- Kincora is pleased to report highly encouraging follow up
drilling from the emerging Southern Extension Zone (SEZ)
discovery including the highest grade primary mineralisation
interval drilled yet at the Trundle project from only the fourth
hole at the SEZ:
-
- 34m @ 1.02 g/t gold and 0.24%
copper, including 2m @ 12.6g/t gold
and 2.32% copper, within a broader zone containing 104m @ 0.46 g/t gold and 0.11% copper in hole
TRDD032
- Mineralised skarn zones have now been expanded to up to
660m in width
- Newly identified and shallow North-East Gold Zone target (up
to 2.6 g/t gold) included in advanced reviews of the SEZ and
Botfield prospects that are expected to significantly expand the
existing 1.3km mineralised strike at the Trundle Park prospect
- Favorable first phase air-core results at the Dunn's North and Ravenswood South
prospects, with permitting and scheduling for a second phase
program concurrent with air-core drilling at the Mordialloc
prospect
- Assay results pending at the Mordialloc North-East
prospect for diamond hole TRDD034
MELBOURNE, AUSTRALIA, July 18,
2022 /CNW/ - Kincora Copper Limited (the Company,
Kincora) (TSXV: KCC) (ASX: KCC) is very pleased to provide an
exploration update from recent drilling at the Trundle project
situated at the brownfield Trundle project, located in the
Macquarie Arc of the Lachlan Fold Belt (LFB) in NSW, Australia.
John Holliday, Technical
Committee chair, and Peter Leaman,
VP of Exploration, noted:
"The broad ore grade intersection, including a very
high-grade, chalcopyrite-rich zone in hole TRDD032, further
confirms the scale of the Southern Extension Zone (SEZ) and the
potential at Trundle for an economic porphyry or porphyry-related
(skarn) orebody.
The extensive mineralised footprint at surface across the
wider Trundle Park and adjacent prospect areas (Botfield to the
south/south-east and Dunn's to the
north) provides ample exploration space for new
discoveries/deposits in what is clearly a similar geological
setting to the Cadia and Northparkes porphyry mineral
centres.
With assay results to hand for all holes in the SEZ we are
now concluding a review for the next stage of priority drilling at
this exciting project."
An accompanying presentation is available at
www.kincoracopper.com
Kincora has expanded the mineralised system from 700m to now >1.3km at Trundle Park with the NE
Gold zone and Dunns prospects open to the north with Southern
Extension Zone and Botfield prospects open to the south set to
further significantly expand the mineralised system.
Southern Extension Zone (skarn)
discovery
Ore grade copper and gold in skarn has been intersected within
the Southern Extension Zone (SEZ) over at least a 330m SSE strike and 225m W-E wide system (and open) – see Figure 1.
Assay results for recent diamond core hole TRDD032 has returned
a broad ore grade interval with the highest-grade primary
mineralisation interval to date the Trundle project. In addition to
intersecting prograde and structurally controlled strongly
developed retrograde skarn alteration and mineralisation, common in
all four holes to date within the SEZ, the high-grade interval in
TRDD032 hosts a distinct and cemented
chalcopyrite-pyrite-quartz-carbonate-muscovite-hematite vein
cutting prograde garnet-pyroxene skarn – see Photo 1. This
high-grade interval returned 2m @
12.6 g/t gold and 2.32% copper within a broader 34m @ 1.02 g/t gold and 0.24% copper.
The four completed holes (TRDD029-32) have confirmed a tabular,
bedded, mineralised skarn system across multiple horizons with
greater than 120m cumulative skarn
widths in three of the four holes – see Tables 1-4. This is very
encouraging, large and significant in the context of the geology
and mineralisation within the Macquarie Arc, and assists to provide
various vectors for follow up drilling.
A causative porphyry intrusive source for this extensive
mineralisation is yet to be confirmed. A higher grade and
larger intrusive porphyry is Kincora's primary exploration target
and interpreted to be on a lateral setting.
Photo 1: Examples of key high grade mineralised
zones from hole TRDD032
- Banded magnetite-pyroxene-brown garnet skarn in volcaniclastic
sandstone @ 845.9-852.9m, with insert
including massive chalcopyrite which returned 12.6g/t gold, 2.32%
copper over 2m (from 850m)
- Working interpretation is of a cemented
chalcopyrite-pyrite-quartz-carbonate-muscovite-hematite vein
cutting prograde garnet-pyroxene skarn hosting the high-grade
interval and insert of the massive chalcopyrite noted in Photo 1
(1) – close up at 850.1m
With assay results to hand, various intervals of interest have
been noted below this highly mineralised zone, also for petrology
studies. These intervals include: high pyroxene to garnet ratios;
intense calcic plagioclase alteration in rocks with relict
porphyritic textures; and, intermediate-mafic chemistry.
Garnet-pyroxene exoskarn have been noted in volcaniclastic wallrock
adjacent to both these skarn bodies. While there is intense
metasomatic alteration in and adjacent to these skarn bodies, there
is not yet evidence for hydrothermal fluid exsolution.
Most recent hole at the Trundle Park prospect, TRDD033, stepped
out ~225m east of the mineralised magnetite skarns intersected in
TRDD032 and also south to test the southern strike potential of
intrusions intersected to the north (~450m south of previously
intersected mineralised intrusions in hole TRDD010) – see Figure
1. While skarn hosted mineralisation typical of the SEZ was
intersected in TRDD033, which is approximately 660m west from hole TRDD031, it commenced at
significantly shallower depth (from around 243m), was not as well developed and also, in
part, hosted a zone of intense sheet-like veins with multiple minor
felsic intrusions (interpreted to be earlier, not causative) also
noted in the hole.
Analysis and interpretation is ongoing to determine if TRDD033
is correlated to the SEZ or the Eastern Zone at the Trundle Park
prospect, Botfield prospect, or is a different zone in its own
right.
Figure 2: Trundle Park: A typical zoned Macquarie
Arc intrusive system
- Kincora has made one new technical intrusive porphyry discovery
at the Trundle Park prospect the equivalent to Northparkes
- Extensive mineralised footprint at surface across the wider
adjacent prospect areas supports plenty of room for multiple new
discoveries/deposits, and supports the concept of a cluster of
intrusive porphyry targets along strike typical of both the
Northparkes and Cadia mineralised systems
Maiden Kincora air-core
drilling
Kincora's first phase air-core drilling program at Trundle has
returned favorable results at the Dunn's North and Ravenswood South prospects.
The Dunn's North and Ravenswood
South prospects are 3km north and 5.5km north-west respectively
from the Trundle Park prospect – see Figure 2.
Three areas have been identified for a second phase drilling
program seeking to follow up and expand zones with >600 ppm
copper and/or >0.1 g/t gold – see Figure 4.
Permitting and scheduling for this second phase program,
concurrent with air-core drilling at the Mordialloc prospect, is
ongoing and also weather dependent.
Review of vectors for follow up
priority diamond drilling
Recent external reviews have assisted refined geological
interpretations and reconcile grades in the Eastern and Central
Zones at the Trundle Park prospect. Two examples of previously
unidentified causative intrusives have been noted (for holes
TRDD001 and TRDD015) within a zoned, multiple phase, moderately
developed, porphyry intrusive system typical of the Macquarie Arc
(geochronology pending to confirm).
Such systems typically form in clusters of vertically extensive
intrusive porphyry systems within big and highly altered
footprints. As Figures 2 and 5 illustrate, extensive highly altered
and anomalous mineralised footprints are evident at the Trundle
project, both in the north (at the Mordialloc prospects) and south
(at the Dunn's-Trundle
Park-Botfield prospects).
The external reviews have also identified magnetite-rich,
gold-dominant mineralisation in potassic-altered volcanic rocks at
shallow depths. This region has been named the North-East Gold
Zone, located adjacent to the Central Zone at Trundle Park, which
hosts significantly anomalous near surface gold (up to 2.6g/t),
over 400 x 150m and is open to east,
north-east, north, west and at depth.
Kincora's drilling to date at the Trundle Park prospect has
expanded the mineralised footprint from 700m to 1300m with
the NE Gold Zone target and Dunns' prospects open to the north, and
the SEZ target and Botfield prospects open to the south, expected
to further significant expand this.
The width, alteration, bedding, structural interpretations and
mineralisation of the respective multiple skarn zones within the
SEZ, coupled with the alteration and mineralisation observed in the
overlying volcanics from holes TRDD029-32 are providing insights to
the interpreted fluid pathways from the targeted (and yet to be
identified) causative porphyry intrusion and source.
Ongoing internal reviews are concluding, seeking to maximise
vectors and refine drill hole targeting to source of fluids in the
North-East Gold Zone, SEZ and the Botfield prospect (the latter a
large magnetic complex coincident with shallow copper-gold, average
drill depth only 23m, and previous
informal mining activities).
At the Mordialloc North-East prospect, hole TRDD034 was recently
concluded (end of hole 493m) – see
Figure 3. TRDD034 followed up a previous intersected intrusive
porphyry system co-incident with a high amplitude chargeability
high anomaly. Assay results, geological logging and interpretation
are pending.
Exploration outlook
The Company currently has assay results pending for 6 prospects
across 2 projects (Trundle and Fairholme).
At Trundle this includes one diamond hole at Mordialloc
North-East (TRDD034) in addition to the expected near term
conclusion of the ongoing reviews for the North-East Gold Zone, SEZ
and Botfield prospect.
For the Fairholme project this includes 22 air-core holes across
the Anomaly 2, Gateway prospects, Kennel, Glencoe and Driftway-C prospects (with
drilling at the Gateway prospect included under a New Frontiers
Cooperative Drilling program grant – see the January 31st, 2022 press release
"Kincora awarded $389,500 in
drilling grants" for further details).
Permitting and land access is ongoing for a first drill hole at
the Nevertire project (which also has cooperative funding grant
support).
Southern Extension Zone (skarn) discovery – significant
intervals
Table 1: Trundle Park target hole TRDD029 –
Summary of significant intervals
- Cumulative total skarn horizons of 196m
Previously reported – see
Mar 14th, 2022 press release for
further details
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
Table 2: Trundle Park target hole TRDD030 –
Summary of significant intervals
- Cumulative total skarn horizons of 164m
Previously reported – see
Apr 26th, 2022 press release for
further details
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
Table 3: Trundle Park target hole TRDD031 –
Summary of significant intervals
- Cumulative total skarn horizons of 54m
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
Table 4: Trundle Park target hole TRDD032 –
Summary of significant intervals
- Cumulative total skarn horizons of 120m
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
Table 5: Trundle Park target hole TRDD033 –
Summary of significant intervals
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
Table 4: Trundle project – Diamond Hole Collar
Information
Trundle project – Significant Interval Summary (March 31st, 2022)
https://kincoracopper.com/wp-content/uploads/2022/03/20220331_Kincora_Trundle_Significant-Interval-Table.pdf
Figure 3: Mordialloc & Mordialloc NE: Large
systems at north of project
- Two technical intrusive porphyry discoveries at the Mordialloc
& Mordialloc NE prospects
- Kincora is currently following up Mordialloc NE with results of
a diamond drill hole pending, planning for air-core drilling at
Mordialloc
Figure 4: Dunn's
North & Ravenswood South: Near surface targets
- Dunn's North and Ravenswood
South prospects are 3km N and 5.5km NW respectively from Trundle
Park
- Stage 2 drilling proposed to follow up large scale, open pit
depth, gold-copper anomalies
Table 5: Dunn's
North target first phase air-core program – Summary of significant
intervals
Table 6: Dunn's
North target first phase air-core program – Maximum Gold and Copper
Results
Table 7: Ravenswood South target first phase
air-core program – Summary of significant intervals
Table 8: Ravenswood South target first phase
air-core program – Maximum Gold and Copper Results
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/
Figure 5: Trundle: A brownfield setting to
Northparkes
- Eastern side of Northparkes Igneous Complex (NIC) at
Northparkes: >24Moz AuEq, 40% of technical intrusive porphyry
discoveries economic
- Trundle sits on the Western side of the NIC, with big &
highly altered systems within the north & south of the
project
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 TRDD001 and former reported for holes TRDD002-TRDD022.
- 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.
SOURCE Kincora Copper Limited