TIDMGGP
RNS Number : 2918O
Greatland Gold PLC
09 June 2022
9 June 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
South East Crescent high grade zone extended which following
recent Growth Drilling
is now identified at extending over 1,000 metres of continuous
mineralisation, and remains open
High grade results within the Northern Breccia continue to
demonstrate the potential for
further high-grade mineralisation adjacent to the South East
Crescent Zone
Extensive Growth Drilling programme planned across the next
twelve months,
which provides substantial opportunity to expand Havieron
Greatland Gold plc (AIM:GGP), a 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.
Highlights
-- Seven drill rigs currently onsite, all focused on growth
targeting:
-- South East Crescent: continuous mineraliation identified
across 1,000 vertical meters and remains open. Drilling continuing
to progressively test for extensions to the South East Crescent,
with drilling planned up to 400 metres below the Updated Mineral
Resource(1)
-- Eastern Breccia: drilling continuing to define the greater
mineralised footprint of the Eastern Breccia, including definition
of higher-grade zones recently announced
-- Northern Breccia: drilling aimed at extending high-grade
zones of mineralisation at depth
-- New Targets: drilling continuing to define geophysical
targets outside of the main Havieron system with follow-up drilling
planned at regional targets on the Havieron mining lease
New drilling results
-- Drilling in the South East Crescent has extended the high
grade zone down a further 100 metres with Crescent zone having now
been continuously intersected to over 1,000 vertical metres (3800m
RL(2) ) and remaining open at depth :
-- HAD133W9 returned 85.8m @ 3.0g/t Au & 0.06% Cu from
1,604m and 25.3m @ 1.1g/t Au & 0.08% Cu from 1,471.1m
-- High grade results in the Northern Breccia reinforce the
potential for further high-grade sulphide mineralisation adjacent
to the South East Crescent Zone:
-- HAD055W4 returned 149.9m @ 2.7 g/t Au & 0.12% Cu from
877.4m,
-- Including 13.9m @ 22.8 g/t Au & 0.46% Cu from
1,013.4m
-- HAD055W5 returned 39.6m @ 2.8 g/t Au & 0.07% Cu from
983.6m,
-- Including 0.5m @ 96.0 g/t Au & 0.10% Cu from 1,020.7m
-- Early Works improvements: Construction activities by Newcrest
are progressing including:
-- An exploration decline advance of 377.5 metres as at end of
May 2022
-- Fuel facility fully commissioned
The decline experienced improved ground conditions in the June
quarter. Advance rates have improved after c hanges in the design
of the decline brought forward the first downward spiral to the
current advance position. This has allowed the decline to
transition into better ground conditions. The Havieron fuel
facility has now been completed and commissioned into
operation.
-- Feasibility Study work by Newcrest is progressing and k ey
contracts have been awarded. The Feasibility Study is still
forecast to be delivered in the December 2022 quarter(3) .
Shaun Day, M anaging Director of Greatland Gold plc, commented:
" The growth drilling programme continues to expand Havieron's
mineralised system. The existing high grade mineralised zone of the
South East Crescent now extends a further 100 metres below our
previous Mineral Resource estimate. Testament to the scale of
Havieron, there is now continuous mineralisation observed over
1,000 metres of vertical extent with the system remaining open at
depth.
With an extensive growth drilling programme planned over the
next twelve months, there is tremendous potential to further expand
the Havieron resource and unlock the true scale and value of the
broader system.
Pleasingly, the decline has encountered better ground
conditions, resulting in recent improvements to the decline
advancement rates."
(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
(3) Newcrest market update to Australian Stock Exchange on
12(th) October 2021
Some statements contained in this announcement are or may be
forward-looking statements. Actual results may differ from those
expressed in such statements, depending on a variety of factors
Significant New Results (intercepts are reported as downhole
width not true width)
South East Crescent
-- HAD133W9
-- 25.3m @ 1.1g/t Au & 0.08% Cu from 1,471.1m,
-- 85.8m @ 3.0g/t Au & 0.06% Cu from 1,604m
Northern Breccia
-- HAD055W4
-- 149.9m @ 2.7 g/t Au & 0.12% Cu from 877.4m,
-- incl. 13.9m @ 22.8 g/t Au & 0.46% Cu from 1,013.4m
-- HAD055W5
-- 76.5m @ 1.1 g/t Au & 0.11% Cu from 892.5m,
-- incl. 11.4m @ 1.9 g/t Au & 0.12% Cu from 921m
-- 39.6m @ 2.8 g/t Au & 0.07% Cu from 983.6m,
-- incl. 0.5m @ 96.0 g/t Au & 0.10% Cu from 1,020.7m
-- HAD055W6
-- 43.2m @ 1.4 g/t Au & 0.08% Cu from 978.3m,
-- incl. 10.9m @ 2.3 g/t Au & 0.05% Cu from 978.3m
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 +44 (0)20 3709 4900
Shaun Day info@greatlandgold.com
www.greatlandgold.com
SPARK Advisory Partners Limited (Nominated
Adviser)
Andrew Emmott/James Keeshan +44 (0)20 3368 3550
Berenberg (Joint Corporate Broker and Financial
Adviser)
Matthew Armitt/ Jennifer Lee/ Detlir Elezi +44 (0)20 3207 7800
Canaccord Genuity (Joint Corporate Broker
and Financial Adviser)
James Asensio/Patrick Dolaghan +44 (0)20 7523 8000
Hannam & Partners (Joint Corporate Broker
and Financial Adviser)
Andrew Chubb/Matt Hasson/Jay Ashfield +44 (0)20 7907 8500
SI Capital Limited (Joint Broker)
Nick Emerson/Alan Gunn +44 (0)14 8341 3500
Luther Pendragon (Media and Investor Relations)
Harry Chathli/Alexis Gore/Tan Siddique +44 (0)20 7618 9100
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 243,618 metres of drilling
from 295 drill holes to date (excluding holes in progress,
abandoned holes or drill holes not yet sampled).
Drilling activities have produced a further 6,174 metres of
drilling from 10 new holes since the last update ("Havieron
Exploration and Development Update", RNS dated 28 April 2022). New
assay results are reported from 7 holes. 4 holes returned
significant assay intercepts in excess of 50 gram metres Au (Au ppm
x length metres).
Growth drilling is focused on potential extensions at the South
East Crescent Zone, Northern Breccia and Eastern Breccia, while
regional exploration holes are planned to locate new discoveries
outside the main Havieron mineralised system. Assays reported
include drilling from:
-- South East Crescent Deeps - assay results reported for one
drill hole.
-- Northern Breccia - assay results are reported for three drill
holes.
-- Eastern Breccia - assay results reported for one drill hole,
with five holes awaiting assays.
-- First pass drill testing of geophysical regional targets
outboard of the Havieron system - two drill holes results from step
out drilling north and south of the Havieron system.
There are now seven rigs on site, and the number of drill holes
completed is expected to increase in future updates. The JV is
targeting an extensive growth drilling programme in the 12 months
to 30 June 2023 which has the potential to again expand the
Havieron resource. Refer to Appendix 2 for all reported
results.
At the South East Crescent Deeps Target, growth drilling
continued, defining high grade mineralisation below the Updated
Mineral Resource, which remains open at depth. Results were
received from one drill hole - HAD133W9.
Results from HAD133W9 have extended the Crescent high grade zone
by a further 100 metres to over 1,000 vertical metres (3800m RL) of
continuous high grade crescent style mineralisation now defined.
Further drilling is planned to test the potential for high-grade
resource extensions for a further vertical extension of 300m (3500m
RL).
Results include:
-- HAD133W9
-- 85.8m @ 3.0g/t Au & 0.06% Cu from 1,604m,
-- 25.3m @ 1.1g/t Au & 0.08% Cu from 1,471.1m
Northern Breccia infill drilling has confirmed known high-grade
mineralisation within the core of the Northern Breccia, adjacent to
the high grade South East Crescent.
Results include:
-- HAD055W4
-- 149.9m @ 2.7 g/t Au & 0.12% Cu from 877.4m,
-- incl. 13.9m @ 22.8 g/t Au & 0.46% Cu from 1,013.4m
-- HAD055W5
-- 76.5m @ 1.1 g/t Au & 0.11% Cu from 892.5m,
-- incl. 11.4m @ 1.9 g/t Au & 0.12% Cu from 921m
-- 39.6m @ 2.8 g/t Au & 0.07% Cu from 983.6m,
-- incl. 0.5m @ 96.0 g/t Au & 0.10% Cu from 1,020.7m
-- HAD055W6
-- 43.2m @ 1.4 g/t Au & 0.08% Cu from 978.3m,
-- incl. 10.9m @ 2.3 g/t Au & 0.05% Cu from 978.3m
At the Eastern Breccia, assays for one additional hole were
reported (HAD104W1) with no significant mineralisation intercepted
(Figure 2). This hole was drilled towards the east, at the junction
between the currently defined Eastern Breccia mineralisation and
the base of the South East Crescent Zone. In addition, 6 new holes
were successfully drilled into the Eastern Breccia complex with
assays pending.
Drilling to test geophysical targets outside of the known
Havieron system, including evaluating the Havieron dolerite at
multiple intervals north and south of the Havieron mineralised pipe
revealed no significant intercepts from two drill holes (HAD154
& HAD155). Further drilling is planned external to Havieron in
the coming months.
The JV is targeting an extensive growth drilling programme in
the 12 months to 30 June 2023 which has the potential to further
expand the Havieron resource. Growth drilling continues to show
potential for resource additions outside of the existing Inferred
Mineral Resource limits, including:
-- Extension of the South East Crescent Zone at depth below the
Updated Mineral Resource;
-- Potential for additional material in the Eastern Breccia,
including higher grade "Crescent" like material, currently open
along strike and at depth;
-- Expansion of multiple higher-grade zones including Northern
Breccia and North West Pod; and,
-- Additionally, drilling is continuing to target geophysical
targets outside of the main Havieron system.
Refer to Appendix 1 for additional information and Appendix 2
for all drillhole results reported during the period.
Development Update
Newcrest has advised development of the exploration decline
experienced improved ground conditions in the June quarter. Advance
rates have recently improved after c hanges in the design of the
decline have brought forward the first downward spiral to the
current advance position. This has allowed the decline to
transition into better ground conditions sooner. The Havieron fuel
facility has now been completed and commissioned into
operation.
Background to Havieron and Joint Venture Agreement with
Newcrest
The Havieron copper-gold project is operated by Newcrest under a
Joint Venture Agreement with Greatland. Newcrest has earned a joint
venture interest of 70% (30% Greatland). Newcrest may also acquire
an additional 5% joint venture interest at fair market value (under
the principles of the Joint Venture Agreement) and, if exercised,
Newcrest will be entitled to an overall joint venture interest of
75% (Greatland 25%). Greatland and Newcrest continued to progress
the process to determine the option price for the 5% interest in
accordance with the Joint Venture Agreement during the period.
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/
Competent Person:
Information in this announcement that relates to exploration
results has been extracted from the following announcements:
"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.
Havieron is located approximately 45km east of Newcrest's
Telfer gold mine and, subject to positive 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-cost pathway to development. An
extensive growth drilling programme is presently underway
at Havieron with a maiden Pre-Feasibility Study released on
the South-East Crescent on 12 October 2021. Construction of
the box cut and decline to develop the Havieron deposit commenced
in February 2021.
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 six 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 techniques Samples are obtained from diamond core drilling in Proterozoic
basement lithologies.
Core is cut along the orientation line and one half
consistently sampled.
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 or at breaks for major
geological changes. Sampling intervals range from 0.2
- 2.0m. Sample weights were typically between 0.7 and
5.6 kg. Cover sequences were not sampled.
-------------------- ------------------------------------------------------------------
Drilling techniques Permian Paterson Formation cover sequence was drilled
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 double tube
coring configuration with minor HQ and PQ triple tube
configuration. Navi drilling was undertaken to start
wedged holes from parent holes.
Core from inclined drill holes are oriented on 3m and
6m runs using an electronic core orientation tool (Reflex
ACTIII or equivalent). 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.
-------------------- ------------------------------------------------------------------
Drill sample Core recovery is systematically recorded from the commencement
recovery of coring to end of hole, by reconciling recovered core
measurements against driller's depth blocks in each
core tray, as recorded in the database. Driller's depth
blocks provided the depth, interval of core recovered,
and interval of core drilled. Core recoveries below
the cover sequence were typically 100%, with isolated
zones of lower recovery. Cover sequence drilling by
the mud-rotary drilling technique does not yield recoverable
samples.
Those sections of wedge holes that were Navi drilled
did not produce recoverable sample material and have
not been sampled.
No specific measures have been taken to maximise recovery,
other than employing professional and well respected
drillers;
There is no discernible relationship between sample
recovery and the grade of any important variable.
-------------------- ------------------------------------------------------------------
Logging Geological logging recorded qualitative descriptions
of lithology, alteration, mineralisation, veining, and
structure , including orientation of key geological
features.
Geotechnical measurements including Rock Quality Designation
(RQD) fracture frequency, solid core recovery and qualitative
rock strength measurements were recorded by Geologists
or Geotechnical Engineers.
All geological and geotechnical logging was conducted
at the Havieron site.
Magnetic susceptibility measurements were recorded every
metre. The bulk density of selected drill core intervals
was determined at site on whole core samples.
Digital data logging was captured on diamond drill core
intervals only, and all data validated and stored in
a Datashed database.
All drill cores were photographed (wet and dry), prior
to cutting and/or sampling the core.
The logging is of sufficient quality to support Mineral
Resource estimates, mining studies and metallurgical
studies
100 percent of recovered core in the basement rocks
has been logged.
-------------------- ------------------------------------------------------------------
Sub-sampling Core was cut and sampled at the Havieron core processing
techniques facilities. Half core samples were collected in pre-numbered
and sample calico bags and grouped into bulk bags for dispatch
preparation to the laboratory. Sample weights typically varied from
0.7 to 5.6kg. Sample sizes are considered appropriate
for the style of mineralisation. Sample lengths typically
ranged from 0.2 to 2m with most samples being 1m in
length. Drill core samples were freighted by air and
road to the laboratory.
Navi drilled sections of holes did not produce recoverable
material and could not be sampled.
Sample preparation was conducted at the independent
ISO17025 accredited Intertek Laboratory, Perth (Intertek).
Samples were dried at 105(o) C, and crushed to 95% passing
4.75mm, and then 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.
Coarse Crush and Pulp 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 Datashed database. Field Duplicate samples
are not (routinely) taken.
Sampling and sample preparation sizes and quality control
protocols are considered appropriate to the grain size
of the material being sampled.
------------------------------------------------------------------
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 the Datashed database
and verified as acceptable prior to use of data from
analysed batches. Batches failing QA/QC tests were re-submitted
for assay.
Laboratory quality control data, including laboratory
standards, blanks, duplicates, repeats and grind size
results are captured in the Datashed database and assessed
for accuracy and precision for recent data.
Extended quality control programs including pulp samples
submitted to an umpire laboratory.
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 Results and Mineral Resources.
------------------------------------------------------------------
Verification Assessment of reported significant assay intervals was
of sampling verified by re-logging of diamond drill core intervals
and assaying and assessment of high-resolution core photography.
The verification of significant intersections has been
completed by Newcrest personnel and Newcrest's Competent
Person/Qualified Person.
No twinned holes have been drilled, however there are
many 'wedge/daughter' holes that provide close-spaced
intersections in adjacent holes.
Sampling intervals defined by the geologist are electronically
assigned sample identification numbers prior to core
cutting. Corresponding sample numbers matching pre-labelled
calico bags are assigned to each interval. 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 Datashed
database.
No adjustments are made to any assay data.
There are no currently known drilling, sampling, recovery,
or other factors that could materially affect the accuracy
or reliability of the data.
------------------------------------------------------------------
Location of Drill hole collar locations were surveyed using a differential
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 data 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 or equivalent). The single shot
surveys have been validated using continuous survey
to surface (Axis Mining Champ or equivalent) 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.
All collar coordinates are provided in the Geocentric
Datum of Australian (GDA20 Zone 51). All relative depth
(RL) information is reported in AHD +5000m.
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. Easting
and Northing coordinates are provided in the Geocentric
Datum of Australian (GDA20 Zone 51) and all vertical
level information is reported in AHD +5000m.
-------------------- ------------------------------------------------------------------
Data spacing Within the South East Crescent Zone, Breccia Zone and
and distribution Eastern Breccia, drill hole spacing ranges from 50 by
100m, to 50 by 50m within the current resource extents.
Outside the resource boundary drill hole spacing ranges
from 50 to 200m in lateral extent within the Breccia
Zone over an area of 2km2.
Isolated holes test targets away from the Havieron pipe.
The data spacing 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.
Samples have not been composited.
-------------------- ------------------------------------------------------------------
Orientation Drill holes targeting the Crescent Zone are oriented
of data in to intersect the steeply dipping high-grade sulphide
relation to mineralisation zones at an angle of greater than 40
geological degrees. As such, the drilled length of reported intersections
structure is typically greater than true width of mineralisation
in this Zone. Most of these holes also intersect the
adjacent Breccia Zones.
Drill holes targeting the Breccia Zones are oriented
to intersect at angles either broadly perpendicular
to the adjacent Crescent Sulphide Zones, or if drilling
away from the South East Crescent Zone area, at intersections
broadly perpendicular to the elongation of the ovoid
breccia body. Given the lower level of understanding
of the breccia geometries it is not possible to quantify
the relationship between drilled and true length of
reported intersections in these Zones.
The attitudes of the South East Crescent Zone and Main
(Northern) Breccia Zone and the variety in drilling
orientations through such suggest no sample orientation
related biases affect these zones.
The Eastern Breccia, which is interpreted to strike
north-westerly and dip steeply, is intersected almost
exclusively with moderate-steep west-to-east drilling.
-------------------- ------------------------------------------------------------------
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 initially
completed by Newcrest personnel at the Telfer facility
but later done at the Havieron facility once it was
operational.
Samples were freighted in sealed bags by air and road
to the laboratory, 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 advice 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.
-------------------- ------------------------------------------------------------------
Audits or Internal reviews by Newcrest (JV Manager) of the core
reviews handling, sample preparation and assays laboratories
are conducted on a regular basis by both project personnel
and owner representatives and have not identified any
material issues affecting the reliability of the sampling
techniques and data.
In the Competent Person's opinion, the sample preparation,
security and analytical procedures are consistent with
current industry standards and are 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. No drilling,
sampling or recovery factors that materially impact
the reliability of the results of the drilling programme
have been identified.
-------------------- ------------------------------------------------------------------
Section 2 Reporting of Exploration Results
Criteria Commentary
Mineral tenement The Havieron Project is located within mining tenement
and land tenure M45/1287 and is jointly owned by Greatland Pty Ltd and
status Newcrest Operations Limited ("Newcrest") . 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 has earned a joint venture interest of
70% (Greatland 30%). Newcrest also has an option to
acquire a further 5% joint venture interest at fair
market value under the principles outlined in the Joint
Venture Agreement.
Newcrest and the 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 60-km radius around Telfer including
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) at Havieron.
The mining tenement M45/1287 was granted on 10 September
2020.
------------------------------------------------------------------------
Exploration Newcrest completed six core holes in the vicinity of
done by other the Havieron Project from 1991 to 2003. Greatland Gold
parties completed 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 programs conducted
by Greatland have previously been reported on the Greatland
website.
------------------------------------------------------------------------
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 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
a 650m by 350m ovoid area, and to depths of up to 1500m
below surface.
------------------------------------------------------------------------
Drill hole As provided in Appendix II. Refer to previous exploration
Information releases for drillhole information of the previously
reported intercepts highlighted in this report.
------------------------------------------------------------------------
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 with no internal dilution which are greater
or equal to 30 gram metres (Au_ppm x length). No top
cuts are applied to intercept calculations. Refer to
previous exploration releases for drillhole information
of the previously reported intercepts highlighted in
this report and used in the Mineral Resource Estimate.
------------------------------------------------------------------------
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 Figures 1 through 5 as provided.
------------------------------------------------------------------------
Balanced This is the twenty second release of Exploration Results
reporting for this project made by Newcrest and/ or Greatland
Gold. Previous release dates are 25 July 2019, 10 September
2019, 24 October 2019, 2 December 2019, 30 January 2020,
11 March 2020, 30 April 2020, 11 June 2020, 23 July
2020, 10 September 2020, 29 October 2020, 10 December
2020, 28 January 2021, 11 March 2021, 29 April 2021,
10 June 2021, 22 July 2021, 9 September 2021, 28 October
2021 and 9 December 2021, 28 January 2022 and 10 March
2022.
Previous exploration programs conducted by Newcrest
and Greatland have been reported. Exploration drilling
programs are ongoing and further material results will
be reported in subsequent releases.
------------------------------------------------------------------------
Other substantive Nil
exploration
data
------------------------------------------------------------------------
Further work Growth drilling is underway to extend the limits of
the mineralised system at depth and looking to establish
additional resources outside those defined to date,
including extension and infill of the Eastern Breccia
and drilling outside the Havieron mineralised system
as defined to date.
------------------------------------------------------------------------
APPIX II
Drillhole Data and Au- Cu Significant Intersections
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)
0.2
g/t
HAD055W4 MR-DD 463715 597341 263 1033 47 -56 877.4 1027.3 149.9 2.7 0.12 Au
------- -------- --------- ---- ------- -------- ---- ------- ------- --------- ------ ------ ----
1.0
g/t
HAD055W4 1013.4 1027.3 13.9 22.8 0.46 Au
-------- --------- ---- ------- -------- ---- ------- ------- --------- ------ ------ ----
30
g.m
.
HAD055W4 1017.7 1025.8 8.0 35 0.55 Au
-------- --------- ---- ------- -------- ---- ------- ------- --------- ------ ------ ----
0.2
g/t
HAD055W5 MR-DD 463715 597341 263 1144.5 47 -56 892.5 969 76.5 1.1 0.11 Au
------- -------- --------- ---- ------- -------- ---- ------- ------- --------- ------ ------ ----
1.0
g/t
HAD055W5 921 932.4 11.4 1.9 0.12 Au
-------- --------- ---- ------- -------- ---- ------- ------- --------- ------ ------ ----
0.2
g/t
HAD055W5 983.6 1023.2 39.6 2.8 0.07 Au
-------- --------- ---- ------- -------- ---- ------- ------- --------- ------ ------ ----
30
g.m
.
HAD055W5 1020.7 1021.2 0.5 96 0.10 Au
-------- --------- ---- ------- -------- ---- ------- ------- --------- ------ ------ ----
0.2
g/t
HAD055W6 MR-DD 463715 597341 263 1149.3 47 -56 978.3 1021.5 43.2 1.4 0.08 Au
------- -------- --------- ---- ------- -------- ---- ------- ------- --------- ------ ------ ----
1.0
g/t
HAD055W6 978.3 989.2 10.9 2.3 0.05 Au
-------- --------- ---- ------- -------- ---- ------- ------- --------- ------ ------ ----
HAD055W7 MR-DD 463715 597341 263 1144.5 47 -56 Assays Pending
------- -------- --------- ---- ------- -------- ---- -------------------------------------------------
HAD055W8 MR-DD 463715 597341 263 1144.5 47 -56 Assays Pending
------- -------- --------- ---- ------- -------- ---- -------------------------------------------------
HAD055W9 MR-DD 463715 597341 263 1144.5 47 -56 Assays Pending
------- -------- --------- ---- ------- -------- ---- -------------------------------------------------
HAD098W1 MR-DD 463590 7597379 263 1690.7 Assays Pending
------- -------- --------- ---- ------- -------- ---- -------------------------------------------------
HAD104W1 MR-DD 463522 7597782 257 1754 No Significant Result
------- -------- --------- ---- ------- -------- ---- -------------------------------------------------
HAD104W2 MR-DD 463522 7597782 257 1754 Assays Pending
------- -------- --------- ---- ------- -------- ---- -------------------------------------------------
HAD108AW1 MR-DD 463748 7597400 260 1648.3 Assays Pending
------- -------- --------- ---- ------- -------- ---- -------------------------------------------------
0.2
g/t
HAD133W9 MR-DD 464072 598317 257 1720.1 171 -65 1471.1 1496.4 25.3 1.1 0.08 Au
------- -------- --------- ---- ------- -------- ---- ------- ------- --------- ------ ------ ----
0.2
g/t
HAD133W9 1519 1575.8 56.8 0.42 0.03 Au
-------- --------- ---- ------- -------- ---- ------- ------- --------- ------ ------ ----
0.2
g/t
HAD133W9 1604 1689.8 85.8 3.0 0.06 Au
-------- --------- ---- ------- -------- ---- ------- ------- --------- ------ ------ ----
HAD145AW2 MR-DD 463201 7597816 256 Assays Pending
------- -------- --------- ---- ------- -------- ---- -------------------------------------------------
HAD152W1 MR-DD Assays Pending
------- -------- --------- ---- ------- -------- ---- -------------------------------------------------
HAD153 MR-DD 464786 7598418 269 726 201 -60 Assays Pending
------- -------- --------- ---- ------- -------- ---- -------------------------------------------------
HAD154 MR-DD 463629 597438 261 1242.5 95 -55 No Significant Result
------- -------- --------- ---- ------- -------- ---- -------------------------------------------------
HAD155 MR-DD 464535 598537 257 837.4 250 -60 No Significant Result
------- -------- --------- ---- ------- -------- ---- -------------------------------------------------
(#) drilling in progress. **partial intercept, assays pending.
^updated intercept. ^^previously reported intercept.
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.
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