TIDMGGP
RNS Number : 8046N
Greatland Gold PLC
25 January 2023
25 January 2023
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
Havieron Exploration and Development Update
Significant progress advancing the decline with 1,519 metres
completed with new record high advancement rates achieved
Drilling reinforces potential for continued resource growth with
high grade mineralised
intercepts identified in the Eastern Breccia and Northern
Breccia
Greatland Gold plc (AIM:GGP) ("Greatland" or "Company") is
pleased to provide an exploration and development update for
Havieron, its flagship gold-copper project located in the Paterson
region of Western Australia.
The Company notes that its 70% Havieron joint venture partner,
Newcrest Mining Ltd ("Newcrest") today released its Quarterly
Exploration Report and Quarterly Report for the three months ended
31 December 2022 which included results released in Greatland's
announcement of 8 December 2022 as well as new exploration results
which are set out in this announcement.
HIGHLIGHTS
Accelerated decline development
-- Development of the decline has accelerated with 1,519 metres
advanced (as at 18 January 2023)
-- Improved ground conditions and the transition to drilling and
blasting of the development face has seen an acceleration of
development with project record rates of advancement achieved
Expanded high grade mineralisation with significant new growth
drilling results
-- Drilling has continued to define both high grade material
within the Eastern Breccia and Northern Breccia
-- Summary results as follows (noting that the intercepts
reported below are downhole width and not true width):
Eastern Breccia
HAD134W1
-- 42.0m @ 2.4 g/t Au & 0.43% Cu from 1,542m
HAD152W4
-- 86.0m @ 0.88g/t Au & 0.05% Cu from 2,056m
HAD163W1
-- 171.1m @ 0.68g/t Au & 0.04% Cu from 1,458m (including 32m
@ 1.5g/t Au & 0.09% Cu from 1,492m)
HAD164W2
-- 68.0m @ 0.9g/t Au & 0.14% Cu from 1,411m
Northern Breccia
HAD098W8
-- 137.0m @ 1.0g/t Au & 0.10% Cu from 1,110m
-- 22.0m @ 8.1g/t Au & 0.14% Cu from 1,287m
-- In 2023, the drilling campaign is intended to focus on growth
targets and ongoing resource infill for the lower South East
Crescent Zone
-- Testing of geophysical targets within the broader mining
lease continues
-- Drilling activities will be ramping up following the wet
season with three rigs scheduled to be on site in February 2023
Feasibility Study update
-- Various value enhancing workstreams to maximise value and
de-risk the project continue to be progressed as part of the
Feasibility Study
-- An update on timing expectations for the study is expected as
these options are further assessed
Shaun Day, Greatland Managing Director, commented: "Tremendous
progress has been achieved in advancing the decline in recent
months. The improved ground conditions has enabled record rates of
advancement."
"Results from the growth drilling programme towards the end of
2022 continued to identify higher grade extensions to the
mineralisation in the Northern Breccia and Eastern Breccia."
" The success of the drilling programme supports the expectation
for Havieron to deliver an expanded mineral resource estimate.
"
HAVIERON ACTIVITIES UPDATE
Background
Havieron, a gold-copper project located in the Paterson region
of Western Australia, is a 30:70 joint venture between Greatland
and Newcrest respectively ("Joint Venture"). Havieron was
discovered by Greatland in 2018 with Newcrest having earned into
the project.
The Joint Venture commenced drilling during the June 2019
quarter and has completed 288,664 metres of drilling . The Joint
Venture commenced the box cut and decline in February 2021 and
Feasibility Study work remains ongoing.
Havieron is located approximately 45km east of Newcrest's Telfer
mine. Subject to a positive Feasibility Study and decision to mine,
it is contemplated that the Joint Venture will leverage the
existing Telfer infrastructure and processing plant.
A regional map showing the Havieron licence area with regional
targets and adjacent landholdings is available at
www.greatlandgold.com/paterson
Drilling Update
A further 5,580 metres of drilling from 7 new holes has been
completed since Greatland's last RNS Announcement on 8 December
2022 titled "Havieron Exploration and Development Update".
Assay results are now reported from 1 new hole completed during
this period and from 9 holes completed during the previous period
(see Figures 1 and 2 below). Of these, 4 holes returned significant
assay intercepts in excess of 50 gram metres of gold (Au ppm x
length metres). A total of 7 holes have been completed with assay
results pending. All reported results are set out in Appendix 2 of
this RNS Announcement.
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.
Growth drilling has been focused on the Northern Breccia and
Eastern Breccia and on testing the mineral systems depth potential,
while camp-scale exploration holes are underway to test targets
outside the main Havieron mineralised system (Figure 2).
Figure 2. 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.
The Joint Venture continues with a growth drilling programme
which has the potential to expand the Havieron Mineral Resource
(see Newcrest ASX Announcement, 19 August 2022, Annual Mineral
Resources and Ore Reserves Statement as at 30 June 2022).
Assays have been received for 6 holes targeting strike and depth
extensions of the Eastern Breccia. A further 2 holes are drilled
with results pending. The Eastern Breccia is developed below the
4,100RL (all relative depth ("RL") information is reported in
Australian Height Datum ("AHD") +5,000 metres) with a footprint of
over 500m in strike, up to 200m in width, and over 250m in vertical
extent.
The zone of high-grade mineralisation returned in HAD134W1 (
42.0m @ 2.4 g/t Au & 0.43% Cu) represents one of the recently
defined northwest trending internal higher-grade sulphide dominated
domains with strong similarities to the high grade South East
Crescent, in the Eastern Breccia (see Figure 5). This
mineralisation, along with much of the Eastern Breccia system,
remain open at depth.
Summary results include:
HAD134W1
-- 42.0m @ 2.4 g/t Au & 0.43% Cu from 1,542m
HAD152W4
-- 86.0m @ 0.88g/t Au & 0.05% Cu from 2,056m
HAD163W1
-- 171.1m @ 0.7g/t Au & 0.04% Cu from 1,458m
HAD164W2
-- 68.0m @ 0.9g/t Au & 0.14% Cu from 1411m
Assays have been received for 2 holes that were aimed at
defining the high-grade domains within the boarder Northern Breccia
(see Figure 3 and Figure 4). A further 3 holes are drilled with
assays pending.
Summary results include:
HAD098W8
-- 137.0m @ 1.0g/t Au & 0.10% Cu from 1,110m
-- 22.0m @ 8.1 g/t Au & 0.14% Cu from 1,287m
HAD161
-- 77m @ 0.6g/t Au & 0.05% Cu from 1,134m
Drilling to test geophysical targets outside of the known
Havieron mineralised system, including evaluating the Havieron
dolerite at multiple intervals north and south of the Havieron
mineralised envelope, revealed no significant intercepts. Two holes
testing to the northwest and southeast holes are awaiting assays
(HAD169 & HAD170).
Figure 3. Schematic plan view map showing announced section
locations, 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 4. Schematic cross section of geology and significant new
drillhole intercepts (looking northwest, Section Line S1, +/- 1 00m
section width, as shown in Figure 2 above). 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, +/- 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 6. Schematic cross section of geology and significant new
drillhole intercepts (looking northeast, Section Line S3, +/- 100m
section width, as shown in Figure 2 above. Due to section window
size and orientation holes may appear on multiple sections. This
diagram highlights >50gram metres intersections drilled during
the period.
Development Update
Development of the decline saw ground conditions improve with
1,519 metres now complete (as at 18 January 2023).
A dvance rates for the decline continue to increase with the
project's highest daily average advancement rates being set since
the last update in December 2022 after the transition to drilling
and blasting of the development face . Further progress continued
to be constrained by geotechnical and hydrogeological conditions
.
Works are ongoing to progress the approvals and permits required
for construction and production at Havieron.
CONTACT
For further information, please contact:
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 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
Competent PersonS STATEMENT
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.
APPIX 1
Havieron Joint Venture: JORC Table 1
Section 1 Sampling Techniques and Data
Criteria Commentary
Core
Sampling samples
techniques are
obtained
from
core
drilling
in
Proterozoic
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.
------------------
Permian
Drilling Paterson
techniques 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
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.
------------------
Core
Drill recovery
sample is
recovery systematically
recorded
from
the
commencement
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.
------------------
Geological
Logging 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.
------------------
Sampling,
Sub-sampling sample
techniques preparation
and and
sample quality
preparation control
protocols
are
considered
appropriate
for
the
material
being
sampled.
Core
was
cut
and
sampled
at
the
Havieron
core
processing
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.
------------------
Assaying
Quality of
of drill
assay core
data samples
and was
laboratory conducted
tests at
Intertek.
All
samples
were
assayed
for
48
elements
using
a
4-acid
digestion
followed
by
ICP-AES/ICP-MS
determination
(method
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.
------------------
Sampling
Verification intervals
of defined
sampling by
and the
assaying geologist
are
electronically
assigned
sample
identification
numbers
prior
to
core
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.
------------------
Drill
Location collar
of locations
data were
points surveyed
using
a
differential
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.
------------------
Within
Data the
spacing South-East
and Crescent
distribution and
Breccia
zone
drill
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.
------------------
Drill
Orientation holes
of exploring
data the
in extents
relation of
to the
geological Havieron
structure mineral
system
intersect
moderately
dipping
carbonate
and
siliclastic
sedimentary
facies,
mineralised
breccia
and
sub-vertical
intrusive
lithologies.
Geological
modelling
has
been
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.
------------------
The
Sample security
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.
------------------
Internal
Audits reviews
or of
reviews core
handling,
sample
preparation
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.
------------------
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.
-------------------------------------------------------------------
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.
-------------------------------------------------------------------
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 with a final grade
greater than 0.5g/t Au, 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 This is the twenty-fourth release of Exploration Results
reporting 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 2
Drillhole Data and Au- Cu Significant Intersections for Havieron
Joint Venture
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 grade, and
only those intercepts with average grades above 0.5g/t Au are
reported. 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 Hole Easting Northing RL Total Azimuth Dip From To Interval Au Cu Cut
ID Type (m) (m) (m) Depth (m) (m) (m) (ppm) (pct) off
(m)
HAD087W1 MR-DD 464338 7598259 5258 1603.1 222 -70 Assays Pending
------- -------- --------- ----- ------- -------- ------ -----------------------------------------------
0.2
g/t
HAD098W8 MR-DD 463591 7597381 5264 1540.1 38 -61 1011 1049 38 0.8 0.22 Au
------- -------- --------- ----- ------- -------- ------ ----- ------- --------- ------ ------ ----
0.2
g/t
1110 1247 137 1.0 0.1 Au
------------------ -------- --------- ----- ------- -------- ------ ----- ------- --------- ------ ------ ----
0.2
g/t
1287 1309 22 8.1 0.14 Au
------------------ -------- --------- ----- ------- -------- ------ ----- ------- --------- ------ ------ ----
HAD098W9 MR-DD 463591 7597381 5264 1666.1 38 -61 Assays Pending
------- -------- --------- ----- ------- -------- ------ -----------------------------------------------
0.2
g/t
HAD134W1 MR-DD 464778 7598425 5258 1795.1 225 -66 1542 1584 42 2.4 0.43 Au
------- -------- --------- ----- ------- -------- ------ ----- ------- --------- ------ ------ ----
0.2
g/t
1604 1680 76 0.6 0.3 Au
------------------ -------- --------- ----- ------- -------- ------ ----- ------- --------- ------ ------ ----
HAD134W2 MR-DD 464778 7598425 5258 1774.1 225 -66 Assays Pending
------- -------- --------- ----- ------- -------- ------ -----------------------------------------------
0.2
g/t
HAD152W4 MR-DD 463401 7597059 5254 2169.5 33 -64 1447 1495 48 0.95 0.09 Au
------- -------- --------- ----- ------- -------- ------ ----- ------- --------- ------ ------ ----
1.0
g/t
incl. 1483 1493 10 1.9 0.19 Au
------------------ -------- --------- ----- ------- -------- ------ ----- ------- --------- ------ ------ ----
0.2
g/t
1683 1710 27 0.53 0.13 Au
------------------ -------- --------- ----- ------- -------- ------ ----- ------- --------- ------ ------ ----
0.2
g/t
2056 2142 86 0.88 0.05 Au
------------------ -------- --------- ----- ------- -------- ------ ----- ------- --------- ------ ------ ----
1.0
g/t
incl. 2120 2130 10 4 0.04 Au
------------------ -------- --------- ----- ------- -------- ------ ----- ------- --------- ------ ------ ----
0.2
g/t
HAD161 MR-DD 463407 7597519 5263 1518.5 38 -61 1134 1211 77 0.6 0.1 Au
------- -------- --------- ----- ------- -------- ------ ----- ------- --------- ------ ------ ----
HAD161W1 MR-DD 463407 7597519 5263 1618 38 -61 Assays Pending
------- -------- --------- ----- ------- -------- ------ -----------------------------------------------
0.2
g/t
HAD163W1 MR-DD 464490 7598141 5258 1718.9 198 -80 1458 1629.1 171.1 0.68 0.04 Au
------- -------- --------- ----- ------- -------- ------ ----- ------- --------- ------ ------ ----
1.0
g/t
incl. 1492 1524 32 1.5 0.09 Au
------------------ -------- --------- ----- ------- -------- ------ ----- ------- --------- ------ ------ ----
HAD164 MR-DD 464444 7598227 5258 1089.6 220 -79 Abandoned Hole
------- -------- --------- ----- ------- -------- ------ -----------------------------------------------
HAD164W1 MR-DD 464444 7598227 5258 817.5 220 -79 Abandoned Hole
------- -------- --------- ----- ------- -------- ------ -----------------------------------------------
0.2
g/t
HAD164W2 MR-DD 464444 7598227 5258 1681.2 220 -79 1411 1479 68 0.9 0.14 Au
------- -------- --------- ----- ------- -------- ------ ----- ------- --------- ------ ------ ----
HAD164W3 MR-DD 464444 7598227 5258 1738.3 220 -79 Assays Pending
------- -------- --------- ----- ------- -------- ------ -----------------------------------------------
HAD165 MR-DD 464067 7599163 5257 996.7 85 -65 No Significant Results
------- -------- --------- ----- ------- -------- ------ -----------------------------------------------
HAD166 MR-DD 464338 7598259 5258 770.5 218 -81 Abandoned Hole
------- -------- --------- ----- ------- -------- ------ -----------------------------------------------
HAD166W1 MR-DD 464338 7598259 5258 886.2 218 -81 Abandoned Hole
------- -------- --------- ----- ------- -------- ------ -----------------------------------------------
0.2
g/t
HAD166W2 MR-DD 464338 7598259 5258 1772.8 218 -81 1463 1524 61 0.5 0.050 Au
------- -------- --------- ----- ------- -------- ------ ----- ------- --------- ------ ------ ----
HAD168 MR-DD 464463 7598018 5257 1040.3 210 -80 Abandoned Hole
------- -------- --------- ----- ------- -------- ------ -----------------------------------------------
HAD168W1 MR-DD 464463 7598018 5257 1045.6 211 -80 Abandoned Hole
------- -------- --------- ----- ------- -------- ------ -----------------------------------------------
0.2
g/t
HAD168W2 MR-DD 464463 7598018 5257 1634.5 211 -80 1487 1523 36 0.89 0.02 Au
------- -------- --------- ----- ------- -------- ------ ----- ------- --------- ------ ------ ----
HAD169 MR-DD 464308 7597211 5260 865 76 -56 Assays Pending
------- -------- --------- ----- ------- -------- ------ -----------------------------------------------
HAD170 MR-DD 463275 7598285 5254 780.7 60 -60 Assays Pending
------- -------- --------- ----- ------- -------- ------ -----------------------------------------------
MEC001W1 MR-DD 463151 7595778 5253 1143.2 45 -73 No Significant Results
------- -------- --------- ----- ------- -------- ------ -----------------------------------------------
(#) drilling in progress. **partial intercept, assays pending.
^updated intercept. ^^previously reported intercept.
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END
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