Second Batch of Assay Results Received
Released
Released
Announcement PDF
ABN 96 122 995 073
TO:
DATE:
COMPANY ANNOUNCEMENTS OFFICE
ASX LIMITED
ASX Code: BML
27 JANUARY 2016
FOR IMMEDIATE RELEASE
______________________________________________
SECOND BATCH OF ASSAY RESULTS RECEIVED FROM JV PARTNERS
Further high-grade massive sulphides intersected at Maibele North
Project
High-Grade Nickel sulphide mineralisation intersected up to 400m
along strike from existing resource
Botswana Metals Limited (“BML”) is pleased to advise that the it has received a second
batch of assay results from Joint Venture partners, BCL Limited, for the ~12,000m drilling
campaign completed in 2015 at Maibele North. (Table 1 – Significant Intersections). BML
recently received results from further 26 completed infill and extension holes from assays
that were undertaken at an offsite independent laboratory as well as from onsite analysis
at BCL’s in-house laboratory facitities at both the Tati-Ni and Selibi Phikwe Ni-Cu mines.
Results from the final 5 holes are all that remain to complete the analysis of the program.
Highlights of the second batch of assay results include:
MARD0122:
4.0m @ 1.80% Ni, 0.59% Cu, 882 ppm Co, 0.08g/t Au, 1.51g/t 4PGEs from 134.23m
Including
o 1.59m @ 2.17% Ni, 0.74% Cu, 1,054ppm Co, 0.06g/t Au, 2.07g/t 4PGEs from
134.23m
o 1.23m @ 2.21% Ni, 0.4% Cu, 1,040ppm Co, 0.04g/t Au, 1.64g/t 4PGEs from 137m
MARD0129:
2.18m @ 1.55% Ni, 1.28% Cu, 917 ppm Co from 200.27m
Including
o 1.03m @ 2.17% Ni, 2.22% Cu, 1,300ppm Co from 200.27m
o 0.40m @ 1.7% Ni, 0.38% Cu, 900ppm Co from 202.05m
(note: Assays performed at BCL Limited in-house laboratory - Au and PGEs not
assayed for)
MARD0127:
0.59m @ 2.35% Ni, 0.56% Cu, 1130 ppm Co, 0.12g/t Au, 1.05g/t 4PGEs from 73.46m
Botswana Metals Limited
Mailing Address Suite 3, 16 Cotham Road, Kew, Victoria 3101
Registered Office Suite 506, Level 5, 1 Princess Street, Kew, Victoria 3101
P: +61 3 9855 1885; F: +61 3 9855 2885
Email info@botswanametals.com.au
www.botswanametals.com.au
ABN 96 122 995 073
MARC0099:
1.0m @ 2.27% Ni, 2.02% Cu from 240m
(Note: Assays performed at BCL Limited in-house laboratory - Co, Au and PGEs not
assayed for. MARC0099 is a RC hole)
MARD0146:
0.14m @ 2.13% Ni, 0.15% Cu from 252.58m
0.72m @ 1.17% Ni, 0.54% Cu from 254.80m
(Note: Assays performed at BCL Limited in-house laboratory - Co, Au and PGEs not
assayed for)
All widths are down hole thicknesses. A full compilation of significant intersections is
included in Table 1 below. Samples assayed at BCL’s in-house facilities were analysed mostly
at the laboratory at the Selebi Phikwe Ni-Cu mine, with checks undertaken at the company’s
Phoenix Laboratory at the Tati Ni Mine. The Phoenix laboratory at Tati-Ni is SANAS
accredited to the ISO 17025 international standard. The laboratory at the Selebi Phiwke NiCu mine is currently un-certified. Identical QAQC protocols were appled to samples for all
three laboratories and QAQC results were deemed to be acceptable for all sample batches.
Details
The Board of Botswana Metals is highly encouraged by the continuing good results from the
Maibele North Project. This batch of results has continued to return encouraging Ni, Cu, Co,
Au and 4PGEs (Pt, Pd, Rh, Ru) from sulphide zones both within the existing resource and
along strike for over 400m to the east of the current resource. The results now complete
assaying on holes from MARC0099 through to MADD0148. Results from the final four holes,
MADD0149 to MADD0152 remain outstanding.
The program was designed to provide infill detail within the existing resource to enable a
new resource calculation to an indicated or measured status, as well as to test new
conductors detected along strike and adjacent to the orebody that were detected in ground
electro-magnetic (EM) prograns undertaken in 2015.
The infill drilling has confirmed the extent of the existing mineralisation and, where
signifcant sulphide zones have been encountered, metal contents of a similar tenor to that
revealed by the 2014 drilling have been encountered. The density of drilling data will enable
an upgraded resource status and form an integral component of the ongoing Pre-feasibility
studies.
The drilling of SQUID EM conductors along strike to the east of the resource has returned
laterally continuous mineralisation for over 480m. Drilling of this extension is in the early
stage but the series of 80m spaced fences of have intersected sulphide mineralisation that
remains open at depth and along strike. This exciting new zone of mineralisation has the
potential to add significant tonnes to the Maibele North resource. Further deep potential
exists at Maibele North, with the mineralisation open at depth across the entire deposit.
Botswana Metals Limited
Mailing Address Suite 3, 16 Cotham Road, Kew, Victoria 3101
Registered Office Suite 506, Level 5, 1 Princess Street, Kew, Victoria 3101
P: +61 3 9855 1885; F: +61 3 9855 2885
Email info@botswanametals.com.au
www.botswanametals.com.au
ABN 96 122 995 073
Of particular encouragement is the intersection in 2014 drill hole MARD0094, where nearly
7m of Ni sulpide mineralisation was intersected some 200m below, and potentially downdip, of the recently discovered extension zone (Figures 2 and 3).
Figure 1: Collar Plan of the 2015 drill program (Yellow Traces) showing the strike length of
the existing resource (gold shape) and the strike lengths of the recently discovered east and
west extensions. The mineralisation is open to the east, west and at depth.
Figure 2: Plan view of the 2015 drill hole traces (yellow) showing the highlight intersections
from the recent batch of assay results. Pink shapes represent SQUID EM conductor plates.
Botswana Metals Limited
Mailing Address Suite 3, 16 Cotham Road, Kew, Victoria 3101
Registered Office Suite 506, Level 5, 1 Princess Street, Kew, Victoria 3101
P: +61 3 9855 1885; F: +61 3 9855 2885
Email info@botswanametals.com.au
www.botswanametals.com.au
ABN 96 122 995 073
Figure 3: Cross section through holes MARD0116, 0146, 0025 and 0094. The section is
located approximately 180m northeast of the current resource and shows the relationaship
between recently discovered massive and semi-massive sulphide mineralisation hole
MARD0116 and MADD0146. Hole MARD0094 was drilled in 2014 and possibly marks the
extension of this mineralisation, some 320m down dip and ~225m vertically below the
recently discovered sulphide zone. Historic hole, MADD0025, intersected minor pyrrhotite
disseminations approximatley 130m down dip of MADD0146.
Table 1: All Significant intercepts from the recently received batch of assay results
Hole ID
From
Thick
Ni% Cu% Co
Au
Pt
Pd
Rh
Ru
(m)
(m)
ppm g/t
g/t
g/t
g/t
g/t
MADD0117* 92
0.65
0.31 0.07 n/a
n/a n/a n/a n/a n/a
and 188.8 1
0.33 0.07 n/a
n/a n/a n/a n/a n/a
MARD0100* 126
1
0.35 0.04 n/a
n/a n/a n/a n/a n/a
and 130
1
0.34 0.06 n/a
n/a n/a n/a n/a n/a
MARD0119
137
1
0.39 0.29 263
0.03 0.07 0.19 0
0.07
and 140.52 1.24
0.47 0.69 352
0.07 0.02 0.32 0.08 0.1
and 146.1 1.9
0.99 0.27 589
0.03 0.03 0.38 0.1 0.18
incl 147
1
1.42 0.34 874
0.03 0.03 0.56 0.14 0.25
and 151.5 0.35
0.73 0.05 367
0.02 0.02 0.04 0.06 0.12
Botswana Metals Limited
Mailing Address Suite 3, 16 Cotham Road, Kew, Victoria 3101
Registered Office Suite 506, Level 5, 1 Princess Street, Kew, Victoria 3101
P: +61 3 9855 1885; F: +61 3 9855 2885
Email info@botswanametals.com.au
www.botswanametals.com.au
Comment
RESOURCE
INFILL
HOLES
Hole ID
ABN 96 122 995 073
From
Thick
Ni% Cu% Co
Au
Pt
Pd
Rh
Ru
Comment
(m)
(m)
ppm g/t
g/t
g/t
g/t
g/t
MARD0121* NSR
MARD0122
127.55 0.35
1.85 0.1
880
0.03 0.07 0.59 0.24 0.72
and 134.23 4
1.8
0.59 882
0.08 0.07 0.8 0.18 0.46
incl 134.23 1.59
2.17 0.74 1054 0.06 0.05 1.02 0.27 0.73
incl 137
1.23
2.21 0.4
1040 0.04 0.03 0.83 0.14 0.33
and 139.88 1.12
0.33 0.08 208
0
0.03 0.12 0.02 0.04
MARD0123* NSR
MARD0125* NSR
MARD0126
74
0.65
1.22 0.48 594
0.09 0.05 0.48 0.11 0.29
MARD0127
73.46 0.59
2.35 0.56 1130 0.12 0.04 0.81 0.2 0.59
MARD0128
162
1
0.35 0.06 242
0
0.04 0.19 0.07 0.22
174.72 0.32
1.84 0.16 541
0.19 0.33 0.89 0.24 0.58
MARD0130
66.42 0.9
0.66 0.25 360
0.01 0.03 0.25 0.04 0.03
MARD0131
NSR
MARD0132
67.3
1.7
0.52 0.06 362
0.02 0.04 0.15 0.03 0.04
and 76
2.1
0.38 0.09 222
0.04 0.06 0.22 0.02 0.01
MARD0134* NSR
MARD0135
NSR
MARD0136
NSR
MARD0138* 228
1
0.4
0.02 300
n/a n/a n/a n/a n/a
MADD0140* NSR
MADD0143* 219.74 0.46
0.37 0.2
n/a
n/a n/a n/a n/a n/a
and 225
0.52
0.3
0.08 n/a
n/a n/a n/a n/a n/a
MADD0145* 256
2
0.74 0.1
n/a
n/a n/a n/a n/a n/a
MADD0146* 251.15 4.37
0.38 0.12 n/a
n/a n/a n/a n/a n/a
RESOURCE
incl 252.58 0.14
2.13 0.15 n/a
n/a n/a n/a n/a n/a EXTENSION
incl 254.8 0.72
1.17 0.54 n/a
n/a n/a n/a n/a n/a HOLES
MADD0148* 279
2
0.66 0.87 n/a
n/a n/a n/a n/a n/a
incl 279.82 0.28
1.06 0.47 n/a
n/a n/a n/a n/a n/a
MARC0099* 240
1
2.27 2.02 n/a
n/a n/a n/a n/a n/a
and 245
1
0.76 0.18 n/a
n/a n/a n/a n/a n/a
MARD0115
NSR
MARD0116
206.59 0.35
2.06 0.41 914
0.14 0.05 0.99 0.15 0.2
MARD0129* 200.27 2.18
1.55 1.28 917
n/a n/a n/a n/a n/a
incl 200.27 1.03
2.17 2.22 1300 n/a n/a n/a n/a n/a
incl 202.05 0.4
1.7
0.38 900
n/a n/a n/a n/a n/a
NSR = No Significant Result
* Holes marked by an asterisk were analysed at BCL Limited’s in-house mining laboratory
at the Selebi Phikwe Ni-Cu mine, with checks undertaken at the company’s Phoenix
Laboratory at the Tati Ni Mine. All other holes were assayed by SGS South Africa. Identical
Botswana Metals Limited
Mailing Address Suite 3, 16 Cotham Road, Kew, Victoria 3101
Registered Office Suite 506, Level 5, 1 Princess Street, Kew, Victoria 3101
P: +61 3 9855 1885; F: +61 3 9855 2885
Email info@botswanametals.com.au
www.botswanametals.com.au
ABN 96 122 995 073
QAQC protocols and sample handling/preparation techniques were employed across all
holes. QAQC analysis for all samples from each laboratory was deemed to be within
acceptable limits. The BCL Limited laboratory at Tati-Ni is SANAS accredited to the ISO
17025 international standard. The in-house laboratory at the Selebi Phiwke Ni-Cu mine is
currently un-certified. Assay techniques and detection limits are detailed in the Appendix 1
- JORC 2012 Table 1 below.
Patrick Volpe
Chairman
The information in this report that relates to Exploration Results is based on, and fairly
represents, information and supporting documentation compiled by BML staff on site and
provided to Mr Steve Groves who is a Member of The Australasian Institute of Mining and
Metallurgy. Mr Groves is a consulting geologist to BML and has previously been employed as
the Exploration Manager at BML. Mr Groves has sufficient experience which is relevant to the
style of mineralisation and type of deposit under consideration and to the activity which he is
undertaking to qualify as a Competent Person as defined in the 2012 Edition of the
‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore
Reserves’. Mr Groves consents to the inclusion in this report of the matters based on his
information in the form and context in which it appears.
APPENDIX 1 – JORC Code, 2012 Edition – Table 1
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
CRITERIA
Sampling
techniques
JORC Code Explanation
- Nature and quality of sampling (eg cut
channels, random chips, or specific
specialised industry standard measurement
tools appropriate to the minerals under
investigation, such as down hole gamma
sondes, or handheld XRF instruments, etc).
These examples should not be taken as
limiting the broad meaning of sampling.
- Include reference to measures taken to
ensure sample representivity and the
appropriate calibration of any measurement
tools or systems used.
- Aspects of the determination of
mineralisation that are Material to the Public
Report.
- In cases where ‘industry standard’ work has
been done this would be relatively simple
(eg ‘reverse circulation drilling was used to
obtain 1 m samples from which 3 kg was
pulverised to produce a 30 g charge for fire
assay’). In other cases more explanation
may be required, such as where there is
coarse gold that has inherent sampling
problems. Unusual commodities or
mineralisation types (eg submarine
Botswana Metals Limited
Commentary
Drill core is arranged neatly in 1m
core trays for HQ (typically
weathered rocks above the limit of
oxidation) and 1.5m core trays for
NQ core from competent rock.
Core is marked at every metre
along an orientation line.
Samples for independent
laboratory analysis are collected at
appropriate geological and or
mineralization boundaries and are
generally 1m or less in width.
Spot analysis using an XRF analyser
has been undertaken at every 10cm
interval
across
the
sulphide
mineralised intervals at t h e BML site
office in Tshokwe using a portable
XRF
analyzer
(INNOV-X
Delta
Premium). Industry standards and
blanks are used to monitor the
calibration of the instrument.
This information is used as a guide
to the potential Ni tenor of the
sulphides and primarily used to
determine
appropriate
sampling
intervals for independent Laboratory
Mailing Address Suite 3, 16 Cotham Road, Kew, Victoria 3101
Registered Office Suite 506, Level 5, 1 Princess Street, Kew, Victoria 3101
P: +61 3 9855 1885; F: +61 3 9855 2885
Email info@botswanametals.com.au
www.botswanametals.com.au
ABN 96 122 995 073
CRITERIA
JORC Code Explanation
nodules) may warrant disclosure of detailed
information.
Drilling
techniques
- Drill type (eg core, reverse circulation ,openhole hammer, rotary air blast, auger,
Bangka, sonic, etc) and details (eg core
diameter, triple or standard tube, depth of
diamond tails, face sampling bit or other
type, whether core is oriented and if so, by
what method, etc).
Drill
sample
recovery
- Method of recording and assessing
core and chip sample recoveries and
results assessed.
- Measures taken to maximise sample
recovery and ensure representative
nature of the samples.
- Whether a relationship exists between
sample recovery and grade and
whether sample bias may have
occurred due to preferential loss/gain
of fine/coarse material.
Logging
- Whether core and chip samples have been
geologically and geotechnically logged to a
level of detail to support appropriate
Mineral Resource estimation, mining
studies and metallurgical studies.
- Whether logging is qualitative or
quantitative in nature. Core (or
costean, channel, etc) photography.
- The total length and percentage of
the relevant intersections logged.
Botswana Metals Limited
Commentary
analysis
The holes referred to in this
release have been drilled by
Reverse Circulation or HQ
Diamond core through the
weathered rock and NQ Diamond
Core through unweathered rock
and the mineralized zones.
All core drilling is standard tube
method.
All competent core from the
current program is oriented using
a spear orientation method.
Historic holes have been either NQ
core, HQ core or Reverse
Circulation percussion methods.
The core is measured after every
run, and the results are compared
to the actual run to calculate core
recoveries. Core is handled with
care to avoid breakage and
crumbling. Core is washed and laid
onto holding core trays.
HQ core is used on friable ground,
rotation speeds and water
pressure are monitored to avoid
destroying the core. A soft rubber
mallet is used to drive out core
from the barrel.
No significant core loss or
recovery issues have been
recorded in the current drill
program.
All core will be photographed with
beginning, ending and
intermediate intervals clearly
marked on each box. Core will be
photographed prior to sampling or
any other procedures that may
disturb the initial orientation of the
core.
The core will be logged in
appropriate detail including
identification of lithology,
structure, alteration, mineralization
and other notable characteristics.
Percentages of core recovery and
Rock Quality Descriptor (RQD) will
be included in the log. The core
recovery will be calculated based
on each drill run (interval). The
RQD calculation will be based on
the total length of core sections
recovered that are greater than 2.0
Mailing Address Suite 3, 16 Cotham Road, Kew, Victoria 3101
Registered Office Suite 506, Level 5, 1 Princess Street, Kew, Victoria 3101
P: +61 3 9855 1885; F: +61 3 9855 2885
Email info@botswanametals.com.au
www.botswanametals.com.au
ABN 96 122 995 073
CRITERIA
JORC Code Explanation
Commentary
times the core diameter for each
drill run or interval.
Subsampling
techniques
and sample
preparation
- If core, whether cut or sawn and
whether quarter, half or all core taken.
- If non-core, whether riffled, tube sampled,
rotary split, etc and whether sampled wet
or dry.
- For all sample types, the nature, quality
and appropriateness of the sample
preparation technique.
- Quality control procedures adopted for
all sub-sampling stages to maximise
representivity of samples.
- Measures taken to ensure that the
sampling is representative of the in situ
material collected, including for instance
results for field duplicate/second-half
sampling.
- Whether sample sizes are appropriate
to the grain size of the material being
sampled.
Core is cut along the marked
orientation line, half core is
sampled for metallurgical test
work. The remaining half core is
cut for quarter core for lab
assaying and storage.
No field duplicates were taken.
For lab dispatch, blanks and
certified reference material are
inserted at every 5th sample for
QAQC.
Quality
of
assay data
and
laboratory
tests
- The nature, quality and appropriateness
of the assaying and laboratory
procedures used and whether the
technique is considered partial or total.
- For geophysical tools, spectrometers,
handheld XRF instruments, etc, the
parameters used in determining the
analysis including instrument make and
model, reading times, calibrations
factors applied and their derivation, etc.
- Nature of quality control procedures
adopted (eg standards, blanks,
duplicates, external laboratory checks)
and whether acceptable levels of
accuracy (ie lack of bias) and precision
have been established.
SGS South Africa
For all samples the analytical
techniques used a four acid digest
multi element suite with ICP/OES or
ICP/MS finish (25 gram or 50 gram
FA/AAS for precious metals). The
acids used are hydrofluoric, nitric,
perchloric and hydrochloric acids,
suitable for silica based samples. The
method approaches total dissolution
of most minerals. Total sulphur is
assayed by combustion furnace.
Platinum group elements and gold
were assayed by Fire Assay following
either Pb or NiS collection followed by
ICP-MS finish.
BCL Laboratory - Selebi Phikwe
All samples were assayed for Ni
and Cu via Aqua Regia and Atomic
Absorption Finish to a detection
limit of 0.01%
The laboratory at the Selebi Phiwke
Ni-Cu mine is currently un-certified.
BCL Laboratory – Tati Ni
All samples were assayed for Ni
and
Cu
via
XRF
(X-ray
Fluorescence) to a detection limit of
0.01% (Method PAS 10)
The BCL Limited laboratory at TatiNi is SANAS accredited to the ISO
17025 international standard.
Botswana Metals Limited
Mailing Address Suite 3, 16 Cotham Road, Kew, Victoria 3101
Registered Office Suite 506, Level 5, 1 Princess Street, Kew, Victoria 3101
P: +61 3 9855 1885; F: +61 3 9855 2885
Email info@botswanametals.com.au
www.botswanametals.com.au
ABN 96 122 995 073
CRITERIA
Verification
of
sampling
and
assaying
JORC Code Explanation
- The verification of significant
intersections by either independent or
alternative company personnel.
- The use of twinned holes.
- Documentation of primary data, data
entry procedures, data verification, data
storage
(physical and electronic)
protocols.
- Discuss any adjustment to assay data.
Location
of data
points
- Accuracy and quality of surveys used to
locate drill holes (collar and down-hole
surveys), trenches, mine workings and
other locations used in Mineral
Resource estimation.
- Specification of the grid system used.
- Quality and adequacy of
topographic control.
The data were recorded in
longitude/latitude WGS84.
The terrain is largely flat.
Down hole surveys are carried out
on all holes at 4m intervals using a
Flexit survey tool.
N/A – All historic drillholes have
been surveyed using DGPS with an
accuracy of <1m.
Data spacing
and
distribution
- Data spacing for reporting of
Exploration Results.
- Whether the data spacing and distribution
is sufficient to establish the degree of
geological and grade continuity appropriate
for the Mineral Resource and Ore Reserve
estimation procedure(s) and classifications
applied.
- Whether sample compositing has
been applied.
The current drilling is designed to
confirm previous drill results,
collect metallurgical samples and
step out form the know areas of
mineralization.
The drill hole spacing is deemed
appropriate for achieving the
objectives of the program and will
enable a maiden JORC 2012
compliant resource to be
calculated.
Orientation
of data in
relation to
geological
structure
- Whether the orientation of sampling
achieves unbiased sampling of
possible structures and the extent to
which this is known, considering the
deposit type.
- If the relationship between the drilling
orientation and the orientation of key
mineralised structures is considered to
have introduced a sampling bias, this
should be assessed and reported if
material.
Sample
security
- The measures taken to ensure sample
security.
Audits or
reviews
- The results of any audits or reviews of
sampling techniques and data.
Botswana Metals Limited
Commentary
The data were examined by the
senior personnel on site.
The primary data were audited and
verified and then stored in a SQL
relational data base.
No data have been adjusted.
The drill lines are oriented at
approximately 90 degrees to the
strike of both local and regional
geological trend.
Drill holes are at 55 degree or 60
angle and orientation of holes does
address the orientation of
structures.
Samples were taken and
transported by BML personnel to
the BML site office Prior to XRF
analyses the samples are locked in
the BML office.
The data were examined by the
independent consultant Mr Steve
Groves of Perth in Australia and
considered appropriate.
Mailing Address Suite 3, 16 Cotham Road, Kew, Victoria 3101
Registered Office Suite 506, Level 5, 1 Princess Street, Kew, Victoria 3101
P: +61 3 9855 1885; F: +61 3 9855 2885
Email info@botswanametals.com.au
www.botswanametals.com.au
ABN 96 122 995 073
Section 2 Reporting of Exploration Results
(Criteria in this section apply to all succeeding sections.)
CRITERIA
Mineral
tenement and
land
tenure
status
JORC Code Explanation
- Type, reference name/number, location
and ownership including agreements or
material issues with third parties such as
joint ventures, partnerships, overriding
royalties, native title interests, historical
sites, wilderness or national park and
environmental settings.
- The security of the tenure held at the
time of reporting along with any known
impediments to obtaining a licence to
operate in the area.
Exploration
done by other
parties
- Acknowledgment and appraisal of
exploration by other parties.
Geology
- Deposit type, geological setting and
style of mineralisation.
Drill
hole
Information
- A summary of all information material to
the understanding of the exploration
Botswana Metals Limited
Commentary
The results reported in this
announcement are located in
PL110/94 which is a granted
Exploration Licence held by African
Metals Limited, a 100% owned
subsidiary of Botswana Metals
Limited.
PL110/94 is subject to a Joint
Venture agreement with BCL
Limited.
PL110/94 was recently extended for
a further two years and is in good
standing.
Interpretations and conclusions in
this announcement refer in part to
results generated by historic
exploration work conducted by
Roan Selection Trust, Falconbridge,
Cardia Mining and Botswana Metals.
Botswana Metals considers all
previous exploration work to have
been undertaken to an appropriate
professional standard.
The Maibele North Prospect is
hosted within the Magogaphate
Shear Zone - a major geological
structural
feature,
generally
considered to mark the boundary
between the Archaean aged (>2.5
billion year old) Zimbabwean
Craton and the Limpopo Belt or
Limpopo Mobile Zone (LMZ). . The
nickel-copper deposits of Selebi
Phikwe lie within the northern part
of the Central Zone of the Limpopo
Mobile Belt, whilst the nickel
copper deposits of Phoenix,
Selkirk and Tekwane lie in the
Zimbabwean Craton. The Central
Zone of the LMZ comprises
variably
deformed
banded
gneisses and granitic gneisses,
infolded
amphibolites
and
ultramafic intrusions that that have
the potential to host Ni-Cu sulphide
mineralization.
Ni-Cu-PGE
mineralization at Maibele North and
Airstrip
copper
is
spatially
associated with an ultramafic
intrusion.
A table detailing collar coordinates
and relevant directional information
Mailing Address Suite 3, 16 Cotham Road, Kew, Victoria 3101
Registered Office Suite 506, Level 5, 1 Princess Street, Kew, Victoria 3101
P: +61 3 9855 1885; F: +61 3 9855 2885
Email info@botswanametals.com.au
www.botswanametals.com.au
ABN 96 122 995 073
CRITERIA
Data
aggregation
methods
JORC Code Explanation
results including a tabulation of the
following information for all material drill
holes:
o easting and northing of the drill
hole collar
o elevation or RL (Reduced Level –
elevation above sea level in
metres) of the drill hole collar
o dip and azimuth of the hole
o down hole length and interception
depth
o hole length.
- If the exclusion of this information is
justified on the basis that the information
is not Material and this exclusion does
not detract from the understanding of
the report, the Competent Person
should clearly explain why this is the
case.
- In reporting Exploration Results,
weighting averaging techniques,
maximum and/or minimum grade
truncations (eg cutting of high grades)
and cut-off grades are usually Material
and should be stated.
- Where aggregate intercepts
incorporate short lengths of high
grade results and longer lengths of
low grade results, the procedure used
for such aggregation should be stated
and some typical examples of such
aggregations should be shown in
detail.
- The assumptions used for any
reporting of metal equivalent values
should be clearly stated.
Botswana Metals Limited
Commentary
of the current drill program is
included in the release.
Where uneven sampling intervals
have contributed to an averaged
result, the result has been
calculated by a weighted average
technique that incorporates the
interval width of each contributing
sample.
A grade cut off of 0.3% and internal
dilution of <2m has been used in
the calculation of significant
intercepts.
No grade truncations have been
applied to the data.
The Maibele North ore is interpreted
to be genetically and mineralogically
similar to the ore treated at the
nearby Selebi Phikwe smelter where
current recovery grades in the
flotation plant average 84% for Ni
and 95% for Cu. Where Ni Eqv
calculations have been undertaken
on historic assay results it has been
assumed that similar high
recoveries will be achievable. The
current drill program has been
designed to assess the metallurgical
properties of the Maibele North
mineralisation and the indicative
recoveries will be published in due
course.
Given that that the Maibele North
project is currently the subject of a
Joint Venture with the nearby Mine
and Smelter operator, BCL, BML
assumes that no impediments in
recovering and selling the metals
contained in the deposit would exist
provided an viable economic
resource can be defined.
Mailing Address Suite 3, 16 Cotham Road, Kew, Victoria 3101
Registered Office Suite 506, Level 5, 1 Princess Street, Kew, Victoria 3101
P: +61 3 9855 1885; F: +61 3 9855 2885
Email info@botswanametals.com.au
www.botswanametals.com.au
ABN 96 122 995 073
CRITERIA
Relationship
between
mineralisation
widths
and
intercept
lengths
JORC Code Explanation
- These relationships are particularly
important in the reporting of
Exploration Results.
- If the geometry of the mineralisation
with respect to the drill hole angle is
known, its nature should be reported.
- If it is not known and only the down
hole lengths are reported, there should
be a clear statement to this effect (eg
‘down hole length, true width not
known’).
Diagrams
- Appropriate maps and sections (with
scales) and tabulations of intercepts
should be included for any significant
discovery being reported These should
include, but not be limited to a plan view
of drill hole collar locations and
appropriate sectional views.
Plan view and/or cross section maps
of the reported drill holes are
included in this announcement.
- Other exploration data, if meaningful and
material, should be reported including
(but not limited to): geological
observations; geophysical survey results;
geochemical survey results; bulk samples
– size and method of treatment;
metallurgical test
results; bulk density, groundwater,
geotechnical and rock characteristics;
potential deleterious or contaminating
substances.
There is no other material
exploration data that have not been
previously reported.
Balanced
reporting
Other
substantive
exploration
data
Further work
- Where comprehensive reporting of all
Exploration Results is not practicable,
representative reporting of both low and
high grades and/or widths should be
practiced to avoid misleading reporting of
Exploration Results.
- The nature and scale of planned
further work (eg tests for lateral
extensions or depth extensions or
large-scale step-out drilling).
- Diagrams clearly highlighting the areas
of possible extensions, including the
main geological interpretations and
future drilling areas, provided this
information is not commercially
sensitive.
Botswana Metals Limited
Commentary
The precise geometry of the
mineralization with respect to
the drill hole an
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