Acquisition of Advanced Gold and Rare Earths Project
Released
Released
Announcement PDF
11 October 2023
Trek Secures Transformational Acquisition of Advanced
District-Scale Gold and Rare Earths Project
Acquisition of former Newmont project in the Kimberley represents a Tier-1 greenfields
exploration opportunity with multiple walk-up, drill-ready targets under shallow cover.
Highlights
•
Trek to acquire 100% of issued capital in Archer X Pty Ltd (“Archer”), owner of a 1,183km2
strategic exploration portfolio comprising four granted Exploration Licences and one
application in the Kimberley region of WA.
•
The project previously sat within Newmont’s global exploration portfolio under a farmin joint venture agreement but was recently returned to Archer following a rebalancing
of Newmont’s portfolio.
•
The entire portfolio is covered by Heritage Access agreements, with total exploration
expenditure to date of ~$5.7M.
•
Four major prospects, Martin, Coogan, Zahn and Willis, have been defined, with the
presence of bedrock gold mineralisation confirmed by drilling at Martin and Coogan.
•
Intersections at Martin include 7m @ 4.90g/t Au and 2m @ 9.65g/t Au, with the
mineralisation remaining open in all directions.
•
Significant multi-elemental exploration potential of district-scale including significant
rare earths potential adjacent to RareX’s Cummins Range REE Project.
Trek Metals Limited (ASX: TKM) (“Trek” or the “Company”) is pleased to advise that it has secured a
district-scale greenfields gold and rare earths exploration opportunity in the Kimberley Region of
Western Australia after securing the acquisition of an extensive portfolio previously part of Newmont
Exploration Pty Ltd’s (Newmont) global exploration portfolio.
The Christmas Creek Project, located south-west of Halls Creek, represents a previously unexplored,
largely concealed district-scale gold and rare earths exploration opportunity, associated with a major
continental-scale tectonic lineament intersection.
The Project covers a total area of 1,183km2, all of which is covered by Heritage Access Agreements,
with total exploration expenditure to date of ~$5.7 million.
The Project previously sat within Newmont’s suite of exploration projects, held under a joint venture
with Archer X Pty Ltd (Archer X). Under the previous joint venture and earn-in agreement, Newmont
successfully earned a 75% interest in the Project. Newmont subsequently relinquished that interest
1
following a rebalancing of its global exploration portfolio, returning the Project to 100% Archer X
ownership.
Archer X targeted the area as it believed it may be an extension of the prolific Granites-Tanami Orogen
(Figure 1), exposed as a basement high, with metasediments in the area showing a correlation to the
Tanami host sequences. Newmont’s Tanami mine, located in the Northern Territory, is one of global
significance, with Proven and Probable Reserves of 5.7Moz, with an additional 4.2Moz in Resources
(as at 31st December 2022, refer to Newmont news release from 23rd February 2023
https://www.newmont.com/investors/news-release/default.aspx). The Tanami mine has been owned
and operated by Newmont since 2002, producing an average of 500koz of gold each year.
Figure 1. Continental scale context and location map for the Christmas Creek Project, located at the intersection of G3 and
G5 metallogenic lineament corridors, potentially representing the intersection of the Granites-Tanami Orogen & the Halls
Creek Orogen.
Commenting on the acquisition, Trek’s CEO Derek Marshall said: “We are extremely fortunate to have
secured this exceptional new growth opportunity for Trek. It is very rare for a junior like us to be able
to get our hands on a district-scale exploration asset such as this, particularly one that used to sit within
the global exploration portfolio of a major company such as Newmont.
“The geological credentials of the Christmas Creek Project are outstanding, and the Project ticks all the
boxes in terms of its potential to host discoveries that could really move the dial for a global major.
Plus, we are inheriting nearly $6 million of high-quality exploration work and data that was performed
to a very high standard by Newmont.
2
“The Project offers standout gold potential, with numerous shallow, potentially ore grade intercepts
that remain unconstrained. In addition, its location near the Cummins Range carbonatite, currently
being developed by RareX, highlights the potential for a significant hard rock rare earths discovery.
“We are very excited by this transformational acquisition, and we see the Christmas Creek Project not
only becoming a pivotal asset for the Company but also an emerging centre of multi-element
exploration and discovery in Western Australia. We are looking forward to getting boots on the ground
and commencing our maiden exploration programs.”
Project Summary
Four major prospects have been identified within the Christmas Creek Project area – Martin, Coogan,
Zahn and Willis (Figure 2) utilising Newmont’s proprietary Deep Sensing Geochemistry (DSG) which
has been developed to explore for mineralisation concealed under cover.
The presence of bedrock gold mineralization has been confirmed by drilling at Martin and Coogan,
although both these prospects remain sparsely drill tested, in particular Coogan with drill lines
approximately 1km apart. The strong gold surface anomalism at Zahn remains unexplained in drilling
and there has been no drilling to date at the Willis Prospect.
Figure 2: Gold heatmap as defined by Deep Sensing Geochemistry (DSG) surface geochemistry across the project area,
highlighting the four main prospect areas; Coogan, Martin, Zahn & Willis.
3
In September 2019, a shallow air-core drilling program was completed comprising of 155 holes at the
Martin prospect and 56 holes over Zahn. In 2020, the Martin prospect was followed up with 17 Reverse
Circulation drill-holes and three holes at Zahn. Coogan was drill tested in August 2022 with the
completion of 18 RC drill-holes. Refer Tables at back of this release and the JORC Tables for additional
information.
Drill intersections at Martin include 7m @ 4.9g/t Au and 2m @ 9.65g/t Au, with the mineralisation
remaining open in all directions (Figure 3). In particular; NEWXRC012 with 2m @ 9.65g/t Au from 72m
is the southernmost hole on the westernmost RC traverse at Martin, and NEWXRC015 being the
northernmost hole on the easternmost RC drill line with 4m @ 1.22g/t Au from 8m and 3m @ 2.03g/t
Au from 137m, providing immediate drill targets. Refer to Tables 1-6 for additional details.
Figure 3. Plan view of the Martin Prospect highlighting the peak Au anomalies in RC and AC drilling over TMG Au score.
Noting that several of the significant intersections occur at the end of the RC drill lines, with mineralisation remaining open,
providing immediate drill targets.
A broad gold-mineralised structure with intersections such as 34m @ 0.18g/t Au and 38m @ 0.16g/t
Au has been defined at Coogan by drilling on two sections about 1km apart, with the central core of
the anomaly (between these sections) remaining untested (Figures 2 & 4, Tables 4 & 5).
4
Zahn is the strongest DSG gold anomaly and remains unexplained by very limited drilling. To date only
three RC holes have been drilled at Zahn. Refer to Tables 1, 2 and 4 for further details.
Willis is a large ~1500m long coherent gold anomaly in an area of total concealment that remains
undrilled, providing an exceptional exploration target.
Figure 4. Drill-hole locations over Gold DSG surface geochemistry, showing air-core (AC) drilling completed at Martin & Zahn,
reverse circulation (RC) drilling completed at Coogan, Martin & Zahn, and remaining prospect areas with no drilling to date.
Newmont’s exploration of this largely covered project area with their own proprietary DSG surface
geochemical sampling has been highly successful in locating concealed mineralisation, however there
is no reason to think that this has sterilized covered areas where no significant response was obtained.
The occurrence of a strongly gold anomalous air-core hole outside the footprint of the geochemical
anomaly at the Martin prospect provides evidence in support of this.
Future Exploration Potential
Apart from the main prospect areas, Trek believes the project area has considerable additional
exploration potential given there are several additional surface geochemical anomalies that have not
been fully defined or tested. Of note is a large gold anomaly located about 12km to the south-west of
Coogan along the same structural trend (Figure 5). This anomaly has been defined by very broadspaced (2 x 1km) geochemical sampling and extends over about 8km.
5
Trek believes that additional opportunities are present in the project area, such as the potential for
rare earth element (REE) mineralisation, given the project’s proximity to the Cummins Range REE
deposit.
Figure 5: A large DSG Au anomaly (~ 8km long & highlighted by red circle) has been defined by broad-spaced (2k x 1km grid)
DSG sampling to the south-west of Coogan, plausibly associated with the same metallogenic trend.
The Cummins Range Project, owned by RareX Limited (ASX:REE), is adjacent to the project tenements
in the south-east of the Christmas Creek Project. This is hosted by a weathered carbonatite in the
Cummins Range Intrusive Complex, with an Inferred and Indicated Resource of 519Mt at 0.32% total
rare earth oxides (TREO) and 4.6% P2O5, for a contained 1.6 million tonnes of contained TREO and 24
million tonnes of contained P2O5 (refer ASX:REE announcement 1 May 2023).
Sampling conducted by Newmont indicates areas with elevated rare-earth elements (lanthanum,
cerium and yttrium), typically highlighting resistate minerals such as monazite in alluvial regolith. To
the east of the Project’s Zahn prospect, approximately 7km west of the Cummins Range Project,
elevated REEs are coincident with elevated magnetics and could reflect carbonatite dykes.
Elevated lithium has also been evidenced in the DSG sampling. The lithium is spatially associated with
granites and is well correlated with potassium reflecting the concentration of clays at the surface. The
observed value of lithium is consistent with that seen at Tanami and is not suggestive of lithiummineralised pegmatites. However, outcropping pegmatitic rocks in the area have not yet been
sampled for geochemical analysis. Spodumene-bearing pegmatites have been identified in the Halls
Creek Orogen to the north-east of the Project and all known pegmatite occurrences are situated in
6
the southern end of the orogen, indicating some potential for lithium pegmatites within the project
area that have not been identified by the previous sampling.
Exploring Under Cover – The New Frontier
Exploring under cover has been a focus for major mining companies as the general consensus from
the mining industry is that the next round of significant mineral deposit discoveries is likely to come
from basement rocks concealed undercover (not outcropping at surface). This is one of the main
drivers for Trek to acquire Archer X, with most of the Project area covered by recent transported
material (e.g., Figure 6) providing the opportunity to test large scale blind targets in a fertile terrane.
Figure 6. Drilling at Christmas Creek shows the dominant landscape of shallow transported cover. The next round of
significant mineral discoveries is likely to come from under cover, such as at the Christmas Creek Project area. The work by
Newmont has discovered multiple mineralised bedrock occurrences under the transported material.
7
Key Terms of the acquisition
▪
Binding Heads of agreement (“Agreement”) to acquire 100% of the issued capital of Archer X
Pty Ltd (“Archer”) from the shareholders of Archer;
▪
Tenements: E80/4975, E80/5082, E80/5083, E80/5427, E80/5914 (App)
▪
Agreement is subject to normal condition precedent including :- Trek obtaining any board and regulatory approvals required;
- The shareholders of Archer entering into the required escrow deeds; and;
- Archer, Trek and where necessary, third parties, entering into any required deeds of
assignment in relation to Archer or the tenements at settlement.
▪
The consideration for the acquisition of Archer is :Upfront Consideration
i. Payment of $250,000;
ii. Cash payment as reimbursement for all costs and expenditure incurred by Archer in
respect to the tenements during the period between 17 September 2023 and
Settlement;
iii. Issue of $500,000 worth of fully paid ordinary shares in the capital of Trek (TKM Shares)
based on the 20-day volume weighted average price (VWAP) measured on the date
which is two days prior to the date of execution of the agreement; and
iv. Payment of a 1.25% net smelter royalty for all minerals produced in respect of the
Tenements to the Shareholders of Archer. Under the terms of the Royalty, upon a
decision to mine being made at the Tenements, Trek will have the exclusive right to
purchase the Royalty for $5,000,000.
Deferred Consideration
i. Issue of $500,000 worth of fully paid ordinary shares in the capital of Trek based on the
20-day (VWAP) measured on the date which is two days prior to the date of issue;
ii. Issued with a floor price of $0.08;
iii. Issued on the date that is 12 months from the date of settlement;
iv. Any shares issued will be subject to an escrow period of 6 months from the date of
issue.
Milestone Consideration
i. Subject to and conditional upon an announcement by Trek to ASX within 5 years of the
date of the Agreement, of the delineation by Trek of a 2,000,000 ounce gold equivalent
resource as verified by an independent competent person under the 2012 JORC code
(JORC Code), the issue of $5,000,000 worth of fully paid ordinary shares in the capital
of Trek based on the 20-day (VWAP) measured on the date which is two days prior to
the date of issue:
ii. Any shares issued have a floor price of $0.15 and will be subject to an escrow period of
6 months from the date of issue.
8
Trek intends to issue the consideration securities pursuant to its existing Listing Rule 7.1 capacity and
intends to use existing working capital funds to pay for the Acquisition. There are no intended changes
to the Board as a result of the Acquisition.
Trek continues to manage and progress its portfolio of existing projects (as set out in the most recent
quarterly report released on 28 July 2023) and will continue to update shareholders in relation to
progress at these projects.
Authorised by the Board.
ENDS
For further information contact:
INVESTORS:
MEDIA:
Derek Marshall
Nicholas Read
dmarshall@trekmetals.com.au
info@trekmetals.com.au
0419 929 046
DISCLAIMERS AND FORWARD-LOOKING STATEMENTS
This announcement contains forward looking statements. Forward looking statements are often, but not always,
identified A words such as "seek", “target”, "anticipate", “forecast”, "believe", "plan", "estimate", "expect" and
"intend" and statements that an event or result "may", "will", "should", "could" or "might" occur or be achieved
and other similar expressions.
The forward-looking statements in this announcement are based on current expectations, estimates, forecasts
and projections about Trek and the industry in which it operates. They do, however, relate to future matters
and are subject to various inherent risks and uncertainties. Actual events or results may differ materially from
the events or results expressed or implied by any forward-looking statements. The past performance of Trek is
no guarantee of future performance.
None of Trek’s directors, officers, employees, agents or contractors makes any representation or warranty
(either express or implied) as to the accuracy or likelihood of fulfilment of any forward-looking statement, or
any events or results expressed or implied in any forward-looking statement, except to the extent required by
law. You are cautioned not to place undue reliance on any forward-looking statement. The forward-looking
statements in this announcement reflect views held only as at the date of this announcement.
COMPETENT PERSONS STATEMENT
The information in this report relating to Exploration Results is based on information compiled by the Company’s
Chief Executive Officer, Mr Derek Marshall, a Competent Person, and Member of the Australian Institute of
Geoscientists (AIG). Mr Marshall has sufficient experience relevant to the style of mineralisation and to the type
of activity described 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 Marshall has disclosed that he
holds or controls Shares and Performance Rights in the Company. Mr Marshall consents to the inclusion in this
announcement of the matters based on his information in the form and content in which it appears.
9
Table 1. Significant intercepts from AC drilling at the Martin and Zahn Prospects using a >0.5g/t Au cut-off.
Hole ID
From
To
Thickness
Au g/t
GM
NEWXCAC196
24
31
7
4.90
34.3
Significant Intercept
7m @ 4.9g/t Au from 24m,
including 1m @ 29.6g/t Au
from 24m
NEWXCAC202
8
12
4
0.62
2.5
NEWXCAC202
12
16
4
0.62
2.5
Intercepts calculated as weighted averages using Au trigger value >0.5g/t, maximum consecutive length of waste
of 1m, with a maximum of 2m total length of waste.
Table 2. Significant intercepts from RC drilling at the Martin, Zahn & Coogan Prospects using a >0.5g/t Au cut-off.
Hole ID
From
To
Thickness
Au g/t
GM
Significant Intercept
NEWXCRC003
70
72
2
1.26
2.5
2m @ 1.26g/t Au from 70m
NEWXCRC010
44
48
4
0.66
2.6
4m @ 0.66g/t Au from 44m
NEWXCRC010
160
162
2
0.59
1.2
NEWXCRC012
72
74
2
9.65
19.3
2m @ 9.65g/t Au from 72m
NEWXCRC014
88
91
3
0.79
2.4
NEWXCRC014
114
118
4
1.46
5.9
4m @ 1.46g/t Au from 114m
NEWXCRC014
124
126
2
0.56
1.1
NEWXCRC015
4
6
2
1.04
2.1
NEWXCRC015
8
12
4
1.22
4.9
4m @ 1.22g/t Au from 8m
NEWXCRC015
137
140
3
2.03
6.1
3m @ 2.03g/t Au from 137m
NEWXCRC021
82
84
2
0.58
1.2
NEWXCRC023
126
128
2
0.50
1.0
NEWXCRC029
22
24
2
0.52
1.0
NEWXCRC029
120
122
2
0.63
1.3
Intercepts calculated as weighted averages using Au trigger value >0.5g/t, maximum consecutive length of waste
of 1m, with a maximum of 2m total length of waste.
10
Table 3. Significant intercepts from AC drilling at the Martin and Zahn Prospects using a >0.1g/t Au cut-off.
Hole ID
From
To
Thickness
Au g/t
GM
Significant Intercept
NEWXCAC030
48
60
12
0.11
1.3
NEWXCAC082
16
31
15
0.11
1.6
NEWXCAC107
12
24
12
0.11
1.3
NEWXCAC196
12
32
20
1.77
35.3
20m @ 1.77g/t Au from 12m
NEWXCAC202
4
24
20
0.31
6.2
20m @ 0.31g/t Au from 4m
Intercepts calculated as weighted averages using Au trigger value >0.1g/t, maximum consecutive length of waste
of 6m, with a maximum of 16m total length of waste. Results filtered for intercepts with gram*metre (GM) >1.
Table 4. Significant intercepts from RC drilling at the Martin, Zahn & Coogan Prospects using a >0.1g/t Au cut-off.
Hole ID
From
To
Thickness
Au g/t
GM
Significant Intercept
NEWXCRC002
158
176
18
0.11
1.9
NEWXCRC003
66
82
16
0.25
4.0
16m @ 0.25g/t Au from 66m
NEWXCRC004
164
174
10
0.13
1.3
NEWXCRC009
184
200
16
0.15
2.4
NEWXCRC010
40
58
18
0.22
4.0
18m @ 0.22g/t Au from 40m
NEWXCRC010
154
164
10
0.14
1.4
NEWXCRC011
140
150
10
0.10
1.0
NEWXCRC012
66
80
14
1.41
19.7
14m @ 1.41g/t Au from 66m
NEWXCRC014
112
132
20
0.37
7.4
20m @ 0.37g/t Au from 112m
NEWXCRC014
82
100
18
0.17
3.0
NEWXCRC015
82
120
38
0.22
8.3
38m @ 0.22g/t Au from 82m
NEWXCRC015
4
28
24
0.34
8.2
24m @ 0.34g/t Au from 4m
NEWXCRC015
137
148
11
0.66
7.3
11m @ 0.66g/t Au from 137m
NEWXCRC015
38
52
14
0.11
1.5
NEWXCRC015
58
68
10
0.10
1.0
NEWXCRC016
173
184
11
0.10
1.1
NEWXCRC021
58
92
34
0.18
6.0
34m @ 0.18g/t Au from 58m
NEWXCRC022
168
190
22
0.14
3.1
NEWXCRC023
104
122
18
0.16
3.0
NEWXCRC023
120
144
24
0.12
2.9
NEWXCRC023
94
102
8
0.12
1.0
NEWXCRC025
94
104
10
0.10
1.0
NEWXCRC026
166
178
12
0.13
1.5
NEWXCRC026
134
144
10
0.15
1.5
NEWXCRC026
192
204
12
0.10
1.2
NEWXCRC029
14
52
38
0.16
6.0
38m @ 0.16g/t Au from 14m
NEWXCRC029
114
144
30
0.15
4.4
30m @ 0.15g/t Au from 144m
NEWXCRC029
176
188
12
0.11
1.3
NEWXCRC029
94
106
12
0.11
1.3
NEWXCRC029
0
10
10
0.11
1.1
Intercepts calculated as weighted averages using Au trigger value >0.1g/t, maximum consecutive length of waste
of 6m, with a maximum of 16m total length of waste. Results filtered for intercepts with gram*metre (GM) >1.
11
Table 5. Collar Table for 2020 RC drilling at the Martin and Zahn Prospects
Table 6. Collar Table for 2022 RC drilling at the Coogan Prospect
12
JORC Table Section 1: Sampling Techniques and Data:
Criteria
Sampling
techniques
Drilling
techniques
Drill sample
recovery
JORC Code explanation
• Nature and quality of sampling (eg 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.
• 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 (eg ‘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 (eg
submarine nodules) may warrant disclosure of
detailed information.
Commentary
•
Soil sampling was the primary method for generating drill targets at the
Project, with sampling and analysis being undertaken by two main
methods:
o Deep Sensing Geochemistry (DSG):
•
Drill testing was undertaken by Aircore (AC) & Reverse Circulation (RC):
•
•
Drill type (eg core, reverse circulation, openhole hammer, rotary air blast, auger, Bangka,
sonic, etc) and details (eg 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
DSG is a proprietary geochemical method developed at Newmont and is
applied in areas with covered terrain. The method is used to map
lithologies, regolith variations, alteration, and mineralisation at depth
based on the analysis of materials obtained in the area of interest.
Details about the method are proprietary to Newmont and involve
nonconventional aspects of field collection, analytical methods, and data
analysis. The samples were shipped to Newmont’s proprietary facility in
Denver, USA for processing. Results from the survey require
geochemical interpretation to produce products typically quantified by a
“score” that reflects geological information of interest such as lithology,
alteration, mineralisation,etc. Newmont’s DSG technique is proprietary,
and the data and methodology are commercial in confidence.
All figures within the main body of the announcement relating to surface
geochemistry are utilising the DSG dataset.
o
Conventional:
A conventional soil sampling program was also undertaken at Martin to
confirm the replication of the DSG sampling results. A soil sample was
collected from each sample site using a hand shovel, and the soil passed
through a sieve. Each soil sample was generally collected over a 30cm x
30cm area, from an average depth of 30cm. Soil samples were
submitted to Australian Laboratory Services Pty Ltd (ALS) in Malaga,
Western Australia for gold and multi‐element analysis (ME-MS41L, Aqua
Regia & LA-ICP-MS).
•
o
211 AC holes for a total of 7,965m was undertaken at the Martin and
Zahn Prospects in 2019, utilising Strike Drilling’s track mount X350 drill
rig. Samples were collected as 4m composite samples, and a final
metre interval at the bottom of every drillhole was collected. The
collected rock chip samples were submitted to ALS in Malaga, Western
Australia and were analysed for gold. Multi-element analysis was also
undertaken on the final metre interval on every drillhole.
o
20 RC holes for a total of 3,934m was undertaken at the Martin (17
holes) and Zahn (3 holes) Prospects in 2020. 19 RC holes for a total of
3,642m was undertaken at the Coogan Prospect in 2022. In both drill
programs drill cuttings were collected during drilling through a cyclone
into a calico bag as 2 m composite samples for approximately 3-4 kg of
sample. These samples were submitted to ALS in Malaga, Western
Australia for gold and multi‐element analysis.
Reverse circulation drilling recoveries were good, with any issues noted by
geologist and recorded in the database. There was no observed relationship
between sample recovery and grade.
13
Criteria
Logging
Sub-sampling
techniques
and sample
preparation
Quality of
assay data
and
laboratory
tests
JORC Code explanation
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.
• 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 subsampling 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.
•
•
•
The nature, quality and appropriateness of the
assaying and laboratory procedures used and
whether the technique is considered partial or
total.
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 (eg standards, blanks, duplicates,
external laboratory checks) and whether
acceptable levels of accuracy (ie lack of bias)
and precision have been established.
Commentary
•
All geological and sample logs were captured digitally in Newmont’s
proprietary logging system, Visual Logger, using the Yandal system. Data
now resides within Newmont’s Global Exploration Database (GED) and can
be exported as .csv.
•
All chips were retained in trays photographed. Spoil piles were also
photographed.
•
AC cuttings were collected during drilling through a rig mounted cyclone
with a hydraulic actuated gate to allow only individual metres to pass into a
bucket at any one time. This primary bulk sample captured by bucket was
then placed in rows of 20 on the ground immediately adjacent the drill rig.
From these primary sample piles, material for assay was collected as
follows:
o Individual meter samples were collected for the ‘Bottom of Hole’
(BOH) metre.
o 4m composite sampling from ‘Top of Hole’ (TOH) to BOH (excluding
the last metre) was conducted using a PVC spear. This was done by
starting at the base of the pile and drawing up to the peak, to ensure a
representative sample is collected.
•
RC drill cuttings were collected during drilling through a cyclone into two
bags. RC samples were homogenised using a riffle splitter, with samples
collected as 2 m composites and approximately 3‐4kg of sample.
•
Sample sizes are considered appropriate for the material and analysis
method.
•
Publicly available information on Deep Sensing Geochemistry (DSG) is
provided under Sampling techniques of this table. It is considered an
appropriate method to analyse transported cover sequences in the search
of concealed bedrock mineralisation.
•
Conventional soils were analysed by Australian Laboratory Services Pty Ltd
(ALS) in Malaga, Western Australia for gold and multi‐element analysis
(ME-MS41L, Aqua Regia & LA-ICP-MS).
•
Drill samples were analyzed by screen fire assay for Au and fusion with ICP
finish for multi-element analysis (ME-MS61L, Au-ICP22) at ALS in Malaga.
These techniques are considered full digest and appropriate for the
elements of interest.
•
Gold standards were inserted at a frequency of one per 50 samples and
blanks inserted every 50 samples. Duplicate samples were requested every
50 samples.
14
Criteria
Verification of
sampling and
assaying
Location of
data points
Data spacing
and
distribution
JORC Code explanation
•
The verification of significant intersections by
either independent or alternative company
personnel.
•
The use of twinned holes.
•
Documentation of primary data, data entry
procedures, data verification, data storage
(physical and electronic) protocols.
•
Discuss any adjustment to assay data.
• 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.
Commentary
• There have been no twinned holes.
•
•
•
Orientation of
data in
relation to
geological
structure
•
Sample
security
•
Audits or
reviews
•
•
•
All company data has bee
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