REG-Karelian Diamond Resources Plc: Drilling Target Revealed in Green Diamond Target

Karelian Diamond ResourcesAnnouncement

24/01/2025 07:15

 
    24 January 2025


 

Karelian Diamond Resources PLC

("Karelian" or "the Company")

 

HIGH PRIORITY DRILLING TARGET REVEALED BY GEOPHYSICAL INTERPRETATION OF UAV
ELECTROMAGNETIC SURVEY DATA IN GREEN DIAMOND TARGET AREA

 
* Semi-airborne UAV-based electromagnetic field survey completed and data
processed over the green diamond target area
* Two diatreme-shaped electromagnetic anomalies identified up-ice of the
existing Kimberlite Indicator Mineral fan
 

Karelian Diamond Resources PLC (AIM: KDR) is pleased to announce that a
semi-airborne unmanned aerial vehicle ("UAV") based detailed electromagnetic
("EM") survey has been conducted and the EM data has been processed by Radai
Oy, on behalf of Karelian, over the Company's green diamond target area in the
Kuhmo region of Eastern Finland. A UAV-based EM survey is a geophysical method
used to map the electrical conductivity of the subsurface.

The geophysical interpretation of electromagnetic data has identified two
diatreme-shaped anomalies that could represent the kimberlitic source of the
green diamond (and the indicator mineral fan) that is the focus of the
Company's exploration in the area.  The anomalies are up-ice of the two
highly anomalous basal till sample locations documented in the pitting
programme carried out in 2023 (announced by the Company on 19 December 2023)
and the green diamond previously discovered in till by the Company (as
announced by the Company on 31 January 2017).

The 3D resistivity mesh model obtained from the inversion of the EM data, from
three layers (at the depths of 10 metres, 60 metres and 110 metres below the
surface), reveal a weak (resistivity > 300-1000 m) but confined pipe-like
conductivity anomaly, located to the northwest of the Company's existing
Kimberlite Indicator Mineral ("KIM") fan.  At increasing depths, another
smaller conductivity anomaly appears close to the former.

Weak electromagnetic anomalies are typically related to certain zones of
kimberlites or lamproites which can be highly weathered into clay minerals at
the surface. Combined with the Company's existing high resolution magnetic
data, there is a negative magnetic anomaly overlapping with the main EM
anomaly of the 3D resistivity model. The Company is classifying the resultant
target as a high priority for drilling and has incorporated the testing of
this target into its plans for 2025.

The semi-airborne EM survey was carried out using specialised measurement
equipment created by Radai Oy, attached to a UAV. In this specialised EM
measurement system, the aerial device tows an EM receiver approximately 30
metres behind it. The receiver, together with a transmitter located on the
ground, is capable of measuring the electrical conductivity of the ground and
bedrock.

The EM survey was flown on a Northeast-Southwest orientation with 38 flight
lines at 50 metres spacing and 5 Northwest-Southeast tie-lines 500 metres
apart at a height of circa 40 metres. The survey comprised 70 line-kilometres,
covering an area of 3 km2. The survey was made using multiple transmitter loop
locations, making the total length of flights over 600 kilometres.

Maureen Jones, Managing Director of Karelian, commented:

"We are delighted that this new innovative UAV geophysical survey has been so
successful in the identification of a diatreme shape kimberlite target and
possible source of the green diamond. This kimberlite target is further
supported by the kimberlite indicator mineral fan, making it a very exciting
and high priority drilling target.  We look forward to progressing our
exploration programmes both in Northern Ireland and Finland in addition to
moving the Lahtojoki mining project forward as it moves to the next phase." 

 

 

Further Information:

 

 Karelian Diamond Resources PLC Brendan McMorrow, Chairman Maureen Jones, Managing Director  +353-1-479-6180   
 Allenby Capital Limited (Nomad) Nick Athanas / Nick Harriss                                 +44-20-3328-5656  
 Peterhouse Capital Limited (Joint Broker) Lucy Williams / Duncan Vasey                      +44-20-7469-0930  
 CMC Markets (Joint Broker) Douglas Crippen                                                  +44-20-3003-8632  
 Lothbury Financial Services Michael Padley                                                  +44-20-3290-0707  
 Hall Communications Don Hall                                                                +353-1-660-9377   

 

http://www.kareliandiamondresources.com

 

 

 

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