Yardilla Ommaney Project Assays - Supplementary with Table 1
Released
Released
Announcement PDF
20 MAY
25
JANUARY
2017 ASX
2017 ANNOUNCEMENT
ASX ANNOUNCEMENT
OMMANEY RC DRILLING RESULTS – Table 1
We refer to the ASX Announcement of 18 May 2017 re initial drilling results and provide a supplementary
announcement with a complete Table 1 Report.
As stated in the previous release the reported intervals of anomalous Gold (Au) and Tungsten (W) in recent drilling
at Ommaney are initial results from multi-element analysis of 5m composites that do not represent economic
intersections of metal but are indicative of the alteration system that MRG is pursuing at the prospect in its
exploration for gold mineralisation. Further analysis of the multi-element results from this program will determine
if any of these wider intervals of drilling are assayed in more detail (at 1m intervals), or if the multi-element assay
results reported to date are sufficient for MRG to vector future exploration programs at the prospect.
MRG Metals Limited ABN: 83 148 938 532 / ASX Code: MRQ
12 Anderson Street West, Ballarat VIC 3350 / PO Box 237 Ballarat VIC 3353
Phone: +61 3 5330 5800 / Fax: +61 3 5330 5890
www.mrgmetals.com.au / info@mrgmetals.com.au
TABLE 1 REPORT – OMMANEY REVERSE CIRCULATION DRILLING
SAMPLING TECHNIQUES AND DATA
Criteria
JORC Code explanation
Sampling
techniques
Nature and quality of sampling (e.g. cut channels, The sampling has been carried out using Reverse Circulation drilling (RC), using a
random chips, or specific specialised industry Schramm T685WS drilling rig. 5m spear composites of material from cyclone in
standard measurement tools appropriate to the addition to 1m cone split samples (and archives) were collected for each drill
minerals under investigation, such as down hole hole. Rock chips were logged onsite by a geologist and a record of chips was
gamma sondes, or handheld XRF instruments, collected and stored. A total of 7 holes were drilled in the program, at depths
etc). These examples should not be taken as ranging from of 132m to 366m below surface.
limiting the broad meaning of sampling.
Drilling
techniques
Drill
sample
recovery
Commentary
Include reference to measures taken to ensure The drill hole collars were located by handheld GPS. Sampling was carried
sample representation and the appropriate out under MRG Metals Ltd protocols and QAQC procedures as per current
calibration of any measurement tools or systems industry practice. See further details below.
used. of the determination of mineralisation
Aspects
RC chips were sampled by two methods:
that are Material to the Public Report.
1) A cone splitter was used to generate one, 3kg sample per metre of RC
drilling.
In cases where ‘industry standard’ work has
2) The remaining sample piles were composited to 5metre intervals (3kg
been done this would be relatively simple (e.g.
samples) using a plastic spear.
‘reverse circulation drilling was used to obtain
All 5m composites were submitted to the laboratory for full multi-element assay
1 m samples from which 3 kg was pulverised to
(including fire assay for Au,Pt,Pd), while 1m samples were stored. Results of
these assays determine anomalous intervals and are considered only indicative
produce a 30 g charge for fire assay’). In other
of metal content.
cases more explanation may be required, such
Where 5m composite assays indicate that Au may be elevated to economic
as where there is coarse gold that has inherent
levels, the 1m cone split samples will be submitted for fire assay. None of the
sampling problems. Unusual commodities or
intervals reported indicate Au grades that could be considered economic and the
mineralisation types (e.g. submarine nodules)
corresponding 1m samples have not been submitted for assay.
may warrant disclosure of detailed
information.
A Schramm T685WS Reverse Circulation drilling rig, operated by Drilling Australia
Drill type (e.g. core, reverse circulation, openPty Ltd using a face sampling bit was used to complete the program.
hole hammer, rotary air blast, auger, Bangka,
sonic, etc) and details (e.g. core diameter, triple
or standard tube, depth of diamond tails, facesampling bit or other type, whether core is
oriented and if so, by what method, etc).
Recoveries were assessed by visual estimate of the sample volume recovered for
Method of recording and assessing core
and chip sample recoveries and results
each metre interval drilled. Recovered sample volumes were within industry
assessed.
expectations. Samples recovery was reduced for the first 6 metres of each hole
due to losses from the hole annulus, and occasionally when the sample was wet
due to water inflows at drill rod changes. These reduced volume intervals are
recorded but are not considered to have significant effect on sampling over at
critical intervals.
Measures taken to maximise sample recovery and Sampling was undertaken using a combined cyclone and cone splitter. All of the
ensure representative nature of the samples.
sample recovered but not split to 1m samples was captured and used to generate
5m composites for multi-element assay.
None identified.
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 RC chips were geologically logged by MRG geologists at the drill site.
geologically and geotechnically logged to a level
of detail to support appropriate Mineral Resource
estimation, mining studies and metallurgical
studies. logging is qualitative or quantitative in Qualitative logging of RC chips (lithology, alteration mineralogy, sulphides,
Whether
nature. Core (or costean, channel, etc) weathering, etc) is designed to be supported by multi-element assay analysis. A
photography.
record of chips at 1m intervals has been collected and stored for future
reference.
The total length and percentage of the
relevant intersections logged.
All holes were logged in full.
MRG Metals Limited ABN: 83 148 938 532 / ASX Code: MRQ
12 Anderson Street West, Ballarat VIC 3350 / PO Box 237 Ballarat VIC 3353
Phone: +61 3 5330 5800 / Fax: +61 3 5330 5890
www.mrgmetals.com.au / info@mrgmetals.com.au
Criteria
Sub-sampling
techniques and
sample preparation
Quality of assay
data and
JORC Code explanation
Commentary
If core, whether cut or sawn and whether
quarter, half or all core taken.
No diamond core was generated by this drilling program.
If non-core, whether riffled, tube sampled, rotary
split, etc and whether sampled wet or dry.
RC chips were sampled by two methods:
1) A cone splitter was used to generate one, 3kg sample per metre of
RC drilling.
2) The remaining sample piles were composited to 5metre intervals
(3kg samples) using a plastic spear.
5m composites were submitted to the laboratory for full multi-element
assay (including fire assay for Au,Pt,Pd), while 1m samples were stored.
Results of these assays determine anomalous intervals and are considered
only indicative of metal content.
Where 5m composite assays indicate that Au may be elevated to
economic levels, the 1m cone split samples will be submitted for fire assay.
For all sample types, the nature, quality and
appropriateness of the sample preparation
technique.
Samples were prepared at the ALS laboratory in Perth. Samples were
dried, and the whole sample crushed and pulverised to 85% passing
75um, and a reference sub-sample of approximately. 200g retained. A
nominal 30g was used for the analysis.
Quality control procedures adopted for all subsampling stages to maximise representation of
samples.
RC cone splits and spear composite weights monitored at the rig to
ensure consistent sample sizes. At the laboratory entire samples were
pulverised to 85% passing 75um, a sample of the pulverised portion is
sent for assay.
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.
Field duplicate samples were taken at a rate of approximately 1 in 100
samples. For each 1m cone split interval a corresponding archive sample was
collected.
Whether sample sizes are appropriate to the
grain size of the material being sampled.
Sample sizes are considered appropriate to give an indication of
mineralisation given the particle sizes present in the rock and the
practical requirement to maintain manageable sample weights.
The nature, quality and appropriateness of the
assaying and laboratory procedures used and
whether the technique is considered partial or total.
Samples submitted to ALS laboratories were crushed and pulverised. Near
total digestion by multi-acid (including HF) followed by ICPAES and ICPMS
analysis of ALS’s ME-MS61 element suite. Au, Pt, Pd analysis by 30g fire
assay with ICP-AES finish.
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.
No geophysical tools were used in this program.
Nature of quality control procedures adopted (e.g.
standards, blanks, duplicates, external laboratory
checks) and whether acceptable levels of accuracy (i.e.
lack of bias) and precision have been established.
MRG QA/QC protocol for drilling is for Field Standards (Certified Reference
Materials) and Blanks inserted at a rate of 5 Standards and 4 Blanks per
100 single metre samples. Field duplicates were inserted at a rate of
approximately 1 in 100. For this program the relevant samples were part
of a total batch of 384 samples were submitted including QC samples. This
batch included 14 Blanks, 16 Standards, and 3 field duplicates. At the
Assay Laboratory additional Repeats, Lab Standards, Checks and Blanks are
analysed concurrently with the field samples. Results of the field and Lab
QAQC samples were checked on receipt of the assays. All assays met
QAQC protocols, showing no levels of contamination or sample bias.
laboratory tests
Verification of
sampling and
assaying
The verification of significant intersections by either
independent or alternative company personnel.
The use of twinned holes.
Twin holes were not employed during this part of the program.
Documentation of primary data, data entry
procedures, data verification, data storage
(physical and electronic) protocols.
Field logging was carried out on a Panasonic Toughbook computer. Logging
data is submitted electronically to the MRG Metals Ltd Victorian office.
Assay files are received electronically from the Laboratory. All data is stored
in a Company database system.
Discuss any adjustment to assay data.
No assay data was adjusted. The lab’s primary Au field is the one used
for analysis purposes.
MRG Metals Limited ABN: 83 148 938 532 / ASX Code: MRQ
12 Anderson Street West, Ballarat VIC 3350 / PO Box 237 Ballarat VIC 3353
Phone: +61 3 5330 5800 / Fax: +61 3 5330 5890
www.mrgmetals.com.au / info@mrgmetals.com.au
Criteria
Location of data
points
Data spacing and
distribution
Orientation of data
in relation to
geological structure
JORC Code explanation
Commentary
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.
Drill hole collars locations were determined by hand-held GPS, with an
accuracy of 5m in Northing and Easting. Down hole surveys were
completed every 30m where practicable during drilling. No follow-up
down hole directional surveying is planned for these holes.
Specification of the grid system used.
Grid projection is GDA94, Zone 51.
Quality and adequacy of topographic control.
Relative Levels are allocated to the drill hole collars using current
Digital Terrain Model’s for the area. The accuracy of the DTM is
estimated to be better than 10m.
Data spacing for reporting of Exploration Results.
Drilling was exploratory and designed to test anomalies identified at
surface and from previous drilling. No grid based drilling was undertaken.
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.
This drilling was exploratory in nature and there are no current plans to
utilise the results for Mineral Resource estimation purposes.
Whether sample compositing has been applied.
5m sample compositing using a spear method was used to generate samples
for multi-element analysis during this drilling program.
Drilling orientation was designed to intersect structures and dominant
foliation in the rock at as high angle as possible as determined from
structural analysis of oriented core in previous drilling nearby. The
reliability of this analysis of drilling orientation is reduced with distance
from diamond drill holes.
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.
The orientation of any mineralisation is not known at this stage of
exploration. Holes were designed to intersect zones of anomalous
geochemistry and alteration identified in previous drilling. The effect of
drill hole orientation on sampling bias cannot be determined with
reliability at this stage.
Sample security
The measures taken to ensure sample security.
Samples were sealed in appropriate containers and transported by
company vehicle to the Centurion Transport Depot in Kalgoorlie, WA. They
were then forwarded by ALS to their Laboratory in Perth for assaying.
Audits or reviews
The results of any audits or reviews of
sampling techniques and data.
No specific audits or reviews have been undertaken at this stage in the
program.
MRG Metals Limited ABN: 83 148 938 532 / ASX Code: MRQ
12 Anderson Street West, Ballarat VIC 3350 / PO Box 237 Ballarat VIC 3353
Phone: +61 3 5330 5800 / Fax: +61 3 5330 5890
www.mrgmetals.com.au / info@mrgmetals.com.au
SECTION 2: REPORTING OF EXPLORATION RESULTS
Criteria
JORC Code explanation
Mineral tenement
and land tenure
status
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 Acknowledgment and appraisal of exploration by
other parties
other parties.
Commentary
The drilling occurred within tenements E28/2338 held by MRG Metals
(Australia) Pty Ltd, a wholly owned subsidiary of MRG Metals Ltd. The
tenement is subject to Native Title granted to the Ngadju Group.
The tenement subject to this report are in good standing with the Western
Australian Department of Mines & Petroleum.
Previous exploration over the Project area has been undertaken by Sipa
Resources and Newmont. Where relevant, data from these earlier
surveys has been incorporated into MRG databases.
Geology
Deposit type, geological setting and style of
mineralisation.
Exploration is targeting orogenic gold deposits in the Albany-Fraser Belt
and re-worked margin of the Yilgarn.
Drill hole
Information
A summary of all information material to the
understanding of the exploration results including
a tabulation of the following information for all
Material drill holes:
Refer to tables included in the body of report.
easting and northing of the drill hole collar
e lev ation or RL (Re duce d Le ve l – e le v ation
Data aggregation
methods
abov e s ea lev e l in m e tr e s) of the dr ill hole
c ollar
dip and azimuth of the hole
down hole length and interception depth
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 Intervals are reported as down-hole length-weighted averages of grades. No
techniques, maximum and/or minimum grade
top cuts have been applied to the reporting of the assay results.
truncations (e.g. 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.
These relationships are particularly important in the
Relationship
between
reporting of Exploration Results.
mineralisation
widths and intercept If the geometry of the mineralisation with respect to
lengths
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
a clear(with
statement
this
Appropriate
maps
andbe
sections
scales)toand
effect
(e.g. ‘down
hole length,
true
notfor
known’).
tabulations
of intercepts
should
bewidth
included
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.
Balanced reporting 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.
Diagrams
No high-grade results were reported. Standard aggregation is indicative of
drilling intervals with anomalous elements (Au and W) from background
levels.
No metal equivalent values are used.
The geometry of any mineralisation is not known at this stage. All assay
results are based on down-hole lengths.
No significant discovery is being reported. Anomalous multi-element
geochemistry in assay results is being reported.
Intervals of anomalous multi-element geochemistry (including Au) are
reported. No samples returned high-grades of Au
MRG Metals Limited ABN: 83 148 938 532 / ASX Code: MRQ
12 Anderson Street West, Ballarat VIC 3350 / PO Box 237 Ballarat VIC 3353
Phone: +61 3 5330 5800 / Fax: +61 3 5330 5890
www.mrgmetals.com.au / info@mrgmetals.com.au
Criteria
JORC Code explanation
Commentary
Other substantive
exploration data
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.
Intervals of anomalous W are established to be correlated with strong sericitebiotite (+/- albite and pyrite) alteration zones first identified in diamond drilling.
These intervals typically do not have Au elevated from background levels.
Intervals of anomalous Au identified in RC drilling have a loose association
with quartz veining but not with the strong alteration observed in core.
Further work
The nature and scale of planned further work (e.g.
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.
Review of the multi-element geochemistry may be followed by assay of
1m intervals considered to be of interest.
Further exploration work at project is planned but the details of future
programs is still to be determined
Andrew Van der Zwan
Chairman
The information in this report, as it relates to Exploration Results is based on information compiled and/or reviewed by Mr. Benjamin
McCormack, who is a member of the Australian Institute of Geoscientists (AIG).
Mr. McCormack is a consultant to the Company and has the relevant experience with the mineralisation reported on 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. McCormack consents to the inclusion in the report of the matters based on the information in the form and context in which
they appear.
MRG Metals Limited ABN: 83 148 938 532 / ASX Code: MRQ
12 Anderson Street West, Ballarat VIC 3350 / PO Box 237 Ballarat VIC 3353
Phone: +61 3 5330 5800 / Fax: +61 3 5330 5890
www.mrgmetals.com.au / info@mrgmetals.com.au
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