Nickel Sulphides Carr Boyd
Released
Released
Announcement PDF
1 November 2021
ASX ANNOUNCEMENT
Multiple Intersections of Massive Sulphide at T5
HIGHLIGHTS
The first 60m south step-out diamond hole CBDD057 has intersected three massive to
disseminated nickel-copper sulphide zones over a significant length of the hole (Table 1)
Upper zone - 34.34m(1) of massive, highly disseminated and disseminated sulphides
from 398m down hole (Figure 1 Left)
Lower zone - 20.95m(1) of massive, semi-massive, highly disseminated and
disseminated sulphides from 500.4m down hole (Figure 1 Centre)
Confirmed new zone – 3.50m(1) of massive, semi-massive and stringer sulphides from
567.2m on the T5-Broonhill basal contact (Figure 1 Right)
The upper two zones correspond with the south plunge of the Upper and Lower T5 Conductors
The lowest intersection corresponds to a new massive sulphide zone that is emerging below T5
previously blind to downhole geophysics
(1) Downhole intersection quoted, uncertainty around the orientation of the basal contact makes true width estimate inacurate.
Figure 1: Massive and highly-disseminated sulphide from the Upper, Lower and new zones respectively in CBDD057.
Estrella Resources Limited (ASX: ESR) (Estrella or the Company) is pleased to announce multiple thick
nickel-copper sulphide intersections in the first 60m southern step-out diamond drillhole CBDD057.
_________________________________________________________________________________
Office Address London House, Level 11, 216 St Georges Terrace, PERTH WA 6000 Postal Address GPO Box 2517, PERTH WA 6831
Phone +61 8 9481 0389 Fax +61 8 9463 6103
Email info@estrellaresources.com.au
Three zones of nickel-copper sulphides were intersected over the last 170m of the drill hole. All three zones
contained significant widths of massive sulphides with accompanying globular, highly disseminated,
disseminated, stringer and cloud sulphides. Geology details and visual estimates are presented Table 1.
Managing Director Chris Daws commented: “It goes without saying that what is emerging at our drilling at
Carr Boyd is very significant. It seems every time we put another exploration hole down, we hit more nickelcopper sulphides and on this occasion a completely blind massive nickel-copper sulphide intersection
below T5. This hit appears to sit in-line with a distant northern and highly conductive EM plate which is as
yet untested. We currently have a highly fertile nickel sulphide contact, open at depth, and open over more
than 2km’s of strike with the most recent discovery announced at Broonhill giving us further confidence that
we can expect to see a lot more as we continue our exploration efforts. I have always believed that Carr
Boyd could deliver a world class orebody and its not disappointing me at this stage. I look forward to what
is uncovered next.”
As can be seen in Figure 2, the vectored exploration model developed during the close-spaced, Phase 3
drilling at T5 allows for multiple sulphide lodes that are formed when magma turbulence partially remobilises
basal sulphides further down the Broonhill-T5 contact. These zones were noticed to overlap one another
on drill sections to the north, explaining the current multiple intersection whilst still drilling oblique to the dip
of mineralisation.
The upper two sulphide zones intersected relate directly to the Upper and Lower T5 Conductors identified
by downhole electromagnetics (DHEM) during Phase 2. An additional massive sulphide basal contact
zone was also intersected below T5 and correlates directly to an intersection obtained by CBDD042A from
which there was no DHEM response at the time (Figure 3). It is postulated that the DHEM response from
this zone, is being masked by the overlapping Lower T5 Conductor.
Figure 2 Left: Cross section through CBDD057 Right: Cross Section 100m to the North. The vectored exploration model
incorporating magma flow direction predicts multiple zones of sulphide occurrences as observed in core during
the Phase 3 drilling.
A deeper DHEM platform hole has been pre-collared and is in the process of being drilled to achieve DHEM
coverage below the new zone. This hole will target the basal contact some 100m to 150m below the lowest
massive sulphide intersection in CBDD057 (Figure 3Figure 4). It is hoped that this platform hole will resolve
DHEM responses from additional massive sulphides that may lie further down the basal contact below the
CBDD042A and CBDD057 massive sulphide intersections as predicted by the vectored exploration model
in use.
CSIRO at Carr Boyd
Three nickel experts from the CSIRO, including Professor Steve Barnes will spend three days at Carr Boyd
(starting today). Together with ESR Geologists, they will be initiating studies on the age, formation and
characterisation of the Carr Boyd Igneous Complex as well as studying the formation and modes of
mineralisation at T5, Broonhill, Tregurtha and the historical Carr Boyd Mine. Apart from Estrella’s approach
in 2021, very little work of this nature has been conducted at Carr Boyd since the early 1970’s.
The information gathered will aid in Estrella’s vectored exploration model and risk-based approach as the
Company expands Phase 4 exploration and begins planning Phase 5 after the Broonhill Massive Sulphide
Discovery last week (refer to ASX announcement dated 27th October 2021).
The Broonhill Discovery (location shown in Figure 4) has significantly increased the likelihood for more
massive sulphide intersections on the Broonhill-T5 basal contact. With 2km of the basal contact explored
by ESR to a depth of 280m, there is still another 2km of this contact to be drilled during Phase 4. Phase 5
will test any Phase 4 anomalous or intersection results with diamond core and DHEM, down to a depth of
900m (potentially deeper depending on initial results) through a staged approach.
There are also several other basal contact pyroxenites with assimilated sulphides, together with BroonhillT5 totalling 30km of strike (Figure 5Figure 3).
The Company’s vectored exploration model will continue to be developed and, in partnership with the
CSIRO’s world-class expertise, will be essential to explore the vast potential within the Carr Boyd Igneous
Complex in an effective and timely manner.
Figure 3: Long section of the T5 Discovery mineralisation in relation to the three intersections in CBDD057
Figure 4: 3D rendering of the Basal Contact showing the CBDD057 intersection down plunge of the T5 Discovery in relation
to the entire Broonhill – T5 prospective basal contact and Phase 4 Significant Intersections to date.
Figure 5: Plan view of the regional magnetics and the location of the Basal Contact, in particular A-B-C location points of
the 3D rendered surface.
Table 1: CBDD057 Intersection Geology and Visual Sulphide Estimates2
Hole ID &
Zone
Depth
From
Depth
To
365.28
382.10
383.78
CBDD057 396.00
398.00
Upper 400.80
406.85
Zone 412.43
34.34m 412.72
413.96
414.91
418.42
432.34
435.79
442.92
496.77
500.40
501.25
501.70
502.20
502.50
503.10
CBDD057
503.90
Lower 505.60
507.70
Zone 508.60
20.95m 509.30
516.00
517.50
518.43
519.80
521.15
521.35
521.60
526.00
567.20
CBDD057
567.73
New 568.00
568.37
Zone 569.00
3.50m
570.40
570.70
382.10
383.78
396.00
398.00
400.80
406.85
412.43
412.72
413.96
414.91
418.42
432.34
435.79
442.92
496.77
500.40
501.25
501.70
502.20
502.50
503.10
503.90
505.60
507.70
508.60
509.30
516.00
517.50
518.43
519.80
521.15
521.35
521.60
526.00
567.20
567.73
568.00
568.37
569.00
570.40
570.70
EOH
Interval
Sulphide Texture
16.82
1.68
12.22
2.00
2.80
6.05
5.58
0.29
1.24
0.95
3.51
13.92
3.45
7.13
53.85
3.63
0.85
0.45
0.50
0.30
0.60
0.80
1.70
2.10
0.90
0.70
6.70
1.50
0.93
1.37
1.35
0.20
0.25
4.40
41.20
0.53
0.27
0.37
0.63
1.40
0.30
Barren Pyroxenite
Disseminated
Barren Pyroxenite
Cloud
Disseminated
Cloud
Highly Disseminated
Disseminated
Globular
Massive
Highly Disseminated
Highly Disseminated
Dolerite Dyke
Feldspar Porphyry
Barren Pyroxenite
Cloud
Disseminated
Cloud
Globular
Disseminated
Globular
Cloud
Disseminated
Cloud
Disseminated
Highly Disseminated
Disseminated
Highly Disseminated
Semi-Massive
Highly Disseminated
Massive
Stringer
Cloud
Feldspar Porphyry
Barren Pyroxenite
Disseminated
Semi-Massive
Massive
Semi-Massive
Massive
Stringer
Basal Contact Basalt
Visual
Sulphide
Estimation
Visual
Pentlandite
Estimation
Visual
Chalcopyrite
Estimation
5%
1%
0.5%
1%
2%
1%
10%
2%
30%
70%
20%
10%
Tr
0.5%
Tr
2%
0.5%
8%
10%
5%
3%
Tr
0.5%
Tr
1%
0.5%
2%
4%
4%
3%
8%
1%
20%
2%
20%
1%
5%
1%
3%
10%
7%
10%
60%
10%
85%
15%
1%
2%
Tr
5%
Tr
5%
Tr
1%
Tr
1%
2%
2%
2%
15%
2%
20%
1%
Tr
2%
Tr
10%
1%
10%
Tr
2%
Tr
1%
5%
2%
2%
15%
2%
20%
10%
Tr
2%
60%
70%
60%
80%
15%
1%
12%
20%
12%
23%
7%
0.5%
12%
10%
12%
11%
7%
2 In relation to the disclosure of visual mineralisation, the Company cautions that visual estimates of sulphide abundance should never
be considered a proxy or substitute for laboratory analysis. Laboratory assay results are required to determine the widths and grade
of mineralisation. The Company will update the market when laboratory analytical results become available.
The Board has authorised for this announcement to be released to the ASX.
FURTHER INFORMATION CONTACT
Christopher J. Daws
Managing Director
Estrella Resources Limited
+61 8 9481 0389
info@estrellaresources.com.au
Media:
David Tasker
Managing Director
Chapter One Advisors
E: dtasker@chapteroneadvisors.com.au
T: +61 433 112 936
Competent Person Statement
The information in this announcement relating to Exploration Results is based on information compiled by Steve Warriner,
who is the Exploration Manager of Estrella Resources, and a member of The Australasian Institute of Geoscientists. Mr.
Warriner has sufficient experience relevant to the style of mineralisation and type of deposit under consideration, and to
the activity he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the “Australasian Code
for Reporting of Exploration Results, Mineral Resource and Ore Reserves”. Mr. Warriner consents to the inclusion in the
report of the matters based on his information in the form and context in which it appears.
Table 2: Drill hole collar details
Hole ID
Final Depth
Easting
Northing
RL
Dip
Azimuth
Status
CBDD057
606.7
367370
6673580
431.9
-69.5
258
Completed
APPENDIX 1 JORC TABLE 1 - JORC CODE, 2012 EDITION – TABLE 1
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
Criteria
JORC Code explanation
Commentary
Sampling
Nature and quality of sampling (e.g. cut DD core samples have been half cut with an automatic
techniques
channels, random chips, or specific
core saw.
specialised
industry
standard 0.25m-1.1m samples are collected from the core trays as
measurement tools appropriate to the
marked out by the supervising geologist.
minerals under investigation, such as A handheld XRF tool was used to verify the mineralisation
down hole gamma sondes or handheld
with samples reporting >0.3% Ni in disseminated zones
XRF
instruments,
etc.).
These
and >1% Ni in the matrix sulphide zones.
examples should not be taken as XRF results have not been reported and are used as a
limiting the broad meaning of sampling.
logging/sampling verification tool only.
Include reference to measures taken to
ensure sample representivity and the
appropriate
calibration
of
any
measurement tools or systems used.
Core is cut and sampled to ensure the sample is
representative and no bias is introduced. Cutting of
specific, banded or stringer sulphide zoned core is done
orthogonal to the banding to ensure there is no bias.
Aspects of the determination of
mineralisation that are material to the
Public Report.
Determination of mineralisation has been based on
geological logging, visual sulphide estimates and
confirmation using a pXRF machine. Samples were
dispatched to an accredited laboratory for multi-element
analysis.
.
Diamond core drilling was used to obtain 3m length
samples from the core barrel which are then marked in
one meter intervals, based on core block measurements.
Samples are selected based on geological logging
boundaries or on nominal meter marks.
Collected samples weigh a nominal 2-3 kg (depending on
sample length).
Samples have been dispatched to an accredited
commercial laboratory in Perth for analysis.
Samples are being analysed using a 4-acid digest, MEICP for 33 elements and ore zone samples are also being
tested for Au & PGE elements using ICP analysis.
In cases where ‘industry standard’ work
has been done this would be relatively
simple (e.g. ‘reverse circulation drilling
was used to obtain 1 m samples from
which 3 kg was pulverised to produce a
30g charge for fire assay’). In other
cases more explanation may be
required, such as where there is coarse
gold that has inherent sampling
problems. Unusual commodities or
mineralisation types (e.g. submarine
nodules) may warrant disclosure of
detailed information
Drilling
techniques
Drill sample
recovery
Drill type (e.g. core, reverse circulation,
open-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).
Method of recording and assessing
core and chip sample recoveries and
results assessed.
Measures taken to maximise sample
recovery and ensure representative
nature of the samples.
Whether a relationship exists between
sample recovery and grade and
whether sample bias may have
occurred due to preferential loss/gain of
fine/coarse material.
Drilling was undertaken using NQ2 sized drill core.
Holes have been collared with mud rotary from surface,
HQ rough cored to top of fresh rock then NQ2 cored to
EOH.
Core recovery was recorded by the field crew and verified
by the geologist.
RQD measurements were digitally recorded to ensure
recovery details were captured.
Sample recovery in all mineralised zones is high with
negligible core loss observed.
Diamond core drilling is the highest standard and no
relationship has been established between sample
recovery and reported grade as the core is in very good
condition.
_________________________________________________________________________________
Criteria
Logging
Subsampling
techniques
and sample
preparation
Quality of
assay data
and
laboratory
tests
Verification
of sampling
and
assaying
JORC Code explanation
Whether core and chip samples have
been geologically and geotechnically
logged to a level of detail to support
appropriate
Mineral
Resource
estimation,
mining
studies
and
metallurgical studies.
Whether logging is qualitative or
quantitative in nature. Core (or costean,
channel, etc) photography.
The total length and percentage of the
relevant intersections logged.
If core, whether cut or sawn and
whether quarter, half or all core taken.
If non-core, whether riffled, tube
sampled, rotary split, etc and whether
sampled wet or dry.
For all sample types, the nature, quality
and appropriateness of the sample
preparation technique.
Quality control procedures adopted for
all sub-sampling stages to maximise
representivity of samples.
Measures taken to ensure that the
sampling is representative of the in-situ
material collected, including for
instance
results
for
field
duplicate/second-half sampling.
Whether sample sizes are appropriate
to the grain size of the material being
sampled.
For geophysical tools, spectrometers,
handheld XRF instruments, etc, the
parameters used in determining the
analysis including instrument make and
model, reading times, calibrations
factors applied and their derivation, etc.
Nature of quality control procedures
adopted (e.g. standards, blanks,
duplicates, external laboratory checks)
and whether acceptable levels of
accuracy (i.e. lack of bias) and
precision have been established.
Commentary
Detailed industry standard of collecting core in core trays,
marking meter intervals & drawing core orientation lines
was undertaken.
Core trays were photographed wet and dry prior to
sampling.
Drill hole logs are recorded in Excel spread sheets and
validated in Micromine Software as the drilling
progresses.
The entire length of all holes is logged.
The
verification
of
significant
intersections by either independent or
alternative company personnel.
The use of twinned holes.
Results verified internally by Company personnel
Documentation of primary data, data
entry procedures, data verification, data
storage (physical and electronic)
protocols.
Discuss any adjustment to assay data.
Core is half cut using an automatic core saw to achieve a
half-core sample for laboratory submission.
The sample preparation technique is considered industry
best standard practice.
No field duplicates have been collected in this program.
Field duplicates will be collected once initial results are
returned and resampling of the mineralised zones is
warranted.
Sample sizes are appropriate to the grain size of the
mineralisation.
No handheld XRF results are reported however the tool
was used to verify the mineralisation with reporting >0.3%
Ni in disseminated zones and >1% Ni in the matrix
sulphide zones.
DHTEM parameters are as follows;
Tx Loop size:
500 x 800 m
Transmitter:
GAP HPTX-70
Receiver:
EMIT SMARTem24
Sensor:
EMIT DigiAtlantis
Station spacing: 2m to 10m
Tx Freq:
0.5 Hz
Duty cycle:
50%
Current:
~130 Amp
Stacks:
32-64
Readings:
2-3 repeatable readings per
station
Hole CBDD0028 is twinning hole CBP042. No other
twinning is warranted at this stage.
The data was collected and logged using Excel
spreadsheets and validated using Micromine Software.
The data will be loaded into an externally hosted and
managed database.
No adjustments have been made to the assay data other
than length weighted averaging.
Criteria
Location of
data points
JORC Code explanation
Accuracy and quality of surveys used to
locate drill holes (collar and down-hole
surveys), trenches, mine workings and
other locations used in Mineral
Resource estimation.
Specification of the grid system used.
Quality and adequacy of topographic
control.
Data
spacing
and
distribution
Data spacing for reporting of
Exploration Results.
Whether the data spacing and
distribution is sufficient to establish the
degree of geological and grade
continuity appropriate for the Mineral
Resource and Ore Reserve estimation
procedure(s)
and
classifications
applied.
Whether sample compositing has been
applied
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 measures taken to ensure sample
security.
The results of any audits or reviews of
sampling techniques and data.
Orientation
of data in
relation to
geological
structure
Sample
security
Audits or
reviews
Commentary
The holes were pegged using a hand-held GPS + 3m
The rig was setup over the nominated hole position and
final GPS pickup occurred at the completion of the hole.
Holes are progressively surveyed by DGPS on a batch
basis.
MGA94_51
Topography is relatively flat and control is more than
adequate given the early stage of the project. A 3D drone
ortho-photographic survey had been used to create a
DTM of the project area.
Refer to Cross Sections and Plans included
Not applicable, no Mineral Resource is being stated.
No compositing has been applied. Intercepts are quoted
as length weighted intervals.
The drill hole orientation does not introduce a sample
bias.
Samples are in the possession of Estrella’s personnel
from field collection to laboratory submission.
No audits or reviews have been conducted for this release
given the early stage of the project.
Section 2 Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this section.)
Criteria
JORC Code explanation
Commentary
Mineral
Type, reference name/number,
Carr Boyd Nickel Pty Ltd (a wholly owned subsidiary of
tenement and
location and ownership including
ESR) holds a 100% interest in the nickel and base metal
land tenure
agreements or material issues with
rights to the project.
status
third parties such as joint ventures,
There are no known impediments to operate in the area.
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
Acknowledgment and appraisal of
The Carr Boyd Rocks deposit was discovered by Great
done by other
exploration by other parties.
Boulder Mines, in a joint venture with North Kalgurli Ltd
parties
in 1968. The deposit was mined between 1972 and
1975, during which time they explored for additional
breccia pipe occurrences near the mine.
WMC acquired Great Boulder Mines Ltd in 1975, briefly
reopening the mine in 1977 before closing it permanently
shortly thereafter due to a collapse in the nickel price.
The mine had produced 210,000t at 1.44% Ni and 0.46%
Cu before its closure.
From 1968 Pacminex Pty Ltd held most of the ground
over the CBLC outside of the immediate mine area.
Between 1968 and 1971 they conducted extensive
exploration programs searching for large basal contact
and/or stratabound Ni-Cu deposits. It was during this
time that most of the disseminated and cloud sulphide
occurrences such as those at Tregurtha, West Tregurtha
and Gossan Hill were discovered.
Defiance Mining acquired the regional tenements from
Pacminex in 1987 and focused on exploration for PGE
deposits between 1987 and 1990. In 1990 Defiance
purchased the Carr Boyd Rocks mine from WMC and
switched focus to the mine area between 1990 and 2001,
leaving many PGE targets untested.
From 1990 Defiance dewatered the mine to conduct
testwork and feasibility studies on the remnant
mineralisation. Metallurgical testwork, Mineral Resource
estimations, and scoping studies were completed.
Around 1996 the focus shifted again to regional
exploration for large tonnage basal contact deposits.
In 2001 Titan Resources Ltd (Titan) acquired the project
and recommenced economic evaluations of the remnant
material at Carr Boyd Rocks before embarking on
another regional exploration program focusing on the
basal contact. An aeromagnetic survey, airborne EM
reprocessing, and several programs of RAB and RC
drilling were completed.
From 2005 Yilgarn Mining entered a JV with Titan and
continued with some regional exploration but focused
most attention in and around the Carr Boyd Rocks mine.
In 2007 Titan was acquired by Consolidated Minerals Ltd
(Consmin). Consmin conducted IP surveys and detailed
gravity surveys but did not drill any targets before selling
the project to Salt Lake Mining (SLM) in 2013. SLM
completed limited drilling to meet expenditure
Criteria
JORC Code explanation
Commentary
commitments, before selling the project to Apollo
Phoenix Resources in 2016.
Apollo sold the project to ESR in 2018.
Geology
Deposit type, geological setting and
style of mineralisation.
The Carr Boyd project lies within the Achaean Yilgarn
Craton in a 700km belt of elongate deformed and folded
mafic, ultramafic rocks and volcanic sediments intruded
by granitoids which is referred to as the NorsemanWiluna Belt. The belt has been divided into several
geological distinct terranes, with the project area lying at
the northern end of the Gindalbie terrane (Swager, 1996).
The geology of the Carr Boyd area is dominated by the
Carr Boyd mafic-ultramafic intrusive complex (CBIC).
Several distinctive styles of Ni and Ni-Cu mineralisation
have been identified within the CBIC. At the Carr Boyd
Rocks Nickel Mine Ni-Cu mineralisation is hosted within
several 20 - 60m diameter brecciated pipe-like bodies
that appear to be discordant to the magmatic
stratigraphy. Mineralisation is hosted by a matrix of
sulphides
(pyrrhotite,
pentlandite,
pyrite
and
chalcopyrite) within brecciated Bronzite and altered
country rock clasts.
Stratiform Ni-Cu-PGE mineralisation has been identified
at several different locations within the layered magmatic
complex.
Estrella is in the process of re-mapping and reclassifying
the Carr Boyd Igneous Complex. Previous “Layered
Intrusive” models are misleading as the complex is made
up of many overprinted and juxtaposed, smaller layered
and non-layered intrusives that have progressed from
Ultramafic to Mafic over time. The complex is better
described as a magma feeder zone, where the earliest
melts passing through the Morelands Formation have
assimilated graphitic sulphidic shales, reached sulphur
saturation and deposited nickel sulphides along basal
contacts.
These basal contacts are not restricted to the base of the
complex, but can form within the complex, wherever
access was gained by these earlier flows.
The complex has then been intruded and inflated over
time by progressively more mafic, barren magmas to
produce what we see today.
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:
o
easting and northing of the
drill hole collar
o
elevation or RL (Reduced
Level – elevation above sea
level in metres) of the drill
hole collar
o
dip and azimuth of the hole
o
down hole length and
interception depth
o
hole length.
All relevant drillhole information can be found in the
Tables and sections within the announcement.
Criteria
Data
aggregation
methods
Relationship
between
mineralisation
widths and
intercept
lengths
Diagrams
Balanced
reporting
Other
substantive
exploration
data
JORC Code explanation
If the exclusion of this information is
justified on the basis that the
information is not Material and this
exclusion does not detract from the
understanding of the report, the
Competent Person should clearly
explain why this is the case.
In reporting Exploration Results,
weighting averaging techniques,
maximum and/or minimum grade
truncations (e.g. cutting of high
grades) and cut-off grades are
usually Material and should be
stated.
Where
aggregate
intercepts
incorporate short lengths of highgrade 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 reporting of
Exploration Results.
If the geometry of the mineralisation
with respect to the drill hole angle is
known, its nature should be
reported.
If it is not known and only the down
hole lengths are reported, there
should be a clear statement to this
effect (e.g. ‘down hole length, true
width not known’).
Appropriate maps and sections
(with scales) and tabulations of
intercepts should be included for
any significant discovery being
reported. These should include, but
not be limited to a plan view of drill
hole collar locations and appropriate
sectional views.
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.
Other exploration data, if meaningful
and material, should be reported
including (but not limited to):
geological
observations;
geophysical
survey
results;
geochemical survey results; bulk
Commentary
No information is excluded.
Intersections are reported on a 0.5% Ni cut-off with SG
and length weighted intervals.
All intercepts are reported using SG and length weighted
intervals.
No metal equivalents have been stated
True widths have not been stated. The variable orientation
of mineralisation within magma feeders combined with a
structural overprint and steep drill angles make true width
calculations highly misleading.
Maps and sections with drill hole locations are included in
the announcement.
All new drillhole information within this announcement is
reported
Everything meaningful and material is disclosed in the
body of the report.
Geological observations are included in the report.
No bulk samples, metallurgical, bulk density, groundwater,
geotechnical and/or rock characteristics test were carried
out.
Criteria
Further work
JORC Code explanation
samples – size and method of
treatment; metallurgical test results;
bulk
density,
groundwater,
geotechnical
and
rock
characteristics; potential deleterious
or contaminating substances.
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.
Commentary
There are no known potential deleterious or contaminating
substances.
Diamond drilling and DHTEM geophysical testing is
continuing.
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