CARDINAL RESOURCES LIMITED: Highest Grade Intercepts Returned Phase 1 Framework Drilling and Assaying Completed
(firmenpresse) -
-HIGHEST GRADE INTERCEPTS RETURNED PHASE 1 FRAMEWORK DRILLING AND ASSAYING COMPLETED
Cardinal Resources Limited (ASX: CDV) (Cardinal or the Company) is pleased to report that the Phase 1 Framework drilling programme has been completed and all assays results have been returned. As a result, work has begun on structural and geological modelling, and resource estimation in order to complete an inaugural resource estimate of the Namdini gold deposit (Namdini) in northeastern Ghana.
HIGHLIGHTS
- The highest grade intervals, returned to date, from Namdini have been intersected in the final group of framework drilling drill holes and include:
- NMRD451-776
o 94m (at) 4.53g/t (3.11g/t, cut to 20g/t)
o 13m (at) 2.15g/t
- NMRD407-710
o 97m (at) 1.62g/t
o 43m (at) 8.86g/t (2.86g/t, cut to 20g/t)
- Other outstanding intersections from the latest batch of drill hole assays include:
- NMRD367-700
o 41m (at) 1.93g/t
o 17m (at) 2.70g/t
o 40m (at) 2.01g/t
- NMRD379-766
o 18m (at) 2.82g/t (from surface)
o 38m (at) 2.16g/t
o 8m (at) 3.60g/t
- NMDD491-759
o 15m (at) 2.55g/t
o 30m (at) 2.34g/t
o 3m (at) 42.7g/t (3.11g/t, cut to 20g/t)
- NMRD445-732
o 16m (at) 1.84g/t
o 25m (at) 1.27g/t
- NMRD370-752
o 20m (at) 1.63g/t
o 28m (at) 1.54g/t
- NMDD489-779
o 44m (at) 1.57g/t
- NMRD418-766
o 23m (at) 2.55g/t
- NMDD346-733
o 16m (at) 3.15g/t
- NMRC480-798
o 39m (at) 1.76g/t (from surface)
- NMRD399-770
o 45m (at) 1.72g/t (from surface)
- NMDD368-731
o 41m (at) 1.22g/t
- The majority of the drill holes listed above have multiple intersections per hole and in total some 125 separate intersections have been returned in 20 holes, as detailed in Table 1.
- The Namdini deposit has been intersected by drilling over a strike length of 1000 metres, averages between 200 metres and 300 metres in width and has been traced to over 350 metres vertical depth over the majority of the deposit strike length and is open at depth and along strike to the south.
Cardinals Managing Director, Archie Koimtsidis said:
The completion of the first phase of the framework drilling programme has returned some of the highest value (gold grade multiplied by mineralised length) intervals intersected to date at Namdini. Further high grade intervals were returned from many of the outstanding drill holes from our Phase One drilling programme.
Namdini has been confirmed as a major new discovery, with gold mineralisation outlined over one kilometer of strike, and extending over 350 metres below the topographic surface with a mineralised corridor that it consistently greater than 250 metres to 300 metres wide. The orebody remains open at depth and to the south and we are encouraged by the exploration potential to the north.
We are excited to begin the next stage of the development of Namdini, with geological and structural modelling and resource estimation studies initiated. Our metallurgical testwork programme, based on over 350 kilograms of core is well advanced and we look forward to reporting the results when they are available.
Figure 1 shows the completed Phase 1 drilling and the location of the drill holes that are reported in this ASX announcement.
Dr. Julian Barnes, Cardinals Namdini Project Technical Manager said:
The database for the Phase I Framework Drilling programme has been finalised, enabling us to assess the deposit in detail in 3D. Structural and geological modelling has been carried out on the Namdini deposit by specialist consultants, Orefind and the 3D geological model is displayed in the figures in this ASX announcement.
Resource estimation studies have started, using specialist geostatistical consultants, EGRM. Survey control has been established for the entire Namdini project by independent surveyors, Sahara Mining Services, with the establishment of DGPS survey control points throughout the project area and DGPS surveying of drill hole collars. In addition, Sahara Mining Services also completed a detailed Unmanned Aerial Vehicle (UAV or drone) topographic and photographic survey surrounding the Namdini deposit.
The new survey control forms the basis for locational control for the Namdini project. Bulk density measurements are also being routinely collected from all drill core and to date more than 1400 bulk density measurements have been completed.
The additional drilling and structural and geological analysis has confirmed that Namdini is hosted in intensely deformed, strongly hydrothermally altered granite, volcaniclastics and diorite. Typically, both wide and multiple gold-mineralised intervals have been returned from the majority of holes drilled into the Namdini deposit.
Figure 2 shows a long section, of the drilling to date, with a view towards the east, parallel to the average strike of the Namdini deposit. The section shows the mineralised intersections, colour coded on average intersection gold grade, based on the reporting rule of a minimum 3 metres minimum down hole length, a maximum of 3 metres contiguous sub-grade and a lower cut off grade of 0.5 g/t., with the drill holes being reported in this ASX announcement highlighted with gold grade histograms and hole names. Figure 3 displays a long section, view east, of all intersections to date, colour coded on intersection grade and clearly shows that the Namdini deposit is open at depth and to the south.
http://www.irw-press.at/prcom/images/messages/2016/37512/16 Aug 2016 Highest Grade Intercepts Returned Phase 1 Framework Drilling and Assaying CompletePRcom.001.png
Figure 1: Namdini Phase 1 drilling programme (holes listed
in this ASX announcement
highlighted
with green collar symbols) - 200m grid & scale bar
http://www.irw-press.at/prcom/images/messages/2016/37512/16 Aug 2016 Highest Grade Intercepts Returned Phase 1 Framework Drilling and Assaying CompletePRcom.002.png
Figure 2: Long section - View East. Drill holes reported in this announcement are annotated
with drill
hole name and gold grade histograms. Intersections from previously reported holes displayed,
colour
coded by intersection gold grade (in grammes per tonne)
16 Aug 2016 Highest Grade Intercepts Returned Phase 1 Framework Drilling and Assaying
CompletePRcom
.003
Figure 3: Long Section - View East: All Namdini drill intersections to date colour coded
on intersection gold
grade
(grammes per tone). (100m grid)
Figure 4 shows a view of all Namdini drill intersections to date, superimposed on each other, viewed through the deposit towards N020E. The 250 metre to 300 metre average width of the mineralised corridor is clearly visible.
http://www.irw-press.at/prcom/images/messages/2016/37512/16 Aug 2016 Highest Grade Intercepts Returned Phase 1 Framework Drilling and Assaying CompletePRcom.004.png
Figure 4: View through the Namdini deposit intersections
towards
N020E
Figures 5 to 15 show sections on which the drill holes reported in this ASX announcement are located. The drill holes reported in this ASX announcement are annotated with down hole intersection length and uncut mean gold grade (in grammes per tonne), based on the intersection rules that have been used to calculate the mineralised length and weighted mean gold grade. Detailed listings of the sampled intervals, gold grades and summary lithology for drill holes NMRD451-776 and NMRD407-710 are included at the end of this ASX announcement.
http://www.irw-press.at/prcom/images/messages/2016/37512/16 Aug 2016 Highest Grade Intercepts Returned Phase 1 Framework Drilling and Assaying CompletePRcom.005.png
NOTE: Previously published intersection annotations omitt
ed for
clarity
Figure 5: Section L
(Scale bar: 40m, grid: 50m)
16 Aug 2016 Highest Grade Intercepts Returned Phase 1
Framework Drilling and Assaying
CompletePRcom
,006
NOTE: Previously published intersection annotations
omitted for
clarity
Figure 6: Section G
(Scale bar: 100m, grid : 50m)
http://www.irw-press.at/prcom/images/messages/2016/37512/16 Aug 2016 Highest Grade Intercepts Returned Phase 1 Framework Drilling and Assaying CompletePRcom.007.png
NOTE: Previously published intersection annotations
omitted for
clarity
Figure 7: Section A
(Scale bar: 100m, grid: 50m)
http://www.irw-press.at/prcom/images/messages/2016/37512/16 Aug 2016 Highest Grade Intercepts Returned Phase 1 Framework Drilling and Assaying CompletePRcom.008.png
NOTE: Previously published intersection annotations
omitted for
clarity
Figure 8: Oblique section parallel to NMRD367-700
(Scale bar: 100m, grid: 50m)
http://www.irw-press.at/prcom/images/messages/2016/37512/16 Aug 2016 Highest Grade Intercepts Returned Phase 1 Framework Drilling and Assaying CompletePRcom.009.png
NOTE: Previously published intersection annotations
omitted for
clarity
Figure 9: Section E
(Scale bar: 100m, grid: 50m)
16 Aug 2016 Highest Grade Intercepts Returned Phase 1
Framework Drilling and Assaying
CompletePRcom
.010
NOTE: Previously published intersection annotations
omitted for
clarity
Figure 10: Section H
(Scale bar: 100m, grid: 50m)
http://www.irw-press.at/prcom/images/messages/2016/37512/16 Aug 2016 Highest Grade Intercepts Returned Phase 1 Framework Drilling and Assaying CompletePRcom.011.png
NOTE: Previously published intersection annotations
omitted for
clarity
Figure 11: Section I
(Scale bar: 100m, grid: 50m)
16 Aug 2016 Highest Grade Intercepts Returned Phase 1
Framework Drilling and Assaying
CompletePRcom
.012
NOTE: Previously published intersection annotations
omitted for
clarity
Figure 12: Section J
(Scale bar: 100m, gird: 50m)
http://www.irw-press.at/prcom/images/messages/2016/37512/16 Aug 2016 Highest Grade Intercepts Returned Phase 1 Framework Drilling and Assaying CompletePRcom.013.png
NOTE: Previously published intersection annotations
omitted for
clarity
Figure 13: Section K
(Scale bar: 100m, grid: 50m)
http://www.irw-press.at/prcom/images/messages/2016/37512/16 Aug 2016 Highest Grade Intercepts Returned Phase 1 Framework Drilling and Assaying CompletePRcom.014.png
NOTE: Previously published intersection annotations
omitted for
clarity
Figure 14: Section 0
(Scale bar: 100m, grid: 50m)
http://www.irw-press.at/prcom/images/messages/2016/37512/16 Aug 2016 Highest Grade Intercepts Returned Phase 1 Framework Drilling and Assaying CompletePRcom.015.png
NOTE: Previously published intersection annotations
omitted for
clarity
Figure 15: Section R
(Scale bar: 40m, grid: 50m)
Cardinal technical staff maintains a set of standard procedures for both diamond drilling and reverse circulations drilling. For diamond drilling (which is completed using HQ core collection), the key aspects are that the holes are electronically surveyed every 30 metres down hole, all core runs are routinely oriented using a Reflex digital orientation instrument, core recovery is measured and geotechnical logging is done as the core is recovered at the rig site.
Back at the Bolgatanga office complex, the core is photographed wet and dry, and after logging onto digital data recorders, the core is cut such that a quarter HQ core sample, on a one metre sampling interval, is submitted to the laboratory, quarter core is retained for metallurgical sampling and half HQ core is retained for reference. The same sector of quarter core, relative to the core orientation mark is routinely sampled for assaying.
For RC drilling, samples are collected on a one metre interval using a multi-tier riffle splitter, duplicate field samples are routinely collected (one in 20), the cyclone is thoroughly cleaned on each rod change and the splitter is cleaned after each metre sample. The sample bag weights for each metre interval are routinely weighed, as are the split samples for submission to the assay laboratory and approximately 2.5 to 3 kilogramme chip samples are dispatched to the laboratory. Amongst the samples, a suite of internationally accredited and certified reference material along with blanks are included in the sample submission sequence. The standards cover the gold grade range expected at Namdini.
The individual sample bags for both core and drill chips are sealed at the Bolgatanga site office, and are grouped into tens for placement in a large plastic bag, which is, in turn, sealed. The assay laboratory provides sample transport from Bolgatanga, such that the chain of custody passes from Cardinal to the assay laboratory at the Bolgatanga sample logging facility.
Once sample bags and pulps are returned from the assay laboratory to Cardinals Bolgatanga facility, a representative suite of pulps, covering the entire range of both sample batches and gold grades are chosen for referee analysis at an accredited independent laboratory. As with the routine sample submission, a suite of international certified standards and blanks are inserted into the referee assaying pulp sequence.
Cardinal technical staff carry out routine analysis of the quality control data on receipt of assay results from the laboratory in order to determine if the batch of samples has passed industry standard levels for control samples. If the batch fails, the batch of assays is rejected and a re-assay request for the batch of samples is made to the laboratory.
For further information contact:
Archie Koimtsidis
Managing Director
Cardinal Resources Limited
P: +233 (0)26 190 5220
Skype: cardinal.archie
Competent Persons Statement
Information in this report that relates to the Namdini Project is based on information compiled by Mr. Paul Abbott, a full time employee of Cardinal Resources Limited, who is a Fellow of The Australasian Institute of Mining And Metallurgy and a Member of the Geological Society of South Africa. Mr. Abbott has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and the activities being reported upon 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 consents to the inclusion in this report of the statements based on the information in the form and context in which it appears.
Disclaimer
This ASX announcement (Announcement) has been prepared by Cardinal Resources Limited (ABN: 56 147 325 620) (Cardinal or the Company). It should not be considered as an offer or invitation to subscribe for or purchase any securities in the Company or as an inducement to make an offer or invitation with respect to those
securities. No agreement to subscribe for securities in the Company will be entered into on the basis of this Announcement.
This Announcement contains summary information about Cardinal, its subsidiaries and their activities, which is current as at the date of this Announcement. The information in this Announcement 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 high-risk 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 provide movements, regional infrastructure constraints, timing of approvals from relevant authorities, regulatory risks, operational risks and reliance on key personnel and foreign currency fluctuations.
Certain statements contained in this announcement, including information as to the future financial or operating performance of Cardinal Resources and its projects, are forwardlooking statements that:
- may include, among other things, statements regarding targets, estimates and assumptions in respect of mineral reserves and 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;
- are necessarily based upon a number of estimates and assumptions that, while considered reasonable by Cardinal Resources, 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 Resources disclaims any intent or obligation to update publicly any forwardlooking statements, whether as a result of new information, future events or results or otherwise. The words believe, expect, anticipate, indicate, contemplate, target, plan, intends, continue, budget, estimate, may, will, schedule and similar expressions identify forwardlooking statements.
All forward-looking statements made in this announcement 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.
No verification: Although all reasonable care has been undertaken to ensure that the facts and opinions given in this Announcement are accurate, the information provided in this Announcement has not been independently verified.
http://www.irw-press.at/prcom/images/messages/2016/37512/16 Aug 2016 Highest Grade Intercepts Returned Phase 1 Framework Drilling and Assaying CompletePRcom.016.png
http://www.irw-press.at/prcom/images/messages/2016/37512/16 Aug 2016 Highest Grade Intercepts Returned Phase 1 Framework Drilling and Assaying CompletePRcom.017.png
http://www.irw-press.at/prcom/images/messages/2016/37512/16 Aug 2016 Highest Grade Intercepts Returned Phase 1 Framework Drilling and Assaying CompletePRcom.018.png
http://www.irw-press.at/prcom/images/messages/2016/37512/16 Aug 2016 Highest Grade Intercepts Returned Phase 1 Framework Drilling and Assaying CompletePRcom.019.png
http://www.irw-press.at/prcom/images/messages/2016/37512/16 Aug 2016 Highest Grade Intercepts Returned Phase 1 Framework Drilling and Assaying CompletePRcom.020.png
http://www.irw-press.at/prcom/images/messages/2016/37512/16 Aug 2016 Highest Grade Intercepts Returned Phase 1 Framework Drilling and Assaying CompletePRcom.021.png
JORC CODE 2012 EDITION - TABLE 1
16 Aug 2016 Highest Grade Intercepts Returned From Framework Drilling
Section 1 - Sampling Technique and Data
Criteria JORC Code Explanation Commentary
Sampling teNature and quality of Nature and quality of
chniques sampling sampling is carried out
( under QAQC procedures as
eg cut channels, random per industry
chips, standards
or .
specific specialised indusRC sampling quality is
try standard measurement ensured through
tools inserting CRM standards
appropriate and blanks
to the minerals under
investigation, such as inserted every 22
down samples, with duplicates
also taken every 22
hole gamma sondes, or samples.
handheld XRF instruments,
HQ core sampling quality
etc). These examples is ensured through
should inserting CRM standards
not and blanks every 22
be taken as limiting the samples.
broad meaning of
sampling.
Include reference to Sample representivity is
measures taken to ensure ensured
sample
for:
representivity and the RC samples by collecting
appropriate calibration 1m samples from a
of any measurement tools cyclone, passing them
or through a
systems
used. 3-tier riffle splitter,
and taking duplicate
samplers every
22
nd sample.
HQ core through sampling
the various lithological
units at 1m
intervals
. The original system
used was to sample each
unit separately, but
after statistical
analyses of the results
found there was no
material grade variation
between the units, the
quarter core was sampled
at 1m intervals
throughout the drill
hole.
Aspects of the Mineralisation comprises
determination of gold associated with
disseminated pyrite &
mineralisation that are
Material to arsenopyrite.
the
Public Report.
In cases where industry Industry standard reverse
standard work has been circulation drilling was
done this would used to obtain 1m
be samples from which 3 kg
relatively simple (eg rev was
erse circulation drilling
was used to obtain pulverised to produce a
1 50 g
m samples from which 3 kg charge
was for fire assay.
HQ core is quartered,
pulverised to produce a 30 with the same quarter
g consistently sampled.
charge
for fire assay). In 1m samples are taken
other cases more irrespective of
explanation may be lithological units. The
required, quarter core samples
such weigh
as where there is coarse ~2
gold that has inherent kg, which are dried,
sampling then crushed and a split
problems. portion of <1.5 kg is
Unusual commodities or min
eralisation pulverised to produce a
types (eg submarine 50
nodules) may warrant g
disclosure of detailed m charge for fire assay.
information.
Drilling teDrill type (eg core, Reverse Circulation
chniques reverse circulation, drilling with a standard
openhole hammer, rotary tube,
air
blast, auger, Bangka, Remet 140mm Hard Face
sonic, (face-sampling) button
drilling
etc) and details (eg core bit.
diameter,
triple HQ core drilling with trip
or standard tube, depth le tube (near surface
of diamond tails, soft material) and
face-sampling bit or
other a standard tube and HQ
type, whether core is full hole chrome core
oriented and if so, by barrel in transition and
what method, fresh
rock
etc). .
Depth of diamond tails
varies according to
water table levels once
the RC samples are not
recovered
dry.
Core is orientated and
surveyed using Reflex
digital equipment.
Drill samplMethod of recording and Method of recording chip
e assessing core and chip and
recovery sample
recoveries core sample recoveries was
and results assessed.
to enter the relevant
data
on a hand held Motion
F5te Tablet PC using
a
set of standard
templates supplied by
Maxwell
Geoservices, Perth (Maxwel
l).
Chip sample recoveries
are assessed by weighing
1m samples from the
cyclone on a scale in
the field & comparing
with the theoretical
volume contained in a 1m
x 140mm diameter hole to
calculate %age
recoveries.
Core recovered from each
drill run is measured
and compared with the
drill run length drilled
to calculate %age core
recoveries.
Measures taken to maximise The measures taken to
sample recovery and maximize
ensure
representative nature of RC sample recovery are
the through a cyclone and a
samples. 3 tier riffle splitter.
Each 1m sample is passed
twice through the
splitter before sampling
to ensure maximum
homogenization of each
sample and to collect
an unbiased representative
sample to be
assayed.
The measures taken to
maximize
core sample recovery in
soft, near surface
materials are to use
triple tube with
suitable drilling fluids
to reduce any eroding of
the soft materials,
A standard tube with full
hole
chrome barrel is used in
transition and fresh
rock with drilling
additives to ensure
maximum performance from
the drill bits and to
keep each hole as
straight as possible to
maximize core
recoveries.
The core lifters are
checked after each drill
run to ensure no core to
be left down the hole
when pulling the full
core
tube.
These measures ensure
that the
lithologies drilled and
recovered are fully
representative of the in
situ
materials.
Whether a relationship No relationship is known
exists between sample to exist between sample
recovery and grade recovery and grade, and
and no sample bias may have
whether sample bias may occurred due to
have occurred due to preferential
preferential loss/g
loss/gain ain of any fine/coarse
of fine/coarse material. material due to the
above drill sample
recoveries in
place.
Logging Whether core and chip RC chips and HQ core sampl
samples have been es have been geologically
geologically
and and geotechnically logged
geotechnically logged to to a level of detail to
a level of detail to support appropriate
support future Mineral Resource
appropriate estimations.
Mineral Resource estimatio
n, mining studies and
metallurgical
studies.
Whether logging is Logging is qualitative
qualitative or and
quantitative in nature.
Core quantitative. Both RC
(or chips in trays and HQ
costean, channel, etc) core
photography. are photographed both in
dry
and wet form.
The total length and All holes are logged in
percentage of the full and to the total
relevant intersections length of each drill
logged. hole.
100% of each relevant
intersection is logged
in
detail.
Sub-samplinIf core, whether cut or HQ core is sawn,
g sawn and whether quarter, quartered and sampled,
techniques half or all with the same quarter
core always sampled to reduce
and sample taken. any
preparation bias
If non-core, whether The RC sub-sampling
riffled, tube sampled, technique is with a 3
rotary tier
split, etc and whether riffle splitter, and
sampled wet or sampled
dry. dry.
For all sample types, the RC and core sample
nature, quality and preparation
appropriateness of
the was undertaken at SGS
sample preparation Laboratories,
technique. Ouagadougou,
Burkina Faso and Tarkwa,
Ghana.
All preparation equipment
is flushed with barren
material
prior to the
commencement of sample
preparation. The entire
sample
is
dried, crushed to a
nominal 2mm using a Jaw
Crusher
, then <1.5 kg is split
using a Jones type
riffle. The reject
sample is retained in
the original sample bag.
The split is
pulverised in a LM2 grindi
ng
mill
to a nominal 85% passing
75 micron size fraction.
A
n approximate 200 gram sub
-sample
split is taken for fire
assay with
the pulverized residue
retained in a plastic
bag. The pulverized
split is fire assayed by
standard procedures with
an
AAS finish to 10 ppb
detection limit.
Both the remaining reject
and pulverized samples
are
returned and stored at
Cardinals
Bolgatanga premises.
Quality control procedures Quality control
adopted for all procedures adopted for
sub-sampling stages all sub-sampling stages
to to maximize
maximise representivity of
samples. representivilty of
samples
is to insert commercial
certified
reference
material (CRM) for
standards and in-house
blanks every 22
samples.
SGS Laboratory assays
duplicate samples of
each sample batch (20%)
so that
representivity of the
samples can be
checked.
Measures taken to ensure Measures taken to ensure
that the sampling is that the
representative of the
in RC sampling is
situ material collected, representative of the in
including for instance situ material collected
results for are to
field
duplicate/secondhalf take field duplicate sampl
sampling. es
every 22nd sample.
Approximately 3kg samples
from the splitter are
retained from each
sample
and
stored on the companys
premises for possible
reassay.
Measures taken to ensure
that the
core sampling is
representative
is to sample quarter core
at 1m intervals
irrespective of
lithologies due to the
similarities in grade of
the main
lithologies.
Results of field
duplicates, standards
and blanks are all
plotted graphically to
ensure that the results
of each assay batch are
acceptable.
Whether sample sizes are The sample sizes are
appropriate to the grain considered appropriate
size of the to give an accurate
material indication
being sampled. of gold mineralisation of
this
Namdini deposit.
Quality of The nature, quality and The pulverized chip or roc
Assay appropriateness of the k sample is weighed and
assaying mixed with flux and
data and la and fused using lead oxide
boratory laboratory procedures at
tests used and whether the 1
technique is ,100°C, followed by
considered cupellation of the
partial or total. resulting lead button
(Dore bead). The bead is
digested using 1:1
HNO
and HCl and the
resulting solution is
submitted for
analysis.
The digested sample
solution is aspirated
into the Flame Atomic
Absorption Spectrometer
(AAS),
aerosolised, and mixed
with the combustible
gas, acetylene and air.
The mixture is ignited
in a flame whose
temperature ranges from
2,100 to
2,800
C. During combustion,
atoms of the gold in the
sample are reduced to
free, unexcited ground
state atoms, which
absorb light. Light of
the appropriate
wavelength is supplied
and the amount of light
absorbed can be measured
against a standard
curve.
Results have a lower gold
detection limit of 10
ppb.
The AAS equipment is
calibrated with each
job.
The quality of the Fire
Assaying and laboratory
procedures are
considered to be
entirely appropriate for
this deposit
type.
The analytical technique
is industry standard
fire assay which is
considered to be a total
digest of
gold.
For geophysical tools, No hand held geophysical
spectrometers, handheld tools are
XRF instruments, used.
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 Sample preparation checks
procedures adopted for fineness are carried
( out by the laboratory
eg standards, blanks, dupli as
cates, external laboratory part of their internal
checks) and whether procedures to ensure the
acceptable grind size of 8590%
levels passing
of accuracy (ie lack of 75 micron is being
bias) and precision have attained
been . The grind size varies be
established. tween
87
99% passing 75 micron,
which
is
acceptable.
Each batch of 84 samples
has
10 laboratory checks (20%)
inserted for their
quality control
procedures. These
comprise
internal lab standards usi
ng certified reference
material
, blanks, replicates and
duplicates. Results
received are graphically
plotted for each assay
batch and show
acceptable levels of
accuracy and
precision.
Certified reference
materials, having a
range of values, and
in-house blanks are
inserted in
the
ratio of 1:22 into the
sample
stream
. No duplicate samples
are
taken
as quarter core samples
are submitted for fire
assay
.
Pulps are submitted to an
external laboratory for
checks on accuracy and
precision.
External laboratory
checks are done on a
three
monthly basis through Labo
ratories Quality Services
International (LQSI).
Recent LQSI checks of
Fire Assay analyses on
Low Grade Oxide Material
produced acceptable
levels
of
accuracy and precision.
VerificatioThe verification of The verification of
n significant intersections significant
of by either independent intersections by
sampling or either
and alternative company independent or
assaying personnel. alternative company
personnel has not
occurred.
The use of twinned holes. There has been no use of
twinned
holes.
Documentation of primary Primary data was
data, data entry collected on a hand held
procedures, Motion F5te Tablet PC
data using
verification, data a
storage (physical and set of standard
electronic) templates supplied by
protocols. Maxwell
Geoservices, Perth (Maxwel
l). Daily data was
synchronised and
digitally captured by
Maxwell
for validation and
compilation into Excel
and Access spreadsheets
and
stored on the Cardinal
servers located in
Bolgatanga, Ghana, West
Africa.
Discuss any adjustment to No adjustments were made
assay to assay
data. data.
Location ofAccuracy and quality of Accuracy of drill hole col
data surveys used to locate lar surveys
points drill holes (collar
and was done by DGPS (Sahara
downhole surveys), Mining Services,
trenches, mine workings
and other locations Birkina Faso).
used
in Mineral Resource
estimation.
Specification of the grid WGS84 Sector 30N, with
system local grid baseline at
used. 010 True North and
lines
at
50m to 100m intervals
and stations at
5
0m along lines.
Quality and adequacy of Survey control has been
topographic established for the
control. entire
Namdini project by
independent surveyors,
Sahara Mining Services,
with the establishment
of DGPS survey control
points throughout the
project area. Sahara
Mining Services also
completed a detailed
Unmanned Aerial Vehicle
(UAV or drone)
topographic and
photographic survey
surrounding the
Namdini deposit.
Data Data spacing for reporting Data spacing is 50-100m
spacing of Exploration (northing) and
and distri Results. 5
bution 0-100m (easting).
Whether the data spacing The data spacing and
and distribution is distribution is
sufficient to establish considered to be
the sufficient
degree of geological and to establish a degree of
grade continuity geological
appropriate for the
Mineral Resource and Ore and grade continuity
Reserve estimation appropriate for the
procedure(s) and Mineral Resource and Ore
classifications Reserve estimation
applied. procedure(s) and
classifications
applied for an
Exploration
Target
OrientationWhether sample compositing No sample compositing has
of has been been
data in applied. applied.
relation
to geologic
al
structure
Whether the orientation of The orientation of
sampling achieves sampling achieves
unbiased sampling unbiased sampling of
of possible structures as
possible structures and drilling is orientated
the extent to which this normal to the dip and
is known, foliation of the
considering deposit.
the deposit type. Structural measurements
confirm that the
foliation of the entire
deposit dips -60W so
that the sampling
achieves unbiased
sampling of the
lithologies.
If the relationship No orientation based
between the drilling sampling bias has been
orientation
identified in the data to
and the orientation of key date.
mineralised
structures is considered
to have introduced
a
sampling bias, this
should be assessed and
reported if
material.
Sample secuThe measures taken to The measures taken to
rity ensure sample ensure sample security
security. are through an
independent Ghanaian
security contractor.
Samples are stored at
Cardinals base camp
located at
Bolgatanga, Ghana, West
Africa under security
until
collected by SGS
Laboratories and
transported to their
Ouagadougou
laboratory in Burkina
Faso.
Audits or rThe results of any audits Sampling techniques are
eviews or reviews of sampling of industry standards.
techniques and Data is audited by
data. Maxwell
Geoservices (Perth), who
have not made any other
recommendations.
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 TenType, name/reference The Namdini Mining Licence
ement number, location and is located in NE Ghana.
and Land S ownership
tatus including Namdini Mining Limited
agreements or material (NML) holds the mining
issues with third parties
including licence. NML signed a
joint Heads of Agreement with
ventures, partnerships, Savannah Mining Ltd
overriding royalties, (Savannah) to provide
native title Mining Support
interests, services to NML.
historical sites, Savannah has signed a
wilderness or national Heads of Agreement with
park and environmental Cardinal Mining Services
settings. Ltd (CMS) to provide
Mining Support
services in relation to
the
Namdini Mining Licence.
The security of the tenure There are no known
held at the time of impediments to offer
reporting along with Mining Support
any services to
known impediments to
obtaining a Namdini Mining Limited
within the
licence to operate in the
area. Namdini Mining licence are
a.
ExplorationAcknowledgment and No previous systematic
appraisal of exploration
Leseranfragen:
" alt="Cyprium Mining announces start of production at the Potosi silver mine">
" alt="Saturn Minerals Inc. Acquires 158 Sections of Oil & Gas Exploration Permits">
Datum: 16.08.2016 - 15:27 Uhr
Sprache: Deutsch
News-ID 489438
Anzahl Zeichen: 77006
contact information:
Town:
Wien
Kategorie:
Business News
Diese Pressemitteilung wurde bisher 353 mal aufgerufen.
Die Pressemitteilung mit dem Titel:
"CARDINAL RESOURCES LIMITED: Highest Grade Intercepts Returned Phase 1 Framework Drilling and Assaying Completed
"
steht unter der journalistisch-redaktionellen Verantwortung von
Cardinal Resources Limited (Nachricht senden)
Beachten Sie bitte die weiteren Informationen zum Haftungsauschluß (gemäß TMG - TeleMedianGesetz) und dem Datenschutz (gemäß der DSGVO).
