Broken Hill Drilling Update
Released
Released
Announcement PDF
ASX ANNOUNCEMENT
Date: 20 August 2020
Number: 700/200820
DRILLING UPDATE, BROKEN HILL PROJECT NSW
Reverse Circulation (RC) drill rig commences drilling at Platinum Springs.
Three prospects to be drill tested to follow up previous drill intercepts such as:
2.75 metres at 3.5 g/t platinum, 7 g/t palladium, 0.4 g/t gold, 2% copper, 1.9% nickel and
11.6 g/t silver from 55 metres down hole; and
1.5. metres at 1.7% nickel, 1.3% copper, 4.3 g/t palladium, 3.05 g/t platinum and 1.08 g/t gold
RC rig to move to Little Broken Hill Gabbro to speed up progress following
unseasonal wet weather.
Impact Minerals Limited (ASX:IPT) is pleased to announce that drilling has now commenced at the
Platinum Springs Prospect at the company’s Broken Hill nickel-copper-platinum group metal (PGM)
project in New South Wales (Figure 1).
Platinum Springs is one of three prospects, together with Red Hill and Little Broken Hill Gabbro, that are
to be drill tested as part of the current campaign to follow up previous high grade drill intercepts and other
encouraging exploration results from previous geophysical and geochemical surveys.
The Platinum Springs prospect lies at the southern end of a major nine kilometre long dyke called the
Moorkai Trend that has very high grade nickel-copper-PGM’s in previous rock chip samples in many
places along the entire trend (Figure 2, ASX Release 3rd February 2016).
Three main target areas at the southern end of the Moorkai Trend will be tested by reverse circulation drill
holes: Platinum Springs, Plat Central and Plat West. These areas cover three parts of a significant change
in trend of the dyke from north-south to east-west over a distance of about 1,500 metres (Figures 3 and 4).
The dyke is poorly exposed at surface around this change in trend and previous drilling has been focussed
on areas of outcrop (Figure 3). However, a compilation of previous drilling and ground magnetic data
shows that the dyke is much thicker in the areas under cover than previously recognised and these areas
are relatively untested in many places (Figure 4).
Previous Drill Results
All three targets have had previous encouraging drill results including two diamond drill holes completed
by Impact at Platinum Springs (ASX Release 3rd February 2016). None of these have been followed up.
26 Richardson Street West Perth Western Australia 6005
Tel +61 (8) 6454 6666 Facsimile +61 (8) 6454 6667
Email info@impactminerals.com.au www.impactminerals.com.au
Drill results from the other prospects have not been previously reported under the JORC 2012 code.
Accordingly, all previous drill collars are listed in Table 1 and significant intercepts in Table 2 at the end
of this report. Details on the various drill programmes completed by previous explorers are given in the
JORC Table.
Figure 1. Location of Impact’s tenements in the Broken Hill area and key prospects for nickel-copperPGM mineralisation. Platinum Springs, Red Hill and Little Broken Hill Gabbro are in the NE of the map.
Figure 2. Rock chip samples results from along the Moorkai Trend.
Figure 3 and 4. Surface geology (left) and image of magnetic data (right) of the Platinum Springs area
showing key prospects and previous drill results.
Platinum Springs
The majority of previous work has focussed on the Platinum Springs Prospect (previously called Mulga
Springs) where near surface gossans were first recorded. Numerous drill holes tested the dyke at depth.
However, this work was mostly done with a model of a large layered intrusion in mind in which high
grade PGM’s were expected along a large strike length of the host intrusion.
Work by Impact suggests that a Kambalda-style structural channel or even chonolith is a more appropriate
geometric model to follow. Such styles of nickel-copper-PGM sulphide mineralisation are more
challenging to discover, but once confirmed can persist for long distances down plunge.
Impact’s drill hole PSD02 (ASX Release 3rd February 2016) intersected a narrow unit of magmatic nickelcopper-PGM sulphides in a structural channel at the base of the ultramafic unit that returned:
0.6 metres at 11.5 g/t platinum, 25.6 g/t palladium, 1.4 g/t gold,7.6% copper, 7.4% nickel and 44.3
g/t silver from 57.1 metres down hole
within a broader intercept of
2.75 metres at 3.5 g/t platinum, 7 g/t palladium, 0.4 g/t gold, 2% copper, 1.9% nickel and 11.6 g/t
silver from 55 metres down hole.
This hole was close to a previous drill intercept in (DD) MS 04 of:
2 metres at 3% nickel, 3.57% copper and 8.4 g/t platinum including 0.9 metres at 18.8 g/t platinum,
7.5% nickel and 8.1% copper. Palladium and gold were not assayed.
Together, assays from previous drill holes have defined an area that is at least 200 metres long and up to
20 metres wide at greater than 1 g/t combined PGM’s (Pt-Pd-Au) (Figure 5).
Drill testing will be focussed on tracking the massive sulphide unit to the north and north west.
Figure 5. Geology and location of PSD01 and PSD02, previous drill holes and contoured data of previous
drill assays for platinum, palladium and gold (summed from down hole intervals).
Plat West
At Plat West three previous drill holes returned significant results (Figures 3 and 4).
Hole PMS07 returned:
1.52 metres at 1.72% nickel, 1.25% copper, 4.3 g/t palladium, 3.05 g/t platinum and 1.08 g/t gold
(8.4 g/t 3PGM) from 135.6 metres down hole.
Hole DDMS07 returned
1.5 metres at 1.25% nickel, 0.4% copper and 3.8 g/t palladium, 2.7 g/t platinum and 1 g/t gold from
158 metres down hole.
Both of these intercepts came from sulphide rich zones at the base of the dyke. In addition, Hole
MWC003 returned
18 metres at 0.75 g/t 3PGM from 94 metres down hole including 3 metres at 2 g/t 3PGM (Table 1).
This is a much thicker zone of PGM compared to most other drill intercepts and suggests that the dyke
may have zones with larger bulk mining potential as well as basal sulphides.
All of these zones are open at depth and down plunge and will be drill tested.
Plat Central
At Plat Central numerous shallow drill holes tested the dyke close to the fold axis (Figures 3 and 4).
About ten drill holes returned anomalous platinum-palladium-gold values over an area of several hundred
square metres.
Of note, about 200 metres to the south west of the centre of the target, is a small historic shallow digging
called the Mulga Springs Copper Prospect (Figure 3). The copper mineralisation is associated with socalled Broken Hill lode rocks characteristic of the alteration around early silver-lead-zinc-copper sulphide
mineralisation.
The lode rocks trend towards the Moorkai dyke at Plat Central and the intersection point is considered an
important target to be tested. A similar intersection is a key component of the mineralisation at Impact’s
Red Hill prospect where very high-grade nickel-copper-PGM’s are also associated with previously
mineralised copper-bearing Broken Hill lode rocks. The early sulphide mineralisation may have helped
trigger sulphide precipitation when intruded and absorbed by the Moorkai ultramafic dyke.
Little Broken Hill Gabbro
At Little Broken Hill Gabbro progress has been hindered by unseasonal wet weather which has reduced
access to the drill site under the Land Access Agreement with the station owner. In addition, the aircore
rig has not had the penetration rate promised and progress has been slower than anticipated. Accordingly,
the aircore rig is being retired and will be replaced the RC rig when it has competed the programme at
Platinum Springs.
COMPLIANCE STATEMENT
This report contains collar locations for 96 drill holes and assay data for 27 drill holes drilled by previous
explorers that have not been reported previously in accordance with the JORC 2012 Code.
Dr Mike Jones
Managing Director
The review of exploration activities and results contained in this report is based on information compiled by Dr Mike Jones, a Member
of the Australian Institute of Geoscientists. He is a director of the company and works for Impact Minerals Limited. He has sufficient
experience which is relevant to the style of mineralisation and types of deposits under consideration and to the activity which he is
undertaking to qualify as a Competent Person as defined in the 2012 edition of the Australasian Code for Reporting of Exploration
Results, Mineral Resources and Ore Reserves (the JORC Code). Mike Jones has consented to the inclusion in the report of the matters
based on his information in the form and context in which it appears.
TABLE 1. DRILL HOLE DETAILS FROM PREVIOUS NON-IMPACT DRILLING AT
PLATINUM SPRINGS
Hole ID
DDMS1
DDMS2
DDMS3
DDMS4
DDMS5
DDMS6
DDMS7
DDMS8
GMS-01
GMS-02
GMS-03
GMS-04
GMS-05
GMS-06
GMS-07
GMS-08
GMS-09
GMS-10
GMS-11
GMS-12
GMS-13
GMS-14
GMS-15
GMS-16
GMS-17
Easting Northing Dip Azimuth
562985 6472032 -60
180
562979 6472060 -60
180
563004 6472057 -90
0
562973 6472087 -90
0
562881 6472116 -90
0
562975 6472142 -70
180
562582 6472325 -70
270
562619 6472452 -70
270
562928 6471994 -90
0
562940 6471990 -90
0
562941 6472001 -90
0
562922 6472005 -90
0
562931 6472003 -90
0
562971 6472079 -90
0
562966 6472067 -90
0
562950 6472061 -90
0
562974 6472059 -90
0
562953 6472047 -90
0
563016 6472005 -90
0
563010 6472015 -90
0
562980 6472001 -90
0
562962 6472037 -90
0
562950 6472039 -90
0
562940 6472043 -90
0
562971 6472044 -90
0
EOH
Depth
26.5
46.3
46.3
67.1
142
151.5
198.1
237.4
15
18
24
18
24
52
50
22
34
15
12
16
16
19
9
8
27
Hole ID
GMS-18
GMS-19
GMS-20
GMS-21
GMS-22
GMS-23
GMS-24
GMS-25
GMS-26
GMS-27
GMS-28
GMS-29
GMS-30
GMS-31
GMS-32
GMS-33
GMS-34
GMS-35
MS1
MS10
MS11
MS12
MS13
MS14
MS15
MS16
MS17
MS18
MS19
MS2
MS20
MS21
MS22
MS23
MS24
MS25
MS26
MS3
MS4
Easting Northing Dip Azimuth
562974 6472031 -90
0
562913 6472018 -90
0
562909 6472033 -90
0
562903 6472041 -90
0
562890 6472027 -90
0
562980 6472077 -90
0
562961 6472075 -90
0
562961 6472088 -90
0
563107 6472033 -90
0
563069 6472039 -90
0
563089 6472053 -90
0
563003 6472034 -90
0
563029 6472021 -90
0
562996 6472019 -90
0
562962 6472077 -90
0
562986 6472108 -75
183.5
562963 6472066 -77
0
562967 6472068 -70
67.5
562984 6472071 -90
0
562716 6472045 -90
0
562617 6472082 -70
217
562513 6472279 -70
213
562450 6472374 -70
244
562471 6472347 -70
256
562955 6472120 -90
0
562922 6472053 -90
0
563009 6472112 -90
0
562982 6472110 -90
0
562981 6472139 -90
0
563015 6472091 -90
0
562999 6472128 -90
0
563195 6472025 -70
179
562948 6472156 -90
0
563077 6472055 -90
0
563087 6472034 -90
0
562596 6472094 -70
227
562599 6472155 -70
227
562935 6472085 -90
0
562952 6472056 -90
0
EOH
Depth
24
9
5
12
15
41
25
33
25
21
37
28
8
13
39
65
54
60
46.5
30.7
49
108.1
103.2
113.2
62
24.9
76
68
70
74.9
94
49
61
46
40
48
78
48.9
42.8
Hole ID
MS5
MS6
MS7
MS8
MS9
MSC001
MWC001
MWC002
MWC003
MWR001
MWR002
MWR003
MWR004
MWR005
MWR006
MWR007
MWR008
MWR009
MWR010
PMS1
PMS10
PMS11
PMS12
PMS13
PMS2
PMS3
PMS4
PMS5
PMS6
PMS7
PMS8
PMS9
Easting Northing Dip Azimuth
562961 6472030 -90
0
563014 6472031 -90
0
563045 6472026 -90
0
563036 6472058 -90
0
562893 6472051 -90
0
563059 6472088 -90
0
562570 6472179 -60
225
562632 6472115 -60
225
562481 6472400 -60
270
562589 6472187 -90
0
562582 6472183 -90
0
562567 6472171 -90
0
562560 6472165 -90
0
562552 6472157 -90
0
562554 6472149 -90
0
562536 6472143 -90
0
562530 6472134 -90
0
562524 6472128 -90
0
562515 6472123 -90
0
562995 6472182 -90
0
562506 6472747 -70
270
562490 6472807 -70
270
562319 6472481 -70
270
563218 6472012 -70
225
563125 6472137 -70
180
562875 6472175 -70
180
562754 6472159 -70
180
562625 6472206 -70
225
562530 6472261 -70
225
562486 6472378 -70
270
562532 6472504 -70
270
562513 6472625 -70
270
EOH
Depth
26
30.8
33.1
40
30.7
87
120
84
135
4
3
20
20
14
14
3
12
15
20
169.2
89.9
112.8
76.2
56.4
125
83.8
152.4
129.5
137.2
152.4
187.5
121.9
TABLE 2. Significant Intercepts
Hole ID
PMS07
DDMS07
DDMS03
DDMS04
MWC001
MWC002
MWC003
including
also including
MS03
MS04
including
also including
MS08
MS15
MS23
MS24
GMS-01
GMS-06
GMS-09
GMS-12
GMS-13
GMS-14
GMS-15
GMS-17
GMS-19
GMS-27
GMS-28
GMS-34
GMS-35
MSC001
From
135.64
158.00
38.56
48.16
49.07
47
29
94
95
109
23.46
13.06
14.06
15.06
21.71
58.34
31
25
0
45
14
9
6
13
2
14
4
12
32
16
23
79
To
Width Cu_% Ni_% Au_ppm Pd_ppm Pt_ppm
137.16 1.52
1.25 1.72
1.08
4.30
3.05
159.50 1.50
0.40 1.25
1.00
3.80
2.70
40.39
1.83
0.75 1.15 No assay No assay
2.76
49.07
0.91
8.10 7.50 No assay No assay 18.77
50.06
0.99
0.55 0.17 No assay No assay
1.92
49
2
0.15 0.25
0.08
0.78
0.42
33
4
0.15 0.25
0.05
0.74
0.40
112
18
0.11 0.18
0.03
0.47
0.25
98
3
0.32 0.34
0.07
1.27
0.67
111
2
0.15 0.22
0.06
0.99
0.49
24.46
1
0.74 0.18
0.09
0.89
0.26
17.06
4
0.88 0.10
0.37
6.92
5.05
15.06
1
2.50 0.17
1.27
24.60
18.00
16.06
1
0.63 0.07
0.11
1.87
1.03
22.71
1
0.07 0.08
0.06
0.84
0.20
59.34
1
0.12 0.33
0.06
0.92
0.37
34
3
0.20 0.22
0.03
0.94
0.48
27
2
0.50 0.05
0.11
3.50
1.60
5
5
0.26 0.55
0.03
0.75
0.27
47
2
6.10 4.42
0.94
23.10
10.90
16
2
0.14 0.24
0.07
0.63
0.32
13
4
1.00 0.50
0.19
5.60
2.08
8
2
0.43 0.40
0.10
0.69
0.35
15
2
0.48 0.27
0.15
1.10
1.40
4
2
0.60 0.35
0.10
1.99
1.25
16
2
0.38 0.32
0.12
0.83
0.34
5
1
0.24 0.32
0.06
0.68
0.45
14
2
0.15 0.13
0.45
0.54
0.25
36
4
0.01 0.01
0.07
0.71
0.40
21
5
0.69 0.35
0.27
2.37
1.75
26
3
0.21 0.17
0.07
0.76
0.41
80
1
0.12 0.04
0.04
1.23
0.76
3PGE
8.43
7.50
2.76
18.77
1.92
1.28
1.19
0.75
2.01
1.54
1.23
12.34
43.87
3.01
1.10
1.35
1.43
5.20
1.05
34.94
1.03
7.87
1.14
2.65
3.34
1.29
1.20
1.25
1.18
4.39
1.24
2.03
APPENDIX 1 - SECTION 1 SAMPLING TECHNIQUES AND DATA FOR THE BROKEN HILL PROJECT
Criteria
Sampling techniques
JORC Code explanation
Commentary
Nature and quality of sampling (e.g. cut channels, random chips, or specific
specialised industry standard measurement tools appropriate to the
minerals under investigation, such as down hole gamma sondes, or
handheld XRF instruments, etc). These examples should not be taken as
limiting the broad meaning of sampling.
Drill results referred to in this report were done by CRA in the 1970’s, Canyon Resources in the 1980’s
and Golden Cross Resources in the early 2000’s. Details on the various sampling methods and
geochemical assay values are poorly documented but are not material for this stage of exploration.
Include reference to measures taken to ensure sample representivity and
the appropriate calibration of any measurement tools or systems used
Aspects of the determination of mineralisation that are Material to the
Public Report. In cases where ‘industry standard’ work has been done this
would be relatively simple (e.g. ‘reverse circulation drilling was used to
obtain 1 m samples from which 3 kg was pulverised to produce a 30 g
charge for fire assay’). In other cases more explanation may be required,
such as where there is coarse gold that has inherent sampling problems.
Unusual commodities or mineralisation types (e.g. submarine nodules)
may warrant disclosure of detailed information
RC Drill Samples
All RC drill chips were collected at 1m intervals using rotary sample collector attached to the rig.
RC and Diamond Drill Samples
Canyon Resources completed diamond and percussion holes. Samples were collected at 1m intervals
within the ultramafic and to a depth of 10-15m into the footwall gneiss. Samples were then split and
analysed for Cu and Ni by AAS method. Anomalous samples in Cu and Ni were then analysed for Pt, Pd
and Au by screen fire assay.
Drilling techniques
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, face-sampling bit or other type,
whether core is oriented and if so, by what method, etc).
The Platinum Springs project was drilled by diamond and percussion RC methods. RC drill chips were
collected at 1m intervals using a rotary sample collector. Diamond drill samples were also collected
mostly at 1 metre intervals.
Drill sample recovery
Method of recording and assessing core and chip sample recoveries and
results assessed
Details are not recorded but are not material for this early stage of exploration.
Measures taken to maximise sample recovery and ensure representative
nature of the samples
Details are not recorded but are not material for this early stage of exploration.
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.
Details are not recorded but are not material for this early stage of exploration.
Logging
Whether core and chip samples have been geologically and geotechnically
logged to a level of detail to support appropriate Mineral Resource
estimation, mining studies and metallurgical studies.
Whether logging is qualitative or quantitative in nature. Core (or costean,
channel, etc) photography.
Geological logging of samples followed company and industry common practice. Qualitative logging of
samples included (but not limited to); lithology, mineralogy, alteration, veining and weathering. Diamond
core logging included additional fields such as structure and geotechnical parameters.
All logging is quantitative, based on visual field estimates. Systematic photography of the diamond core
in the wet and dry form was completed.
Criteria
JORC Code explanation
Commentary
All diamond drill holes and RC logs were logged in full. Some companies only provided summary logs
The total length and percentage of the relevant intersections logged
Sub-sampling techniques and
sample preparation
Quality of assay data and
laboratory tests
Verification of sampling and
assaying
If core, whether cut or sawn and whether quarter, half or all core taken.
Details are not recorded but are not material for this early stage of exploration.
If non-core, whether riffled, tube sampled, rotary split, etc and whether
sampled wet or dry.
RC samples were rotary split
For all sample types, the nature, quality and appropriateness of the sample
preparation technique.
Details are not recorded but are not material for this early stage of exploration. It is likely that standard
industry practices were used.
Quality control procedures adopted for all sub-sampling stages to
maximise representivity of samples.
Details are not recorded but are not material for this early stage of exploration.
Measures taken to ensure that the sampling is representative of the in situ
material collected, including for instance results for field duplicate/secondhalf sampling.
Details are not recorded but are not material for this early stage of exploration. It is likely that standard
industry practices were used.
Whether sample sizes are appropriate to the grain size of the material
being sampled.
Sample sizes are considered adequate due to mineralisation style.
The nature, quality and appropriateness of the assaying and laboratory
procedures used and whether the technique is considered partial or total.
An industry standard fire assay technique for samples using lead or nickel collection with an Atomic
Absorption Spectrometry (AAS) was used. Golden Cross Resources used Genalysis Laboratories.
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.
N/A
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.
Details are not recorded but are not material for this early stage of exploration. It is likely that standard
industry practices were used.
The verification of significant intersections by either independent or
alternative company personnel.
The results have not been verified by independent or alternative companies. This is not required at this
stage of exploration.
The use of twinned holes.
N/A
Documentation of primary data, data entry procedures, data verification,
data storage (physical and electronic) protocols.
Primary assay data for drill assays has been received digitally from Minview historical reports then later
combined with hole numbers and depths by Impact into a standard Excel templates for plotting in
Mapinfo, Geosoft Target and Leapfrog. Original pdf laboratory assay certificates are saved for
verification when required.
Discuss any adjustment to assay data.
There are no adjustments to the assay data.
Criteria
Location of data points
JORC Code explanation
Accuracy and quality of surveys used to locate drillholes (collar and downhole 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
Commentary
Sample locations and drill holes were recorded from historical reports.
The grid system for Broken Hill is MGA_GDA94, Zone 54.
Standard government topographic maps have been used for topographic validation.
Data spacing for reporting of Exploration Results.
Diamond drill holes are conducted at varying spacings, orientations and depths deemed appropriate for
early stage exploration
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.
Estimations of grade and tonnes have not yet been made.
Whether sample compositing has been applied.
Sample compositing has not 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.
The orientation of mineralisation is yet to be determined. A 3D review of the mineralisation is currently
underway to better interpret the orientation of mineralisation and assist follow-up drilling.
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.
Not relevant to early stage exploration drill results. No sampling bias has been detected.
Sample security
The measures taken to ensure sample security.
Chain of custody is managed by Impact Minerals Ltd. A courier is contracted by Impact Minerals to
transport the samples from Broken Hill to the Intertek laboratory in Adelaide for preparation and assay.
Whilst in storage, they are kept in a locked yard. Tracking sheets have been set up to track the progress
of batches of samples.
Audits or reviews
The results of any audits or reviews of sampling techniques and data.
At this stage of exploration, a review of the sampling techniques and data by an external party is not
warranted.
Orientation of data in relation
to geological structure
SECTION 2 REPORTING OF EXPLORATION RESULTS
Criteria
JORC Code explanation
Commentary
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 Broken Hill Project currently comprises 8 exploration licences covering 825 km2. The tenements are
held 100% by Impact Minerals Limited, with Silver City Minerals holding a 20% interest in the silver-leadzinc rights of E7390 free carried to a Decision to Mine. No aboriginal sites or places have been declared
or recorded over the licence area. There are no national parks over the licence area.
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.
The tenement is in good standing with no known impediments.
Exploration done by other
parties
Acknowledgment and appraisal of exploration by other parties.
There has been no significant previous work at this prospect prior to Impact Minerals work.
Geology
Deposit type, geological setting and style of mineralisation.
Nickel-copper-PGE sulphide mineralisation associated with an ultramafic intrusion.
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:
•
easting and northing of the drill hole collar
•
elevation or RL (Reduced Level – elevation above sea level in
metres) of the drill hole collar
•
dip and azimuth of the hole
•
down hole length and interception depth
•
hole length.
See Table details within the main body of this ASX Release.
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.
All reported assays have been length weighted. No top cuts have been applied. A minimum grade of
1 g/t 7PGE has been used.
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.
High grade semi-massive and vein-style sulphide intervals internal to broader zones of disseminated
sulphide mineralisation are reported as included intervals. The intervals stated in this release are
calculated at greater than 1 g/t 7PGM. Within the wide 25-32m intervals of mineralisation in RHD001
and RHD006 intervals of lower grade <1 g/t 7PGM are included in the composite results. Intervals of
lower grade vary from 1 to 3.7 m.
The assumptions used for any reporting of metal equivalent values should
be clearly stated.
No metal equivalents have been reported.
Mineral tenement and land
tenure status
Data aggregation methods
Criteria
JORC Code explanation
Commentary
Relationship between
mineralisation widths and
intercept lengths
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’).
Diagrams
Appropriate maps and sections (with scales) and tabulations of intercepts
should be included for any significant discovery being reported These
should include, but not be limited to a plan view of drill hole collar
locations and appropriate sectional views.
Refer to Figures in body of text.
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.
All results reported are representative
Balanced reporting
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.
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
The orientation of mineralisation is yet to be determined. A 3D review of the mineralisation is currently
underway to better interpret the orientation of mineralisation and assist follow-up drilling.
Assessment of other substantive exploration data is not yet complete however considered immaterial at
this stage.
Follow up work programmes will be subject to interpretation of results which is ongoing. A 3D review of
the mineralisation is currently underway to better interpret the orientation of mineralisation and assist
follow-up drilling.
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