
mineralisation at Mpama South, which is still open in multiple
directions. High grade drillholes around the peripheries where
mineralisation remains open are highlighted in Figure 1, showing
the remaining prospectivity for Resource expansion. However, for
2023, the focus will primarily be aimed at the Mpama South Mine
construction and commissioning efforts, while exploration drilling
will be curtailed, instead, focusing on further field work
campaigns to support future programs.
The MRE has been completed by Mr. J.C. Witley
(BSc Hons, MSc (Eng.)) who is a geologist with 34 years’ experience
in base and precious metals exploration and mining as well as
Mineral Resource evaluation and reporting. He is a Principal
Resource Consultant for The MSA Group (an independent consulting
company), is registered with the South African Council for Natural
Scientific Professions (SACNASP) and is a Fellow of the Geological
Society of South Africa (GSSA). Mr. Witley has the appropriate
relevant qualifications and experience to be considered a
“Qualified Person” for the style and type of mineralisation and
activity being undertaken as defined in National Instrument 43-101
Standards of Disclosure of Mineral Projects.
Bisie Ridge Regional Exploration
Update
Alphamin intensified exploration drilling on the
13km long Bisie Ridge from Q3 2022 to test highly anomalous soil,
geophysical and structural targets identified during 2021. 8,773
metres of the 10,000 metre Phase 1 diamond core programme have been
completed along the Ridge, with the remainder due for completion in
Q1 2023.
Although anomalous mineralisation has been
confirmed in drilling on the Ridge, it is not of the obvious coarse
visual cassiterite type frequently seen in drillcore from Mpama
North and South.
Only ~25% of assays have been returned from the
independent laboratory to date from the Ridge drilling. Assay
results when received will support a fuller investigation into the
regional setting, along with data from the on-going geophysical
downhole surveys, structural investigations and mapping, thereby
enabling a refocused exploration programme. Until then, the key
focus at site remains the construction and commissioning of the new
Mpama South Mine.
Qualified
Persons
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 the anticipated future
exploration and resource estimation activities and outcomes and the
timing thereof and expected increases in tin production from the
development of the Mpama South deposit and the cost and timing of
such development activities. 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:
uncertainty of future exploration and assay results and consistency
with past results and expectations; uncertainties related to the
technical and economic parameters applied in the Mpama South
Preliminary Economic Assessment regarding forecasted tin prices,
the tin grade mined and processing recoveries as well as operating
costs; uncertainties inherent in estimates of Mineral Resources,
global geopolitical and economic uncertainties, volatility of metal
prices, uncertainties with respect to social, community and
environmental impacts, uninterrupted access to required
infrastructure, adverse political events, impacts of the global
Covid-19 pandemic 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)
For sample preparation, analyses and quality
control and quality assurance, see the Company’s news release dated
07 March 2022 entitled “ALPHAMIN ANNOUNCES MAIDEN MINERAL RESOURCE
ESTIMATE AND POSITIVE PRELIMINARY ECONOMIC ASSESSMENT FOR MPAMA
SOUTH”
Appendix 2: SIGNIFICANT INTERCEPTS (0.5%
Sn lower threshold)
Hole |
Easting |
Northing |
RLm |
Azi (°) |
Dip (°) |
From |
To |
Sn % |
Width |
Sample Position |
GPS |
GPS |
(m)1 |
mid_x |
mid_y |
mid_z |
BGH017 |
582535 |
9884822 |
732 |
55 |
-10 |
237.8 |
238.8 |
4.99 |
1.00 |
582,732 |
9,884,966 |
678.6 |
BGH018 |
582535 |
9884822 |
732 |
93 |
0 |
141.2 |
144.4 |
2.07 |
3.15 |
582,691 |
9,884,820 |
727.9 |
145.8 |
151.0 |
0.76 |
5.25 |
582,696 |
9,884,820 |
727.9 |
BGH019 |
582535 |
9884822 |
732 |
85 |
-5 |
147.0 |
152.0 |
2.05 |
5.00 |
582,696 |
9,884,837 |
715.8 |
BGH020 |
582535 |
9884822 |
732 |
84 |
-15 |
160.6 |
164.4 |
1.45 |
3.80 |
582,704 |
9,884,846 |
689.3 |
169.3 |
171.1 |
5.42 |
1.80 |
582,711 |
9,884,846 |
687.7 |
BGH021 |
582535 |
9884822 |
732 |
93 |
-15 |
109.2 |
110.3 |
3.20 |
1.10 |
582,654 |
9,884,821 |
700.1 |
164.6 |
167.3 |
3.29 |
2.72 |
582,708 |
9,884,818 |
687.6 |
BGH022 |
582554 |
9884785 |
732 |
90 |
0 |
75.0 |
80.5 |
3.99 |
5.53 |
582,633 |
9,884,784 |
729.3 |
109.0 |
110.0 |
1.35 |
1.00 |
582,664 |
9,884,785 |
729.9 |
119.2 |
122.1 |
2.22 |
2.88 |
582,676 |
9,884,785 |
730.1 |
BGH023 |
582535 |
9884822 |
732 |
75 |
-15 |
171.4 |
174.3 |
1.72 |
2.89 |
582,710 |
9,884,859 |
683.7 |
175.9 |
178.0 |
1.09 |
2.15 |
582,714 |
9,884,860 |
683.0 |
BGH024 |
582554 |
9884785 |
732 |
103 |
-5 |
127.7 |
129.6 |
0.54 |
1.90 |
582,679 |
9,884,749 |
717.2 |
138.0 |
142.0 |
1.13 |
4.05 |
582,690 |
9,884,746 |
716.2 |
BGH025 |
582535 |
9884822 |
732 |
55 |
-20 |
212.3 |
213.4 |
0.60 |
1.15 |
582,724 |
9,884,919 |
662.3 |
218.0 |
221.5 |
2.29 |
3.45 |
582,731 |
9,884,921 |
660.7 |
222.7 |
223.7 |
13.05 |
1.00 |
582,734 |
9,884,923 |
659.9 |
228.0 |
234.8 |
2.73 |
6.80 |
582,741 |
9,884,926 |
658.0 |
BGH026 |
582554 |
9884785 |
732 |
113 |
-10 |
103.7 |
108.0 |
3.30 |
4.29 |
582,649 |
9,884,735 |
713.7 |
134.8 |
136.5 |
3.72 |
1.65 |
582,676 |
9,884,722 |
708.6 |
161.0 |
162.5 |
5.61 |
1.50 |
582,699 |
9,884,711 |
704.5 |
BGH030 |
582554 |
9884785 |
732 |
115 |
-20 |
110.0 |
111.4 |
7.24 |
1.40 |
582,655 |
9,884,753 |
692.2 |
141.9 |
152.5 |
4.85 |
10.60 |
582,686 |
9,884,745 |
680.0 |
158.0 |
161.2 |
3.61 |
3.20 |
582,699 |
9,884,742 |
675.3 |
174.5 |
175.8 |
11.03 |
1.35 |
582,713 |
9,884,738 |
670.5 |
BGH032 |
582554 |
9884785 |
732 |
125 |
-20 |
177.0 |
178.7 |
1.70 |
1.72 |
582,692 |
9,884,684 |
671.3 |
182.0 |
188.3 |
3.00 |
6.25 |
582,697 |
9,884,679 |
669.1 |
190.3 |
193.0 |
0.95 |
2.75 |
582,702 |
9,884,676 |
667.2 |
194.4 |
202.0 |
1.37 |
7.60 |
582,707 |
9,884,672 |
665.3 |
203.5 |
208.0 |
2.67 |
4.50 |
582,713 |
9,884,668 |
663.2 |
BGH034 |
582554 |
9884785 |
732 |
115 |
-25 |
174.8 |
178.0 |
11.99 |
3.20 |
582,689 |
9,884,696 |
653.3 |
195.7 |
200.0 |
1.21 |
4.30 |
582,706 |
9,884,686 |
644.8 |
202.4 |
206.7 |
1.86 |
4.28 |
582,711 |
9,884,683 |
642.3 |
208.0 |
213.3 |
1.40 |
5.30 |
582,716 |
9,884,680 |
640.1 |
216.3 |
221.3 |
1.42 |
5.05 |
582,722 |
9,884,676 |
637.3 |
225.7 |
231.0 |
0.70 |
5.35 |
582,730 |
9,884,671 |
634.0 |
BGH027 |
582544 |
9884822 |
732 |
68 |
-27 |
212.4 |
214.0 |
0.58 |
1.65 |
582,729 |
9,884,879 |
634.0 |
226.0 |
229.3 |
1.32 |
3.30 |
582,741 |
9,884,883 |
628.4 |
235.5 |
236.6 |
1.54 |
1.13 |
582,749 |
9,884,885 |
625.2 |
BGH028 |
582554 |
9884785 |
732 |
90 |
-10 |
125.0 |
126.0 |
1.72 |
1.00 |
582,676 |
9,884,772 |
700.9 |
136.1 |
137.2 |
1.85 |
1.08 |
582,687 |
9,884,770 |
698.4 |
140.3 |
142.0 |
1.03 |
1.72 |
582,691 |
9,884,770 |
697.4 |
147.5 |
151.3 |
2.88 |
3.79 |
582,699 |
9,884,769 |
695.5 |
BGH029 |
582544 |
9884822 |
732 |
93 |
-25 |
126.0 |
128.4 |
4.66 |
2.35 |
582,663 |
9,884,826 |
678.5 |
178.9 |
184.1 |
1.25 |
5.15 |
582,713 |
9,884,827 |
657.7 |
193.7 |
196.1 |
3.95 |
2.35 |
582,726 |
9,884,827 |
653.0 |
BGH031 |
582544 |
9884822 |
732 |
75 |
-25 |
208.0 |
211.5 |
0.99 |
3.53 |
582,729 |
9,884,876 |
639.9 |
219.4 |
222.4 |
1.16 |
2.98 |
582,739 |
9,884,879 |
636.0 |
BGH033 |
582544 |
9884822 |
732 |
60 |
-27 |
259.0 |
265.5 |
7.32 |
6.46 |
582,756 |
9,884,929 |
612.8 |
268.5 |
270.5 |
1.02 |
1.99 |
582,762 |
9,884,931 |
610.0 |
BGH035 |
582554 |
9884785 |
732 |
90 |
-25 |
152.0 |
165.0 |
2.96 |
13.00 |
582,686 |
9,884,816 |
665.0 |
171.0 |
173.6 |
1.47 |
2.60 |
582,703 |
9,884,815 |
657.4 |
176.6 |
180.1 |
2.40 |
3.48 |
582,709 |
9,884,814 |
654.9 |
BGH036 |
582544 |
9884822 |
732 |
65 |
0 |
147.5 |
151.4 |
2.31 |
3.90 |
582,687 |
9,884,878 |
724.8 |
156.6 |
160.7 |
0.93 |
4.02 |
582,696 |
9,884,881 |
724.7 |
BGH037 |
582554 |
9884785 |
732 |
105 |
-30 |
154.0 |
157.0 |
3.81 |
3.00 |
582,680 |
9,884,741 |
647.5 |
194.6 |
197.6 |
1.54 |
2.95 |
582,712 |
9,884,730 |
626.0 |
208.0 |
211.2 |
1.29 |
3.23 |
582,723 |
9,884,726 |
619.3 |
216.3 |
220.2 |
2.79 |
3.90 |
582,730 |
9,884,723 |
615.1 |
222.4 |
226.7 |
1.77 |
4.30 |
582,735 |
9,884,721 |
612.1 |
BGH038 |
582544 |
9884822 |
732 |
75 |
-30 |
151.7 |
154.6 |
5.22 |
2.90 |
582,677 |
9,884,851 |
654.3 |
218.3 |
223.7 |
3.38 |
5.35 |
582,735 |
9,884,861 |
621.4 |
226.7 |
231.5 |
1.95 |
4.80 |
582,743 |
9,884,862 |
617.6 |
BGH039 |
582554 |
9884785 |
732 |
100 |
-22 |
112.1 |
113.0 |
2.12 |
0.92 |
582,665 |
9,884,755 |
687.6 |
116.3 |
121.0 |
3.33 |
4.65 |
582,661 |
9,884,753 |
686.1 |
145.0 |
166.0 |
2.20 |
21.00 |
582,696 |
9,884,744 |
674.2 |
174.5 |
176.0 |
0.95 |
1.50 |
582,713 |
9,884,739 |
668.9 |
BGH040 |
582544 |
9884822 |
732 |
60 |
-30 |
232.0 |
233.0 |
0.95 |
1.00 |
582,725 |
9,884,922 |
618.2 |
273.7 |
277.1 |
3.79 |
3.35 |
582,761 |
9,884,937 |
600.0 |
BGH041 |
582500 |
9884847 |
732 |
55 |
-25 |
340.0 |
344.5 |
3.03 |
4.50 |
582,807 |
9,885,002 |
599.5 |
BGH042 |
582544 |
9884822 |
732 |
60 |
-35 |
277.4 |
280.0 |
1.93 |
2.65 |
582,751 |
9,884,922 |
569.4 |
308.5 |
312.0 |
0.62 |
3.50 |
582,776 |
9,884,932 |
552.6 |
313.0 |
315.6 |
1.52 |
2.55 |
582,779 |
9,884,933 |
550.5 |
BGH043 |
582544 |
9884822 |
732 |
100 |
-10 |
102.5 |
104.2 |
2.69 |
1.65 |
582,644 |
9,884,808 |
709.0 |
123.0 |
124.0 |
1.06 |
1.00 |
582,663 |
9,884,805 |
704.8 |
163.6 |
167.0 |
2.82 |
3.36 |
582,704 |
9,884,798 |
696.7 |
BGH044 |
582500 |
9884847 |
710 |
70 |
-35 |
330.0 |
334.1 |
1.31 |
4.13 |
582,764 |
9,884,941 |
533.4 |
BGH045 |
582544 |
9884822 |
732 |
100 |
-20 |
120.7 |
121.8 |
31.55 |
1.10 |
582,656 |
9,884,806 |
687.4 |
156.0 |
159.4 |
0.56 |
3.40 |
582,689 |
9,884,799 |
674.7 |
176.7 |
183.6 |
3.24 |
6.92 |
582,708 |
9,884,795 |
668.1 |
BGH046 |
582544 |
9884822 |
732 |
100 |
-30 |
195.2 |
206.0 |
2.85 |
10.82 |
582,712 |
9,884,795 |
630.5 |
212.5 |
215.2 |
1.90 |
2.65 |
582,723 |
9,884,793 |
623.7 |
218.0 |
220.6 |
7.16 |
2.60 |
582,728 |
9,884,792 |
620.8 |
225.0 |
226.0 |
4.36 |
1.00 |
582,733 |
9,884,791 |
617.7 |
BGH047 |
582565 |
9884535 |
718 |
60 |
0 |
121.6 |
124.6 |
0.91 |
2.99 |
582,653 |
9,884,879 |
739.2 |
147.1 |
148.1 |
1.28 |
1.00 |
582,675 |
9,884,889 |
741.1 |
BGH048 |
582567 |
9884509 |
727 |
90 |
0 |
140.8 |
143.1 |
0.90 |
2.30 |
582,708 |
9,884,496 |
727.7 |
146.5 |
148.0 |
0.74 |
1.47 |
582,713 |
9,884,495 |
728.0 |
BGH049 |
582565 |
9884535 |
718 |
65 |
-15 |
145.4 |
147.4 |
4.27 |
2.00 |
582,689 |
9,884,599 |
674.5 |
BGH050 |
582567 |
9884509 |
727 |
105 |
-5 |
160.0 |
161.4 |
1.06 |
1.38 |
582,722 |
9,884,469 |
711.7 |
BGH051 |
582565 |
9884535 |
718 |
40 |
0 |
134.8 |
137.0 |
2.23 |
2.20 |
582,662 |
9,884,630 |
712.3 |
151.0 |
156.3 |
1.20 |
5.30 |
582,675 |
9,884,642 |
711.4 |
164.2 |
169.5 |
3.95 |
5.27 |
582,685 |
9,884,651 |
710.8 |
171.3 |
172.6 |
4.08 |
1.30 |
582,688 |
9,884,655 |
710.6 |
BGH052 |
582567 |
9884509 |
727 |
120 |
0 |
205.9 |
207.1 |
1.86 |
1.20 |
582,732 |
9,884,385 |
722.9 |
BGH053 |
582565 |
9884535 |
718 |
40 |
-15 |
173.7 |
176.9 |
9.58 |
3.20 |
582,685 |
9,884,653 |
669.2 |
178.6 |
181.4 |
4.07 |
2.88 |
582,688 |
9,884,656 |
667.9 |
192.4 |
196.9 |
3.28 |
4.45 |
582,698 |
9,884,666 |
664.0 |
198.9 |
206.8 |
2.45 |
7.91 |
582,704 |
9,884,671 |
661.8 |
207.5 |
209.5 |
5.04 |
1.97 |
582,708 |
9,884,675 |
660.3 |
214.7 |
216.0 |
2.32 |
1.35 |
582,713 |
9,884,680 |
658.6 |
BGH054 |
No significant intercepts |
BGH055 |
582565 |
9884535 |
718 |
80 |
-15 |
145.0 |
146.0 |
0.62 |
1.00 |
582,705 |
9,884,549 |
682.7 |
BGH056 |
No significant intercepts |
BGH057 |
No significant intercepts |
BGH058 |
582565 |
9884510 |
727 |
95 |
-5 |
153.4 |
155.6 |
1.98 |
2.25 |
582,717 |
9,884,501 |
703.9 |
BGH059 |
582567 |
9884536 |
718 |
95 |
0 |
165.0 |
166.0 |
3.63 |
1.00 |
582,732 |
9,884,528 |
714.4 |
BGH060 |
No significant intercepts |
BGH061 |
582567 |
9884536 |
727 |
130 |
-10 |
157.6 |
159.2 |
1.22 |
1.62 |
582,719 |
9,884,525 |
677.7 |
BGH062 |
582567 |
9884537 |
718 |
95 |
-15 |
154.0 |
156.0 |
2.18 |
2.00 |
582,695 |
9,884,589 |
650.2 |
BGH063 |
582782 |
9884646 |
829 |
270 |
-70 |
186.3 |
194.4 |
0.82 |
8.12 |
582,719 |
9,884,661 |
650.5 |
197.4 |
202.5 |
1.12 |
5.03 |
582,715 |
9,884,661 |
641.8 |
205.0 |
209.1 |
0.83 |
4.05 |
582,712 |
9,884,661 |
635.4 |
211.1 |
218.9 |
2.06 |
7.77 |
582,709 |
9,884,661 |
628.3 |
220.4 |
222.6 |
0.86 |
2.15 |
582,706 |
9,884,661 |
622.5 |
231.0 |
233.0 |
0.87 |
2.00 |
582,701 |
9,884,661 |
613.0 |
BGH064 |
582888 |
9884976 |
839 |
270 |
-50 |
220.8 |
222.6 |
0.63 |
1.80 |
582,746 |
9,884,976 |
668.9 |
BGH065 |
582913 |
9885057 |
819 |
270 |
-60 |
271.0 |
276.0 |
2.93 |
4.95 |
582,769 |
9,885,057 |
586.1 |
291.6 |
292.6 |
1.70 |
1.00 |
582,759 |
9,885,057 |
570.9 |
BGH066 |
582888 |
9884976 |
839 |
270 |
-60 |
276.0 |
278.6 |
8.49 |
2.59 |
582,754 |
9,884,965 |
596.1 |
300.0 |
301.0 |
1.78 |
1.00 |
582,742 |
9,884,965 |
576.6 |
BGH067 |
582913 |
9885057 |
819 |
270 |
-67 |
295.8 |
300.5 |
3.21 |
4.72 |
582,789 |
9,885,065 |
548.1 |
303.0 |
304.6 |
1.56 |
1.62 |
582,786 |
9,885,065 |
543.1 |
337.0 |
338.0 |
0.55 |
1.00 |
582,769 |
9,885,068 |
514.3 |
BGH068 |
582913 |
9885057 |
819 |
270 |
-50 |
247.0 |
248.2 |
2.10 |
1.20 |
582,749 |
9,885,051 |
633.1 |
251.8 |
255.1 |
1.75 |
3.30 |
582,745 |
9,885,051 |
628.8 |
BGH069 |
582888 |
9884976 |
839 |
270 |
-70 |
321.8 |
324.7 |
3.84 |
2.93 |
582,779 |
9,884,962 |
534.7 |
BGH070 |
582913 |
9885057 |
819 |
270 |
-73 |
331.0 |
336.4 |
3.00 |
5.35 |
582,802 |
9,885,040 |
505.2 |
BGH071 |
No significant intercepts |
BGH072 |
582852 |
9884845 |
831 |
270 |
-67 |
274.6 |
279.7 |
2.70 |
5.10 |
582,749 |
9,884,847 |
574.0 |
290.4 |
294.8 |
3.61 |
4.40 |
582,742 |
9,884,847 |
560.0 |
BGH073 |
582731 |
9884691 |
838 |
280 |
-60 |
121.0 |
123.0 |
0.72 |
2.00 |
582,671 |
9,884,702 |
731.9 |
BGH074 |
582944 |
9885130 |
798 |
270 |
-67 |
278.9 |
283.9 |
2.85 |
5.03 |
582,810 |
9,885,137 |
551.2 |
285.5 |
289.1 |
1.60 |
3.61 |
582,807 |
9,885,138 |
546.3 |
294.5 |
297.3 |
7.14 |
2.79 |
582,802 |
9,885,139 |
539.1 |
299.7 |
303.3 |
0.53 |
3.69 |
582,799 |
9,885,139 |
534.5 |
BGH075 |
582731 |
9884691 |
838 |
270 |
-70 |
115.4 |
116.7 |
6.76 |
1.25 |
582,690 |
9,884,690 |
729.4 |
119.5 |
120.8 |
15.22 |
1.30 |
582,688 |
9,884,690 |
725.7 |
125.1 |
129.8 |
3.56 |
4.71 |
582,684 |
9,884,690 |
719.3 |
162.6 |
164.6 |
8.94 |
2.08 |
582,667 |
9,884,689 |
687.8 |
BGH076 |
582752 |
9884801 |
849 |
300 |
-40 |
108.0 |
109.0 |
0.84 |
1.00 |
582,682 |
9,884,844 |
779.6 |
118.8 |
119.5 |
3.71 |
0.65 |
582,675 |
9,884,848 |
772.7 |
128.2 |
131.0 |
2.82 |
2.85 |
582,668 |
9,884,852 |
765.8 |
136.7 |
137.0 |
0.97 |
0.30 |
582,663 |
9,884,855 |
761.0 |
BGH077 |
582944 |
9885130 |
798 |
270 |
-72 |
316.8 |
321.2 |
2.57 |
4.36 |
582,830 |
9,885,130 |
501.7 |
323.0 |
328.4 |
2.56 |
5.36 |
582,827 |
9,885,130 |
495.8 |
329.1 |
330.1 |
0.52 |
1.07 |
582,825 |
9,885,130 |
492.4 |
335.3 |
337.4 |
9.63 |
2.11 |
582,822 |
9,885,130 |
486.5 |
339.8 |
340.1 |
7.07 |
0.30 |
582,820 |
9,885,131 |
483.4 |
BGH078 |
582752 |
9884801 |
849 |
280 |
-40 |
102.0 |
106.0 |
1.88 |
4.00 |
582,674 |
9,884,816 |
782.6 |
108.0 |
109.0 |
0.62 |
1.00 |
582,671 |
9,884,817 |
779.7 |
115.0 |
117.2 |
0.80 |
2.15 |
582,665 |
9,884,818 |
774.8 |
BGH079 |
582852 |
9884845 |
831 |
270 |
-73 |
290.2 |
294.4 |
1.00 |
4.25 |
582,765 |
9,884,842 |
552.6 |
296.3 |
302.3 |
9.46 |
6.00 |
582,763 |
9,884,841 |
546.1 |
304.8 |
305.7 |
18.75 |
0.89 |
582,761 |
9,884,841 |
540.5 |
312.0 |
313.0 |
1.08 |
1.00 |
582,758 |
9,884,841 |
533.8 |
316.9 |
321.6 |
4.65 |
4.73 |
582,755 |
9,884,840 |
527.5 |
322.6 |
328.0 |
5.41 |
5.43 |
582,753 |
9,884,840 |
522.0 |
329.0 |
329.5 |
1.59 |
0.53 |
582,751 |
9,884,840 |
518.4 |
340.7 |
341.4 |
4.29 |
0.74 |
582,747 |
9,884,839 |
507.6 |
BGH080 |
582944 |
9885130 |
798 |
270 |
-75 |
339.9 |
343.6 |
1.05 |
3.70 |
582,853 |
9,885,141 |
469.2 |
345.0 |
346.6 |
4.11 |
1.55 |
582,851 |
9,885,141 |
465.5 |
360.7 |
361.0 |
11.95 |
0.30 |
582,846 |
9,885,143 |
451.5 |
BGH081a |
583022 |
9885299 |
776 |
270 |
-50 |
269.0 |
274.6 |
1.99 |
5.56 |
582,838 |
9,885,306 |
578.6 |
275.6 |
275.9 |
0.64 |
0.30 |
582,835 |
9,885,307 |
576.0 |
BGH082a |
583013 |
9885209 |
752 |
270 |
-50 |
263.8 |
266.3 |
3.43 |
2.47 |
582,836 |
9,885,222 |
556.0 |
268.4 |
269.2 |
3.32 |
0.80 |
582,833 |
9,885,223 |
553.5 |
277.0 |
277.3 |
15.65 |
0.30 |
582,827 |
9,885,224 |
547.9 |
BGH083 |
No significant intercepts |
BGH084 |
583023 |
9885299 |
776 |
270 |
-57 |
279.0 |
280.9 |
6.25 |
1.95 |
582,857 |
9,885,307 |
552.8 |
283.1 |
286.3 |
1.28 |
3.25 |
582,854 |
9,885,307 |
549.2 |
BGH085 |
583023 |
9885299 |
776 |
270 |
-65 |
294.7 |
298.4 |
0.83 |
3.70 |
582,890 |
9,885,304 |
512.9 |
BGH086 |
583013 |
9885208 |
752 |
270 |
-57 |
275.4 |
280.8 |
3.07 |
5.43 |
582,847 |
9,885,214 |
530.1 |
286.1 |
286.5 |
18.90 |
0.46 |
582,841 |
9,885,215 |
524.4 |
BGH087 |
583023 |
9885299 |
777 |
270 |
-75 |
263.8 |
264.3 |
0.59 |
0.53 |
582,946 |
9,885,305 |
525.0 |
BGH088 |
583012 |
9885208 |
752 |
270 |
-67 |
297.7 |
299.5 |
11.93 |
1.72 |
582,876 |
9,885,221 |
487.3 |
301.0 |
301.8 |
6.79 |
0.77 |
582,875 |
9,885,221 |
485.0 |
303.7 |
304.0 |
2.47 |
0.30 |
582,873 |
9,885,222 |
483.0 |
305.7 |
306.0 |
1.66 |
0.30 |
582,872 |
9,885,222 |
481.4 |
307.2 |
307.6 |
6.66 |
0.35 |
582,871 |
9,885,223 |
480.2 |
308.3 |
308.9 |
12.15 |
0.67 |
582,871 |
9,885,223 |
479.2 |
309.5 |
309.8 |
1.98 |
0.31 |
582,870 |
9,885,223 |
478.3 |
310.4 |
310.7 |
17.65 |
0.33 |
582,869 |
9,885,223 |
477.6 |
313.0 |
313.9 |
2.82 |
0.85 |
582,868 |
9,885,224 |
475.3 |
324.5 |
324.9 |
5.77 |
0.38 |
582,861 |
9,885,226 |
466.3 |
325.4 |
325.8 |
10.40 |
0.40 |
582,861 |
9,885,226 |
465.6 |
BGH089 |
582951 |
9885352 |
779 |
270 |
-50 |
198.0 |
199.0 |
4.58 |
1.00 |
582,822 |
9,885,357 |
628.9 |
202.7 |
203.5 |
12.25 |
0.80 |
582,819 |
9,885,357 |
625.5 |
205.1 |
205.5 |
7.96 |
0.44 |
582,818 |
9,885,357 |
623.7 |
217.5 |
218.5 |
31.90 |
1.00 |
582,809 |
9,885,358 |
614.1 |
BGH090 |
582951 |
9885423 |
769 |
270 |
-50 |
168.8 |
170.5 |
2.45 |
1.68 |
582,843 |
9,885,424 |
638.3 |
170.9 |
171.5 |
12.55 |
0.60 |
582,842 |
9,885,424 |
637.1 |
173.0 |
173.3 |
5.05 |
0.33 |
582,841 |
9,885,424 |
635.6 |
BGH091 |
582951 |
9885352 |
779 |
270 |
-65 |
222.1 |
223.5 |
4.02 |
1.40 |
582,850 |
9,885,358 |
581.3 |
BGH092 |
583021 |
9885430 |
752 |
270 |
-55 |
193.5 |
193.9 |
17.15 |
0.38 |
582,913 |
9,885,431 |
591.9 |
BGH093 |
583013 |
9885345 |
759 |
270 |
-70 |
224.3 |
224.8 |
4.06 |
0.50 |
582,932 |
9,885,341 |
549.9 |
225.8 |
226.7 |
1.81 |
0.92 |
582,931 |
9,885,341 |
548.3 |
227.7 |
228.3 |
2.75 |
0.60 |
582,930 |
9,885,341 |
546.7 |
BGH094 |
582990 |
9885055 |
810 |
270 |
-65 |
381.0 |
384.8 |
3.84 |
3.81 |
582,808 |
9,885,054 |
473.5 |
389.7 |
390.3 |
5.95 |
0.51 |
582,805 |
9,885,054 |
467.4 |
408.5 |
411.0 |
5.82 |
2.55 |
582,795 |
9,885,054 |
450.4 |
BGH095 |
582960 |
9884759 |
831 |
270 |
-60 |
391.6 |
399.6 |
4.56 |
8.03 |
582,773 |
9,884,762 |
482.7 |
400.0 |
401.0 |
1.85 |
1.00 |
582,770 |
9,884,761 |
478.6 |
405.0 |
412.0 |
4.47 |
6.97 |
582,766 |
9,884,761 |
471.9 |
414.0 |
414.3 |
1.36 |
0.30 |
582,763 |
9,884,761 |
467.2 |
BGH096 |
No significant intercepts |
BGH097 |
583013 |
9885345 |
759 |
270 |
-58 |
242.0 |
245.5 |
1.10 |
3.50 |
582,879 |
9,885,344 |
555.7 |
247.0 |
250.1 |
2.66 |
3.10 |
582,876 |
9,885,344 |
551.8 |
BGH099 |
No significant intercepts |
BGH100 |
583013 |
9885345 |
759 |
270 |
-79 |
226.8 |
231.3 |
2.09 |
4.51 |
582,965 |
9,885,347 |
535.2 |
233.1 |
235.0 |
1.58 |
1.92 |
582,964 |
9,885,347 |
530.3 |
BGH101 |
582990 |
9884975 |
813 |
270 |
-65 |
387.4 |
388.6 |
2.66 |
1.25 |
582,802 |
9,884,968 |
474.7 |
392.3 |
394.7 |
1.49 |
2.35 |
582,799 |
9,884,968 |
470.1 |
396.0 |
398.2 |
0.53 |
2.24 |
582,797 |
9,884,968 |
467.1 |
402.7 |
410.2 |
3.68 |
7.46 |
582,792 |
9,884,967 |
459.3 |
423.6 |
425.5 |
13.48 |
1.84 |
582,781 |
9,884,967 |
444.5 |
BGH102 |
No significant intercepts |
BGH103 |
582951 |
9885423 |
767 |
270 |
-64 |
161.9 |
167.0 |
1.71 |
5.17 |
582,882 |
9,885,425 |
618.5 |
167.8 |
172.1 |
1.11 |
4.29 |
582,880 |
9,885,425 |
613.4 |
173.4 |
177.0 |
1.71 |
3.65 |
582,877 |
9,885,425 |
608.7 |
BGH104 |
582985 |
9885054 |
811 |
270 |
-72 |
459.4 |
463.0 |
10.19 |
3.65 |
582,829 |
9,885,047 |
378.1 |
464.8 |
465.1 |
8.35 |
0.30 |
582,827 |
9,885,047 |
374.8 |
471.4 |
475.5 |
1.72 |
4.15 |
582,823 |
9,885,046 |
367.3 |
477.6 |
478.0 |
0.96 |
0.42 |
582,821 |
9,885,046 |
363.5 |
485.9 |
486.2 |
2.12 |
0.37 |
582,817 |
9,885,045 |
356.3 |
BGH105 |
582963 |
9884842 |
834 |
270 |
-70 |
406.5 |
407.0 |
0.98 |
0.48 |
582,807 |
9,884,837 |
458.9 |
410.2 |
413.0 |
1.20 |
2.80 |
582,805 |
9,884,836 |
454.6 |
416.9 |
421.4 |
1.66 |
4.45 |
582,802 |
9,884,836 |
447.9 |
421.8 |
425.0 |
4.33 |
3.21 |
582,800 |
9,884,836 |
444.1 |
427.7 |
431.3 |
0.80 |
3.55 |
582,797 |
9,884,836 |
438.7 |
434.6 |
437.4 |
1.11 |
2.77 |
582,794 |
9,884,835 |
433.0 |
442.3 |
442.6 |
1.98 |
0.30 |
582,791 |
9,884,835 |
427.3 |
446.0 |
446.3 |
1.24 |
0.30 |
582,789 |
9,884,834 |
424.1 |
453.7 |
454.0 |
0.62 |
0.30 |
582,785 |
9,884,834 |
417.4 |
457.8 |
459.9 |
5.03 |
2.17 |
582,783 |
9,884,833 |
413.0 |
461.7 |
462.6 |
0.91 |
0.93 |
582,781 |
9,884,833 |
410.2 |
BGH106 |
No significant intercepts |
BGH107 |
582991 |
9884982 |
814 |
270 |
-75 |
496.9 |
502.2 |
8.21 |
5.21 |
582,826 |
9,884,984 |
343.4 |
BGH108 |
582963 |
9884905 |
828 |
270 |
-62 |
377.2 |
377.5 |
11.95 |
0.31 |
582,786 |
9,884,895 |
495.2 |
381.5 |
381.8 |
7.40 |
0.30 |
582,784 |
9,884,895 |
491.5 |
385.3 |
387.5 |
4.50 |
2.20 |
582,781 |
9,884,895 |
487.6 |
391.0 |
395.0 |
2.09 |
3.96 |
582,777 |
9,884,894 |
482.1 |
401.0 |
402.0 |
1.44 |
1.00 |
582,773 |
9,884,894 |
475.1 |
405.3 |
409.4 |
2.40 |
4.05 |
582,769 |
9,884,893 |
470.3 |
BGH109 |
No significant intercepts |
BGH110 |
582963 |
9884905 |
828 |
270 |
-73 |
459.2 |
467.4 |
1.00 |
8.14 |
582,799 |
9,884,879 |
397.0 |
468.1 |
476.7 |
10.35 |
8.58 |
582,795 |
9,884,878 |
389.2 |
485.5 |
486.2 |
10.30 |
0.70 |
582,788 |
9,884,876 |
377.8 |
489.8 |
490.9 |
2.01 |
1.12 |
582,786 |
9,884,875 |
374.0 |
BGH111 |
582959 |
9884759 |
831 |
270 |
-55 |
334.4 |
341.3 |
4.24 |
6.89 |
582,768 |
9,884,745 |
553.1 |
342.4 |
350.0 |
4.92 |
7.65 |
582,762 |
9,884,745 |
547.0 |
352.5 |
357.3 |
0.67 |
4.75 |
582,756 |
9,884,744 |
540.6 |
358.3 |
361.3 |
0.63 |
3.03 |
582,753 |
9,884,744 |
537.0 |
362.7 |
367.2 |
0.58 |
4.50 |
582,749 |
9,884,744 |
533.3 |
368.0 |
370.2 |
3.15 |
2.16 |
582,746 |
9,884,743 |
530.4 |
BGH112 |
582870 |
9885354 |
790 |
270 |
-55 |
130.3 |
130.6 |
2.32 |
0.30 |
582,797 |
9,885,360 |
681.8 |
135.3 |
135.7 |
5.69 |
0.44 |
582,794 |
9,885,360 |
677.7 |
BGH113 |
582910 |
9885205 |
780 |
270 |
-62 |
213.0 |
216.6 |
0.94 |
3.60 |
582,810 |
9,885,204 |
590.1 |
229.0 |
230.0 |
4.49 |
1.00 |
582,803 |
9,885,204 |
577.3 |
BGH114 |
582870 |
9885354 |
790 |
270 |
-63 |
138.5 |
138.9 |
4.40 |
0.36 |
582,807 |
9,885,358 |
666.2 |
143.3 |
143.6 |
6.84 |
0.30 |
582,805 |
9,885,358 |
662.1 |
147.0 |
147.6 |
3.83 |
0.65 |
582,803 |
9,885,358 |
658.8 |
151.5 |
151.8 |
0.82 |
0.30 |
582,801 |
9,885,358 |
655.0 |
BGH115 |
No significant intercepts |
BGH116 |
582886 |
9884671 |
818 |
270 |
-58 |
285.4 |
292.0 |
3.51 |
6.63 |
582,727 |
9,884,661 |
577.7 |
292.5 |
294.0 |
1.04 |
1.54 |
582,724 |
9,884,660 |
574.2 |
BGH117 |
No significant intercepts |
BGH118 |
582842 |
9885430 |
769 |
270 |
-60 |
95.0 |
95.9 |
2.05 |
0.90 |
582,795 |
9,885,430 |
686.6 |
100.6 |
100.9 |
0.95 |
0.30 |
582,792 |
9,885,430 |
682.1 |
BGH119 |
582842 |
9885430 |
769 |
270 |
-75 |
103.0 |
105.0 |
2.33 |
2.00 |
582,814 |
9,885,431 |
669.5 |
BGH120 |
582886 |
9884671 |
818 |
270 |
-70 |
323.0 |
327.4 |
0.98 |
4.41 |
582,746 |
9,884,662 |
528.2 |
330.3 |
334.4 |
1.92 |
4.14 |
582,741 |
9,884,662 |
522.6 |
BGH121 |
No significant intercepts |
BGH122 |
582853 |
9885112 |
780 |
275 |
-65 |
153.4 |
157.5 |
1.50 |
4.09 |
582,786 |
9,885,123 |
640.6 |
158.1 |
161.9 |
1.26 |
3.81 |
582,784 |
9,885,123 |
636.5 |
162.8 |
165.0 |
1.66 |
2.25 |
582,783 |
9,885,123 |
633.1 |
BGH123 |
582960 |
9884759 |
831 |
270 |
-70 |
432.0 |
437.1 |
1.96 |
5.05 |
582,789 |
9,884,746 |
432.8 |
438.5 |
438.8 |
1.20 |
0.30 |
582,787 |
9,884,746 |
429.3 |
BGH124 |
No significant intercepts |
BGH125 |
No significant intercepts |
BGH126b |
582842 |
9885204 |
800 |
270 |
-65 |
150.8 |
151.6 |
1.26 |
0.76 |
582,785 |
9,885,211 |
659.7 |
164.0 |
164.3 |
1.23 |
0.3 |
582,780 |
9,885,212 |
647.8 |
BGH127 |
582854 |
9885112 |
781 |
275 |
-50 |
145.0 |
145.3 |
1.44 |
0.3 |
582,760 |
9,885,121 |
669.8 |
155.3 |
158.0 |
0.62 |
2.75 |
582,753 |
9,885,121 |
661.1 |
BGH128 |
583076 |
9885130 |
758 |
270 |
-68 |
400.8 |
407.3 |
4.47 |
6.51 |
582,904 |
9,885,137 |
393.4 |
408.8 |
410.4 |
0.72 |
1.55 |
582,901 |
9,885,138 |
388.9 |
412.6 |
416.0 |
1.11 |
3.4 |
582,899 |
9,885,138 |
385.1 |
BGH129 |
582912 |
9885391 |
786 |
270 |
-60 |
175.6 |
178.5 |
1.64 |
2.93 |
582,826 |
9,885,391 |
631.3 |
181.1 |
181.4 |
0.95 |
0.3 |
582,824 |
9,885,391 |
627.6 |
BGH130 |
582824 |
9885062 |
788 |
265 |
-50 |
126.3 |
127.0 |
1.33 |
0.68 |
582,740 |
9,885,062 |
693.0 |
133.0 |
134.0 |
0.91 |
1 |
582,736 |
9,885,062 |
687.9 |
139.2 |
139.6 |
5.43 |
0.4 |
582,732 |
9,885,062 |
683.5 |
BGH131 |
582931 |
9885285 |
801 |
270 |
-53 |
196.9 |
200.6 |
0.71 |
3.7 |
582,805 |
9,885,289 |
647.4 |
210.0 |
210.3 |
0.9 |
0.3 |
582,797 |
9,885,289 |
638.9 |
BGH132 |
582912 |
9885391 |
786 |
270 |
-50 |
169.0 |
172.7 |
1.46 |
3.74 |
582,806 |
9,885,388 |
652.1 |
175.8 |
176.2 |
1.6 |
0.4 |
582,802 |
9,885,388 |
648.1 |
BGH133 |
582851 |
9885511 |
764 |
270 |
-60 |
49.6 |
50.3 |
2.54 |
0.68 |
582,825 |
9,885,513 |
720.8 |
53.6 |
53.8 |
2.38 |
0.22 |
582,823 |
9,885,514 |
717.5 |
BGH134 |
No significant intercepts |
BGH135 |
582836 |
9885387 |
775 |
270 |
-50 |
82.0 |
82.9 |
0.63 |
0.89 |
582,785 |
9,885,387 |
710 |
92.7 |
93.0 |
1.44 |
0.3 |
582,778 |
9,885,387 |
702 |
104.0 |
105.0 |
0.67 |
1 |
582,771 |
9,885,387 |
693 |
BGH136 |
582852 |
9885467 |
759 |
270 |
-58 |
65.1 |
66.0 |
1.32 |
0.86 |
582,817 |
9,885,467 |
704 |
69.8 |
72.3 |
0.69 |
2.55 |
582,815 |
9,885,467 |
699 |
75.7 |
79.1 |
1 |
3.41 |
582,811 |
9,885,467 |
694 |
BGH137 |
582931 |
9885285 |
801 |
270 |
-62 |
224.4 |
230.6 |
1.41 |
6.2 |
582,830 |
9,885,285 |
598 |
BGH138 |
582836 |
9885387 |
775 |
270 |
-65 |
97.4 |
97.7 |
2.3 |
0.3 |
582,795 |
9,885,387 |
687 |
BGH139 |
582951 |
9885468 |
748 |
270 |
-59 |
123.9 |
127.6 |
0.98 |
3.77 |
582,886 |
9,885,472 |
641 |
BGH140 |
582987 |
9885256 |
783 |
270 |
-50 |
249.5 |
253.6 |
1.26 |
4.05 |
582,831 |
9,885,266 |
586 |
BGH141 |
582912 |
9885164 |
783 |
270 |
-50 |
174.6 |
179.3 |
1.29 |
4.72 |
582,802 |
9,885,170 |
645 |
BGH142 |
582912 |
9885016 |
826 |
270 |
-50 |
230.4 |
235.8 |
1.29 |
5.39 |
582,766 |
9,885,018 |
645 |
236.7 |
238.3 |
1.98 |
1.58 |
582,763 |
9,885,018 |
641 |
BGH143 |
582912 |
9885164 |
783 |
270 |
-60 |
210.8 |
215.8 |
0.86 |
5.04 |
582,803 |
9,885,172 |
600 |
225.3 |
225.7 |
2.06 |
0.35 |
582,796 |
9,885,173 |
590 |
BGH144a |
582987 |
9885255 |
783 |
270 |
-60 |
264.6 |
266.8 |
2.17 |
1.85 |
582,857 |
9,885,263 |
552 |
269.1 |
269.4 |
0.3 |
3.1 |
582,855 |
9,885,264 |
549 |
BGH145 |
582912 |
9885016 |
826 |
270 |
-60 |
265.5 |
271.0 |
2.59 |
5.48 |
582,786 |
9,885,013 |
589 |
271.4 |
272.8 |
1.17 |
1.37 |
582,784 |
9,885,013 |
586 |
282.2 |
282.5 |
16.25 |
0.3 |
582,779 |
9,885,013 |
577 |
BGH146 |
No significant intercepts |
BGH147 |
No significant intercepts |
BGH148 |
No significant intercepts |
BGH149 |
582954 |
9884799 |
834 |
270 |
-55 |
335.4 |
337.2 |
2.1 |
1.75 |
582,761 |
9,884,799 |
559 |
342.0 |
346.0 |
4.45 |
4 |
582,757 |
9,884,799 |
553 |
347.7 |
350.7 |
2.43 |
3.07 |
582,754 |
9,884,799 |
548 |
352.3 |
352.8 |
5.12 |
0.51 |
582,752 |
9,884,799 |
546 |
362.5 |
363.0 |
0.57 |
0.5 |
582,746 |
9,884,799 |
537 |
BGH150 |
No significant intercepts |
BGH151 |
No significant intercepts |
BGH152D1 |
582821 |
9884623 |
805 |
269 |
-72 |
257.0 |
259.9 |
2.01 |
2.85 |
582,731 |
9,884,621 |
564 |
263.0 |
263.3 |
9.06 |
0.3 |
582,729 |
9,884,621 |
559 |
BGH153 |
582953 |
9884875 |
834 |
270 |
-55 |
327.5 |
330.6 |
1.6 |
3.14 |
582,766 |
9,884,880 |
563 |
333.4 |
336.5 |
2.62 |
3.06 |
582,763 |
9,884,880 |
559 |
342.4 |
345.7 |
1.63 |
3.29 |
582,757 |
9,884,881 |
551 |
347.0 |
349.7 |
0.57 |
2.68 |
582,755 |
9,884,881 |
548 |
367.8 |
368.7 |
4.4 |
0.91 |
582,743 |
9,884,881 |
532 |
BGH154 |
No significant intercepts |
BGH155 |
No significant intercepts |
BGH156 |
582988 |
9885258 |
789 |
270 |
-68 |
289.2 |
289.8 |
2.57 |
0.65 |
582,875 |
9,885,264 |
523 |
296.6 |
296.9 |
0.77 |
0.3 |
582,872 |
9,885,265 |
516 |
BGH157 |
No significant intercepts |
BGH158 |
582802 |
9885086 |
788 |
270 |
-47 |
105.4 |
107.2 |
0.68 |
1.75 |
582,740 |
9,885,087 |
701 |
113.0 |
117.0 |
0.85 |
4 |
582,735 |
9,885,087 |
694 |
120.0 |
120.8 |
0.61 |
0.75 |
582,732 |
9,885,087 |
690 |
BGH159 |
582975 |
9884940 |
822 |
270 |
-72 |
436.4 |
437.7 |
3.66 |
1.33 |
582,819 |
9,884,932 |
415 |
448.0 |
449.0 |
0.62 |
1 |
582,814 |
9,884,932 |
405 |
457.2 |
457.6 |
1.28 |
0.4 |
582,810 |
9,884,933 |
397 |
BGH160 |
582903 |
9885087 |
806 |
270 |
-50 |
219.1 |
219.5 |
1.12 |
0.38 |
582,755 |
9,885,090 |
645 |
221.6 |
222.0 |
1.29 |
0.49 |
582,753 |
9,885,090 |
643 |
226.7 |
230.0 |
0.74 |
3.3 |
582,749 |
9,885,090 |
638 |
233.6 |
233.9 |
2.71 |
0.25 |
582,745 |
9,885,090 |
635 |
BGH161 |
No significant intercepts |
BGH162 |
582851 |
9885512 |
764 |
270 |
-74 |
59.0 |
59.6 |
6.57 |
0.56 |
582,835 |
9,885,512 |
707 |
BGH163 |
583009 |
9885093 |
799 |
270 |
-70 |
409.7 |
417.1 |
3.37 |
7.36 |
582,868 |
9,885,098 |
411 |
420.7 |
422.1 |
0.55 |
1.42 |
582,865 |
9,885,098 |
403 |
423.8 |
429.0 |
0.74 |
5.24 |
582,863 |
9,885,099 |
399 |
429.6 |
429.9 |
1.96 |
0.3 |
582,862 |
9,885,099 |
396 |
432.0 |
433.0 |
0.59 |
1 |
582,860 |
9,885,099 |
393 |
BGH164 |
582776 |
9884574 |
797 |
270 |
-70 |
171.0 |
172.0 |
0.72 |
1 |
582,709 |
9,884,571 |
639 |
176.0 |
180.0 |
0.76 |
4 |
582,707 |
9,884,570 |
633 |
BGH165 |
582903 |
9885087 |
806 |
270 |
-60 |
242.9 |
247.2 |
2.41 |
4.27 |
582,771 |
9,885,083 |
600 |
248.4 |
250.0 |
2.14 |
1.61 |
582,769 |
9,885,083 |
597 |
BGH166 |
582823 |
9884623 |
806 |
270 |
-60 |
208.9 |
209.7 |
1.06 |
0.75 |
582,720 |
9,884,623 |
623 |
214.2 |
218.1 |
0.52 |
3.9 |
582,717 |
9,884,623 |
618 |
221.0 |
222.3 |
2.96 |
1.26 |
582,714 |
9,884,623 |
613 |
BGH167 |
582975 |
9885388 |
767 |
270 |
-53 |
195.7 |
200.5 |
1.85 |
4.86 |
582,856 |
9,885,388 |
609 |
BGH168 |
582982 |
9885169 |
770 |
270 |
-50 |
252.6 |
257.3 |
1.93 |
4.69 |
582,832 |
9,885,192 |
565 |
263.4 |
263.6 |
19.4 |
0.25 |
582,827 |
9,885,193 |
558 |
BGH169a |
582823 |
9884616 |
794 |
270 |
-79 |
301.0 |
301.8 |
1.06 |
0.75 |
582,745 |
9,884,613 |
503 |
BGH170 |
583009 |
9885093 |
799 |
270 |
-60 |
365.0 |
370.1 |
2.5 |
5.1 |
582,830 |
9,885,095 |
478 |
371.9 |
376.0 |
2.16 |
4.15 |
582,827 |
9,885,095 |
473 |
376.9 |
377.1 |
3.94 |
0.25 |
582,825 |
9,885,095 |
470 |
388.9 |
390.0 |
1.13 |
1.1 |
582,819 |
9,885,096 |
459 |
BGH171 |
582982 |
9885169 |
770 |
270 |
-62 |
275.5 |
278.0 |
1.4 |
2.52 |
582,847 |
9,885,185 |
529 |
285.5 |
289.4 |
0.63 |
3.9 |
582,841 |
9,885,186 |
520 |
291.9 |
292.2 |
16.5 |
0.3 |
582,838 |
9,885,187 |
517 |
BGH172 |
No significant intercepts |
BGH173 |
582982 |
9885167 |
766 |
270 |
-70 |
319.6 |
322.4 |
5.18 |
2.8 |
582,873 |
9,885,176 |
464 |
325.7 |
330.0 |
4.66 |
4.28 |
582,871 |
9,885,177 |
458 |
330.9 |
336.6 |
2.24 |
5.69 |
582,869 |
9,885,177 |
452 |
BGH174 |
583010 |
9885093 |
799 |
270 |
-50 |
363.5 |
366.0 |
0.81 |
2.5 |
582,791 |
9,885,091 |
507 |
BGH175 |
582976 |
9885388 |
767 |
270 |
-71 |
187.8 |
192.3 |
2.15 |
4.5 |
582,916 |
9,885,392 |
587 |
193.9 |
197.3 |
3.33 |
3.4 |
582,914 |
9,885,392 |
582 |
199.4 |
199.9 |
0.61 |
0.55 |
582,913 |
9,885,392 |
578 |
203.7 |
204.8 |
2.36 |
1.12 |
582,912 |
9,885,392 |
573 |
BGH176 |
582993 |
9884984 |
814 |
270 |
-78 |
512.7 |
516.2 |
1.1 |
3.46 |
582,849 |
9,884,970 |
321 |
518.0 |
522.3 |
2.44 |
4.25 |
582,847 |
9,884,970 |
315 |
525.5 |
528.0 |
1.64 |
2.55 |
582,845 |
9,884,969 |
309 |
BGH177 |
582958 |
9884766 |
831 |
253 |
-63 |
405.6 |
409.2 |
1.09 |
3.56 |
582,774 |
9,884,706 |
473 |
412.6 |
414.9 |
1.79 |
2.32 |
582,771 |
9,884,705 |
467 |
421.4 |
421.7 |
4.39 |
0.24 |
582,767 |
9,884,704 |
461 |
BGH178 |
No significant intercepts |
BGH179 |
582959 |
9884769 |
831 |
248 |
-70 |
489.6 |
491.2 |
1.11 |
1.6 |
582,798 |
9,884,701 |
373 |
BGH180b |
582774 |
9884571 |
794 |
270 |
-77 |
213.1 |
215.9 |
0.91 |
2.85 |
582,722 |
9,884,571 |
582 |
217.5 |
222.6 |
1.58 |
5.11 |
582,720 |
9,884,571 |
576 |
224.1 |
224.3 |
0.89 |
0.25 |
582,719 |
9,884,571 |
573 |
BGH181 |
582955 |
9884806 |
837 |
270 |
-63 |
369.5 |
372.5 |
1.41 |
3.02 |
582,778 |
9,884,809 |
511 |
377.3 |
379.5 |
8.38 |
2.21 |
582,774 |
9,884,809 |
505 |
385.4 |
385.7 |
1.2 |
0.3 |
582,770 |
9,884,809 |
499 |
BGH182 |
582953 |
9884875 |
835 |
270 |
-65 |
393.0 |
395.2 |
4.08 |
2.22 |
582,794 |
9,884,872 |
474 |
403.4 |
408.2 |
4.66 |
4.81 |
582,789 |
9,884,872 |
464 |
416.2 |
416.5 |
0.63 |
0.34 |
582,785 |
9,884,872 |
454 |
424.9 |
425.5 |
1.83 |
0.61 |
582,781 |
9,884,872 |
446 |
439.5 |
439.7 |
24.6 |
0.25 |
582,775 |
9,884,872 |
433 |
446.8 |
449.0 |
0.95 |
2.17 |
582,771 |
9,884,872 |
426 |
BGH183 |
582844 |
9884709 |
843 |
270 |
-71 |
285.7 |
289.0 |
0.83 |
3.33 |
582,749 |
9,884,711 |
572 |
290.0 |
293.5 |
2.69 |
3.54 |
582,747 |
9,884,711 |
568 |
296.0 |
296.7 |
1.08 |
0.7 |
582,746 |
9,884,711 |
564 |
299.3 |
303.4 |
4.67 |
4.14 |
582,744 |
9,884,711 |
559 |
305.5 |
306.1 |
5.89 |
0.65 |
582,742 |
9,884,711 |
555 |
309.8 |
313.2 |
2.99 |
3.44 |
582,740 |
9,884,711 |
550 |
314.1 |
318.0 |
1.52 |
3.9 |
582,738 |
9,884,711 |
546 |
322.0 |
323.9 |
0.86 |
1.86 |
582,736 |
9,884,711 |
539 |
BGH184 |
582957 |
9884767 |
834 |
270 |
-52 |
321.4 |
324.9 |
2.1 |
3.42 |
582,758 |
9,884,761 |
579 |
327.3 |
329.1 |
5.9 |
1.87 |
582,755 |
9,884,760 |
575 |
331.5 |
333.5 |
3.08 |
2.05 |
582,752 |
9,884,760 |
572 |
337.0 |
339.0 |
0.67 |
2 |
582,748 |
9,884,760 |
568 |
340.6 |
342.5 |
0.53 |
1.96 |
582,746 |
9,884,759 |
565 |
345.6 |
350.0 |
10.66 |
4.4 |
582,742 |
9,884,759 |
561 |
352.0 |
355.8 |
0.57 |
3.8 |
582,738 |
9,884,758 |
556 |
356.5 |
356.7 |
1.96 |
0.24 |
582,736 |
9,884,758 |
554 |
BGH185 |
582849 |
9884706 |
842 |
270 |
-75 |
326.4 |
331.8 |
1.95 |
5.31 |
582,760 |
9,884,706 |
525 |
332.8 |
335.6 |
1.99 |
2.83 |
582,758 |
9,884,706 |
521 |
339.7 |
342.0 |
0.73 |
2.3 |
582,756 |
9,884,706 |
514 |
345.1 |
345.4 |
1.66 |
0.26 |
582,754 |
9,884,706 |
510 |
BGH186 |
582953 |
9884802 |
834 |
270 |
-71 |
410.9 |
423.5 |
3.94 |
12.58 |
582,799 |
9,884,799 |
447 |
424.0 |
427.0 |
0.61 |
3 |
582,795 |
9,884,799 |
440 |
433.4 |
435.5 |
2.75 |
2.1 |
582,791 |
9,884,799 |
432 |
441.1 |
448.5 |
4.84 |
7.35 |
582,786 |
9,884,798 |
423 |
449.0 |
452.4 |
3.4 |
3.35 |
582,784 |
9,884,798 |
417 |
BGH187 |
582991 |
9884982 |
814 |
278 |
-61 |
365.7 |
368.4 |
1.65 |
2.73 |
582,808 |
9,885,001 |
496 |
372.5 |
373.0 |
1 |
0.51 |
582,805 |
9,885,001 |
491 |
375.6 |
376.0 |
0.75 |
0.45 |
582,804 |
9,885,002 |
489 |
381.9 |
385.4 |
7.44 |
3.5 |
582,800 |
9,885,002 |
482 |
387.9 |
391.0 |
2.4 |
3.12 |
582,797 |
9,885,002 |
477 |
394.2 |
394.5 |
2.38 |
0.25 |
582,794 |
9,885,002 |
473 |
409.6 |
410.0 |
25.3 |
0.4 |
582,786 |
9,885,003 |
460 |
BGH188 |
582991 |
9884982 |
814 |
284 |
-67 |
Independent assays still outstanding |
Appendix 3: Checklist of
Assessment and Reporting Criteria
Drilling techniques |
All drillholes were diamond drill cored and drilled from surface
(most intersections drilled using NQ size), holes drilled
orientated in an east-west direction were angled between -60° and
-70°. Holes collared in the west were drilled out in fan patterns
into the side of a hill and angled between 0° and minus 35°. |
Logging |
All of the drillholes were geologically logged by qualified
geologists. The logging is of an appropriate standard for grade
estimation. |
Drill sample recovery |
Core recovery in the mineralised zones was observed to be very good
and is on average 97%. |
Sampling methods |
Half core samples were collected continuously through the
mineralised zones after being cut longitudinally in half using a
diamond saw. Drillhole samples were taken at nominal 1 m intervals,
which were adjusted to smaller intervals in order to target the
cassiterite vein zones. Lithological contacts were honoured during
the sampling. MSA’s observations indicated that the routine
sampling was performed to a reasonable standard and is suitable for
evaluation purposes. |
Quality of assay data and laboratory tests |
At the on-site ABM laboratory (managed by Anchem), 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.Received
samples at ALS Johannesburg are checked off against the list of
samples supplied and logged in the system. Quality Control is
performed by way of sieve tests every 50 samples and should a
sample fail, the preceding 50 samples are ground in a ring mill
pulveriser 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.Prior to the 2021 drilling the assays were also
conducted at ALS Global in Johannesburg where samples were analysed
for tin using fused disc ME-XRF05 with 10% precision and an upper
limit of 10 000 ppm. This was reduced to 5,000 ppm from 2014
onwards. Over limit samples were sent to Vancouver for ME-XRF10
which uses a Lithium Borate 50:50 flux with an upper detection
limit of 60% and precision of 5%. ME-ICP61, HF, HNO3, HCL04 and HCL
leach with ICP-AES finish was used for 33 elements including base
metals. ME-OG62, a four-acid digestion, was used on high grade
samples for Pb, Zn, Cu & Ag. External quality assurance of the
laboratory assays for the Alphamin samples was monitored. Blank
samples (299), certified reference materials (434) and duplicate
samples (357) were inserted with the field samples accounting for
approximately 11% of the total sample set.The QAQC measures used by
Alphamin revealed the following:
- Blank samples indicated that no significant contamination
occurred overall. Low levels of contamination (mostly <200 ppm
Sn) mostly occurred, however 12 values between 229 ppm and 1,285
ppm were returned. Given the high grades at Bisie, the levels of
contamination are not significant.
- Five different CRMs were used with expected values between
0.18% and 31.42% Sn. The lower grade CRMs were prepared by Ore
Research and Exploration (OREAS) and the two high grade CRMs (4.19%
and 31.42% Sn) by the Bureau of Analysed Samples Ltd (BCS). In
general, ALS returned values within the tolerance limits (three
standard deviations) for the OREAS CRMs, although slightly lower
than the expected values. Assays of the highest grade BCS CRM were
mostly outside of the three standard deviation limits but within
±4%of the expected value. The update assays of the high grade
BCS-355 CRM were within ±2% of the expected value with an overall
low bias relative to the CRM expected value. For the 5.07% Sn BCS
CRM, assays were consistently lower than the expected value by as
much as 7%. This trend continued for the update assays with an
average under-assay of 5% relative to the CRM expected value.
Overall, the CRMs results indicate a slight negative bias for the
ALS assays.
- Coarse duplicates show mostly excellent correlation, indicating
minimal error in the process and a high degree of
repeatability.
|
Verification of sampling and assaying |
The mineralisation in thirteen of the drillholes completed in 2021
at Mpama South were visually verified during a site-visits by the
QP in August 2021 and several of the initial drillholes were
examined during earlier site visits to Bisie. The QP observed the
mineralisation in the cores and compared it with the assay results.
It was found that the assays generally agreed with the observations
made on the core. Core photos from the drilling programme have
regularly been provided to the QP for inspection.105 pulp
duplicates were sent to SGS (Johannesburg) in November 2021 for
confirmation assaying.
- The pulp duplicates
showed acceptable correlation with the ALS assays at both high- and
low-grade ranges with an overall bias of near zero.
- Average bias for
grade ranges > 1% is less than 1%.
- Tendency for ALS to
be higher (~5%) for the grade ranges less than 1%.
- Inter-lab precision
(after removal of <0.10%) is 85% within 10% error and 95% within
20% error
|
Location of data points |
The drillhole collar positions were surveyed using a differential
GPS.Downhole surveys were completed using a multishot down-hole
survey instrument (Reflex EZ-Track), or north seeking gyro (Reflex
EZ-Gyro / Reflex Gyro Sprint-IQ). |
Tonnage factors (in situ bulk densities) |
Relative density measurements were made on the majority of recent
drillhole samples using the Archimedes Principle of weight n air
versus weight in water. A regression formula of tin grade against
relative density was developed and applied to the samples that did
not have direct measurements. The assigned specific gravity was
interpolated into the block model using ordinary kriging. |
Data density and distribution |
A total of 124 holes were drilled in Mpama South. An additional 6
holes previously drilled in the Wedge area of Mpama North have been
included in the Mineral Resource. Holes were drilled steeply from
east to west, along section lines spaced approximately 60 m to 80 m
apart. Several sets of holes were drilled in a fan pattern into the
side of a steep hill, with orientations spanning from the northeast
to the southeast (from azimuth 045° to 125°). These drillholes fans
intersect the mineralisation 25 m to 40 m apart in most of the
Mineral Resource area. |
Database integrity |
Data was provided as Excel files. MSA completed spot checks on the
database and is confident that the Alphamin database is an accurate
representation of the original data collected. |
Dimensions |
The mineralisation consists of seven zones, with a total extent of
950 m along strike. MZ1 has a strike length of 950 m and 500 m
down-dip and MZ2 has a strike length of 650 m and 500 m down-dip.
Together, these two zones account for 88% of the Mineral Resource.
The zones occurring in the footwall and hangingwall of the MZ1 and
MZ2 tend to be narrower and irregular in shape with strike lengths
from 100 m to 300 m. MZ6, which is located to the south has a
strike length of 270 m and a dip length of 110 m. |
Geological interpretation |
The mineralised intersections are clearly discernible in drill
core. The Mineral Resource is interpreted to occur as irregular
veins and disseminations of cassiterite that when combined form
tabular mineralised zones, dipping 65-70° to the east. The
mineralised zones are hosted in chlorite schist that is the result
of intense hydrothermal alteration associated with a fracture
system.MZ1 is the largest zone by volume of the Mineral Resource,
with an extent of 950 m and an average thickness of 4.1 m. MZ2 is
the second largest zone, with a strike length of 650 m and an
average thickness of 3.4 m. However, the thicknesses of these two
zones vary from as little as 1 m, up to 13 m thick.Three smaller
zones (MZ3 to MZ5) occur in the footwall of the main zones of
mineralisation which progressively become narrower, moving away
from the main zones. MZ3 thickness ranges from 1 m to 9 m with an
average thickness of 1.5 m. MZ4 has an average thickness of 1 m,
attaining a maximum thickness of 5 m. MZ5 has an average thickness
of 1.2 m, ranging from 1 m to 5 m. All zones become narrower along
the edges, where they pinch-out.A narrow zone (MZ7) occurs in the
hangingwall of the main mineralisation with an average thickness of
0.5 m and a maximum thickness of 4 m.MZ6, which occurs to the
south, tends to be lower in grade and has an average thickness of 4
m, ranging from 1 m up to 9 m. MZ6 is not part of the Mineral
Resource. A three-dimensional wireframe model was created for the
seven zones of mineralisation based on a grade threshold of 0.40%
Sn. MZ1 and MZ2 make up the main zone, which are the most
consistent zones and occur within a persistent chlorite schist.
Narrower less continuous zones occur above and below the main zone
within chlorite-mica schists. |
Domains |
The mineralisation was modelled as seven tabular zones containing
irregular vein style mineralisation. A hard boundary was used to
select data for estimation in order to honour the sharp nature of
vein boundaries. |
Compositing |
Sample lengths were composited to 1 m by length and density
weighting. |
Statistics and variography |
Statistics for the seven estimation domains show distributions that
are positively skewed with coefficients of variation (CV) ranging
from 1.3 to 1.96, the only exception being domain MZ7 which shows
lower variability due to very few composites resulting in a CV of
0.79.The two main zones (MZ1 and MZ2) have similar average tin
grades (2.22% and 2.11% respectively). The smaller, footwall zones
(MZ3 to MZ5) are higher in tin grade with averages ranging from 3%
to 4.41% while MZ6 and MZ7 are lower in tin grade, with an average
of 0.63% and 1.07% respectively.Normal Scores semivariograms were
calculated in the plane of the mineralisation, down-hole and across
strike. Variograms were modelled for tin, with a range of 40 m
within the plane of mineralisation and with a range of 3 m across
the structures. |
Top or bottom cuts for grades |
Top caps were applied to outlier values, identified as breaks in
the cumulative, probability plots. |
Data clustering |
Data clustering occurs where the fan drilling, collared on the
western side of the deposit, intersect the surface drilling
collared in the east, resulting in a data spacing of 25 m to 40 m
towards the centre of the deposit. Outside of this area, the grid
spacing becomes more regular, 60m to 80 m along strike and 50 m
down-dip. |
Block size |
A rotated block model with a parent cell of 10 mX by 10 mY by 2 mZ
was used. Sub-celling was used to divide the parent cells to a
minimum sub-cell of 1 mX by 1mY by 0.2 mZ to closely fit the narrow
portions of the vein structures |
Grade estimation |
Tin, copper, lead, zinc, silver, arsenic and density were estimated
using ordinary kriging. A minimum number of 5 and a maximum of 10
one metre composites were required for the tin and density
estimates. A minimum of 5 and maximum of 8 composites were used for
the other elements. Estimation was carried out in three passes,
with the first pass using search volumes coinciding with the
variogram ranges. A second pass estimate expanded the search
volumes by a factor of 1.5 to estimate blocks where insufficient
samples were present for an estimate in the first pass. Where
blocks remained un-estimated from the first two passes, a third
pass, using an expansion factor of 10 was used to ensure all blocks
in the model received a grade and density estimate.Dynamic
Anisotropy was used to orientate the search volumes to the strike
and dip of the individual mineralised zones. |
Resource classification |
Indicated Mineral Resources were declared where the drillhole
spacing is approximately 40 m and where the geological model has
low variability. The remainder of the interpreted model was
classified as Inferred Mineral Resources, corresponding to areas
informed by drilling spaced 50 m to 80 m apart with a maximum
extrapolation of 20 m from the nearest drillhole. |
Mining cuts and cut-off grade assumptions. |
A minimum of 1 m was applied to the mineralisation model. The
thickness, grade and steep dip implies that the Mineral Resource
can be extracted using established underground mining methods
similar to those applied at Mpama North.A 1% cut-off grade was
applied based on the Mpama North costs and prevailing tin
price.Isolated blocks above cut-off grade in dominantly low-grade
areas of the model were not included in the Mineral Resource |
Metallurgical factors or assumptions |
The tin mineralisation occurs as cassiterite, an oxide of tin
(SnO2). At Mpama North gravity separation is used to produce a tin
concentrate. The Cu, Zn and Pb mineralisation occurs as sulphides,
which are removed by flotation to create the cassiterite product.
It is assumed that similar processes will be used to process the
Mpama South mineralisation. |
Legal aspects and tenure |
Alphamin through its wholly owned DRC subsidiary, Alphamin Mining
Bisie SA, has a Mining License PE 13155 which includes the Bisie
Tin Mine. Alphamin has an 84.14 percent interest in ABM. The
Government of the Democratic Republic of Congo (GDRC) has a
non-dilutive, 5% share in ABM. |
Audits, reviews and site inspection |
The following review work was completed by MSA:
- Inspection of approximately 20% of
mineralised core intersections used in the Maiden Mineral Resource
estimate.
- Database checks.
- Inspection of Mpama South drill sites
in August 2021.
- On-site review of the exploration
processes.
- Laboratory inspections.
|
1 Based on data obtained from International Tin Association Tin
Industry Review 20222 See News Announcement 7 March 2022 for
Preliminary Economic Assessment and Resources3 CIM Definition: An
Indicated Mineral Resource is that part of a Mineral Resource for
which quantity, grade or quality, densities, shape and physical
characteristics are estimated with sufficient confidence to allow
the application of Modifying Factors insufficient detail to support
mine planning and evaluation of the economic viability of the
deposit.4 CIM Definition: An Inferred Mineral Resource is that part
of a Mineral Resource for which quantity and grade or quality are
estimated on the basis of limited geological evidence and sampling.
Geological evidence is sufficient to imply but not verify
geological and grade or quality continuity.
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