TIDMAAU
RNS Number : 6606S
Ariana Resources PLC
13 March 2023
13 March 2023
AIM: AAU
GEOPHYSICAL SURVEY RESULTS AT KEPEZ
Ariana Resources plc ("Ariana" or "the Company"), the AIM-listed
mineral exploration and development company with gold mining
interests in Europe, is pleased to announce positive results from
an Induced Polarisation ("IP")/Resistivity geophysical survey
conducted at the Kepez North and Kepez Main areas of the Kiziltepe
Sector. Both Kepez Main and Kepez North are part of Zenit
Madencilik San. ve Tic. A.S. ("Zenit"), in partnership with Proccea
Construction Co. and Ozaltin Holding A.S. and, is 23.5% owned by
Ariana.
Highlights:
-- Three significant target areas identified within Kepez Main
show potential for gold and silver mineralisation.
-- Results from the latest geophysical data support the presence
of a fully intact low-sulphidation epithermal vein system at Kepez
Main.
-- Additional exploration potential was identified at the
high-grade Kepez North area, which will need to be drill tested
further.
Dr. Kerim Sener, Managing Director, commented:
"We are highly encouraged by the results of the latest
geophysical surveys undertaken in the Kepez area. We have
potentially identified a fully intact epithermal vein system
preserved beneath a silica cap at Kepez Main, which is associated
with very high-grade silver mineralisation up to almost 400 g/t Ag
with lower-grade gold of about 1.5 g/t Au. Initial drilling that
was undertaken in the northern part of Kepez Main has identified
extensive zones of silicification and quartz-vein textures
indicative of the uppermost parts of a low-sulphidation epithermal
vein system. The presence of high-grade gold mineralisation at
Kepez North and the discovery of high-grade gold at Kepez South,
either side of the Kepez Main area, indicates the prospectivity of
this system for what could become a major new discovery.
Kepez Main is characterised by several mineralisation,
alteration and geochemical features, among others, which suggest
potential for a deep drilling target which lies near the potential
bonanza-zone within an epithermal system. Unlike Kiziltepe, which
represents a significantly eroded epithermal system, Kepez Main
appears to have the entire system preserved making it an extremely
compelling exploration target. These are some of the most exciting
exploration results we have ever reported from the broader
Kiziltepe Sector in many years and we are highly motivated to do
the work necessary to make a significant discovery."
The information contained within this announcement is deemed by
the Company to constitute inside information as stipulated under
the Market Abuse Regulations (EU) No. 596/2014 as it forms part of
UK Domestic Law by virtue of the European Union (Withdrawal) Act
2018 ("UK MAR").
Details of the Geophysical Programme
This update comprises part two in a series of updates on an
extensive review, infill and new geophysical surveying of certain
areas across the Kiziltepe Sector and its various prospects. Part
one was previously discussed in an announcement made on the 22(nd)
February 2023, focusing on the Kiziltepe mine area. The recent
geophysical programmes were undertaken over four prospects located
within the Sindirgi Gold Corridor, a northeast-trending mineralised
zone extending from the Kiziltepe mine in the southwest to the
Kizilcukur Project in the northeast. This work included
IP/Resistivity surveys over the Kiziltepe mine area, Kepez Main,
Kepez North and an Unmanned Aerial Vehicle ("UAV") magnetic survey
over Kizilcukur (Figure 1).
Figure 1: The Sindirgi Gold Corridor with defined prospects and
areas currently covered by geophysical datasets.
The geophysical results reported in this update are from the
Kepez Main and Kepez North prospects (Figure 2) covering a total
area of 4 km(2). In addition, historic data from Kepez West is
currently undergoing reprocessing and interpretation. The results
from the UAV magnetic survey at Kizilcukur are currently being
processed and reviewed.
Figure 2: Overview map showing the geophysical IP/Resistivity
survey lines over Kepez Main and Kepez North.
Kepez Main
In late 2022, data was collected from 10 northwest-southeast
oriented IP/Resistivity profiles, which were spaced 200m apart with
a total length of 16.8km. A pole-dipole array was used with a 25m
electrode spacing, using a Canada GDD TxII-5000W transmitter and a
France Iris Elrec Pro 10 receiver operating in the time domain. The
vertical limit of the survey data under topography is approximately
200m. The survey lines were designed to cover the full extent of
the Kepez Main vein system and aimed to identify moderate to deep
targets within the vertical limits of the data, while highlighting
structural and mineralisation trends.
Kepez Main extends for a total of 1,800m and is associated with
opal, chalcedony and silica replacement of volcanic host units
along a primary northeast-southwest to north-south trending
structure. Large chalcedony-quartz vein outcrops, 2-4m wide and up
to 3m high, are best exposed in the northern area of Kepez Main, on
the northwestern periphery of the village of Kepez. In 2021, three
initial diamond drill holes were completed in this area with no
significant gold results. However, quartz showing low-sulphidation
textures was intercepted, suggesting the presence of a silica cap.
Historic rock-chip and channel sampling over the vein outcrops
returned sporadic anomalous grades of gold and silver. In addition,
portable XRF soil samples identified anomalous levels of arsenic,
antimony and sulphur, suggesting a low temperature epithermal
environment.
During 2013, a highly silver-rich extension of Kepez Main was
identified from grab samples from steep scree slopes on the western
side of Kepez Hill. These returned grades of 383.0 g/t Ag + 1.50
g/t Au, 234.0 g/t Ag + 1.73 g/t Au and 196.0 g/t Ag + 1.51 g/t Au
(see announcement dated 23(rd) September 2013). The source of the
mineralised scree was traced to several steep quartz-ginguro banded
cliff face exposures downslope of the exposed chalcedony-quartz
vein outcrops.
It is now concluded that the exposures of quartz veins at the
top of the Kepez Hill represent the top of the epithermal vein
system, where the concentration of precious metals is typically low
to not present (Figure 3: "Barren-trace precious metal interval").
Meanwhile, the exposures of ginguro-banded quartz veins down-slope
of the Kepez Hill are interpreted to represent the upper most
region of the "low-moderate grade precious metal interval" (Figure
3).
The results of the Kepez Main IP/Resistivity survey show a
series of generally northeast-southwest trending IP and resistivity
anomalies (Figure 3). The outcropping Kepez Main hilltop quartz
veins correlate exceptionally well with a northwest dipping high
resistivity signature.
Figure 3: Mineralisation model of a typical low-sulfidation
epithermal vein system shown in cross-section (at left) and 3D
resistivity model of the Kepez Main vein system with the
interpreted structures in blue, proposed drill locations in red to
test the deeper epithermal system (at right).
Moderate to high resistivity anomalies noted particularly in the
northeast (Line 6), are interpreted to represent a large silica cap
preserving the system and creating a localised high point in the
surrounding terrain. At moderate depth levels, the chargeability
anomalies increase in intensity, which likely signifies the
presence of sulphide minerals and/or clay alteration associated
with the development of the low-suphidation epithermal system.
Three different types of targets have been defined from the IP
geophysical survey at Kepez Main:
1. At the north-eastern end and central region of the project
area, the IP resistivity anomalies peak at surface, likely due to
unconsolidated rock mass (quartz scree). Similar peaks are noted at
the Kepez North scree slopes. Further investigation by sampling,
trenching and/or drilling is required to understand the
significance of these surface resistivity peaks and to test their
potential to host mineralised material.
2. Shallow to near surface resistivity anomalies, also located
in the north-eastern and central region of the study area, are of
significant interest. These appear to correlate to the Kepez Main
banded ginguro-quartz mineralisation and a series of small
workings. These locations are expected to be tested with a series
of closely spaced shallow drill holes.
3. Deep (>150m) chargeability anomalies suggest that the
Kepez Main system continues at depth as a preserved and
fully-intact low-sulphidation epithermal vein system. Some of these
deeper targets will be tested on the northwest slope of Kepez
Main.
Kepez North
Data was collected from 5 east-west oriented IP/Resistivity
profiles, which were spaced 100m apart with a total length of
2.75km (Figure 4). These lines were designed to cover the Kepez
North resource area, testing areas of known mineralisation, and
then extending the lines to the north and south to seek IP
signatures which could suggest the continuity of
mineralisation.
Kepez North is positioned at the contact between dacitic
pyroclastic and ophiolitic rocks and dips at 50deg to the west. The
majority of the gold mineralisation in this vein occurs in a matrix
supported hydrothermal quartz breccia hosted within a limited zone
of approximately 150m along strike. This area was originally
defined by significant gold grades obtained from systematic rock
saw sampling and drilling, and has subsequently been mined in 2022.
However, the gold grades at the north and south of this system
appeared not to continue along strike. The latest geophysics
coupled with the grade control data obtained through mining
suggests that the higher-grade zone of mineralisation plunges
towards the southwest along the 50deg inclined plane and this
concept is expected to be tested further by drilling.
Figure 4: 3D resistivity (above) and IP model (below) of the
Kepez North vein system (red) with the open pit (black).
The resistivity anomaly confirms that the quartz vein continues
north for a further 150m with a very similar dip angle. This area
will be a priority for further drilling along with the down-plunge
areas of the high-grade mineralisation towards the south. In
addition, the character of the chargeability anomalies changes from
north to south. Following the completion of mining in the Kepez
North Reserve in 2022, the geology exposed in the pit walls
provided an improved understanding of the controls on gold
mineralisation. The sulphide mineralisation encountered in the
footwall block guides the interpretation of the chargeability
anomalies in the south ahead of future drill testing.
Contacts:
Ariana Resources plc Tel: +44 (0) 20 7407 3616
Michael de Villiers, Chairman
Kerim Sener, Managing Director
Beaumont Cornish Limited Tel: +44 (0) 20 7628 3396
Roland Cornish / Felicity Geidt
Panmure Gordon (UK) Limited Tel: +44 (0) 20 7886 2500
John Prior / Hugh Rich / Atholl
Tweedie
Yellow Jersey PR Limited Tel: +44 (0) 7951 402 336
Dom Barretto / Shivantha Thambirajah arianaresources@yellowjerseypr.com
/
Bessie Elliot
Editors' Note:
The information in this announcement that relates to exploration
results is based on information compiled by Dr. Kerim Sener BSc
(Hons), MSc, PhD, Managing Director of Ariana Resources plc. Dr.
Sener is a Fellow of The Geological Society of London and a Member
of The Institute of Materials, Minerals and Mining and has
sufficient experience relevant to the styles of mineralisation and
type of deposit under consideration and to the activity that has
been undertaken to qualify as a Competent Person as defined by the
2012 edition of the Australasian Code for the Reporting of
Exploration Results, Mineral Resources and Ore Reserves (JORC Code)
and under the AIM Rules - Note for Mining and Oil & Gas
Companies. Dr. Sener consents to the inclusion in the report of the
matters based on his information in the form and context in which
it appears.
About Ariana Resources:
Ariana is an AIM-listed mineral exploration and development
company with an exceptional track-record of creating value for its
shareholders through its interests in active mining projects and
investments in exploration companies. Its current interests include
gold production in Turkey and copper-gold exploration and
development projects in Cyprus and Kosovo.
The Company holds 23.5% interest in Zenit Madencilik San. ve
Tic. A.S. a joint venture with Ozaltin Holding A.S. and Proccea
Construction Co. in Turkey which contains a depleted total of c.
2.1 million ounces of gold and other metals (as at February 2022).
The joint venture comprises the Kiziltepe Mine and the Tavsan and
Salinbas projects.
The Kiziltepe Gold-Silver Mine is located in western Turkey and
contains a depleted JORC Measured, Indicated and Inferred Resource
of 222,000 ounces gold and 3.8 million ounces silver (as at
February 2022). The mine has been in pro table production since
2017 and is expected to produce at a rate of c.20,000 ounces of
gold per annum to at least the mid-2020s. A Net Smelter Return
("NSR") royalty of 2.5% on production is being paid to
Franco-Nevada Corporation.
The Tavsan Gold Mine is located in western Turkey and contains a
JORC Measured, Indicated and Inferred Resource of 307,000 ounces
gold and 1.1 million million ounces silver (as at November 2022).
Following the approval of its Environmental Impact Assessment and
associated permitting, Tavsan is being developed as the second gold
mining operation in Turkey. Construction progress is temporarily
suspended pending the outcome of a local court decision pertaining
to the EIA. A NSR royalty of up to 2% on future production is
payable to Sandstorm Gold.
The Salinbas Gold Project is located in north-eastern Turkey and
contains a JORC Measured, Indicated and Inferred Resource of 1.5
million ounces of gold (as at July 2020). It is located within the
multi-million ounce Artvin Gold eld, which contains the "Hot Gold
Corridor" comprising several signi cant gold- copper projects
including the 4 million ounce Hot Maden project, which lies 16km to
the south of Salinbas. A NSR royalty of up to 2% on future
production is payable to Eldorado Gold Corporation.
Ariana owns 100% of Australia-registered Asgard Metals Fund
("Asgard"), as part of the Company's proprietary Project Catalyst
Strategy. The Fund is focused on investments in high-value
potential, discovery-stage mineral exploration companies located
across the Eastern Hemisphere and within easy reach of Ariana's
operational hubs in Australia, Turkey and the UK.
Ariana owns 75% of UK-registered Western Tethyan Resources Ltd
("WTR"), which operates across south-eastern Europe and is based in
Pristina, Republic of Kosovo. The company is targeting its
exploration on major copper-gold deposits across the
porphyry-epithermal transition. WTR is being funded through a
ve-year Alliance Agreement with Newmont Corporation (
www.newmont.com ).
Ariana owns 50% (increasing to 58%) of UK-registered Venus
Minerals Ltd ("Venus") which is focused on the exploration and
development of copper-gold assets in Cyprus which contain a
combined JORC Indicated and Inferred Resource of 17Mt @ 0.45% to
1.10% copper (excluding additional gold, silver and zinc.
Panmure Gordon (UK) Limited is broker to the Company and
Beaumont Cornish Limited is the Company's Nominated Adviser and
Broker.
For further information on Ariana you are invited to visit the
Company's website at www.arianaresources.com .
Glossary of Technical Terms:
"IP" Induced Polarisation;
"km" Kilometres;
"m" Metres;
"UAV" Unmanned Aerial Vehicle;
Ends.
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