TIDMGGP
RNS Number : 2508N
Greatland Gold PLC
23 September 2019
23 September 2019
Dissemination of a Regulatory Announcement that contains inside
information according to REGULATION (EU) No 596/2014 (MAR).
Greatland Gold plc
("Greatland" or "the Company")
Exploration Update - Black Hills Drill Results
First drill results confirm the presence of gold mineralisation
at Black Hills' Saddle Reefs prospect
Greatland Gold plc (AIM:GGP), the precious and base metals
exploration and development company, is pleased to provide an
exploration update on results received to date from drilling at its
100% owned Black Hills project in the Paterson region of Western
Australia.
A Reverse Circulation ("RC") drilling programme has been
completed at Black Hills. A total of twenty RC holes for 5,846m
were drilled to depths ranging from 154m to 500m. All holes were
sampled from surface to end of hole as four metre composites.
Analytical results have been received for 14 of the 20 holes
completed (drill holes SRRC001 through SRRC014) and are reported in
this announcement.
Highlights of Drill Results
-- Results received to date confirm the presence of gold
mineralisation at the Saddle Reefs prospect.
-- Encouraging initial four metre composite results with several
broad intersections subparallel to a large Induced Polarisation
("IP") chargeability response.
-- Best four metre composite results include:
o 36m at 0.53g/t Au and 0.21% Cu from 104m (SRRC007),
including
-- 4m at 1.65g/t Au from 104m
o 36m at 0.36g/t Au from surface (0m) (SRRC010)
o 12m at 0.57g/t Au from 32m (SRRC011)
o 56m at 0.56g/t Au from 68m in hole (SRRC012), including
-- 4m at 2.52g/t Au from 76m
-- Further assay results are awaited for the remaining holes
(SRRC015-SRRC020) and then single metre samples will be analysed to
more accurately determine the downhole location and tenor of
mineralisation.
Gervaise Heddle, Chief Executive Officer, commented: "The
presence of several broad intersections of mineralisation in
Greatland's first drill campaign at Black Hills is an encouraging
development. We believe that Black Hills has significant potential
to host gold mineralisation, similar in style to that seen at
Newcrest's nearby Telfer mine, although the project remains at a
very early stage. We will conduct additional analysis once the
remaining four and single metre results are received to determine
the best way to further advance exploration at Black Hills."
In June 2018, Greatland commenced its first exploration campaign
at Black Hills. Surface rock chip sampling located outcropping gold
mineralisation over several hundred metres at the Saddle Reefs
prospect and subsequent geophysical work outlined a large, coherent
chargeability anomaly over 1,400m of strike, spatially associated
with gold mineralisation identified at surface. Recent drilling
completed at Black Hills has partially tested the Saddle Reefs
prospect and has confirmed the presence of gold and copper
mineralisation.
Overview of Paterson Project and Black Hills licence
The Company's Paterson project comprises the Havieron, Paterson
Range East, and Black Hills licences, located in the Paterson
region of northern Western Australia. The three licences
collectively cover more than 385 square kilometres and are
prospective for Telfer style gold-copper deposits.
The Paterson region is currently one of the most active
exploration areas in Australia. Recent exploration success achieved
by Greatland Gold and Rio Tinto demonstrates the region has been
underexplored, particularly the extensive areas under cover. As
well as hosting several large gold and copper deposits such as
Telfer and Nifty, more recent exploration has outlined several
other deposits including Magnum (Au), Calibre (Au), O'Callaghans
(W, Cu) and Maroochydore (Cu). The region is remote, however
infrastructure is good, with several operating mines, roads, formed
tracks and rail networks nearby which branch out from the regional
industrial hub of Port Hedland 500km to the west.
The Black Hills licence, E45/4512, lies 30 km east of the large
Telfer gold mine. Black Hills is a granted exploration licence that
covers 25 square kilometres and sits adjacent to the Company's
Havieron exploration licence. The Black Hills licence is regarded
as having high potential to host gold mineralisation, similar in
style to that seen at Telfer. There has been a considerable amount
of historical exploration work at Black Hills with several discrete
zones of mineralisation identified over 5km of strike. Historical
rock chip samples have returned up to 90g/t gold, and commonly
20g/t gold, with free (visible) gold in places. Historic drill
intercepts include 3m at 9.14g/t gold from 26m downhole (incl. 1m
at 21.2g/t from 27m (CBR073)), 1m at 10.0g/t gold from 16m
(CBH138), 1m at 4.93g/t from 12m (CBH071) and 1m at 3.12g/t from
37m (NBH004).
Gold prospects identified to date extend from Black Hills into
the north western parts of the Havieron licence. Proterozoic
sandstone and carbonate rocks of the Yeneena Group formations are
present, including the Telfer Formation, in a domal structure which
is the equivalent geology to that of the large Telfer gold deposit
located 30km to the west.
A large amount of historical surface exploration data for the
Black Hills area has been compiled and incorporated into the
Company's database. Gold mineralisation has been outlined at
several prospects throughout the licence including Saddle Reefs,
Eastern, Rogers and Northern Granites (within an area of 6.5km x
2km).
Strong surface gold mineralisation is present at the Saddle
Reefs prospect with historical rock chips including 55.6g/t,
20.0g/t, 19.65g/t, 18.45g/t and 17.0g/t over an area of
approximately 1,400m x 800m. The zone has a north-westly trend and
sporadic drilling with results including 3m at 9.14g/t gold from
26m downhole, including 1m at 21.2g/t from 27m, in hole CBR073.
This zone is in the core of an anticlinal feature and, overall, is
gold prospective over a strike length of approximately 3km.
At the Eastern prospect, a linear zone of gold mineralised
stratigraphy is apparent over a strike of approximately 4km.
Historical surface rock chip results include 1.9g/t gold, 1.2g/t
gold and 1.0g/t gold. Broad spaced drilling along the zone has
returned results including 1m at 10.0g/t gold from 16m (CBH138), 1m
a 4.93g/t from 12m (CBH071) and 1m at 3.12g/t from 37m (NBH004).
The mineralisation appears to track along a structural contact and
the focus will be on identifying the higher grade mineralisation
along this trend.
The other prospects of Rogers and Northern Granites show
prospective gold mineralisation at surface with historical rock
chip results including 50.2g/t and 10.45g/t at Rogers and 6.9g/t at
Northern Granites. Drill testing is limited but results have
included 1m at 1.48g/t from 38m (NBH008) at Rogers and 1m at
2.35g/t gold from 5m (CBH253) at Northern Granites.
The Company commenced field activities at Black Hills in
mid-2018. Work focused on the Saddle Reefs and Rogers areas,
collecting rock chip samples and locating historical access. The
host sequence of Proterozoic sandstones and limestones outcrop
through relatively thin sand cover. Numerous indications of
mineralisation in bedrock are apparent. Gossanous samples were
collected from outcrop, visible gold recovered from rock chip
samples, and gold nuggets were found in thin sand cover at Saddle
Reefs.
At Saddle Reefs, the mineralised sequence outcrops through a
thin veneer of sand and gravel. Rock chip samples were collected
over a strike length of approximately 800m with results over 10g/t
gold including 81.7g/t, 45.7g/t, 37.6g/t, 33.9g/t, 28.2g/t and
23.5g/t. Many also showed high silver above 10g/t up to a maximum
of 106.1g/t. Gold (and silver) mineralisation in bedrock has been
identified over a strike length of approximately 800m at Saddle
Reefs.
Comprehensive Induced Polarisation (IP) geophysical work over
Saddle Reefs was undertaken during mid 2018 and early 2019 which
covered a strike length of 2km. Modern 3D inversion models of
resultant IP data were generated. These models outlined a large,
chargeability anomaly over 1,400m of strike spatially associated
with gold mineralisation identified at surface.
A Reverse Circulation (RC) drill program has been completed at
Black Hills. Drilling focussed on the Saddle Reefs prospect, with
several additional holes into the Saddle Reefs West and Eastern
prospects. A total of twenty RC holes for 5,846m were drilled to
depths ranging from 154m to 500m. Holes were angled at 60 degrees.
All holes were sampled from surface to end of hole as four metre
composites and analysed for a 49 element suite. Analytical results
have been received for 14 of the 20 holes completed. The first 13
holes represent three traverses of drill holes across portions of
the Saddle Reefs prospect, while the 14(th) hole is one hole from a
three hole traverse across Saddle Reefs West area. Results for 14
holes SRRC001 through SRRC014 are presented in this announcement.
Results received to date confirm gold mineralisation at the Saddle
Reefs prospect. Highest four metre composite gold result was
2.52g/t in SRRC012 from 76m downhole, while copper peaked at
8540ppm in SRRC007 from 116m downhole.
Four metre composite intercepts included 36m at 0.53g/t Au and
2107ppm Cu in hole SRRC007 from 104m downhole (including 4m at
1.65g/t Au from 104m), 12m at 0.57g/t Au from 32m in hole SRRC011,
and 56m at 0.56g/t gold from 68m in hole SRRC012. Mineralisation in
drilling at the Saddle Reefs prospect is associated with fine
grained sandstones and quartzite, and generally subparallel to the
IP chargeability anomaly which has been defined over 1,400m. Drill
hole collar details and tabulated intercepts are presented in
Appendix I and additional drill hole information is presented in
Appendix II.
These initial four metre composite results are considered a
sound result with several broad intersections drilled to date
subparallel to a large IP chargeability response. Further results
are awaited for the remaining holes (SRRC015-SRRC020) and then
single metre samples will be analysed to more accurately determine
the downhole location and tenor of mineralisation.
Competent Person:
Information in this announcement that relates to exploration
results is based on information compiled by Mr Mick Sawyer,
Exploration Manager for Greatland Pty Ltd, who is a member of the
Australian Institute of Geoscientists and is a Registered
Professional Geoscientist (R.P.Geo #10194). Mr Sawyer has
sufficient experience relevant to the style of mineralisation and
type of deposit under consideration and to the activity which has
been undertaken 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.
Mr Sawyer consents to the inclusion in the announcement of the
matters based on their information in the form and context in which
it appears.
Information in this announcement that relates to Black Hills
project exploration results has been extracted from the following
announcements:
"Greatland Discovers Gold Nuggets at Black Hills", dated 21 June
2018
"Black Hills: Further Gold Found in Surface Samples", dated 2
July 2018
"Black Hills Update", dated 17 July 2018
"High Grade Gold Detected in Samples at Black Hills", dated 4
September 2018
"Large New Geophysical Target at Saddle Reefs", dated 29 October
2018
"Rio Tinto Exploration Update - copper-gold mineralisation
discovered in the Paterson Province in the far east Pilbara region
of Western Australia" dated 27 Feb 2019
"Greatland Commences 2019 Field Exploration Campaign at Black
Hills", dated 7 May 2019
"Black Hills - Positive IP Results and Drill Update", dated 30
May 2019
"Rio Tinto Exploration Update - Winu project", dated 6 June
2019
"First Drilling Campaign Commences at Black Hills", dated 9 July
2019
"Rio Tinto Exploration Update - Winu project", dated 1 August
2019
Further information on the Black Hills licence can be found
under 'Paterson' on the Company's website. In addition, this
announcement is available in PDF format, with figures/diagrams,
from the Company's website: www greatlandgold.com
Enquiries:
Greatland Gold PLC
Gervaise Heddle/Callum Baxter
Tel: +44 (0)20 3709 4900
Email: info@greatlandgold.com
www.greatlandgold.com
SPARK Advisory Partners Limited (Nominated Adviser)
Andrew Emmott/James Keeshan
Tel: +44 (0)20 3368 3550
SI Capital Limited (Joint Broker)
Nick Emerson/Alan Gunn
Tel: +44 (0)14 8341 3500
Numis Securities Limited (Joint Broker)
Matthew Hasson/John Prior/Alamgir Ahmed
Tel: +44 (0)20 7260 1000
Luther Pendragon (Media and Investor Relations)
Harry Chathli/Alexis Gore/Joe Quinlan
Tel: +44 (0)20 7618 9100
Notes for Editors:
Greatland Gold plc is a London-listed (LON:GGP) natural resource
exploration and development company with a current focus on gold,
copper and nickel exploration projects.
The Company has six main projects; four situated in Western
Australia and two in Tasmania. All projects are 100% owned by
Greatland.
In March 2019, Greatland signed a Farm-in Agreement with
Newcrest Operations Limited, a wholly-owned subsidiary of Newcrest
Mining Limited (ASX:NCM), to explore and develop Greatland's
Havieron gold-copper project in the Paterson region of Western
Australia. Newcrest has the right to acquire up to a 70% interest
in a 12-block area within E45/4701 that covers the Havieron target
by spending up to US$65m.
Greatland is seeking to identify large mineral deposits in areas
that have not been subject to extensive exploration previously. It
is widely recognised that the next generation of large deposits
will come from such under-explored areas and Greatland is applying
advanced exploration techniques to investigate a number of
carefully selected targets within its focused licence
portfolio.
The Company is also actively investigating a range of new
opportunities in precious and strategic metals and will update the
market on new opportunities as and when appropriate.
APPIX I
DRILLHOLE DATA - Black Hills Project
Black Hills 2019 RC Drilling - Collar Locations (GDA94
Zone51)
Hole Prospect Northing Easting RL Depth Azimuth Dip Assay
ID
SRRC001 Saddle Reefs 7610279 444938 268 304 55 -60 Complete
-------------- --------- -------- ---- ------ -------- ---- ---------
SRRC002 Saddle Reefs 7610348 445049 263 298 55 -60 Complete
-------------- --------- -------- ---- ------ -------- ---- ---------
SRRC003 Saddle Reefs 7610487 445237 261 298 235 -60 Complete
-------------- --------- -------- ---- ------ -------- ---- ---------
SRRC004 Saddle Reefs 7610550 445338 269 350 235 -75 Complete
-------------- --------- -------- ---- ------ -------- ---- ---------
SRRC005 Saddle Reefs 7609821 445772 271 298 235 -60 Complete
-------------- --------- -------- ---- ------ -------- ---- ---------
SRRC006 Saddle Reefs 7609622 445473 262 500 55 -60 Complete
-------------- --------- -------- ---- ------ -------- ---- ---------
SRRC007 Saddle Reefs 7609521 445331 259 298 55 -60 Complete
-------------- --------- -------- ---- ------ -------- ---- ---------
SRRC008 Saddle Reefs 7609402 445184 255 298 55 -60 Complete
-------------- --------- -------- ---- ------ -------- ---- ---------
SRRC009 Saddle Reefs 7609292 445035 255 298 55 -60 Complete
-------------- --------- -------- ---- ------ -------- ---- ---------
SRRC010 Saddle Reefs 7610543 445131 260 154 235 -60 Complete
-------------- --------- -------- ---- ------ -------- ---- ---------
SRRC011 Saddle Reefs 7610561 445186 260 154 235 -60 Complete
-------------- --------- -------- ---- ------ -------- ---- ---------
SRRC012 Saddle Reefs 7610486 445067 260 154 235 -60 Complete
-------------- --------- -------- ---- ------ -------- ---- ---------
SRRC013 Saddle Reefs 7610449 445093 264 298 235 -60 Complete
-------------- --------- -------- ---- ------ -------- ---- ---------
Saddle Reefs
SRRC014 West 7609417 444090 249 262 55 -60 Complete
-------------- --------- -------- ---- ------ -------- ---- ---------
Saddle Reefs
SRRC015 West 7609535 444229 248 358 55 -60 Pending
-------------- --------- -------- ---- ------ -------- ---- ---------
Saddle Reefs
SRRC016 West 7609641 444381 249 358 55 -60 Pending
-------------- --------- -------- ---- ------ -------- ---- ---------
SRRC017 Saddle Reefs 7608546 445646 249 300 55 -60 Pending
-------------- --------- -------- ---- ------ -------- ---- ---------
SRRC018 Saddle Reefs 7608635 445870 253 300 55 -60 Pending
-------------- --------- -------- ---- ------ -------- ---- ---------
SRRC019 Eastern 7609373 446778 249 287 235 -60 Pending
-------------- --------- -------- ---- ------ -------- ---- ---------
SRRC020 Eastern 7609695 446239 270 279 255 -60 Pending
-------------- --------- -------- ---- ------ -------- ---- ---------
Black Hills 2019 RC Drilling - Intercepts
Reporting Criteria: Intercepts reported are greater than or
equal 4m, greater than or equal to 0.1 ppm Au, with maximum
consecutive internal dilution of 8m. Au grades are reported to two
significant figures. Copper shown where it is more than 500ppm in a
gold intercept.
Hole ID From To Interval Au (g/t) Cu ppm
SRRC001 28 40 12 0.15
----- ---- --------- --------- -------
SRRC002 56 60 4 0.17
----- ---- --------- --------- -------
SRRC002 140 148 8 0.18
----- ---- --------- --------- -------
SRRC003 60 68 8 0.27
SRRC003* 296 298 2 0.43
----- ---- --------- --------- -------
SRRC004 4 20 16 0.13
SRRC005 156 160 4 0.12
SRRC006 48 52 4 0.14
SRRC006 188 200 12 0.22
----- ---- --------- --------- -------
SRRC006 276 280 4 0.17
----- ---- --------- --------- -------
SRRC007 104 140 36 0.53 2107
incl 104 108 4 1.65
----- ---- --------- --------- -------
116 120 4 0.99 8540
----- ---- --------- --------- -------
120 124 4 0.69 4372
----- ---- --------- --------- -------
SRRC007 248 252 4 0.18
----- ---- --------- --------- -------
SRRC008 256 284 28 0.24 616
SRRC009 268 288 20 0.10
SRRC010 0 36 36 0.32
SRRC010 72 80 8 0.18
----- ---- --------- --------- -------
SRRC010 92 96 4 0.13
----- ---- --------- --------- -------
SRRC011 32 44 12 0.57
SRRC012 52 56 4 0.20
SRRC012 68 124 56 0.56
----- ---- --------- --------- -------
incl 68 72 4 1.56
----- ---- --------- --------- -------
incl 76 80 4 2.52
----- ---- --------- --------- -------
incl 104 108 4 1.66
----- ---- --------- --------- -------
SRRC013 16 40 24 0.17
SRRC013 76 88 12 0.10 799
----- ---- --------- --------- -------
SRRC013 116 136 20 0.31
----- ---- --------- --------- -------
SRRC014 136 140 4 0.17
* greater than or equal 2m, greater than or equal to 0.1 ppm Au
- zero internal dilution. End of hole 298m.
APPIX II
JORC Code 2012 Table 1 - Black Hills Project
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections)
Criteria Explanation
Sampling 2019 Reverse Circulation Drilling
techniques * Nature and quality of sampling (eg cut channels, (RC)
random chips, or specific specialised industry * Prospects have been drilled by 20 RC drill holes,
standard measurement tools appropriate to the totalling 5,846m, with an average hole depth of
minerals under investigation, such as down hole gamma 290m.
sondes, or handheld XRF instruments, etc). These
examples should not be taken as limiting the broad
meaning of sampling. * Assays have been received for fourteen 2019 RC drill
holes.
* Include reference to measures taken to ensure sample
representivity and the appropriate calibration of any * RC drill holes were drilled at three separate areas
measurement tools or systems used. testing geophysical and geochemical targets.
* Aspects of the determination of mineralisation that * Locations and orientation of 2019 drill holes for
are Material to the Public Report. In cases where this release are tabulated in the appendices of the
'industry standard' work has been done this would be report.
relatively simple (eg 'reverse circulation drilling
was used to obtain 1 m samples from which 3 kg was
pulverised to produce a 30 g charge for fire assay').
In other cases more explanation may be required, such RC Sampling
as where there is coarse gold that has inherent * RC sampling was carried out using Greatland internal
sampling problems. Unusual commodities or protocols and QAQC procedures.
mineralisation types (eg submarine nodules) may
warrant disclosure of detailed information.
* One metre samples were collected from the cyclone
into a plastic bucket and laid out generally in rows
of 50.
* RC samples were composited to 4m lengths via 'spear'
sampling the individual 1m intervals. Samples were
then taken to the laboratory and pulverised.
------------------------------------------------------------- ----------------------------------------------------------------------
Drilling RC Drilling
techniques * Drill type (eg core, reverse circulation, open-hole * RC drilling was undertaken using a truck mounted
hammer, rotary air blast, auger, Bangka, sonic, etc) KWL700. Depth capacity of the drill rig is
and details (eg core diameter, triple or standard approximately 600m. The drill rig utilised an onboard
tube, depth of diamond tails, face-sampling bit or compressor (1200 cfm, 350/500 psi) and auxiliary
other type, whether core is oriented and if so, by booster (1250 cfm, 850 psi).
what method, etc).
* Drill holes were collared using a 7 1/2 inch RC bit
to 25-35m, followed by 5-5/8 inch RC bit to end of
hole.
------------------------------------------------------------- ----------------------------------------------------------------------
Drill sample RC Sampling
recovery * Method of recording and assessing core and chip * RC sample recovery and quality was recorded via
sample recoveries and results assessed. visual estimation of sample volume and the condition
of drill spoils.
* Measures taken to maximise sample recovery and ensure
representative nature of the samples. * Recovery ranges from 90-100%, with only occasional
recoveries of less than 70%. Sample recovery was
maximized by maintaining dry samples (dry drilling
* Whether a relationship exists between sample recovery conditions) as much as possible.
and grade and whether sample bias may have occurred
due to preferential loss/gain of fine/coarse
material. * Due to consistently high recoveries, no relationship
between grade and recovery is evident.
------------------------------------------------------------- ----------------------------------------------------------------------
Logging
* Whether core and chip samples have been geologically * All RC drill samples were geologically logged for
and geotechnically logged to a level of detail to lithology, mineralogy, alteration, veining and
support appropriate Mineral Resource estimation, sulphide occurrences. This logging includes both
mining studies and metallurgical studies. qualitative and quantitative components.
* Whether logging is qualitative or quantitative in * Logging is recorded directly into a laptop computer
nature. Core (or costean, channel, etc) photography. using 'LogChief' - geological logging software. This
software has 'look-up tables' that do not allow for
invalid entries. Additional validation is then
* The total length and percentage of the relevant carried out when data is transferred to Greatlands
intersections logged. database managers.
* All samples are analysed in the field using a pXRF
(Olympus Vanta M-series) for the purpose of
geochemical interpretation.
------------------------------------------------------------- ----------------------------------------------------------------------
Sub-sampling
techniques * If core, whether cut or sawn and whether quarter, * One metre samples were collected from the cyclone
and sample half or all core taken. into a plastic bucket and laid out generally in rows
preparation of 50.
* If non-core, whether riffled, tube sampled, rotary
split, etc and whether sampled wet or dry. * RC samples were composited to 4m lengths via 'spear'
sampling the individual 1m intervals.
* For all sample types, the nature, quality and
appropriateness of the sample preparation technique. * RC sample preparation was completed at Intertek
Laboratory in Perth using industry standard
procedures (dry, crush and pulverise for 85% at
* Quality control procedures adopted for all 75um). This sample is then split into sub-samples fo
sub-sampling stages to maximise representivity of r
samples. analysis.
* Measures taken to ensure that the sampling is * The sample sizes are considered appropriate for the
representative of the in situ material collected, style of mineralisation encountered in the region.
including for instance results for field
duplicate/second-half sampling.
* Whether sample sizes are appropriate to the grain
size of the material being sampled.
------------------------------------------------------------- ----------------------------------------------------------------------
Quality of Analytical Techniques
assay data * The nature, quality and appropriateness of the * All samples were dried, crushed and pulverised to
and assaying and laboratory procedures used and whether produce suitable sub-samples for Au analysis (via
laboratory the technique is considered partial or total. Fire Assay), and Multi-Element analysis (via
tests four-acid digestion ICP-MS).
* For geophysical tools, spectrometers, handheld XRF
instruments, etc, the parameters used in determining * Au analysis - 25g Fire Assay/ICP-OES (detection limit
the analysis including instrument make and model, of 0.005ppm).
reading times, calibrations factors applied and their
derivation, etc.
* Multi-Element analysis - four acid digestion ICP-MS
(for Ag, Al, As, Ba, Be, Bi, Ca, Cd, Ce, Co, Cr, Cs,
* Nature of quality control procedures adopted (eg Cu, Fe, Ga, Ge, Hf, In, K, La, Li, Mg, Mn, Mo, Na, Nb,
standards, blanks, duplicates, external laboratory Ni, P, Pb, Rb, Re, S, Sb, Sc, Se, Sn, Sr, Ta, Te, Th,
checks) and whether acceptable levels of accuracy (ie Ti, TI, U, V, W, Y, Zn, Zr).
lack of bias) and precision have been established.
* No geophysical tools were used for any element
concentrations in this report.
* All samples are analysed in the field using a pXRF
(Olympus Vanta M-series) for the purpose of
geochemical interpretation. This data is for internal
company use only.
* Quality Control procedures in the field involve the
use of certified reference material (CRM's) for assay
standards and blanks. CRM's are inserted 1 in every
25 samples. Quality control results were considered
acceptable.
* In addition to Greatland supplied CRM's, Intertek
Laboratory includes CRM's in each sample batch they
receive for analysis.
------------------------------------------------------------- ----------------------------------------------------------------------
Verification
of sampling * The verification of significant intersections by * Significant intersections have been verified by
and assaying either independent or alternative company personnel. company personnel.
* The use of twinned holes. * No twin holes have been drilled.
* Documentation of primary data, data entry procedures, * Logging is recorded directly into a laptop computer
data verification, data storage (physical and using 'LogChief' - geological logging software. This
electronic) protocols. software has 'look-up tables' that do not allow for
invalid entries. Additional validation is then
carried out when data is transferred to Greatlands
* Discuss any adjustment to assay data. database managers.
* No adjustments have been made to any assay data.
------------------------------------------------------------- ----------------------------------------------------------------------
Location Location information
of data * Accuracy and quality of surveys used to locate drill * Drill hole collar locations were surveyed using a
points holes (collar and down-hole surveys), trenches, mine handheld Garmin 64ST GPS (accuracy of +/- 5m).
workings and other locations used in Mineral Resource
estimation.
* All coordinates are in GDA94 Zone51.
* Specification of the grid system used.
* RL is measured using a handheld GPS.
* Quality and adequacy of topographic control.
* Inclined RC drill holes are checked for drill rig
set-up azimuth using a Suunto Sighting compass.
* Inclination of drill holes is set by the driller
using a clinometer on the mast of the drill rig.
* Down hole surveys were conducted at 50m intervals
using a 'north seeking gyro' instrument.
------------------------------------------------------------- ----------------------------------------------------------------------
Data spacing
and * Data spacing for reporting of Exploration Results. * Three areas were drilled for the 2019 RC program. At
distribution these three areas, drill hole spacing is
approximately 140m. Drill hole orientation is
* Whether the data spacing and distribution is perpendicular to the strike direction of the local
sufficient to establish the degree of geological and geology.
grade continuity appropriate for the Mineral Resource
and Ore Reserve estimation procedure(s) and
classifications applied. * Sample compositing has been applied. In general, 4m
composites have been used for the 2019 drill program.
* Whether sample compositing has been applied.
* Data spacing is not sufficient for the reporting of
Mineral Resources.
* A large amount of historic shallow surface
exploration has been conducted at the Black Hills
project. Most historic holes are shallow (
------------------------------------------------------------- ----------------------------------------------------------------------
Orientation
of data in * Whether the orientation of sampling achieves unbiased * Drill holes were oriented perpendicular to strike of
relation sampling of possible structures and the extent to the local geology.
to which this is known, considering the deposit type.
geological
structure * No relationship is known between key mineralizing
* If the relationship between the drilling orientation structures and the orientation of drilling.
and the orientation of key mineralised structures is
considered to have introduced a sampling bias, this
should be assessed and reported if material.
------------------------------------------------------------- ----------------------------------------------------------------------
Sample
security * The measures taken to ensure sample security. * Sample security is managed by Greatland internal
protocols. Samples are taken from site by Greatland
or their representatives to Port Hedland, and
transported to the laboratory in Perth.
------------------------------------------------------------- ----------------------------------------------------------------------
Audits or
reviews * The results of any audits or reviews of sampling * No audits have been completed.
techniques and data.
* No reviews are considered required as the project is
in early phase of exploration.
------------------------------------------------------------- ----------------------------------------------------------------------
Section 2 Reporting of Exploration Results
(Criteria in the preceding section also apply to this
section)
Criteria Explanation
Mineral
tenement * Type, reference name/number, location and ownership * The Black Hills Project is located wholly within the
and land including agreements or material issues with third following Exploration Licence:
tenure status parties such as joint ventures, partnerships,
overriding royalties, native title interests,
historical sites, wilderness or national park and * E45/4512 (granted)
environmental settings.
* Greatland Pty Ltd holds a 100% interest in E45/4512
* The security of the tenure held at the time of
reporting along with any known impediments to
obtaining a licence to operate in the area. * Newcrest Operations Limited holds right of first
refusal as per Farm-in Agreement dated 12th March
2019.
* The tenements are in 'good standing' with the WA -
DMIRS.
* No known impediments exist, including a licence to
operate in the area.
------------------------------------------------------------- ------------------------------------------------------------------
Exploration
done by other * Acknowledgment and appraisal of exploration by other * Exploration in the region of the Paterson Range East
parties parties. Project has involved the following companies:
* CBM (1974--1989)
* Peko (-- 1978)
* Marathon Petroleum (--1979)
* Western Mining Corporation (1980--1981)
* Duval (1984)
* Malateur (1985--1986)
* Newmont (1986-1996)
* Freeport (1987--1988)
* Newcrest (1995--1997)
* Normandy Exploration (1998--1999)
* Croesus Mining (2000--2001)
* Opus Exploration (2001--2002)
* Range River Gold (2003--2005)
* Newcrest (2009--2015)
------------------------------------------------------------- ------------------------------------------------------------------
Geology
* Deposit type, geological setting and style of * Paterson Province Geological Setting:
mineralisation.
* Proterozoic meta-sedimentary rocks. Mineralisation
styles include: Stratigraphic/contact controlled gold,
vein and reef style gold/copper stockwork.
* At Saddle Reefs, mineralisation is hosted in fine
grained sandstones with minor interbedded siltstones.
In other parts of the project area, mineralisation is
associated with fine grained quartzites.
------------------------------------------------------------- ------------------------------------------------------------------
Drill hole
Information * A summary of all information material to the * Reports prepared by Greatland Pty Ltd on the Black
understanding of the exploration results including a Hills project are available to view on:
tabulation of the following information for all www.greatlandgold.com
Material drill holes:
* Other information regarding the exploration area can
* easting and northing of the drill hole collar be found in historic exploration reports, available
in previous Western Australia DMIRS reports.
* elevation or RL (Reduced Level - elevation above sea
level in metres) of the drill hole collar * A table with drill hole information accompanies the
report.
* dip and azimuth of the hole
* down hole length and interception depth
* hole length.
* If the exclusion of this information is justified on
the basis that the information is not Material and
this exclusion does not detract from the
understanding of the report, the Competent Person
should clearly explain why this is the case.
------------------------------------------------------------- ------------------------------------------------------------------
Data
aggregation * In reporting Exploration Results, weighting averaging * Aggregated intervals have been length weighted.
methods techniques, maximum and/or minimum grade truncations
(eg cutting of high grades) and cut-off grades are
usually Material and should be stated. * Reporting Criteria: Intercepts reported are greater
than or equal 4m, greater than or equal to 0.1 ppm Au,
with maximum consecutive internal dilution of 8m. Au
* Where aggregate intercepts incorporate short lengths grades are reported to two significant figures.
of high grade results and longer lengths of low grade Copper shown where it is more than 500ppm in a gold
results, the procedure used for such aggregation intercept.
should be stated and some typical examples of such
aggregations should be shown in detail.
* One intersection is reported as; greater than or
equal 2m, greater than or equal to 0.1 ppm Au - zero
* The assumptions used for any reporting of metal internal dilution (End of hole 298m).
equivalent values should be clearly stated.
* Higher grade gold intervals within broader zones of
lower grade intervals are reported as included
intervals.
------------------------------------------------------------- ------------------------------------------------------------------
Relationship
between * These relationships are particularly important in the * The geometry of mineralisation with respect to drill
mineralisation reporting of Exploration Results. hole orientation is not known.
widths and
intercept
lengths * If the geometry of the mineralisation with respect to * Intervals are down hole lengths, true widths not
the drill hole angle is known, its nature should be known.
reported.
* If it is not known and only the down hole lengths are
reported, there should be a clear statement to this
effect (eg 'down hole length, true width not known').
------------------------------------------------------------- ------------------------------------------------------------------
Diagrams
* Appropriate maps and sections (with scales) and * Appropriate diagrams are available with this report.
tabulations of intercepts should be included for any
significant discovery being reported These should
include, but not be limited to a plan view of drill
hole collar locations and appropriate sectional
views.
------------------------------------------------------------- ------------------------------------------------------------------
Balanced
reporting * Where comprehensive reporting of all Exploration * The company believes this announcement is a balanced
Results is not practicable, representative reporting report, and that all material information has been
of both low and high grades and/or widths should be reported.
practiced to avoid misleading reporting of
Exploration Results.
------------------------------------------------------------- ------------------------------------------------------------------
Other
substantive * Other exploration data, if meaningful and material, * Previous exploration results included in this
exploration should be reported including (but not limited to): announcement can be found on the company website:
data geological observations; geophysical survey results; www.greatlandgold.com
geochemical survey results; bulk samples - size and
method of treatment; metallurgical test results; bulk
density, groundwater, geotechnical and rock
characteristics; potential deleterious or
contaminating substances.
------------------------------------------------------------- ------------------------------------------------------------------
Further work
* The nature and scale of planned further work (eg * Further results are awaited for the remaining 6
tests for lateral extensions or depth extensions or holes. Single metre samples will then be analysed.
large-scale step-out drilling).
* Planned further work includes geological and
* Diagrams clearly highlighting the areas of possible geochemical investigation of drill results with the
extensions, including the main geological aim of developing a 3D geological model of the
interpretations and future drilling areas, provided project.
this information is not commercially sensitive.
------------------------------------------------------------- ------------------------------------------------------------------
This information is provided by RNS, the news service of the
London Stock Exchange. RNS is approved by the Financial Conduct
Authority to act as a Primary Information Provider in the United
Kingdom. Terms and conditions relating to the use and distribution
of this information may apply. For further information, please
contact rns@lseg.com or visit www.rns.com.
END
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