Cardinal Reports Further Shallow High-Grade Gold at Ndongo East
(firmenpresse) - Cardinal Resources Limited (ASX/TSX: CDV) (Cardinal or the Company - http://www.commodity-tv.net/c/search_adv/?v=298772) is pleased to announce further intersections of shallow, highgrade gold mineralisation from a 15-hole, 883 metre Diamond Drill programme at the Ndongo East discovery located approximately 24km north and within hauling distance of the Companys Namdini Gold Project for which Cardinal declared an Ore Reserve of 5.1Moz (0.4Moz Proved and 4.7Moz Probable) on 02 April 2019 (Figure 1).
Highlights
New significant gold Previously reported gold
intersections intersections:
include: *
5.3m (at) 13.9g/t Au from 78m in 14m (at) 7.0g/t Au from 69m in
NDDD063 NDDD046
5.5m (at) 3.8g/t Au from 31m in 9m (at) 23.3g/t Au from 60m in
NDDD072 NDRC248
3.7m (at) 3.3g/t Au from 59m in 8.3m (at) 11.3g/t Au from 76m in
NDDD064 NDDD059
2.7m (at) 7.7g/t Au from 19m in 7m (at) 4.4 g/t Au from 14m in
NDDD068 NDRC216
2.0m (at) 18.3g/t Au from 59m in 6m (at) 12.6g/t Au from 2m in
NDDD066 NDRC275
5.2m (at) 4.5g/t Au from 60m in
NDDD060
3m (at) 29.3g/t Au from 45m in
NDDD036
* Refer to press releases dated 16 July and 29 August 2018, 23 January and 25 March 2019
- Results provide further confidence in the potential to define high grade satellite pits within hauling distance of the 5.1Moz open pit Ore Reserve at the Namdini Project
- Geophysical surveys and auger soil drilling programmes underway to identify additional drill targets within the much broader target area spanning approximately 7kms
Cardinals Chief Executive Officer / Managing Director, Archie Koimtsidis stated:
The Ndongo East discovery is particularly encouraging as the close spaced drilling has now delineated a well-defined mineralised zone over a strike length of 150 metres within the initial 450 metre mineralised discovery zone.
These new shallow high-grade results further increase our level of confidence to continue drilling along strike and at depth as we have only drilled down to approximately 80 metres vertically below surface.
Along strike from this initial 450 metre discovery zone, we are enthusiastic about the additional corridor of 750 metres of gold mineralisation previously intersected, which may provide a large number of additional shallow gold targets.
The Ndongo East discovery lies within a much larger target area which currently covers a strike length of approximately 7km. Ground geophysical surveys and auger soil drilling programmes are ongoing to evaluate this larger target area and are expected to generate further drill targets which could develop into high-grade satellite pits to provide additional ounces of gold for our developing Namdini Project which has a 5.1Moz Ore Reserve from surface located only 24km away.
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Figure 1: Cardinals Tenements comprising the Bolgatanga and Namdini Projects
Ndongo Prospecting License
The Ndongo Prospecting License covers an area of 295 km2 and is considered highly prospective for the discovery of economic gold mineralisation associated with the prolific Nangodi Shear Zone, a splay fault off the main regionalscale BoleBolgatanga Shear. Elsewhere, the Nangodi Shear Zone is spatially related to no fewer than four gold discoveries, including the Companys Namdini Gold Project with a 5.1Moz Ore Reserve, the Shaanxi Gold Mine, the historical Nangodi Gold Mine and the Youga Gold Mine in Burkina Faso, adjacent to the Ghanaian border. In addition, there are numerous historical shallow artisanal workings along many parts of this shear zone ~15 to 25 km north of the Namdini Gold Project (Figure 1).
Ndongo East Prospect
The Ndongo East Prospect is located within northeastsouthwest trending Birimian metavolcanics and metasediments. Gold mineralisation is developed mostly along dioritegranodiorite contact zones where competency contrasts create brittle fracturing allowing the ingress and precipitation of gold mineralising fluids (Figures 2, 3 and 4). The mineralised horizons contain variable chloritesilicacarbonatesericite alteration with sulphides (mainly pyrite with very minor arsenopyrite). Occasional visible gold grains and blebs have been observed in the core.
The gold mineralisation at Ndongo East is confined to specific gold - bearing, pyrite-silica-ankerite carbonate altered, shear zones which dip to the northwest. Drilling indicates two orientations to the mineralisation, namely a steeply-dipping northwest orientation and a shallower west-southwest plunging orientation.
A marker horizon comprising a very narrow, thinly bedded, black pyritic mudstone has been observed to occur at the base of the mineralised intersections within the metavolcanics (Figures 3, 4, 5 and 6) and could mark a hiatus in the continuation of volcanic activity in the area. Although this marker horizon appears to be unrelated to mineralisation within the metavolcanics, it will be a very useful marker as more shallow diamond drilling is completed further along strike.
Todays results include the follow-up systematic close spaced infill and step-out shallow diamond drilling from existing RC holes, for a total of 882.5m at Ndongo East along strike to better define the geometry, extent and continuity of the high-grade mineralised zones. These additional drill holes will determine the strike and depth extent of the mineralised system and will evaluate the structural components of the various lithological units (Figure 2).
12.5m step out diamond drilling from the initial section line E-E was carried out to ensure that plunges of the mineralised structures are understood before embarking on a wider spaced drill campaign along strike. The drilling has now delineated a well-defined mineralised zone over a strike length of 150 metres within the initial 450 metre mineralised discovery zone (Figure 2).
A full table of the results is included at the end of this report in Table 2 in Schedule 1.
The high-grade mineralised structures have been tested to a shallow depth of approximately 70m vertically below surface (Figures 3,4,5 and 6). The Company plans to steadily increase exploration at Ndongo East after evaluating further drill core and assay results to determine the strike and depth extents of the mineralised system as well as the structural components of the various lithological units. Furthermore, Infill auger drilling and Gradient Array IP (GAIP) geophysical surveys commenced over the Ndongo East deposit and its southern extension of ~7km strike length to delineate additional drill targets within this structurally controlled mineralised shear system.
Previously announced drilling intersected highergrade mineralised structures concentrated in the northern portion of the shear zone with coincident goldinsoil and geophysical targets defined to a strike length of 450m northeast-southwest (Figure 2). Subsequent RC drilling along fence lines further to the southwest along strike and at depth has proven encouraging with further highgrade intercepts within the mineralised structures. This indicates that the mineralised system is open along a northeastsouthwest strike and at depth with multiple mineralised intersections. The furthest drill fence to the southwest intersected 2m at 27.0g/t Au from 10m downhole in NDRC247 which suggests a strike potential up to 1.2km (refer to Cardinals ASX/TSX Press Release 29 August 2018 Cardinal Extends Ndongo East Discovery Strike Length).
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Figure 2: Ndongo East Prospect on geology showing NE-SW gold mineralised zone
Drill Section E+2 - E+2 (Figure 3) comprises drill holes NDDD062 and NDDD063. These two drill holes have intersected shallow gold mineralisation to a vertical depth of 72m with the mineralised halos between 5m to 6m wide with very encouraging grades. Refer to the full results in Table 2 in Schedule 1.
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Figure 3: Ndongo East Prospect Section E+2 - E+2
Drill Section E-2 - E-2 (Figure 4) comprises diamond drill hole NDDD064 as well as previously drilled RC drill holes NDRC262 and NDRC265 (reported in press release dated 29 August 2018). These three drill holes have intersected shallow gold mineralised halos with encouraging grades including 3.7m(at)2.2g/t Au from 59m, 4m(at)2.2g/t Au from 44m and 3m(at)2.2g/t Au from 83m respectively. Refer to the full results in Table 2 in Schedule 1.
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Figure 4: Ndongo East Prospect Section E-2 - E-2
Drill Section H+1 - H+1 (Figure 5) shows drill hole NDDD072 which intersected a shallow gold mineralised halo with encouraging grades of 5.5m(at)3.8g/t Au from 31m and previously announced drill holes. Refer to the full results in Table 2 in Schedule 1.
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Figure 5: Ndongo East Prospect Section H+1 - H+1
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Figure 6: Ndongo East Prospect Section D-1 - D-1
ABOUT CARDINAL
Cardinal Resources Limited (ASX/TSX: CDV) is a West African goldfocused exploration and development Company that holds interests in tenements within Ghana, West Africa.
The Company is focused on the development of the Namdini Project with a gold Ore Reserve of 5.1Moz (0.4Moz Proved and 4.7Moz Probable) and a soon to be completed Feasibility Study.
Exploration programmes are also underway at the Companys Bolgatanga (Northern Ghana) and Subranum (Southern Ghana) Projects.
Cardinal confirms that it is not aware of any new information or data that materially affects the information included in its announcement of the Ore Reserve of 3 April 2019. All material assumptions and technical parameters underpinning this estimate continue to apply and have not materially changed.
For further information contact:
Archie Koimtsidis
CEO / MD
Cardinal Resources Limited
P: +61 8 6558 0573
Alec Rowlands
IR / Corp Dev
Cardinal Resources Limited
P: +1 647 256 1922
Cannings Purple
Andrew Rowell or Peta Baldwin
E: arowell(at)canningspurple.com.au
E: pbaldwin(at)canningspurple.com.au
In Europe:
Swiss Resource Capital AG
Jochen Staiger
info(at)resource-capital.ch
www.resource-capital.ch
This release has been independently reviewed by CSA Global (Perth) for compliance with the JORC Code and Canadian NI 43-101/CIM requirements. CSA Global have not verified the results presented.
Competent Persons / Qualified Persons Statement
The information in this press release that relates to Exploration Results is based on information prepared by Mr. Paul Abbott who is a member of the Geological Society of South Africa. Mr. Abbott has more than five years experience relevant to the styles of mineralisation and type of deposits under consideration and to the activity which is being undertaken 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. Abbott is a full-time employee of Cardinal and holds equity securities in the Company. Mr. Abbott has consented to the inclusion of the matters in this report based on the information in the form and context in which it appears.
The information in this press release that relates to Exploration Results has been compiled and reviewed by Mr. Ekow Taylor, a Chartered Professional Geologist with the Australasian Institute of Mining and Metallurgy. Mr. Taylor has more than five years experience relevant to the styles of mineralisation and type of deposits under consideration and to the activity which is being undertaken 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 and as a Qualified Person as defined by the NI43-101 instrument. Mr. Taylor is a full-time employee of Cardinal and holds equity securities in the Company. Mr. Taylor has consented to the inclusion of the matters in this report based on the information in the form and context in which it appears.
Disclaimer
This ASX / TSX press release has been prepared by Cardinal Resources Limited (ABN: 56 147 325 620) (Cardinal or the Company). Neither the ASX or the TSX, nor their regulation service providers accept responsibility for the adequacy or accuracy of this press release.
This press release contains summary information about Cardinal, its subsidiaries and their activities, which is current as at the date of this press release. The information in this press release is of a general nature and does not purport to be complete nor does it contain all the information, which a prospective investor may require in evaluating a possible investment in Cardinal.
By its very nature exploration for minerals is a highrisk business and is not suitable for certain investors. Cardinals securities are speculative. Potential investors should consult their stockbroker or financial advisor. There are a number of risks, both specific to Cardinal and of a general nature which may affect the future operating and financial performance of Cardinal and the value of an investment in Cardinal including but not limited to economic conditions, stock market fluctuations, gold price movements, regional infrastructure constraints, timing of approvals from relevant authorities, regulatory risks, operational risks and reliance on key personnel and foreign currency fluctuations.
Except for statutory liability which cannot be excluded and subject to applicable law, each of Cardinals officers, employees and advisors expressly disclaim any responsibility for the accuracy or completeness of the material contained in this press release and excludes all liability whatsoever (including in negligence) for any loss or damage which may be suffered by any person as a consequence of any information in this Announcement or any error or omission here from. Except as required by applicable law, the Company is under no obligation to update any person regarding any inaccuracy, omission or change in information in this press release or any other information made available to a person nor any obligation to furnish the person with any further information. Recipients of this press release should make their own independent assessment and determination as to the Companys prospects, its business, assets and liabilities as well as the matters covered in this press release.
Forwardlooking statements
Certain statements contained in this press release, including information as to the future financial or operating performance of Cardinal and its projects may also include statements which are forwardlooking statements that may include, amongst other things, statements regarding targets, anticipated timing of the feasibility study (FS) on the Namdini project, estimates and assumptions in respect of mineral resources and anticipated grades and recovery rates, production and prices, recovery costs and results, capital expenditures and are or may be based on assumptions and estimates related to future technical, economic, market, political, social and other conditions. These forward - looking statements are necessarily based upon a number of estimates and assumptions that, while considered reasonable by Cardinal, are inherently subject to significant technical, business, economic, competitive, political and social uncertainties and contingencies and involve known and unknown risks and uncertainties that could cause actual events or results to differ materially from estimated or anticipated events or results reflected in such forwardlooking statements.
Cardinal disclaims any intent or obligation to update publicly or release any revisions to any forwardlooking statements, whether as a result of new information, future events, circumstances or results or otherwise after todays date or to reflect the occurrence of unanticipated events, other than required by the Corporations Act and ASX and TSX Listing Rules. The words believe, expect, anticipate, indicate, contemplate, target, plan, intends, continue, budget, estimate, may, will, schedule and similar expressions identify forwardlooking statements.
All forwardlooking statements made in this press release are qualified by the foregoing cautionary statements. Investors are cautioned that forwardlooking statements are not guarantees of future performance and accordingly investors are cautioned not to put undue reliance on forwardlooking statements due to the inherent uncertainty therein.
SCHEDULE 1
NDONGO LICENSE AREA DRILL RESULTS
Hole_IDDepthDip AzimuthGrid_ID mEast mNorth mRl
(m) (°) (°)
NDDD06272.1 -60 118 UTM WGS84 758,184.101,201,971.220.24
Zone 30 1
North 3
NDDD06390.3 -60 117 UTM WGS84 758,166.221,201,989.220.63
Zone 30 49
North
NDDD06469.1 -60 117 UTM WGS84 758,164.631,201,924.220.21
Zone 30 6
North 9
NDDD06666.4 -60 119 UTM WGS84 758,195.811,201,980.220.07
Zone 30 59
North
NDDD06790.2 -60 120 UTM WGS84 758,170.371,201,999.220.65
Zone 30 05
North
NDDD06827.5 -60 121 UTM WGS84 758,170.401,201,840.219.62
Zone 30 1
North 1
NDDD06945.2 -60 119 UTM WGS84 758,152.321,201,830.219.823
Zone 30 61
North
NDDD07068.6 -60 119 UTM WGS84 758,203.221,201,992.219.87
Zone 30 16
North
NDDD07132.5 -60 117 UTM WGS84 758,152.641,201,815.219.91
Zone 30 68
North
NDDD07250.0 -60 120 UTM WGS84 758,133.561,201,813.220.16
Zone 30 6
North 2
NDDD07359.5 -60 121 UTM WGS84 758,059.141,201,692.221.21
Zone 30 60
North
NDDD07659.6 -60 120 UTM WGS84 758,048.451,201,670.221.22
Zone 30 12
North
NDDD07969.0 -60 120 UTM WGS84 758,023.801,201,628.220.99
Zone 30 3
North 9
NDDD08128.3 -60 121 UTM WGS84 758,173.221,201,852.219.76
Zone 30 60
North
NDDD08254.2 -60 120 UTM WGS84 758,150.121,201,865.219.98
Zone 30 13
North
Table 1: MetaData Listing of Drill Holes
Hole_ID mFrom mTo mWidth Au g/t
NDDD062 36.3 39.3 3.0 1.4
NDDD062 53.3 54.3 1.0 0.6
NDDD062 61.5 66.5 5.0 1.6
NDDD063 8.0 9.0 1.0 0.8
NDDD063 78 83.3 5.3 13.9
NDDD064 8.0 9.0 1.0 0.8
NDDD064 59.1 62.8 3.7 3.3
NDDD066 34.0 35.0 1.0 0.5
NDDD066 36 37.3 1.3 0.6
NDDD066 58.9 60.9 2.0 18.3
NDDD067 13.0 14.1 1.1 0.9
NDDD067 25.0 26.0 1.0 1.6
NDDD067 70.1 71.1 1.0 1.2
NDDD067 79.0 82.0 3.0 2.2
NDDD068 18.8 21.5 2.7 7.7
NDDD069 29.0 31.7 2.7 2.9
NDDD070 58.4 60.9 2.5 2.3
NDDD070 66.9 67.9 1.0 1.3
NDDD071 19.0 23.6 4.6 1.4
NDDD072 31.3 36.8 5.5 3.8
NDDD073 14.0 15.0 1.0 1.1
NDDD073 37.1 40.0 2.9 1.2
NDDD076 11.0 12.0 1.0 0.6
NDDD076 23.0 24.0 1.0 0.6
NDDD076 42.0 46.0 4.0 1.2
NDDD079 12.0 13.0 1.0 0.7
NDDD079 15.0 16.0 1.0 0.8
NDDD079 53.5 56.5 3.0 2.5
NDDD081 25.0 26.5 1.5 2.4
NDDD082 29.0 30.0 1.0 0.6
NDDD082 45.7 47.1 1.4 1.1
Table 2: Summary of Individual Intersections
Notes:
-
- The intercepts were calculated, using a nominal 0.5 g/t Au cutoff, which approximates the cutoff for Reasonable Prospects of Eventual Economic Extraction (RPEEE) as per the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (JORC Code) 2012 and the Canadian Institute of Mining (CIM) 2010 guidelines, and internal dilution of no more than 3m at <0.5g/t Au.
APPENDIX 1
JORC CODE 2012 EDITION
TABLE 1 REPORTING OF EXPLORATION RESULTS
Section 1 - Sampling Technique and Data
Criteria JORC Code Explanation Commentary
Sampling Nature and quality of Reverse Circulation (RC)
techniques sampling (e.g. cut drill samples are
channels, random collected by using
chips, or specific
specialised industry downhole sampling
standard measurement hammers with nominal
tools appropriate to 140mm diameters.
the minerals under
investigation, such
as down Samples are collected
through a cyclone and
hole gamma sondes, or immediately weighed to
handheld XRF determine recoveries;
instruments, etc.). the entire sample is
These examples should then split by a
not be taken as threetier riffle
limiting the broad splitter. Two samples
meaning of (~2.53.0 kg) are
sampling. collected, one for the
laboratory, the other a
duplicate stored at the
Bolgatanga sample shed.
Diamond sampling is by
halfcore samples of HQ
core
size.
Include reference to Sampling is guided by
measures taken to Cardinal
ensure sample
Resources protocols and
representivity and the Quality Control
appropriate procedures as per
calibration of any industry
measurement tools or standard.
systems
used.
To ensure representative
sampling:
1m RC samples are
collected from a
cyclone, passing them
through a 3tier riffle
splitter, and taking
duplicate samples every
20th
sample.
HQ core samples are
taken
selectively through the a
ltered,
silicified and shear
zones, with minimum
0.5m and maximum 1.5m
lengths of
sample
.
Aspects of the The determination of
determination of mineralisation is based
mineralisation that on observed
are Material to the alterations
Public , silicification and shea
Report. ring of the
lithologies.
In cases where
industry standard RC samples are crushed
work has been done to 2mm, then a <1kg
this would be split sample is
relatively simple pulverised via LM2 Ring
(e.g. reverse Pulveriser to a nominal
circulation drilling 85% passing
was used to obtain 1 75µm.
m samples from which
3 kg was pulverised
to produce a 30 g Diamond drill samples
charge for fire are crushed to 2mm,
assay). In other and a <1kg split sample
cases, more is then pulverised via
explanation may be LM2
required, such as
where there is coarse Ring Pulveriser to a
gold that has nominal 85%
inherent sampling passing
problems. Unusual 75µm.
commodities or
mineralisation types A 200g subsample is
(e.g. submarine taken from the
nodules) may warrant pulverised material for
disclosure of analysis. A 50g charge
detailed weight is fused with
information. lithargebased flux,
cupelled and the prill di
ssolved in aqua
regia. The gold tenor is
then determined by
AAS.
Drilling Drill type (e.g. core, Reverse circulation
techniques reverse circulation, drilling uses sampling
openhole hammer, hammer of nominal 140mm
rotary air blast, diameter.
auger, Bangka, sonic,
etc.) and details
(e.g. core diameter, Diamond core drilling is
triple or standard completed with core
tube, depth of size of HQ with a
diamond tails, standard tube. Triple
facesampling bit or tube is used in
other type, whether
core is oriented and saprolite at the tops of
if so, by what the
method, hole
etc.). s. Core is orientated to
determine
both azimuth and dip usin
g digital Reflex ACT II
RD orientation
tool.
Drill holes are inclined
at 45 to 60 angles
for optimal zone
intersection. All drill
collars are surveyed
using Trimble R8 RTK
GPS with
downhole surveying every
30m using Reflex
digital surveying
instruments.
Drill Method of recording Diamond core recovery is
sample and assessing core logged and captured
recovery and chip sample into the database. The
recoveries and Method of recording
results chip and core sample
assessed. recoveries was to enter
the relevant data on a
handheld Motion F5te
Tablet PC using a set
of standard templates
supplied by Maxwell
Geoservices, Perth
(Maxwell).
Reverse circulation
sampling is good. RC
chips are logged,
weighed and captured to
the database. RC sample
recoveries are assessed
by weighing 1m samples
from the cyclone on a
scale in the field and
comparing with the
theoretical volume
contained in a 1m x
140mm diameter hole to
calculate an estimated
percentage sample
recovery.
Core recovered from each
drill run is measured
and compared with the
drill run length
drilled to calculate an
estimated percentage
core recovery. For core
drilling overall
recoveries are
excellent
with weighted average
recovery greater than
98%.
Measures taken to Measures taken include
maximise sample the use of bigger HQ
recovery and ensure core size diamond
representative nature drilling to maximise
of the recovery, having a
samples. geologist onsite to
examine core and core
metre
s marked and orientated
to check against the
drillers blocks and
ensuring that all core
loss is taken into
account.
At the reverse
circulation rig,
sampling systems are
routinely cleaned to
minimise the
opportunity for
contamination and
drilling methods are
focused on sample
quality. The measures
taken to
maximi
se RC sample recovery
are through a cyclone
and a 3tier riffle
splitter. Each 1m
sample is
passed twice through the
splitter before
sampling to ensure
maximum homogenisation
of each sample and to
collect an unbiased
representative sample
to be
assayed.
The reverse circulation
rigs have auxiliary
compressors and
boosters to help
maintain dry samples.
Where wet samples are
encountered, the
reverse circulation
drilling is
discontinued.
Whether a relationship No relationship is seen
exists between sample to exist between sample
recovery and grade recovery and grade, and
and whether sample no sample bias has
bias may have occurred due to
occurred due to preferential loss/gain
preferential of any fine/coarse
loss/gain of material due to the
fine/coarse acceptable sample
material. recoveries obtained by
the drilling methods
employed.
Logging Whether core and chip All drill holes are
samples have been fully logged. The
geologically and lithology, alteration
and geotechnical
geotechnically logged characteristics of core
to a level of detail are logged directly to
to support a digital format on a
appropriate Mineral Field Toughbook laptop
Resource estimation, logging system
mining studies and following procedures
metallurgical and using Cardinal
studies. geologic codes. Data is
imported into
Cardinals central
database after
validation in
LogChief.
In the opinion of the
Component Persons
a
ll geological logging is
to a level of detail to
support future Mineral
Resource
estimation.
Whether logging is Logging is both
qualitative or quantitative and
quantitative in qualitative.
nature. Core (or
costean, channel,
etc.) Both RC chips in trays
photography. and HQ core are
photographed both in
dry and wet
form.
The total length and All drill holes are
percentage of the logged in full and to
relevant the total length of
intersections each drill
logged. hole.
SubsamplingIf core, whether cut Orientation of core is
techniques or sawn and whether completed for all
and sample quarter, half or all diamond holes and all
preparation core are marked prior to
taken. sampling.
Longitudinally cut half
core samples are
produced using a Core
Saw with diamond
impregnated blades.
Samples are weighed and
recorded.
If noncore, whether RC samples are split
riffled, tube using a threetier
sampled, rotary riffle splitter. The
split, etc. and majority of RC samples
whether sampled wet are dry. On occasions
or that wet samples are
dry. encountered, they are
dried prior to
splitting with a riffle
splitter.
For all sample types, RC drill samples are
the nature, quality sorted and dried in an
and appropriateness oven for 8 hours and
of the sample weighed. They are then
preparation crushed to 2mm using a
technique. RSD Boyd crusher and a
<1.0kg split is taken.
The reject sample is
retained in the
original bag and
stored. The split is
pulverised in a LM2
Ring Pulveriser to a
nominal 85% passing
75µm and a 200g
subsample is used for
analysis.
Drill core samples are
sorted, dried at 105°C
for 4 hours and
weighed.
Samples are crushed
through
Jaques crusher to
nominal -10mm. A second
stage crushing is
through Boyd crusher to
nominal -2mm
and then split to
<1.0kg. The reject
sample is retained in
the original bag and
stored. The split is
pulverised in a LM2
Ring Pulveriser to a
nominal 85% passing
75%µm and approximately
200g subsample of the
pulverised material is
used for
fire assay.
All preparation
equipment is flushed
with barren material
prior to commencement
of the
job.
Quality control Cardinal Resources has
procedures adopted protocols that cover
for all subsampling the sample preparation
stages to maximise at the laboratories and
the collection and
representivity of assessment of data to
samples. ensure that accurate
steps are used in
producing
representative samples
for the analytical
process. Key
performance indices
include:
-Contamination index of
95% (that is at least
95% of blanks pass);
failures can only be
attributed to probable
minor laboratory
contamination.
-Crushed Size index of
95% passing 2 mm (1:50
sample
screened).
-Grind Size index of
85% passing 75 microns
(minimum 1:50 sample
screened).
-Check Samples
returning at worst 20%
precision at 90th
percentile and bias of
5% or
better.
Crusher and pulveriser
are flushed with barren
material at the start
of every
batch.
Measures taken to Measures taken to ensure
ensure that the that the RC sampling is
sampling is representative of the
representative of the insitu material
in situ material collected are to take
collected, including field duplicate samples
for instance results every 20th sample.
for field Approximately 3kg
duplicate/secondhalf samples from the
sampling. splitter are retained
from each sample and
stored at the companys
secured premises for
possible
reassay.
Measures taken to ensure
that the core sampling
is
representative is to
sample half core at
0.5m (minimum) to 1.5m (m
aximum)
intervals through the rec
ognisable
altered, silicified,
mineralised shear
zones
.
Results of field
duplicates for RC
samples
and Check Samples for
both RC and DD samples
are all evaluated to
ensure that the results
of each assay batch are
acceptable.
1:20 grind quality
checks are completed
for 85% passing
75
m criteria to ensure
the representativeness
of
su
b-samples.
Whether sample sizes Sample sizes are
are appropriate to considered appropriate
the grain size of the to the grain
material being size.
sampled.
Quality of The nature, quality All samples are analysed
Assay data and appropriateness for gold by lead
and of the assaying and collection fire assay
laboratory laboratory procedures of a 50g charge with
tests used and whether the AAS finish; the assay
technique is charge is fused with
considered partial or the lithargebased
total. flux,
cupelled and prill dissol
ved in aqua
regia with gold tenor
determined by flame
AAS.
Fire assay is
considered a total
assay
technique.
In the opinion of the
Competent Persons,
t
he analytical method is
considered appropriate
for the mineralisation
style and is of
industry standard.
For geophysical tools, No handheld geophysical
spectrometers, tools are
handheld XRF used.
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 Cardinals QAQC protocol
control procedures is considered industry
adopted (e.g. standard with
standards, blanks,
duplicates, external certified reference
laboratory checks) materials
and whether (
acceptable levels of CRMs) submitted on a
accuracy (i.e. lack regular basis with
of bias) and routine samples. The
precision have been CRMs having a range of
established. values and blanks are
inserted in the ratio
of 1:20. Duplicates are
taken at the riffle
splitter every
20th sample. No
duplicate samples are
taken from core
samples.
Pulps are submitted to a
secondary laboratory
for checks on
the accuracy and
precision of the
primary laboratory.
Coarse rejects are
submitted back to the
primary laboratory to
assess the adequacy of
the subsampling
process.
Laboratories QAQC
involves the use of
internal
lab
oratory standards using
certified reference
material and
blanks.
VerificationThe verification of Significant
of significant intersections have been
sampling intersections by verified by alternative
and either independent or company
assaying alternative company personnel.
personnel.
The use of twinned None of the drill holes
holes. in this report are
twinned.
Documentation of Primary data are
primary data, data captured on field tough
entry procedures, data book laptops using LogChi
verification, data ef
storage (physical and Software. The software
electronic) has validation routines
protocols. and data is then
imported onto a secure
central
database.
Discuss any adjustment The primary data is
to assay always kept and is
data. never replaced by
adjusted or interpreted
data.
Location of Accuracy and quality Initially drill hole
data of surveys used to collar coordinates
points locate drill holes are
(collar and down
obtained using
hole surveys), handheld Garmin
trenches, mine
workings and other GPSmap 64s GPS within
locations used in ±3m
Mineral Resource accuracy.
estimation.
Subsequently all drill
collars are accurately
surveyed using Trimble
R8 RTK
DGPS system within ±10mm
of accuracy (X, Y,
Z).
Coordinates are based on
three control stations
established at
Namdini by Sahara Mining
Services.
Accuracy and quality of d
ownhole
surveys of RC and DD dri
ll holes
are determined by using
Reflex
EzShot survey
instrument at regular
30m
intervals.
Specification of the Coordinate and azimuth
grid system are reported in UTM
used. WGS84 Zone 30
North.
Quality and adequacy Topographic control at Nd
of topographic ongo
control. was supplied by
Southern Geoscience
Consultants (Perth)
using satellite
imagery.
Data Data spacing for The RC drilling was
spacing reporting of carried out on variably
and exploration results. spaced fence lines (30m
distributio to 775m apart) with
n hole spacing of 50m
along lines testing
mineralisation to a
vertical depth of
approximately
100m and covering a
strike length of
1.25km
The DD drilling was
carried out
initially on a spacing
of 50m to 100m along
fence lines testing
mineralisation to a
vertical depth of
approximately
75m and to confirm the
mineralisation
intersected by the
previous RC
drilling.
Some step out diamond
drilling at 12.5m
spacing from the
initial high-grade
section lines was
carried out to ensure
that
plunges of the
mineralised structures
are understood before
embarking on a wider
spaced drill campaign
along
strike
Whether the data Exploration is at the
spacing and early stage, and as
distribution is such drill data spacing
sufficient to and distribution are
establish the degree insufficient to
of geological and establish geological
grade continuity and grade continuity
appropriate for the that are appropriate
Mineral Resource and for reporting Mineral
Ore Reserve Resources and Ore
estimation Reserves.
procedure(s) and
classifications
applied.
Orientation Whether sample No sample compositing
of data in compositing has has been
relation been applied.
to applied.
geological
structure
Whether the Drill holes are
orientation of orientated to achieve
sampling achieves intersection angles as
unbiased sampling of close to perpendicular
possible structures to the mineralisation
and the extent to as practicable based on
which this is known, ground magnetic
considering the modelling data and
deposit previous RC drilling.
type. Some sampling bias may
occur.
Systematic geological
mapping and structural
information from the
current diamond
drilling are required
to determine the true
orientation of dips and
structures of the
mineralisation.
If the relationship betNo significant
ween orientationbased
the drilling orientati sampling bias is known
on at this
and the orientation of time.
key mineralised structu
res
is considered to have
introduced
a sampling bias, this
should
be assessed and report
ed
if material.
Sample he measures taken to An independent Ghanaian
security ensure sample security contractor is
security. used to ensure sample
security.
The drilling contractor
is accountable for
drill core and RC chip
production at the drill
site. Final delivery
from the drill site to
the laydown area within
the core yard is
managed by Cardinal.
The core yard
technicians, field
technicians and
Geologists ensure the
core and chips are
logged, prepared and
stored under security
until
conveyed to a nearby
accredited sample
preparation
laboratory by Cardinal.
At the time of sample del
ivery
at the laboratory, a
signoff process
between Cardinal and
the laboratory ensures
that samples and
paperwork
correspond
and samples are
receipted against the
Cardinal submission
sheets
. The sample preparation
laborator
y is responsible for the
samples from the time
of collection from
Cardinal until
pulps and rejects are
collected
a
nd checked by Cardinal
Geologists.
Two pulp samples are
produced
:
· one pulp dispatched by
Cardinal to the
appropriate laboratory
for
assay;
· the duplicate pulp and
reject
stored by Cardinal in a s
ecure storage
facility
for possible re-assay
or other
testwork.
Audits or The results of any Sampling techniques are
reviews audits or reviews of of industry standards.
sampling techniques
and
data.
Section 2 - Reporting of Exploration Results
(Criteria listed in section 1 will also apply to this section where relevant)
Criteria JORC Code Explanation Commentary
Mineral Type, name/reference The Ndongo Exploration
Tenement number, location and Permit is on PL9/22,
and Land ownership including PL9/13
Status agreements or material , PL9/19 and PL9/36 licen
issues with third ses over an area of 295
parties including joint sq. km located in the
ventures, partnerships, NorthEast region of
overriding royalties, Ghana.
native title interests,
historical sites,
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