TIDMGGP
RNS Number : 0507J
Greatland Gold PLC
08 December 2022
8 December 2022
THIS ANNOUNCEMENT CONTAINS INSIDE INFORMATION AS STIPULATED
UNDER THE UK MARKET ABUSE REGULATIONS. ON PUBLICATION OF THIS
ANNOUNCEMENT VIA A REGULATORY INFORMATION SERVICE, THIS INFORMATION
IS CONSIDERED TO BE IN THE PUBLIC DOMAIN.
Greatland Gold plc
("Greatland" or "the Company")
Havieron Exploration and Development Update
Exploration decline reaches 1,000 metres milestone during
November as improved
ground conditions return decline back on to the current
schedule
Mineralised intercepts in the Northern Breccia and the Eastern
Breccia
confirm and extend existing areas of mineralisation
Greatland Gold plc (AIM:GGP), the mining development and
exploration company with a focus on precious and base metals, is
pleased to provide an exploration and development update at the
Havieron gold-copper project in the Paterson region of Western
Australia.
Exploration Activities
-- Growth drilling continues to confirm and expand the
extensions to known mineralisation in the Eastern Breccia and the
Northern Breccia
-- Exploration drilling continues to test regional geophysical
targets outside of the main Havieron system on the Havieron mining
lease
-- Six drill rigs presently on site ahead of scheduled wind down
over the summer wet season
Accelerated decline development
-- The exploration decline reached a significant milestone
during the month of November 2022 with 1,000 metres of decline
development achieved
-- Development advance rates have continually improved providing
additional confidence around the forecasted schedule
Feasibility Study Update
-- Technical work to support the development of the Feasibility
Study continued during the quarter. As announced previously, the
study remains in progress and will be extended beyond the December
2022 quarter to allow further time to enhance value. This will
include the impact of significant additional drilling information
and the assessment of optimisation studies.
Significant New Growth Drilling Results (intercepts are reported
as downhole width not true width)
Eastern Breccia
-- HAD098W7
-- 26m @ 2.2 g/t Au & 0.17 % Cu from 1,584m
-- HAD134
-- 82m @ 2.1 g/t Au & 0.25 % Cu from 1,508m
-- including 30m @ 2.4 g/t Au & 0.19 % Cu from 1,540m
-- HAD163
-- 86m @ 1.2 g/t Au & 0.04 % Cu from 1,415m
-- HAD167
-- 78m @ 1.9 g/t Au & 0.19 % Cu from 1,516m
-- HAD152W5
-- 27m @ 1.4 g/t Au & 0.06 % Cu from 2,042m
Northern Breccia
-- HAD098W7
-- 84m @ 3.2 g/t Au & 0.14 % Cu from 1,008m
-- 78m @ 1.2 g/t Au & 0.28 % Cu from 1,242m
-- including 32m @ 2.4 g/t Au & 0.40 % Cu from 1,260m
Shaun Day, Managing Director of Greatland Gold plc, commented: "
Havieron achieved a significant milestone with the exploration
decline development extending beyond the 1,000 metre mark. The
accelerated rate of advancement reflects the improved ground
conditions.
"The growth drilling programme at Havieron continues to confirm
and expand the high-grade extensions to the known mineralisation in
the Eastern Breccia and Northern Breccia zones.
"The last twelve months of impressive growth drilling results
supports the expectation for Havieron to deliver an expanded
mineral resource estimate."
In addition to this release, a PDF version of this report with
supplementary information can be found at the Company's website:
https://greatlandgold.com/investors/regulatory-news/
Enquiries:
Greatland Gold PLC info@greatlandgold.com
Shaun Day www.greatlandgold.com
SPARK Advisory Partners Limited (Nominated
Adviser) +44 (0)20 3368
Andrew Emmott/James Keeshan 3550
Berenberg (Joint Corporate Broker and Financial
Adviser) +44 (0)20 3207
Matthew Armitt/ Jennifer Lee/ Jack Botros 7800
Canaccord Genuity (Joint Corporate Broker
and Financial Adviser) +44 (0)20 7523
James Asensio/Patrick Dolaghan 8000
SI Capital Limited (Joint Broker) +44 (0)14 8341
Nick Emerson/ Sam Lomanto 3500
Gracechurch Group (Media and Investor Relations) +44 (0)20 4582
Harry Chathli/Alexis Gore/Henry Gamble 3500
Further Information on Drilling and Operations at Havieron
The Havieron gold-copper deposit is centered on a deep magnetic
anomaly located 45km east of Telfer in the Paterson Province where
exploration drilling by Greatland during 2018 resulted in the
discovery of gold and copper ore under 420 metres of post
mineralisation cover. The Joint Venture commenced drilling during
the June 2019 quarter and has completed 283,084 metres of drilling
from 342 drill holes to date (excluding holes in progress,
abandoned holes or drill holes not yet sampled).
A further 13,500 metres of drilling from 16 new holes have been
completed since the last update ("Havieron Exploration and
Development Update", RNS dated 27 October 2022). Assay results are
reported from 3 new holes completed during this period and from 13
holes completed during the previous period (Figures 1 and 2). 4
holes returned significant assay intercepts in excess of 50 gram
metres Au (Au ppm x length). A total of 13 holes have been
completed with assay results pending.
Growth drilling focused on extending the Northern and Eastern
Breccia while camp-scale exploration holes are underway to locate
new discoveries outside the main Havieron mineralised system.
The last twelve months of impressive growth drilling results
supports the opportunity to deliver an expanded Mineral Resource(1)
. Refer to Appendix 2 for all reported results.
At the Eastern Breccia, assays for four holes targeting strike
and depth extensions have been received, with assays for six holes
awaiting. The Eastern Breccia is developed below the 4,100RL(2)
with a footprint of over 500m in strike, up to 200m in width, and
over 250m in vertical extent.
Drilling continues to intercept a combination of broad lower
grade mineralisation and narrow high-grade mineralisation as the
system extents are being defined (Figure 4 and Figure 5).
Results include:
-- HAD098W7
-- 26m @ 2.2 g/t Au & 0.17 % Cu from 1,584m
-- HAD134
-- 82m @ 2.1 g/t Au & 0.25 % Cu from 1,508m
-- including 30m @ 2.4 g/t Au & 0.19 % Cu from 1,540m
-- HAD163
-- 86m @ 1.2 g/t Au & 0.04 % Cu from 1,415m
-- HAD167
-- 78m @ 1.9 g/t Au & 0.19 % Cu from 1,516m
-- HAD152W5
-- 62m @ 0.92 g/t Au & 0.4 % Cu from 1,607m
-- 27m @ 1.4 g/t Au & 0.06 % Cu from 2,042m
Drilling within the core of the Northern Breccia has continued
to define high-grade mineralisation with the potential to provide
additional high-grade material adjacent to the SE Crescent zone
(Figure 3 and Figure 6).
Results include:
-- HAD098W7
-- 84m @ 3.2 g/t Au & 0.14 % Cu from 1,008m
-- 78m @ 1.2 g/t Au & 0.28 % Cu from 1,242m
-- including 32m @ 2.4 g/t Au & 0.4 % Cu from 1,260m
The Havieron growth drilling programme is scheduled to pause in
late December 2022 for the duration of the upcoming summer wet
season.
Results from the 2022 extensive drilling programme will be
incorporated into the geological targeting model and assist in
maximising the value from the 2023 growth drilling programme.
Refer to Appendix 1 for additional information and Appendix 2
for all drillhole results reported during the period.
Development Update
Development of the exploration decline reached a significant
milestone during the month of November 2022 with 1,000 metres of
decline development achieved.
Advance rates have continually improved after the transition to
drill and blasting of the development face and reached the point
where the decline is now in compliance with the currently
forecasted schedule.
Works are also ongoing to progress the necessary approvals and
permits required to commence construction of the infrastructure
which will support, subject to a positive decision to mine,
production at Havieron.
Background to Havieron and Joint Venture Agreement with
Newcrest
The Havieron Gold-Copper project is operated by Newcrest under a
Joint Venture Agreement with Greatland. Newcrest has earned a joint
venture interest of 70% (30% Greatland). Havieron is located
approximately 45km east of Newcrest's Telfer gold mine and, subject
to positive feasibility study and decision to mine, will leverage
the existing infrastructure and processing plant to significantly
reduce the project's capital expenditure and carbon impact for a
low-risk and low-cost pathway to development.
The Joint Venture Agreement includes tolling principles
reflecting the intention of the parties that, subject to a
successful exploration programme and feasibility study and a
positive decision to mine, the resulting joint venture mineralised
material will be processed at Telfer, located 45km west of
Havieron.
A regional map showing the Havieron licence area with regional
targets and adjacent landholdings can be found at:
www.greatlandgold.com/paterson
A version of this release with the full images and diagrams can
be found on the Company's website:
https://greatlandgold.com/investors/regulatory-news/
(1) Refers to Greatland's Updated Mineral Resource as announced
on 3(rd) March 2022
(2) Relative depth. All relative depth (RL) information is
reported in Australian Height Datum ( AHD) +5,000 metres
Figure 1 . 3D Plan view schematic showing the spatial
association of the current growth targets, SE Crescent, Northern
Breccia, NW Pod and Eastern Breccia targets in relation to the
existing mineralised extents. Also highlighted are all newly
reported growth drilling result locations.
Figure 2 . Schematic plan view map showing drill hole locations
and significant intercepts reported in this release superimposed on
the interpreted geology horizontal slice at level 3850mRL.
Previously reported holes are not shown for the sake of clarity.
Note some holes and results appear on multiple sections due to the
sections' orientation and sections' overlap.
Figure 3 . Plan view schematic of a horizontal slice at 3850mRL
through Havieron Mineral System, showing the extents of the 0.5,
1.0 g/t & 2.0g/t Au LeapfrogTM grade shells with highlighted
newly reported intercepts for this period. This diagram highlights
new >50gram metres intersections. Refer to the inset diagram for
relationship to all Havieron drilling.
Figure 4 . Schematic cross section of geology and significant
new drillhole intercepts (looking northwest, Section Line S1, +/-
100m section width, as shown in Figure 2 ). Due to section window
size and orientation holes may appear on multiple sections. This
diagram highlights >50gram metres intersections drilled during
the period.
Figure 5 . Schematic cross section of geology and significant
new drillhole intercepts (looking northeast, Section Line S2, +/-
75m section width , as shown in Figure 2 . Due to section window
size and orientation holes may appear on multiple sections. This
diagram highlights >50gram metres intersections drilled during
the period.
Figure 6 . Schematic cross section of geology and significant
new drillhole intercepts (looking northeast, Section Line S2, +/-
75m section width , as shown in Figure 2 . Due to section window
size and orientation holes may appear on multiple sections. This
diagram highlights >50gram metres intersections drilled during
the period.
Competent Person:
Information in this announcement that relates to exploration
results has been extracted from the following announcements:
"Havieron Exploration and Development Update", dated 27 October
2022 (Greatland)
"Quarterly Exploration Report", dated 27 October 2022 (Newcrest)
"Havieron Exploration and Development Update", dated 8 September
2022 (Greatland)
"Havieron Exploration and Development Update", dated 21 July
2022 (Greatland)
"Quarterly Exploration Report", dated 21 July 2022 (Newcrest)
"Havieron Exploration and Development Update", dated 9 June
2022 (Greatland)
"Havieron Exploration and Development Update", dated 28 April
2022 (Greatland)
"Quarterly Exploration Report", dated 28 April 2022 (Newcrest)
"Havieron Growth Drilling Update", dated 10 March 2022 (Greatland)
"Havieron Resource and Reserves Update", dated 3 March 2022
(Greatland)
"Havieron Exploration Update", dated 28 January 2022 (Greatland)
"Quarterly Exploration Report", dated 28 January 2022 (Newcrest)
"Havieron Exploration and Development Update", dated 9 December
2021 (Greatland)
"Exploration Update", dated 9 December 2021 (Newcrest)
"Havieron Exploration and Development Update", dated 28 October
2021 (Greatland)
"Quarterly Exploration Report", dated 28 October 2021 (Newcrest)
"Havieron Development and Exploration Update" dated 9 September
2021 (Greatland)
"Exploration Update", dated 9 September 2021 (Newcrest)
"Havieron Development and Exploration Update" dated 22 July
2021 (Greatland)
"Quarterly Exploration Report", dated 22 July 2021 (Newcrest)
"Further Excellent Growth Drilling Results at Havieron", dated
10 June 2021 (Greatland)
"Exploration Update", dated 10 June 2021 (Newcrest)
"Excellent Growth Drilling Results at Havieron", dated 29
April 2021 (Greatland)
"Quarterly Exploration Report", dated 29 April 2021 (Newcrest)
"Further Outstanding Infill Drilling Results at Havieron",
dated 11 March 2021 (Greatland)
"Exploration Update", dated 11 March 2021 (Newcrest)
"Newcrest Reports Further Drilling Results at Havieron", dated
28 January 2021 (Greatland)
"Quarterly Exploration Report", dated 28 January 2021 (Newcrest)
"Newcrest Reports Further Drilling Results at Havieron", dated
10 December 2020 (Greatland)
"Exploration Update", dated 10 December 2020 (Newcrest)
"Initial Inferred Mineral Resource Estimate for Havieron",
dated 10 December 2020 (Greatland)
"Initial Inferred Mineral Resource Estimate for Havieron",
dated 10 December 2020 (Newcrest)
"Drilling Results at Havieron Highlight Potential New Eastern
Breccia Target", dated 29 October 2020 (Greatland)
"Quarterly Exploration Report", dated 29 October 2020 (Newcrest)
"Latest Drilling Results at Havieron Highlight Potential Bulk
Tonnage Target", dated 10 September 2020 (Greatland)
"Exploration Update", dated 10 September 2020 (Newcrest)
"Newcrest Identifies New Zone of Breccia Mineralisation at
Havieron", dated 23 July 2020 (Greatland)
"Quarterly Exploration Report", dated 23 July 2020 (Newcrest)
"Further Outstanding Drill Results from Havieron", dated 11
June 2020 (Greatland)
"Exploration Update", dated 11 June 2020 (Newcrest)
"Newcrest Reports Further Outstanding Drill Results at Havieron",
dated 30 April 2020 (Greatland)
"Quarterly Exploration Report", dated 30 April 2020 (Newcrest)
"Newcrest Reports Further Outstanding Drill Results at Havieron",
dated 11 March 2020 (Greatland)
"Exploration and Guidance Update", dated 11 March 2020 (Newcrest)
"Further Outstanding Drill Results at Havieron", dated 30
January 2020 (Greatland)
"Quarterly Exploration Report", dated 30 January 2020 (Newcrest)
"New Outstanding Drill Results at Havieron Extend the Strike
Length of High-Grade Mineralisation", dated 2 December 2019
(Greatland)
"Exploration Update - Havieron", dated 2 December 2019 (Newcrest)
"Further High-Grade Drilling Results from Newcrest's Campaign
at Havieron", dated 24 October 2019 (Greatland)
"Quarterly Exploration Report - September 2019", dated 24
October 2019 (Newcrest)
"Update on Newcrest Drilling Results at Havieron", dated 10
September 2019 (Greatland)
"Exploration Update - Havieron", dated 10 September 2019 (Newcrest)
"First Results from Newcrest's Drilling Campaign at Havieron",
dated 25 July 2019 (Greatland)
"Newcrest Quarterly Exploration Report - June 2019", dated
25 July 2019 (Newcrest)
Information in this announcement has been reviewed and approved
by Mr Damien Stephens, a Member of the Australian Institute
of Mining and Metallurgy (AUSIMM), who has more than 25 years
relevant industry experience. Mr Stephens, an employee of
the Company, has sufficient experience relevant to the style
of mineralisation, type of deposit under consideration, and
to the activity which he is undertaking to qualify as a Competent
Person as defined by the 2012 Edition of the Australasian
Code for Reporting of Exploration Results, Mineral Resources
and Ore Reserves (the JORC Code) and under the AIM Rules -
Note for Mining and Oil & Gas Companies, which outline standards
of disclosure for mineral projects. Mr Stephens consents to
the inclusion in this announcement of the matters based on
this information in the form and context in which it appears.
Mr Stephens confirms that the Company is not aware of any
new information or data that materially affects the information
included in the relevant market announcements, and that the
form and context in which the information has been presented
has not been materially modified.
Additional information on the project can be found on the
Company's website at https://greatlandgold.com/projects/havieron/
In addition to this release, a PDF version of this report
with supplementary information can be found at the Company's
website: www.greatlandgold.com/media/jorc
Notes for Editors:
Greatland Gold plc (AIM:GGP) is a mining development and exploration
company with a focus on precious and base metals. The Company's
flagship asset is the world class Havieron gold-copper deposit
in the Paterson region of Western Australia, discovered by
Greatland and presently under development in Joint Venture
with Newcrest Mining Ltd. Newcrest holds a joint venture interest
of 70% (30% Greatland).
Havieron is located approximately 45km east of Newcrest's
Telfer gold mine and, subject to positive feasibility study
and decision to mine vote, will leverage the existing infrastructure
and processing plant to significantly reduce the project's
capital expenditure and carbon impact for a low-risk and low-cost
pathway to development.
Early works, including a box cut and decline to develop the
Havieron deposit originally commenced in February 2021 and
construction is well advanced. A growth drilling programme
continues at Havieron with a view to further expanding the
understanding and scale of the ore body.
Greatland has a proven track record of discovery and exploration
success. It is pursuing the next generation of tier-one mineral
deposits by applying advanced exploration techniques in under-explored
regions. The Company is focused on safe, low-risk jurisdictions
and is strategically positioned in the highly prospective
Paterson region. Greatland has a total of four projects across
Australia with a focus on becoming a multi-commodity mining
company of significant scale.
APPIX I
Havieron Project (Greatland Gold plc - Newcrest Joint Venture ):
JORC Table 1
Section 1 Sampling Techniques and Data
Criteria Commentary
================== ====================================================================
Sampling Core samples are obtained from core drilling in Proterozoic
techniques basement lithologies. PQ-HQ and NQ diameter core was
drilled on a 6m run. Core was cut using an automated
core-cutter and half core sampled at 1m intervals with
breaks for major geological changes. Sampling intervals
range from 0.2 - 1.0m. Cover sequences were not sampled.
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Drilling Permian Paterson Formation cover sequence was drilled
techniques using mud rotary drilling. Depths of cover typically
observed to approximately 420m vertically below surface.
Steel casing was emplaced to secure the pre-collar.
Core drilling was advanced from the base of the cover
sequence with PQ3, HQ3 and NQ2 diameter coring configuration.
Core from inclined drill holes is oriented on 3m and
6m runs using an electronic core orientation tool (Reflex
ACTIII). At the end of each run, the bottom of hole
position is marked by the driller, which is later transferred
to the whole drill core run length with a bottom of
hole reference line.
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Drill sample Core recovery is systematically recorded from the commencement
recovery of coring to end of hole, by reconciling against driller's
depth blocks in each core tray with data recorded in
the database. Drillers depth blocks provided the depth,
interval of core recovered, and interval of core drilled.
Core recoveries were typically 100%, with isolated zones
of lower recovery.
Cover sequence drilling by the mud-rotary drilling did
not yield recoverable samples.
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Logging Geological logging recorded qualitative descriptions
of lithology, alteration, mineralisation, veining, and
structure (for all core drilled - 15,824m for 21 drill
holes, all intersecting mineralisation), including orientation
of key geological features.
Geotechnical measurements were recorded including Rock
Quality Designation (RQD) fracture frequency, solid
core recovery and qualitative rock strength measurements.
Magnetic susceptibility measurements were recorded every
metre. The bulk density of selected drill core intervals
was determined at site on whole core samples.
All geological and geotechnical logging was conducted
at the Havieron site.
Digital data logging was captured on diamond drill core
intervals only, and all data validated and stored in
an acQuire database.
All drill cores were photographed, prior to cutting
and/or sampling the core.
The logging is of sufficient quality to support Mineral
Resource estimates.
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Sub-sampling Sampling, sample preparation and quality control protocols
techniques are considered appropriate for the material being sampled.
and sample Core was cut and sampled at the Havieron core processing
preparation facility. Half core samples of between 0.2 and 2.0 m
were collected in pre-numbered calico bags and grouped
in plastic bags for dispatch to the laboratory. Sample
weights typically varied from 0.5 to 8kg. Sample sizes
are considered appropriate for the style of mineralisation.
Drill core samples were freighted by air and road to
the laboratory.
Sample preparation was conducted at the independent
I SO17025 accredited Intertek Laboratory, Perth (Intertek).
Samples were dried at 105(o) C, and crushed to 95% passing
4.75mm, and the split to obtain up to 3kg sub-sample,
which was pulverised (using LM5) to produce a pulped
product with the minimum standard of 95% passing 106<MU>m.
Routine grind size analysis is conducted.
Duplicate samples were collected from crush and pulp
samples at a rate of 1:20. Duplicate results show an
acceptable level of variability for the material sampled
and style of mineralisation.
Periodic size checks (1:20) for crush and pulp samples
and sample weights are provided by the laboratory and
recorded in the acQuire database.
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Quality of Assaying of drill core samples was conducted at Intertek.
assay data All samples were assayed for 48 elements using a 4-acid
and laboratory digestion followed by ICP-AES/ICP-MS determination (method
tests 4A/MS907), which is considered to provide a total assay
for copper. Gold analyses were determined by 50g fire
assay with AAS finish (method FA50N/AA), which is considered
to provide a total assay for gold.
Sampling and assaying quality control procedures consisted
of inclusion of certified reference material (CRMs),
coarse residue and pulp duplicates with each batch (at
least 1:20).
Assays of quality control samples were compared with
reference samples in acQuire database and verified as
acceptable prior to use of data from analysed batches.
Laboratory quality control data, including laboratory
standards, blanks, duplicates, repeats and grind size
results are captured in the acQuire database and assessed
for accuracy and precision for recent data.
Extended quality control programmes including pulp samples
submitted to an umpire laboratory and combined with
more extensive re-submission programmes have been completed.
Analysis of the available quality control sample assay
results indicates that an acceptable level of accuracy
and precision has been achieved and the database contains
no analytical data that has been numerically manipulated.
The assaying techniques and quality control protocols
used are considered appropriate for the data to be used
for reporting exploration drilling results.
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Verification Sampling intervals defined by the geologist are electronically
of sampling assigned sample identification numbers prior to core
and assaying cutting. Corresponding sample numbers matching pre-labelled
calico bags are assigned to each interval.
All sampling and assay information were stored in a
secure acQuire database with restricted access.
Electronically generated sample submission forms providing
the sample identification number accompany each submission
to the laboratory. Assay results from the laboratory
with corresponding sample identification are loaded
directly into the acQuire database.
Assessment of reported significant assay intervals was
verified by re-logging of diamond drill core intervals
and assessment of high resolution core photography.
The verification of significant intersections has been
completed by company personnel and the Competent Person/Qualified
Person.
No adjustments are made to assay data, and no twinned
holes have been completed.
There are no currently known drilling, sampling, recovery,
or other factors that could materially affect the accuracy
or reliability of the data.
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Location Drill collar locations were surveyed using a differential
of data points GPS with GNSS with a stated accuracy of +/- 0.5m for
all drill holes reported.
Drill rig alignment was attained using an electronic
azimuth aligner. Downhole survey was collected at 6-12m
intervals in the cover sequence, and every 6 to 30m
in diamond drill core segments of the drill hole using
single shot (Axis Mining Champ Gyro). The single shot
surveys have been validated using continuous survey
to surface (Axis Mining Champ) along with a selection
of drill holes re-surveyed by an external survey contactor
using a DeviGyro tool - confirming sufficient accuracy
for downhole spatial recording.
A LIDAR survey was completed over the project area in
Nov 2019 which was used to prepare a DEM / topographic
model for the project with a spatial accuracy of +/-
0.1m vertical and +/- 0.3m horizontal. The topography
is generally low relief to flat, elevation within the
dune corridors in ranges between 250-265m Australian
Height Datum (AHD) steepening to the southeast. All
collar coordinates are provided in the Geocentric Datum
of Australian (GDA20 Zone 51). All relative depth information
is reported in AHD +5000m.
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Data spacing Within the South-East Crescent and Breccia zone drill
and distribution hole spacing ranges from 50 to 100m, to 50 by 50m within
the resource extents. Outside the initial resource boundary
drill hole spacing ranges from 50 to 200m in lateral
extent within the breccia zone over an area of 2km(2)
. The data spacing is sufficient to establish the degree
of geological and grade continuity.
Significant assay intercepts remain open. Further drilling
is required to determine the extent of currently defined
mineralisation. No sample compositing is applied to
samples.
Drilling intersects mineralisation at various angles.
--------------------------------------------------------------------
Orientation Drill holes exploring the extents of the Havieron mineral
of data in system intersect moderately dipping carbonate and siliclastic
relation to sedimentary facies, mineralised breccia and sub-vertical
geological intrusive lithologies. Geological modelling has been
structure interpreted from historic and Newcrest drill holes.
Variable brecciation, alteration and sulphide mineralisation
is observed with a footprint with dimensions of 650m
x 350m trending in a north west orientation and over
1000m in vertical extent below cover.
The subvertical southeast high grade arcuate crescent
sulphide zone has an average thickness of 20m and has
been defined over a strike length of up to 550m, and
extended to over 700m in vertical extent below cover.
Drilling direction is oriented to intersect the steeply
dipping high-grade sulphide mineralisation zones at
an intersection angle of greater than 40 degrees. The
drilled length of reported intersections is typically
greater than true width of mineralisation.
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Sample security The security of samples is controlled by tracking samples
from drill rig to database.
Drill core was delivered from the drill rig to the Havieron
core yard every shift. On completion of geological and
geotechnical logging, core processing was completed
by Newcrest personnel at the Havieron facility.
High resolution core photography and cutting of drill
core was undertaken at the Havieron core processing
facilities.
Samples were freighted in sealed bags by air and road
to the Laboratory, and in the custody of Newcrest representatives.
Sample numbers are generated directly from the database.
All samples are collected in pre-numbered calico bags.
Verification of sample numbers and identification is
conducted by the laboratory on receipt of samples, and
sample receipt advise issued to Newcrest.
Details of all sample movement are recorded in a database
table. Dates, Hole ID sample ranges, and the analytical
suite requested are recorded with the dispatch of samples
to analytical services. Any discrepancies logged at
the receipt of samples into the analytical services
are validated.
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Audits or Internal reviews of core handling, sample preparation
reviews and assays laboratories were conducted on a regular
basis by both project personnel and owner representatives.
In the Competent Person's opinion, the sample preparation,
security and analytical procedures are consistent with
current industry standards and are entirely appropriate
and acceptable for the styles of mineralisation identified
and will be appropriate for use in the reporting of
exploration results and Mineral Resource estimates.
There are no identified drilling, sampling or recovery
factors that materially impact the adequacy and reliability
of the results of the drilling programme in place at
the Havieron Project.
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Section 2 Reporting of Exploration Results
Criteria Commentary
Mineral tenement The Havieron Project is entirely contained within mining
and land tenure tenement M45/1287, which is jointly owned by Greatland
status Pty Ltd and Newcrest Operations Limited. Newcrest has
entered into a Joint Venture Agreement (effective 30
November 2020) and Farm-In Agreement (effective 12 March
2019) with Greatland Pty Ltd and Greatland Gold plc.
Newcrest is the manager of the Havieron Project and
holds a 70% interest (Greatland Gold holds a 30% interest).
Newcrest and Jamukurnu-Yapalikurnu Aboriginal Corporation
(JYAC, formerly WDLAC) are parties to an ILUA which
relates to the use of native title land for Newcrest's
current operations at Telfer and its activities within
a 60km radius around Telfer and includes its exploration
activities at Havieron. The parties have agreed that
the ILUA will apply to any future development activities
by the Joint Venture Participants (Newcrest and Greatland
Gold) at Havieron.
The mining tenement M45/1287 wholly replaces the 12
sub-blocks of exploration tenement E45/4701 (former
part of the exploration tenement on which the Havieron
Project is based) and was granted on 10 September 2020.
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Exploration Newcrest completed six core holes in the vicinity of
done by other the Havieron Project from 1991 to 2003. Greatland Gold
parties completed drill targeting and drilling of nine Reverse
Circulation (RC) drill holes with core tails for a total
of approximately 6,800m in 2018. Results of drilling
programmes conducted by Greatland Gold have previously
been reported on the Greatland Gold website.
Drilling has defined an intrusion-related mineral system
with evidence of breccia and massive sulphide-hosted
higher-grade gold-copper mineralisation.
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Geology The Havieron Project is located within the north-western
exposure of the Palaeo-Proterozoic to Neoproterozoic
Paterson Orogen (formerly Paterson Province), 45 km
east of Telfer. The Yeneena Supergroup hosts the Havieron
prospect and consists of a 9km thick sequence of marine
sedimentary rocks and is entirely overlain by approximately
420m of Phanerozoic sediments of the Paterson Formation
and Quaternary aeolian sediments.
Gold and copper mineralisation at Havieron consist of
breccia, vein and massive sulphide replacement gold
and copper mineralisation typical of intrusion-related
and skarn styles of mineralisation. Mineralisation is
hosted by metasedimentary rocks (meta-sandstones, meta-siltstones
and meta-carbonate) and intrusive rocks of an undetermined
age. The main mineral assemblage contains well developed
pyrrhotite-chalcopyrite and pyrite sulphide mineral
assemblages as breccia and vein infill, and massive
sulphide lenses. The main mineralisation event is associated
with amphibole-carbonate-biotite-sericite-chlorite wall
rock alteration. Drilling has partially defined the
extents of mineralisation which are observed over 650m
by 350m within an arcuate shaped mineralised zone, and
to depths of up to 1400m below surface.
-------------------------------------------------------------------
Drill hole As provided.
Information
-------------------------------------------------------------------
Data aggregation Significant assay intercepts are reported as (A) length-weighted
methods averages exceeding 1.0g/t Au greater than or equal to
10m, with a maximum of 5m consecutive internal dilution;
and (B) length-weighted averages exceeding 0.2g/t Au
for greater than or equal to 20m, with a maximum of
10m consecutive internal dilution, and (C) intervals
of >30g/t which are greater or equal to 30 gram metres
(Au_ppm x length). No top cuts are applied to intercept
calculations.
-------------------------------------------------------------------
Relationship Significant assay intervals reported represent apparent
between mineralisation widths. Drilling is not always perpendicular to the
widths and dip of mineralisation and true widths are less than
intercept downhole widths. Estimates of true widths will only
lengths be possible when all results are received, and final
geological interpretations have been completed.
-------------------------------------------------------------------
Diagrams As provided.
-------------------------------------------------------------------
Balanced reporting This is the twenty-fourth release of Exploration Results
for this project made by Newcrest. Exploration results
have been reported by Newcrest since July 2019.
Earlier reporting of exploration programs conducted
by Newcrest and Greatland Gold have previously been
reported. Exploration drilling programmes are ongoing
and further material results will be reported in subsequent
Newcrest releases.
-------------------------------------------------------------------
Other substantive Nil
exploration
data
-------------------------------------------------------------------
Further work Growth drilling is targeting the extensions of the 30
June 2022 Indicated and Inferred Mineral Resource estimate
and to define the limits of the Havieron mineralised
system.
-------------------------------------------------------------------
APPIX II
Drillhole Data and Au- Cu Significant Intersections
Havieron Project, Paterson Province, Western Australia
Reporting Criteria: Intercepts reported are downhole drill width
(not true width) Au >0.20ppm (0.2g/t Au) and minimum 20m
downhole width with maximum consecutive internal dilution of 10m.
Average grades are based on length-weighting of samples grades.
Also highlighted are high grade intervals of Au >1.0ppm (1g/t
Au) and minimum 10m downhole width with maximum consecutive
internal dilution of 5m, and intervals of >30g/t which are
greater or equal to 30 gram metres (Au_ppm x length) are tabled.
Gold and copper grades are reported to two significant figures, the
downhole lengths are rounded to 0.1m which may cause some apparent
discrepancies in interval widths. Samples are from core drilling
which is PQ, HQ or NQ in diameter. Core is photographed and logged
by the geology team before being cut. Half core PQ, HQ and NQ
samples are prepared for assay and the remaining material is
retained in the core farm for future reference. Each assay batch is
submitted with duplicates and standards to monitor laboratory
quality. Total depth (end of hole) is rounded to one decimal place
for reporting purposes. Collars denoted with a * show partial
results, with further significant assays to be reported in
subsequent exploration updates.
Hole ID Hole Easting Northing RL Total Azimuth Dip From To Interval Au Cu Cut
Type (m) (m) (m) Depth (m) (m) (m) ppm (pct) off
(m)
HAD086W6^ MR-DD 464229 600140 5258 1177.5 85 75 No Significant Results
------- -------- --------- ----- ------- -------- ------ ----------------------------------------------
HAD098W4^ MR-DD 463148 595784 5255 1143.2 47 -74 No Significant Results
------- -------- --------- ----- ------- -------- ------ ----------------------------------------------
HAD098W5^ MR-DD 463275 598285 5254 780.7 68 -60 No Significant Results
------- -------- --------- ----- ------- -------- ------ ----------------------------------------------
0.2
g/t
HAD098W6 MR-DD 464308 597211 5260 865 76 -56 1065 1094 29 0.48 0.06 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
0.2
g/t
HAD098W6 MR-DD 1140 1196 56 0.55 0.12 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
0.2
g/t
HAD098W7 MR-DD 464463 598018 5257 1634.5 211 -80 896 928 32 0.56 0.11 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
0.2
g/t
HAD098W7* MR-DD 1008 1092 84 3.2 0.14 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
0.2
g/t
HAD098W7* MR-DD 1128 1210 82 0.70 0.09 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
0.2
g/t
HAD098W7* MR-DD 1242 1320 78 1.2 0.28 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
1.0
g/t
HAD098W7* MR-DD incl. 1260 1292 32 2.5 0.40 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
0.2
g/t
HAD098W7 MR-DD 1334 1358 24 0.78 0.17 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
0.2
g/t
HAD098W7 MR-DD 1408 1434 26 0.21 0.11 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
0.2
g/t
HAD098W7 MR-DD 1496 1566 70 0.61 0.04 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
0.2
g/t
HAD098W7* MR-DD 1584 1610 26 2.2 0.17 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
0.2
g/t
HAD098W7 MR-DD 1678 1716 38 0.77 0.17 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
1.0
g/t
HAD098W7 MR-DD incl. 1678 1688 10 1.1 0.26 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
HAD098W8 MR-DD 464463 598018 5257 1045.6 211 -80 Assays Pending
------- -------- --------- ----- ------- -------- ------ ----------------------------------------------
0.2
g/t
HAD134 MR-DD 464463 598018 5257 1040.3 211 -80 1508 1590 82 2.1 0.25 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
1.0
g/t
HAD134* MR-DD incl. 1540 1570 30 2.4 0.19 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
1.0
g/t
HAD134 MR-DD incl. 1576 1588 12 3 0.28 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
0.2
g/t
HAD134 MR-DD 1620 1690 70 0.34 0.05 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
0.2
g/t
HAD134 MR-DD 1742 1768 26 0.44 0 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
0.2
g/t
HAD134 MR-DD 1780 1841 61 0.31 0.09 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
HAD134W1 MR-DD 464625 598152 5258 1888.5 199 -77 Assays Pending
------- -------- --------- ----- ------- -------- ------ ----------------------------------------------
HAD145AW5^ MR-DD 464338 598260 5258 1772.8 218 -81 No Significant Results
------- -------- --------- ----- ------- -------- ------ ----------------------------------------------
0.2
g/t
HAD152W5 MR-DD 464338 598260 5258 886.2 218 -81 1494 1530 36 0.29 0.07 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
0.2
g/t
HAD152W5* MR-DD 1607 1669 62 0.92 0.4 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
0.2
g/t
HAD152W5 MR-DD 1994 2022 28 0.52 0.07 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
0.2
g/t
HAD152W5 MR-DD 2042 2069 27 1.4 0.06 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
0.2
g/t
HAD152W5 MR-DD 2109 2141 32 0.47 0.03 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
HAD156^ MR-DD 464338 598260 5258 770.5 218 -81 No Significant Results
------- -------- --------- ----- ------- -------- ------ ----------------------------------------------
HAD157^ MR-DD 464444 598227 5258 1681.2 217 -80 No Significant Results
------- -------- --------- ----- ------- -------- ------ ----------------------------------------------
HAD158^ MR-DD 464490 598141 5258 1718.9 90 -65 No Significant Results
------- -------- --------- ----- ------- -------- ------ ----------------------------------------------
HAD159^ MR-DD 464490 598141 5258 1725 198 -80 No Significant Results
------- -------- --------- ----- ------- -------- ------ ----------------------------------------------
HAD160^ MR-DD 463660 596898 5255 1083.4 90 -63 No Significant Results
------- -------- --------- ----- ------- -------- ------ ----------------------------------------------
0.2
g/t
HAD163 MR-DD 464076 597251 5260 1917.7 29 -77 1415 1501 86 1.2 0.04 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
1.0
g/t
HAD163 MR-DD incl. 1452 1478 26 1.9 0.09 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
0.2
g/t
HAD163 MR-DD 1582 1604 22 0.66 0.05 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
HAD163W1 MR-DD 464061 599516 5260 1174.6 198 -80 Assays Pending
------- -------- --------- ----- ------- -------- ------ ----------------------------------------------
HAD164W2 MR-DD 464558 599018 5258 933.8 270 -65 Assays Pending
------- -------- --------- ----- ------- -------- ------ ----------------------------------------------
HAD166 MR-DD 463672 596940 5255 2323.3 30 -75 Assays Pending
------- -------- --------- ----- ------- -------- ------ ----------------------------------------------
HAD166W1 MR-DD 463401 597059 5254 2172.2 33 -64 Assays Pending
------- -------- --------- ----- ------- -------- ------ ----------------------------------------------
HAD166W2 MR-DD 463201 597817 5256 2162.2 74 -65 Assays Pending
------- -------- --------- ----- ------- -------- ------ ----------------------------------------------
0.2
g/t
HAD167** MR-DD 464778 598425 5258 1795.1 225 -66 1516 1594 78 1.9 0.19 Au
------- -------- --------- ----- ------- -------- ------ ----- ----- --------- ----- ------ ------
HAD168 MR-DD 464778 598425 5258 1846.4 225 -67 Assays Pending
------- -------- --------- ----- ------- -------- ------ ----------------------------------------------
HAD168W1 MR-DD 463592 597379 5264 1540.1 38 -61 Assays Pending
------- -------- --------- ----- ------- -------- ------ ----------------------------------------------
HAD168W2 MR-DD 463591 597381 5264 1836.8 211 -80 Assays Pending
------- -------- --------- ----- ------- -------- ------ ----------------------------------------------
HAD169 MR-DD 463591 597381 5264 1203 38 -61 Assays Pending
------- -------- --------- ----- ------- -------- ------ ----------------------------------------------
HAD170 MR-DD 463591 597381 5264 1849.1 38 -61 Assays Pending
------- -------- --------- ----- ------- -------- ------ ----------------------------------------------
MEC001W1 MR-DD 463591 597381 5264 1098.7 38 -61 No Significant Results
------- -------- --------- ----- ------- -------- ------ ----------------------------------------------
NOR002 MR-DD 464624 598150 5258 1524.4 225 -65 No Significant Results
------- -------- --------- ----- ------- -------- ------ ----------------------------------------------
(#) drilling in progress. **partial intercept, assays pending.
^updated intercept. ^^previously reported intercept.
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END
UPDUWABRUBUURRA
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