- All five diamond holes of the current Trundle project
program have confirmed an extensive multiple system gold-copper
complex
-
- Four adjacent mineralised system targets drilled with shallow
higher grade and board gold-copper mineralised zones
- Assay results received for four of the five holes are to hand,
with a technical workshop planned for the end of May to review
final results and plan follow-up activities
- A 3.2km gold-copper mineralised strike remains open to the
north and south, confirmed up to 900m
wide (open) and a vertical depth of greater than 800m
- Maiden Kincora drilling program has commenced at the
Condobolin project while Trundle results are finalised and workshop
completed
-
- Drilling at the Condobolin project tests new geological
concepts at existing high grade and shallow gold-base metal targets
at the Meritilga, Phoenix and
Tilga prospects
MELBOURNE, Australia, May 10, 2023
/CNW/ - John Holliday, Technical
Committee chair, and Peter Leaman,
VP of Exploration, commented:
"The results of this program further
illustrate the very extensive scale (3.2km and open) of the
mineralised zone at the southern portion of the Trundle license.
The zone has demonstrated higher grade potential, including most
recent assay results of up to 2.24% copper and 1.75g/t
gold.
The most northern three holes intersected
significant zones of mineralisation and alteration from near
surface in a composite intrusive system, including the
strongest and longest interval of potassic (biotite) alteration
to date at the project within the North-East Gold
Zone.
To the south, an extensive mineralised
magnetite skarn has been discovered by Kincora along a 900m NW–SE trending strike from over 800m vertical depth in the Southern Extension
Zone to only 240m at the adjacent
Botfield prospect. This is a very significant mineralising skarn
system, with the porphyry intrusive source rocks and pathways to
the skarn open for further exploration.
Alteration zones and grades encountered in
all holes of this program are suggestive of being in a proximal
porphyry setting and continue to strongly support our exploration
concept that Trundle has the potential for a series or cluster of
porphyry-related ore deposits.
Following receipt of pending assays a
detailed workshop is scheduled to design more drill targets at
Trundle, as drilling continues at the Condobolin project and as we
work through a large number of gold-copper discovery opportunities
across a pipeline of 5 projects."
- Highlights of new results from Trundle
- Botfield prospect - assay results for hole TRDD037
(western hole) with a high-grade vein and
mineralised skarn from 112m and 330m vertical, respectively:
-
- 2.9m @ 0.95% copper and 0.62g/t
gold within coarse banded chalcopyrite-bornite-pyrite veins (from
129-132m), including 0.9m @ 2.24% copper and 1.75g/t gold (from
131m).
- 31m of anomalous gold and copper
within a banded magnetite-pyroxene-feldspar skarn with pyrite and
chalcopyrite, and a later massive magnetite-pyrite-chalcopyrite
skarn (from 393-424m).
- Botfield prospect - visual interpretation of hole
TRDD0391 (eastern hole) with a high-grade vein
and mineralised skarn from 80m and 240m vertical, respectively:
-
- Strong hydrothermal hematite-silica alteration overprinting
early feldspar altered volcaniclastic conglomerate and coarse
banded chalcopyrite-pyrite veins (from 92-94m).
- Semi-massive to massive magnetite skarn, including early garnet
veins overprinted by retrograde magnetite (massive) cut by a
carbonate-chalcopyrite vein at 288.6m
(from 284.5-322.40m).
- North-East Gold Zone prospect - assay results for hole
TRDD038 with the strongest and longest interval of potassic
alteration with sulphides to date at Trundle (from 220.5m to end of hole) within multiple intrusions
and the adjacent wall-rocks:
-
- 135.5m @ 0.23g/t gold, 0.02%
copper and 10ppm molybdenum from 220.5m
- hole remains open (end of hole 357.3m) pending upcoming workshop noting:
- 3m @ 0.53 g/t gold and 0.03%
copper from 243m
- 2m @ 0.73g/t gold and 0.11%
copper from 354m
- 20m @ 0.20g/t gold, 0.02% copper
and 48.9ppm molybdenum from 326m
- Drilling commenced at the high grade Meritilga prospect with
promising initial visual results 1
1 In
relation to the disclosure of visual results and estimates, the
Company cautions that visual results and estimates should not be
considered a proxy or substitute for laboratory analysis, which are
required to determine the widths and grade of the mineralisation
reported in preliminary geological logging. The Company will update
the market when laboratory analytical results become available,
expected in the next month for the Trundle project and June for the
Condobolin project.
|
Figure 1: Kincora's drilling at the Trundle
project is has confirmed an extensive multiple system porphyry
complex across 4 adjacent system targets and 3.2km mineralised
strike. Neighbouring explorer drilling has also tested the western
and southern extensions of existing known mineralised systems and
potential common targets.
Drilling update
Kincora Copper Limited (ASX: KCC) (TSXV: KCC) (Kincora or
the Company) is pleased to provide an exploration
update from drilling activities in the Lachlan Fold Belt (LFB) in
NSW, Australia, as the ongoing
program seeks to test a total of 13 gold-copper discovery
opportunities across a pipeline of 5 projects.
Kincora has completed five diamond drill holes at four adjacent
but separate mineral system targets at its flagship Trundle
project, located in a brownfield setting within the Northparkes
Igneous Complex of the Macquarie Arc. All holes have intersected
zones of gold-copper mineralisation at shallow depths with broader
lower grade intervals and localised higher grades.
Assay results returned for four holes, and detailed geological
logging of all holes1, are suggestive of an interpreted
proximal setting to the targeted porphyry intrusions. This setting,
coupled with the coincident magnetic response, across a long
strike, and open both to the north and south, strongly supports the
Company's concept that the southern portion of the Trundle project
has the potential for a series or cluster of high-grade and gold
endowed porphyry copper and skarn deposits.
Kincora's drilling has confirmed a 3.2km mineralised strike,
from shallow depths, up to 900m wide
(open) and vertical depth of greater than 800m.
The observed alteration and mineralisation at each prospect
drilled during this program are interpreted to be analogous to a
proximal setting in comparison to the deposits at Northparkes and
Cadia mines.
A workshop, led by the Company's technical committee, is
scheduled for the end of the month to undertake an analysis and
review, pending results, to assist and plan follow-up exploration
activities and drilling at the Trundle project.
In the interim, a maiden Kincora drilling program has commenced
at the Condobolin project, located within the Cobar Superbasin and
serviced from the Company's Trundle regional base. This program
will test three near surface, high-grade gold-base metal targets
within a 2km radius.
Trundle project
Kincora's current phase of drilling at the Trundle project
commenced in January2 and has drilled 5 diamond
holes for 1,972m testing four
adjacent mineral systems.
Gold-copper mineralisation at shallow depths have been
intersected in all five holes drilled in the current program with
assay results for drilling at the Dunn's North and Dunn's South prospects previously
reported3 with higher grade results including:
- Dunn's North (TRDD035):
12.5m @ 2.77g/t gold from
77.5m, with 2m @ 14.2g/t gold
- Dunn's South prospect
(TRDD036): 31m @ 0.49g/t gold, 0.25%
copper and 55ppm molybdenum from 65.9m, including:
-
- 8.6m @ 1.21g/t gold, 0.26% copper
and 90ppm molybdenum from 65.9m, with
1m @ 6.88g/t gold, 0.30% copper &
46ppm molybdenum
- 4.5m @ 0.50g/t gold, 0.79% copper
and 180ppm molybdenum from 92.4m,
with 0.5m @ 1.72g/t gold, 2.54%
copper and 721ppm molybdenum
Assay results are now to hand for Kincora's first hole at the
Botfield prospect and a step out hole at the North-East Gold Zone,
with visual reports for a follow up second hole at Botfield.
Figure 2: Extensive mineralised magnetite skarn
system coming toward surface
Causative mineralising porphyry
source and pathway yet to be confirmed for the Southern Extension
Zone (SEZ)-Botfield magnetite skarn
Botfield prospect
Kincora has completed two holes at the Botfield prospect that
have for the first time drill tested a large magnetic high complex
coincident with shallow anomalous copper-gold results and an
Induced Polarisation (IP) chargeability high anomaly.
Kincora's first and most western hole TRDD037 at Botfield was
drilled on the margin of this coincident magnetic and IP
chargeability anomaly, with follow up hole TRDD039 a step out 260
to the east and into the geophysical anomalies core, seeking to
test if the Botfield prospect was a large untested skarn and/or
porphyry complex associated with the adjacent Southern Extension
Zone (SEZ) discovery.
Holes TRDD037 and TRDD039 indicate that the Botfield prospect is
located in an uplifted block, in the order of over 500m, to the immediately adjacent SEZ prospect
across an interpreted significant N-S fault zone, with high grade,
coarse banded vein hosted mineralisation intersected as close as
80m vertical depth and board
magnetite skarn horizons from 240m
vertical depth – see Figure 2.
Massive to semi-massive and banded magnetite skarn with
associated pyrite and chalcopyrite has been discovered over a NW-SE
strike length of over 900m from the
most western hole at the SEZ (TRDD031) through to and including the
most eastern hole at Botfield (TRDD039). This magnetite skarn is an
extensive mineralising system, with mineralising porphyry intrusive
source rocks and pathway to the skarn yet to be confirmed and open
for further exploration.
Assay results for hole TRDD037 (western of the holes
at the Botfield prospect):
- 2.9m @ 0.62g/t gold, 0.95%
copper, within coarse banded chalcopyrite-bornite-pyrite veins
(from 129-132m), including
0.9m @ 1.75g/t gold, 2.24% copper
(from 131m)
- 31m @ 0.16g/t gold, 0.08% copper,
within massive magnetite-pyrite-chalcopyrite skarn (>80%
magnetite, from 393-424m downhole,
330m vertical)
- 18m @ 0.20g/t gold, 0.10% copper,
within banded magnetite-pyroxene-feldspar skarn with pyrite and
chalcopyrite (<30% magnetite from 402-420m)
Visual interpretation of hole
TRDD0391 (eastern of the holes at
Botfield):
- Strong hydrothermal hematite-silica alteration overprinting
early feldspar altered volcaniclastic conglomerate and coarse
banded chalcopyrite-pyrite vein (from 92-94m, interpreted to be similar to
129-132m in hole TRDD037)
- Almost a 40m interval of
semi-massive to massive magnetite skarn from 284.5m to 322.40m,
including early garnet veins overprinted by retrograde magnetite
(massive) cut by a carbonate-chalcopyrite vein at 288.6m
See Table 1 for further details of assay results for hole
TRDD037 and Photo 1 for photo's of aforementioned core from
TRDD039.
Photo 1: Examples of key mineralised zones from
hole TRDD039
Assay results pending
(a) Coarse chalcopyrite-pyrite banded carbonate vein (similar to
TRDD037 @ 131m) - insert @
92.9m
(b) Semi-massive skarn, pyroxene-feldspar-garnet altered basaltic
andesite - insert @ 288.6m of
semi-massive magnetite skarn with massive chalcopyrite vein
CAUTIONARY NOTE:
Photos are of selected intervals which are not representative of
the mineralization hosted on the whole property or the Trundle Park
prospect, which the Botfield target area is hosted, but are of the
alteration and lithology's intersected in the mineralized zones
within these sections of diamond drill hole TRDD039.
There is insufficient drilling data to date to demonstrate
continuity of mineralized domains and determine the relationship
between mineralization widths and intercept lengths, true widths
are not known.
In relation to the disclosure of visual results and
estimates, the Company cautions that visual results and estimates
should not be considered a proxy or substitute for laboratory
analysis, which are required to determine the widths and grade of
the mineralisation.
Furthermore, the Company cautions that given the style and
nature of mineralisation encountered visual estimates must be used
with a high degree of caution with third party and specialist thin
sections and petrography required to provide a high degree of
confidence for visual estimates.
Visual Kincora estimates for Photo 1 (a) are 0.7% chalcopyrite,
0.2% pyrite (0.9% total sulphides) for the interval from
92m to 94m down hole, based on detailed internal
geological logging.
Visual Kincora estimates for Photo 1 (b) are 2% chalcopyrite, 5%
pyrite (7% total sulphides) for the interval from 288m to 290m down
hole, based on detailed internal geological logging.
Assay results for the intervals presented in Photo 1 are
anticipated to be at hand and reported next month.
North-East Gold Zone
prospect
Hole TRDD038 was a 170m step out
from previous shallow intrusive hosted gold mineralisation.
Geological logging indicates the strongest and longest interval of
potassic alteration (secondary biotite) with sulphides to date at
Trundle (mainly pyrite with trace chalcopyrite) hosted with both
diorite and monzodiorite intrusions and also into the adjacent
volcaniclastic wall-rocks. This presence of secondary biotite and
pyrite with traces of chalcopyrite is indicative of a proximal
setting to the mineralising system.
A broad interval was returned of 135.5m @ 0.23g/t gold, 0.02% copper and 10ppm
molybdenum from 220.5m, in a sequence
of volcaniclastic sandstone and andesite with monzodiorite
intrusions – see Table 2 for further details. The hole remains open
(end of hole 357.3m) pending the
upcoming technical workshop and noting:
- 3m @ 0.53 g/t gold and 0.03%
copper from 243-246m within
monzodiorite
- 2m @ 0.73g/t gold and 0.11%
copper from 354-356m within altered
volcaniclastic sandstone, and;
- 20m @ 0.20g/t gold, 0.02% copper
and 48.9ppm molybdenum from 326-346m
within altered volcaniclastic sandstone.
Condobolin project
Kincora has recently consolidated the ground around the historic
Condobolin gold-base metal mining district. This immediate district
was previously the focus of 25 informal open pit operations, with
mining impacted by the water table and exploration by the
weathering profile. Limited modern exploration has taken place
despite significant new discoveries in the Cobar Superbasin.
Following detailed technical reviews Kincora's commenced program
is seeking to test new geological concepts for the controls of
mineralisation at three existing high-grade gold-base metal
targets; the Meritilga; Phoenix;
and, Tilga prospects – see Figure 3.
The three prospects are located within a 2km radius with the
designed program seeking to test the concept of a potential hub and
spoke development scenario.
Hole CDDH001 has commenced at the Meritilga prospect where
previous limited prior drilling sought to test mapped NE trending
quartz veins, breccia zones with quartz-sulphide matrix, historic
workings, soil geochemistry, IP chargeability and resistivity
anomalies.
The best gold grades compiled from historic information
included:
- 5m @ 7.9g/t gold, 22g/t silver
and 14ppm molybdenum (from 99m)
- 10m @ 5.8 g/t gold, 27 g/t silver
and 0.1% copper (from 80m)
- 28m @ 0.76 g/t gold and 4g/t
silver (from 26m)
In Kincora's view, the mapped NE trending breccia zones and
veins with quartz only, as identified from drilling by previous
explorers, have proven to not be associated with the main
mineralizing event. These quartz veins are syn-tectonic quartz
veins with a similar orientation to regional foliation.
Observations from previous drill cores has noted gold closely
associated with sulphides (mainly pyrite and arsenopyrite) and
quartz along breccia zones.
Kincora's new geological concept at the Meritilga prospect is
that numerous very significant previous mineralisation intervals
appear to be structurally controlled and inline with prominent
regional NW trending lineaments defined by magnetics. These NW
trends are also evident in soil and rock chip sampling geochemistry
and have not been adequately drill tested. The ongoing program is
seeking to test this new concept.
Hole CDDH001 is ongoing with promising initial visual
results1 – see Photo 2.
Photo 2: Examples of initial early mineralisation
zone from ongoing drilling of the first hole at the Condobolin
project, hole CDDH001 at the Meritilga prospect
Assay
results pending
(a) Banded epithermal-like quartz veining with pyrite-arsenopyrite
at 63.7m
(b) Quartz-pyrite-arsenopyrite filling a breccia from 78.3 to
81m
CAUTIONARY NOTE:
Photos are of selected intervals which are not representative of
the mineralization hosted on the whole property or the Meritilga
prospect, but are of the alteration and lithology's intersected in
the mineralized zones within these sections of diamond drill hole
CDDH001.
There is insufficient drilling data to date to demonstrate
continuity of mineralized domains and determine the relationship
between mineralization widths and intercept lengths, true widths
are not known.
In relation to the disclosure of visual results and
estimates, the Company cautions that visual results and estimates
should not be considered a proxy or substitute for laboratory
analysis, which are required to determine the widths and grade of
the mineralisation.
Furthermore, the Company cautions that given the style and
nature of mineralisation encountered visual estimates must be used
with a high degree of caution with third party and specialist thin
sections and petrography required to provide a high degree of
confidence for visual estimates.
Visual Kincora estimates for Photo 2 (a) are 4% arsenopyrite, 3%
pyrite (7% total sulphides) for the interval from 63m to 64m down
hole, based on detailed internal geological logging.
Visual Kincora estimates for Photo 2 (b) are 5% arsenopyrite and
4% pyrite (9% total sulphides) from 78m to 79m, 3%
arsenopyrite and 2% pyrite (5% total sulphides) from 79m to 80m, and 4%
arsenopyrite and 2% pyrite (6% total sulphides) from 80m to 81m down
hole, based on detailed internal geological logging.
Assay results for the intervals presented in Photo 2 are
anticipated to be at hand and reported in June 2023.
Figure 3: Maiden Kincora drilling program commenced at the
Condobolin project
Kincora has consolidated the historic
open pit, high grade Condobolin mining district which has had a
lack of systematic modern exploration. Near surface targets for
drilling testing the concept of a hub and spoke development
scenario.
Table 1: Trundle project – Diamond hole collar
information of current drill
program2
For diamond and air-core drilling
collar information of previous Kincora holes please refer to the
July 17, 2022 press release: "Highest grade assays to date from
Trundle's Southern Extension Zone discovery"
Table 2: Botfield prospect - hole TRDD037
(western of the two Botfield holes)
Significant interval summary tables
Porphyry gold and
copper intercepts are calculated using a lower cut of 0.10g/t
and/or 0.05% respectively. Internal dilution is below cut off.
Internal dilution is below cut off.
Abbreviations: ab = albite, act = actinolite, alt = alteration,
cal-calcite, ch = chlorite, cp = chalcopyrite, ep = epidote, hm =
hematite, mt = magnetite, qtz = quartz, py = pyrite
|
Table 3: North-East Gold Zone prospect - hole
TRDD038
Significant interval summary table
Porphyry gold and
copper intercepts are calculated using a lower cut of 0.10g/t
and/or 0.05% respectively. Internal dilution is below cut off.
Internal dilution is below cut off.
AuEq: $1800/oz Au, 3.55/lb Cu & 42,000/t Mo (100%
recoveries).
Abbreviations: ab = albite, act = actinolite, alt = alteration,
cal-calcite, ch = chlorite, cp = chalcopyrite, ep = epidote, hm =
hematite, mt = magnetite, qtz = quartz, py = pyrite
|
References:
1 In
relation to the disclosure of visual results and estimates, the
Company cautions that visual results and estimates should not be
considered a proxy or substitute for laboratory analysis, which are
required to determine the widths and grade of the mineralisation
reported in preliminary geological logging.
|
Furthermore, the
Company cautions that given the style and nature of mineralisation
encountered visual estimates must be used with a high degree of
caution with third party and specialist thin sections and
petrography required to provide a high degree of confidence for
visual estimates.
|
The Company will update
the market when laboratory analytical results become available,
expected in the next month for the Trundle project and June for the
Condobolin project.
|
2 January
19th, 2023 press release: "Kincora commences new phase of drilling
at the brownfield Trundle project"
|
3 March
21st, 2023 press release "Drilling at Trundle intersects shallow
mineralisation"
|
Kincora Copper Limited – NSW
drilling program
Following extensive technical reviews, the Company's ongoing
drilling program in NSW will seek to drill test 13 new copper-gold
discovery opportunities across 5 projects.
Trundle project
background
The Trundle project is located in the Junee-Narromine volcanic
belt of the Macquarie Arc, less than 30km from the mill at the
Northparkes mines in a brownfield setting within the westerly rift
separated part of the Northparkes Igneous Complex ("NIC"). The NIC
hosts a mineral endowment of approximately 24Moz AuEq (at 0.6% Cu
and 0.2g/t Au) and is Australia's
second largest porphyry mine comprising of 22 intrusive porphyry
discoveries, 9 of which with positive economics.
The Trundle project includes one single license covering
167km2 and was secured by Kincora in the March 2020
agreement with RareX Limited ("REE" on the ASX). Kincora is the
operator, holds a 65% interest in the Trundle Project and is the
sole funder until a positive scoping study is delivered at which
time a fund or dilute joint venture will be formed.
For further information on the Trundle and Northparkes Projects
please refer to Kincora's website:
https://kincoracopper.com/the-trundle-project/
Condobolin project
background
The Condobolin project is located in the south-eastern section
of the Cobar Superbasin, situated north of the Condobolin
township.
The Condobolin project includes two licenses covering
207.4km2 (EL7748 covering 43.2 km2 and EL9340
164.2 km2). EL7748 was secured by Kincora in the March
2020 agreement with RareX Limited ("REE" on the ASX) and EL9340 was
pegged by Kincora in 2022, consolidating the historic high grade
Condobolin mining district. This immediate district was previously
the focus of 25 informal open pit operations, with mining impacted
by the water table and exploration by the weathering profile.
Kincora is the operator, holding 100% of EL9340 and a 65%
interest in EL7748, and regarding the latter, is the sole funder
until a positive scoping study is delivered at which time a fund or
dilute joint venture will be formed.
This announcement has been authorised for release by the
Board of Kincora Copper Limited (ARBN 645 457 763)
Forward-Looking
Statements
Certain information regarding Kincora contained herein may
constitute forward-looking statements within the meaning of
applicable securities laws. Forward-looking statements may include
estimates, plans, expectations, opinions, forecasts, projections,
guidance or other statements that are not statements of fact.
Although Kincora believes that the expectations reflected in such
forward-looking statements are reasonable, it can give no assurance
that such expectations will prove to have been correct. Kincora
cautions that actual performance will be affected by a number of
factors, most of which are beyond its control, and that future
events and results may vary substantially from what Kincora
currently foresees. Factors that could cause actual results to
differ materially from those in forward-looking statements include
market prices, exploitation and exploration results, continued
availability of capital and financing and general economic, market
or business conditions. The forward-looking statements are
expressly qualified in their entirety by this cautionary statement.
The information contained herein is stated as of the current date
and is subject to change after that date. Kincora does not assume
the obligation to revise or update these forward-looking
statements, except as may be required under applicable securities
laws.
Neither the TSX Venture Exchange nor its
Regulation Services Provider (as that term is defined in the
policies of the TSX Venture Exchange) or the Australian Securities
Exchange accepts responsibility for the adequacy or accuracy of
this release.
Drilling, Assaying, Logging and
QA/QC Procedures
Sampling and QA/QC procedures are carried out by Kincora Copper
Limited, and its contractors, using the Company's protocols as per
industry best practise.
All samples have been assayed at ALS Minerals Laboratories,
delivered to Orange, NSW, Australia. In addition to internal checks by
ALS, the Company incorporates a QA/QC sample protocol utilizing
prepared standards and blanks for 5% of all assayed samples.
Diamond drilling was undertaken by DrillIt Consulting Pty Ltd,
from Parkes, under the supervision of our field geologists. All
drill core was logged to best industry standard by well-trained
geologists and Kincora's drill core sampling protocol consisted a
collection of samples over all of the logged core.
Sample interval selection was based on geological controls or
mineralization or metre intervals, and/or guidance from the
Technical Committee provided subsequent to daily drill and logging
reports. Sample intervals are cut by the Company and delivered by
the Company direct to ALS.
All reported assay results are performed by ALS and widths
reported are drill core lengths. There is insufficient drilling
data to date to demonstrate continuity of mineralised domains and
determine the relationship between mineralization widths and
intercept lengths.
True widths are not known at this stage.
Significant mineralised intervals for drilling at the Trundle
project are reported based upon two different cut off grade
criteria:
- Interpreted near surface skarn gold and copper intercepts are
calculated using a lower cut of 0.20g/t and 0.10% respectively;
and,
- Porphyry intrusion system gold and copper intercepts are
calculated using a lower cut of 0.10g/t and 0.05%
respectively.
Significant mineralised intervals are reported with dilution on
the basis of:
- Internal dilution is below the aforementioned respective cut
off's; and,
- Dilutions related with core loss as flagged by a "*".
The following assay techniques have been adopted for drilling at
the Trundle project:
- Gold: Au-AA24 (Fire assay), reported, unless above detection
limit where the interval is re-assayed using fire assay method with
atomic-absorption finish (Au-AA26 method of ALS). The technique
allows accurately determine the gold grade above 0.01 g/t and
suitable for high – grade samples where grade exceeds 10 g/t.
- Multiple elements: ME-ICP61 (4 acid digestion with ICP-AES
analysis for 33 elements) and ME-MS61 (4 acid digestion with
ICP-AES & ICP-MS analysis for 48 elements), the latter report
for holes TRDD001, TRDD035, TRDD036 and TRDD038 and also the former
reported for holes TRDD002-TRDD034, TRDD037 and TRDD039.
- Copper oxides and selected intervals with native copper:
ME-ICP44 (Aqua regia digestion with ICP-AES analysis) has been
assayed, but not reported.
- Assay results >10g/t gold and/or 1% copper are
re-assayed.
Qualified Person
The scientific and technical information in this news release
was prepared in accordance with the standards of the Canadian
Institute of Mining, Metallurgy and Petroleum and National
Instrument 43-101 – Standards of Disclosure for Mineral Projects
("NI 43-101") and was reviewed, verified and compiled by Kincora's
geological staff under the supervision of Paul Cromie (BSc Hons. M.Sc. Economic Geology,
PhD, member of the Australian Institute of Mining and Metallurgy
and Society of Economic Geologists), Exploration Manager Australia,
who is the Qualified Persons for the purpose of NI 43-101.
JORC Competent Person
Statement
Information in this report that relates to Exploration Results,
Mineral Resources or Ore Reserves has been reviewed and approved by
Paul Cromie, a Qualified Person
under the definition established by JORC and have sufficient
experience which is relevant to the style of mineralization and
type of deposit under consideration and to the activity being
undertaking to qualify as a Competent Person as defined in the 2012
Edition of the 'Australasian Code for Reporting of Exploration
Results, Mineral Resources and Ore Reserves'.
Paul Cromie (BSc Hons. M.Sc.
Economic Geology, PhD, member of the Australian Institute of Mining
and Metallurgy and Society of Economic Geologists), is Exploration
Manager Australia for the Company.
Paul Cromie consents to the
inclusion in this report of the matters based on his information in
the form and context in which it appears.
The review and verification process for the information
disclosed herein for the Trundle, Fairholme and Nyngan projects
have included the receipt of all material exploration data, results
and sampling procedures of previous operators and review of such
information by Kincora's geological staff using standard
verification procedures.
JORC TABLE 1
Section 1 Sampling Techniques and
Data
(Criteria in this section apply to all succeeding
sections).
Criteria
|
JORC Code
explanation
|
Commentary
|
Sampling
techniques
|
- Nature and quality
of sampling (e.g., cut channels, random chips, or specific
specialised industry standard measurement tools appropriate to the
minerals under investigation, such as down hole gamma sondes, or
handheld XRF instruments, etc.). These examples should not be taken
as limiting the broad meaning of sampling.
- Include reference
to measures taken to ensure sample representivity and the
appropriate calibration of any measurement tools or systems
used.
- Aspects of the
determination of mineralisation that are Material to the Public
Report.
- In cases where
'industry standard' work has been done this would be relatively
simple (e.g., 'reverse circulation drilling was used to obtain 1 m
samples from which 3 kg was pulverised to produce a 30 g charge for
fire assay'). In other cases, more explanation may be required,
such as where there is coarse gold that has inherent sampling
problems. Unusual commodities or mineralisation types (e.g.,
submarine nodules) may warrant disclosure of detailed
information
|
- Kincora Copper
Limited is the operator of the Trundle and Condobolin Projects,
with drilling using diamond coring and Air coring methods by
DrillIt Consulting Pty Ltd, from which sub-samples were taken over
2 m intervals and pulverised to produce suitable aliquots for fire
assay and ICP-MS.
- Diamond drilling
was used to obtain orientated samples from the ground, which was
then structurally, geotechnically and geologically
logged.
- Sample interval
selection was based on geological controls and
mineralization.
- Sampling was
completed to industry standards with 1⁄4 core for PQ and HQ
diameter diamond core and 1⁄2 core for NQ diameter diamond core
sent to the lab for each sample interval.
- Samples were
assayed via the following methods:
- Gold: Au-AA24 (Fire assay) unless above detection limit where the interval is
re-assayed using fire assay method with atomic-absorption finish
(Au-AA26 method of ALS). The technique allows to accurately
determine the gold grade above 0.01 g/t and suitable for high –
grade samples where grade exceeds 10 g/t. - Multiple elements: ME-ICP61 (4 acid digestion with
ICP-AES analysis for 33 elements) and ME-MS61 (4 acid digestion
with ICP-AES & ICP-MS analysis for 48
elements) - Copper oxides and
selected intervals with native copper: ME-ICP44 (Aqua regia
digestion with ICP-AES analysis) has been assayed, but not
reported - Assay results
>10g/t gold and/or 1% copper are re-assayed
- Historic sampling
on other projects included soils, rock chips and drilling (aircore,
RAB, RC and diamond core).
|
Drilling
techniques
|
- Drill type (e.g.,
core, reverse circulation, open-hole hammer, rotary air blast,
auger, Bangka, sonic, etc) and details (e.g., core diameter, triple
or standard tube, depth of diamond tails, face-sampling bit or
other type, whether core is oriented and if so, by what method,
etc.).
|
- Drilling by Kincora
at Trundle and Condobolin has used diamond core drilling with PQ,
HQ and NQ diameter core depending on drilling depth and some
shallow depth Air core drilling.
- All Kincora core
was oriented using a Reflex ACE electronic tool.
- Historic drilling
on Kincora projects used a variety of methods including aircore,
rotary air blast, reverse circulation, and diamond core. Methods
are clearly stated in the body of the previous reports with any
historic exploration results.
|
Drill sample
recovery
|
- Method of recording
and assessing core and chip sample recoveries and results
assessed.
- Measures taken to
maximise sample recovery and ensure representative nature of the
samples.
- Whether a
relationship exists between sample recovery and grade and whether
sample bias may have occurred due to preferential loss/gain of
fine/coarse material.
|
- Drill Core recovery
was logged.
- Diamond drill core
recoveries are contained in the body of the
announcement.
- Core recoveries
were recorded by measuring the total length of recovered core
expressed as a proportion of the drilled run length.
- Core recoveries for
most of Kincora's drilling at Trundle have averaged over 96.9%,
with two holes averaging 85.0%
- Poor recovery zones
are generally associated with later fault zones and the upper
oxidised parts of drill holes.
- There is no
relationship between core recoveries and grades.
- The first hole at
the Condobolin project is ongoing without a reliable or
representative core recovery estimate yet available.
|
Logging
|
- Whether core and
chip samples have been geologically and geotechnically logged to a
level of detail to support appropriate Mineral Resource estimation,
mining studies and metallurgical studies.
- Whether logging is
qualitative or quantitative in nature. Core (or costean, channel,
etc.) photography.
- The total length
and percentage of the relevant intersections logged.
|
- All Kincora holes
are geologically logged for their entire length including
lithology, alteration, mineralisation (sulphides and oxides),
veining and structure.
- Logging is mostly
qualitative in nature, with some visual estimation of mineral
proportions that is semi-quantitative. Measurements are taken on
structures where core is orientated.
- All core and Air
core chips are photographed.
- Historic drilling
was logged with logging mostly recorded on paper in reports lodged
with the NSW Department of Mines.
|
Sub-sampling techniques
and sample preparation
|
- If core, whether
cut or sawn and whether quarter, half or all core
taken.
- If non-core,
whether riffled, tube sampled, rotary split, etc. and whether
sampled wet or dry.
- For all sample
types, the nature, quality and appropriateness of the sample
preparation technique.
- Quality control
procedures adopted for all sub-sampling stages to maximise
representivity of samples.
- Measures taken to
ensure that the sampling is representative of the in-situ material
collected, including for instance results for field
duplicate/second-half sampling.
- Whether sample
sizes are appropriate to the grain size of the material being
sampled.
|
- Once all geological
information was extracted from the drill core, the sample intervals
were cut with an Almonte automatic core saw, bagged and delivered
to the laboratory.
- This is an
appropriate sampling technique for this style of mineralization and
is the industry standard for sampling of diamond drill
core.
- PQ and HQ
sub-samples were quarter core and NQ half core.
- Sample sizes are
considered appropriate for the disseminated, generally fine-grained
nature of mineralisation being sampled.
- Duplicate sampling
on some native copper bearing intervals in TRDD001 was undertaken
to determine if quarter core samples were representative, with
results indicating that sampling precision was
acceptable.
- Follow up high
grade gold assay results received for a 2-meter interval in
TRDD032, with re-assays for three samples where undertaken from
reject samples (the coarse part of samples) seeking to confirm the
original high-grade interval (12.6g/t gold) and also to test if
quarter core samples were representative. Duplicated values for the
two adjacent samples were in-line with both gold (via Au-AA26 and
Au-AA26D, duplicate, techniques) and base metals higher than the
original results for the high-grade sample.
- No other duplicate
samples were taken.
|
Quality of assay data
and laboratory tests
|
- The nature, quality
and appropriateness of the assaying and laboratory procedures used
and whether the technique is considered partial or
total.
- For geophysical
tools, spectrometers, handheld XRF instruments, etc, the parameters
used in determining the analysis including instrument make and
model, reading times, calibrations factors applied and their
derivation, etc.
- Nature of quality
control procedures adopted (e.g., standards, blanks, duplicates,
external laboratory checks) and whether acceptable levels of
accuracy (i.e., lack of bias) and precision have been
established.
|
- Gold was determined
by fire assay and a suite of other elements including Cu and Mo by
4-acid digest with ICP-AES finish at ALS laboratories in Orange and
Brisbane. Over-grade Cu (>1%) was diluted and re-assayed by
AAS.
- Techniques are
considered total for all elements. Native copper mineralisation in
TRDD001 was re-assayed to check for any effects of incomplete
digestion and no issues were found.
- For holes up to
TRDD007 every 20th sample was either a commercially supplied pulp
standard or pulp blank. After TRDD007 coarse blanks were
utilised.
- Results for blanks
and standards are checked upon receipt of assay certificates. All
standards have reported within certified limits of accuracy and
precision.
- Historic assays on
other projects were mostly gold by fire assay and other elements by
ICP.
|
Verification of
sampling and assaying
|
- The verification of
significant intersections by either independent or alternative
company personnel.
- The use of twinned
holes.
- Documentation of
primary data, data entry procedures, data verification, data
storage (physical and electronic) protocols.
- Discuss any
adjustment to assay data.
|
- Significant
intercepts were calculated by Kincora's geological
staff.
- No twinned holes
have been completed.
- The intercepts have
not been verified by independent personal.
- Logging data is
captured digitally on electronic logging tablets and sampling data
is captured on paper logs and transcribed to an electronic format
into a relational database maintained at Kincora's Mongolian
office. Transcribed data is verified by the logging
geologist.
- Assay data is
received from the laboratory in electronic format and uploaded to
the master database.
- No adjustments to
assay data have been made.
- Outstanding assays
are outlined in the body of the announcement.
|
Location of data
points
|
- Accuracy and
quality of surveys used to locate drill holes (collar and down-hole
surveys), trenches, mine workings and other locations used in
Mineral Resource estimation.
- Specification of
the grid system used.
- Quality and
adequacy of topographic control.
|
- Collar positions
are set up using a hand-held GPS and later picked up with a DGPS to
less than 10cm horizontal and vertical accuracy.
- Drillholes are
surveyed downhole every 30m using an electronic multi-shot magnetic
instrument.
- Due to the presence
of magnetite in some alteration zones, azimuth readings are
occasionally unreliable and magnetic intensity data from the survey
tool is used to identify these readings and flag them as such in
the database.
- Grid system used is
the Map Grid of Australia Zone 55, GDA 94 datum.
- Topography in the
area of Trundle and Condobolin is near-flat and drill collar
elevations provide adequate control
|
Data spacing and
distribution
|
- Data spacing for
reporting of Exploration Results.
- Whether the data
spacing and distribution 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.
- Whether sample
compositing has been applied.
|
- Kincora drilling at
Trundle and Condobolin is at an early stage, with drill holes
stepping out from previous mineralisation intercepts at various
distances.
- Data spacing at
this stage is insufficient to establish the continuity required for
a Mineral Resource estimate.
- No sample
compositing was applied to Kincora drilling.
- Historic drilling
on Trundle, Condobolin and other projects was completed at various
drill hole spacings and no other projects have spaced sufficient to
establish a mineral resource.
|
Orientation of data in
relation to geological structure
|
- Whether the
orientation of sampling achieves unbiased sampling of possible
structures and the extent to which this is known, considering the
deposit type.
- If the relationship
between the drilling orientation and the orientation of key
mineralised structures is considered to have introduced a sampling
bias, this should be assessed and reported if material.
|
- The orientation of
Kincora drilling at Trundle has changed as new information on the
orientation of mineralisation and structures has become
available.
- The angled drill
holes were directed as best possible across the known lithological
and interpreted mineralised structures.
- There does not
appear to be a sampling bias introduced by hole orientation in that
drilling not parallel to mineralised structures.
|
Sample
security
|
- The measures taken
to ensure sample security.
|
- Kincora staff or
their contractors oversaw all stages of drill core sampling. Bagged
samples were placed inside polyweave sacks that were zip-tied,
stored in a locked container and then transported to the laboratory
by Kincora field personnel.
|
Audits or
reviews
|
- The results of any
audits or reviews of sampling techniques and data.
|
- Mining Associates
has completed an review of sampling techniques and procedures dated
January 31st, 2021, as outlined in the Independent Technical Report
included in the ASX listing prospectus, which is available
at: https://www.kincoracopper.com/investors/asx-prospectus
|
Section 2 Reporting of Exploration Results
(Criteria
listed in the preceding section also apply to this section.)
Criteria
|
JORC Code
explanation
|
Commentary
|
Mineral tenement and
land tenure status
|
- Type, reference
name/number, location and ownership including agreements or
material issues with third parties such as joint ventures,
partnerships, overriding royalties, native title interests,
historical sites, wilderness or national park and environmental
settings.
- 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.
|
- Kincora holds four
exploration licences in NSW and rights to a further six exploration
licences through an agreement with RareX Limited (RareX, formerly
known as Clancy Exploration).
- EL8222 (Trundle),
EL6552 (Fairholme), EL6915 (Fairholme Manna), EL8502 (Jemalong),
EL6661 (Cundumbul) and EL7748 (Condobolin) are in a JV with RareX
where Kincora has a 65% interest in the respective 6 licenses and
is the operator /sole funder of all further exploration until a
positive scoping study or preliminary economic assessment ("PEA")
on a project by project basis. Upon completion of PEA, a joint
venture will be formed with standard funding/dilution and right of
first refusal on transfers.
- EL8960 (Nevertire),
EL8929 (Nyngan), EL9320 (Mulla) and EL9340 (Condobolin East) are
wholly owned by Kincora.
- All licences are in
good standing and there are no known impediments to obtaining a
licence to operate.
|
Exploration done by
other parties
|
- Acknowledgment and
appraisal of exploration by other parties.
|
- All Kincora
projects have had previous exploration work undertaken.
The review and verification process for
the information disclosed herein and of other parties for the
Trundle project has included the receipt of all material
exploration data, results and sampling procedures of previous
operators and review of such information by Kincora's geological
staff using standard verification procedures. Further details of
exploration efforts and data of other parties are providing in the
March 1st, 2021, Independent Technical Report included
in the ASX listing prospectus, which is available at:
https://www.kincoracopper.com/investors/asx-prospectus
|
Geology
|
- Deposit type,
geological setting and style of mineralisation.
|
- All projects
ex EL7748 (Condobolin) and EL9340
(Condobolin East) are within the Macquarie Arc, part of the Lachlan
Orogen.
- The non-Condobolin
projects, have rocks that comprise successions of
volcano-sedimentary rocks of Ordovician age intruded by suites of
subduction arc-related intermediate to felsic intrusions of late
Ordovician to early Silurian age.
- Rocks at the
Condobolin project (EL7748 and EL9340), consist of a basement of
multiply deformed, tightly-folded metasediments of the Ordovician
Girilambone Group. Magnetite-bearing, massive, laterally extensive
sandstone beds of the Mid-Late Ordovician Murda Formation are
present in the east of the tenement, within the Girilambone Group
sequence. Sediments of the Siluro-Devonian Ootha Group are present
in the middle to northern areas of the tenement. Sequences of the
basal Manna Conglomerate, Mulguthrie Formation (interbedded
mudstone, siltstone and fine-grained sandstones) and the rhyolitic
Yarnel Volcanics are observed in roughly N-S trending
synclines.
- Kincora is
exploring for porphyry-style copper and gold mineralisation,
copper-gold skarn plus related high sulphidation and epithermal
gold systems.
|
Drill hole
Information
|
- A summary of all
information material to the understanding of the exploration
results including a tabulation of the following information for all
Material drill holes:
- easting and
northing of the drill hole collar
- elevation or RL
(Reduced Level – elevation above sea level in metres) of the drill
hole collar
- 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.
|
- Detailed
information on Kincora's drilling at Trundle is given in the body
of the report.
|
Data aggregation
methods
|
- In reporting
Exploration Results, weighting averaging techniques, maximum and/or
minimum grade truncations (e.g., cutting of high grades) and
cut-off grades are usually Material and should be
stated.
- Where aggregate
intercepts incorporate short lengths of high-grade results and
longer lengths of low-grade results, the procedure used for such
aggregation should be stated and some typical examples of such
aggregations should be shown in detail.
- The assumptions
used for any reporting of metal equivalent values should be clearly
stated.
|
- For Kincora
drilling at Trundle the following methods were used:
- Interpreted
near-surface skarn gold-copper intercepts were aggregated using a
cut-off grade of 0.20 g/t Au and 0.10% Cu respectively.
- Porphyry
gold-copper intercepts were aggregated using a cut-off grade of
0.10 g/t Au and 0.05% Cu respectively.
- Internal dilution
below cut off included was generally less than 25% of the total
reported intersection length and is noted in the summary tables of
significant mineralised intervals of the respective
holes.
- Core loss was
included as dilution at zero values.
- Average gold and
copper grades calculated as averages weighted to sample
lengths.
- Historic drilling
results in other project areas are reported at different cut-off
grades depending on the nature of mineralisation.
|
Relationship between
mineralisation widths and intercept lengths
|
- These relationships
are particularly important in the reporting of Exploration
Results.
- If the geometry of
the mineralisation with respect to the drill hole angle is known,
its nature should be reported.
- If it is not known
and only the down hole lengths are reported, there should be a
clear statement to this effect (e.g., 'down hole length, true width
not known').
|
- Due to the
uncertainty of mineralisation orientation, the true width of
mineralisation is not known at Trundle or at
Condobolin.
- Intercepts from
historic drilling reported at other projects are also of unknown
true width.
|
Diagrams
|
- Appropriate maps
and sections (with scales) and 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.
|
- Relevant diagrams
and figures are included in the body of the report, including the
current working models and interpretations.
|
Balanced
reporting
|
- Where comprehensive
reporting of all Exploration Results is not practicable,
representative reporting of both low and high grades and/or widths
should be practiced to avoid misleading reporting of Exploration
Results.
|
- Intercepts reported
for Kincora's drilling at Trundle are zones of higher grade within
non-mineralised or weakly anomalous material.
|
Other substantive
exploration data
|
- Other exploration
data, if meaningful and material, should be reported including (but
not limited to): geological observations; geophysical survey
results; 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.
|
- No other
exploration data is considered material to the reporting of results
at Trundle or at Condobolin. Other data of interest to further
exploration targeting is included in the body of the
report.
- Historic
exploration data coverage and results are included in the body of
the report for Kincora's other projects.
|
Further work
|
- The nature and
scale of planned further work (e.g., tests for lateral extensions
or depth extensions or large-scale step-out drilling).
- Diagrams clearly
highlighting the areas of possible extensions, including the main
geological interpretations and future drilling areas, provided this
information is not commercially sensitive.
|
- Full results and
analysis are pending for the 5-holes drilled during in 2023 at the
Trundle project, with a technical workshop planned for the end of
May to review final results and plan follow-up
activities.
- The first of a
three hole drill program has just commenced at the Condobolin
project.
- Kincora's is
currently undertaking a drilling program at 13-gold-base metal
target testing stage prospects across a total of 5 projects in the
LFB, NSW.
|
SOURCE Kincora Copper Limited