AYM Anglesey Mining Plc

 
TIDMAYM 
 
Central Alliance engaged for Proof-of-Concept Study on Muon Tomography at Parys 
Mountain 
 
Northern Copper Zone drilling expected to start September 2023 
 
Groundwater studies about to commence as part of the ongoing permitting process 
 
Trading Symbol 
 
AIM: AYM 
 
3rd August 2023 
 
Anglesey Mining plc 
 
("Anglesey" or "the Company") 
 
Parys Mountain - Exploration and Drilling Update 
 
Anglesey Mining plc (AIM:AYM), the UK minerals development company, is pleased 
to provide an update on progress at the Company's Parys Mountain Cu-Zn-Pb-Ag-Au 
project located on the Isle of Anglesey. 
 
Highlights 
 
  · Central Alliance engaged for Proof-of-Concept Study on Muon Tomography at 
Parys Mountain 
  · Northern Copper Zone drilling expected to start September 2023 
  · Groundwater studies about to commence as part of the ongoing permitting 
process 
 
Jo Battershill, Chief Executive of Anglesey Mining, commented: "We are very 
excited to announce the proof-of-concept study with Central Alliance and its 
muon tomography technique. Historical drilling across the Parys Mountain project 
has identified many zones of interest that have not been followed up on or 
included within the current resource estimates and the Morris Shaft provides an 
ideal location to test this cutting-edge exploration tool." 
 
"With conventional geophysical methods being increasingly difficult to employ on 
the Isle of Anglesey due to impediments such as power cables, windfarms and 
roads, the need to develop new technology is becoming more important." 
 
"We believe that the entire Parys Mountain stratigraphy remains highly 
prospective, and that existing mineralisation should extend both along strike 
and at depth, as seen at many other VMS deposits around the world. Bringing 
modern exploration methods to this project could facilitate and expedite both 
the discovery of additional mineralised zones and the development of the current 
known resources." 
 
Summary 
 
The Company confirms it has engaged the ground engineering technical services 
company Central Alliance ("CA") to conduct a Proof-of-Concept study ("PoC") on 
the use of Muon Tomography as an exploratory tool to identify new resources and 
assist with the delineation of existing zones of mineralisation at Parys 
Mountain. Muon Tomography is a technique that measures naturally generated 
subatomic particles, called muons, from which it creates an image of the 
subsurface through density differentials (further details on the technique are 
included in the Appendix to this announcement). The process is analogous to 
medical x-ray imaging. 
 
Muon Tomography has previously been used to deliver accurate spatial 
representation of metallic ore bodies and generate extensive drilling targets 
over large detection areas, as demonstrated in the following paper 
https://www.tandfonline.com/doi/pdf/10.1071/ASEG2015ab054. At Parys Mountain, 
this process should enable much more focused drilling programmes and could 
potentially save drilling costs and time. 
 
Muon sensors will be deployed by CA in stages down the 300m deep Morris Shaft at 
the Parys Mountain mine, with the acquired muon data subsequently analysed 
offsite. The Morris Shaft location will enable CA to conduct an orientation 
survey with the known White Rock and Engine Zone deposits; and potentially 
identify both new zones of interest and extensions to these zones. 
 
As part of the PoC the post-processed muon data set will be interfaced to 
Leapfrog geological modelling software to enable a reconciliation between the 
current geological model and the density anomaly model generated from the 
survey. If the data demonstrates suitability at Parys Mountain, then it will be 
utilised in the upcoming NCZ drilling, which is targeting down to 625m, with a 
downhole tool variant. The NCZ currently has a lateral extent of over 1.2km and 
remains open to the northeast and at depth, therefore it is interpreted to be a 
target-rich environment for additional sulphide discoveries. 
 
Drilling 
 
In addition, the proposed Northern Copper Zone ("NCZ") drilling is expected to 
start shortly, with the drill rig scheduled to be mobilised in the week 
commencing 11 September 2023. The six-hole programme, for approximately 3,725m 
of diamond core drilling, has been designed to increase the resource confidence 
category for the upper levels of the NCZ, extend the high-grade Garth Daniel 
resource estimate and test the Central Zone, which is not currently in the Parys 
Mountain resource estimate. 
 
The six proposed holes could potentially provide numerous pierce points across 
the NCZ, the Garth Daniel Zone and the Central Zone, based on current 
interpretations. Following rig mobilisation in September, the Company expects 
the programme to be completed over approximately six months. 
 
Appendix: 
 
Muon Tomography 
 
Central Alliance have been engaged by Anglesey Mining to conduct a Proof-of 
-Concept study (PoC) whereby the use of Muon Tomography can be used to delineate 
geological boundaries through the modelling of changes in density as measured 
through using Muon Tomography. Muon sensors will be deployed in stages down the 
300-metre-deep Morris Shaft at the Parys Mountain mine, with the acquired muon 
data then analysed offsite. 
 
[image] 
 
 
 
Figure 1 - Schematic section showing the Morris Shaft, the White Rock / Engine 
Zone deposits, and the area to be covered by the proposed Muon Tomography 
survey. 
 
Muon Tomography is a technique that exploits naturally generated subatomic 
particles, called muons, to create an image of the subsurface. The process is 
analogous to medical x-ray imaging, where the source - the upper atmosphere in 
the case of muons - emits particles through a region of interest (ROI) and a 
higher fraction of particles are stopped as the density in the ROI increases. By 
measuring particle flux changes spatially, density changes can also be inferred. 
 
Central Alliance's muon technology is designed and manufactured in the UK by its 
industry partner Geoptic. This multi award winning technology can be applied by 
deploying either NQ-size borehole or underground survey sensors. Large areas can 
be assessed by these sensors with volumes of over tens of millions of cubic 
meters analysed per location. 
 
As part of the PoC, the post processed muon data set will be interfaced to 
Leapfrog (a geological modelling tool) to enable a reconciliation between the 
current geological model and the density anomaly model. 
 
Development of the Muon Tomography method has demonstrated its ability to 
deliver accurate spatial representation of mineralised ore bodies and generate 
extensive drilling targets over large detection areas. This will potentially 
enable a much more focused drilling programme and save drilling costs and time. 
 
Furthermore, a muon study should also enable geologists managing exploration 
programs to more confidently disregard certain areas that do not display any 
high-density anomalies that would traditionally be associated with a zone of 
mineralisation. 
 
About Anglesey Mining plc 
 
Anglesey Mining is traded on the AIM market of the London Stock Exchange and 
currently has 420,093,017 ordinary shares on issue. 
 
Anglesey is developing its 100% owned Parys Mountain Cu-Zn-Pb-Ag-Au deposit in 
North Wales, UK with a reported resource of 5.3 million tonnes at over 4.0% 
combined base metals in the Measured and Indicated categories and 10.8 million 
tonnes at over 2.5% combined base metals in the Inferred category. 
 
Anglesey also holds an almost 50% interest in the Grängesberg Iron project in 
Sweden, together with management rights and a right of first refusal to increase 
its interest to 100%. Anglesey also holds 12% of Labrador Iron Mines Holdings 
Limited, which through its 52% owned subsidiaries, is engaged in the exploration 
and development of direct shipping iron ore deposits in Labrador and Quebec. 
 
About Central Alliance 
 
In March 2018, RSK acquired Central Alliance, a ground engineering technical 
services company headquartered in Wakefield, UK. The company provides ground 
investigation, survey and geomatics, instrumentation and monitoring, specialist 
Electrokinetic consultancy and remediation and applied technologies across all 
sectors including infrastructure, transportation, mining, energy, utilities and 
defence. 
 
Through its in-house experts and advanced technology such as electrokinetic 
geosynthetics, muon tomography, remote instrumentation and remote sensing 
capabilities, Central Alliance has been helping high-profile clients, including 
Network Rail and National Highways to deliver major infrastructure projects. 
 
For further information, please contact: 
 
Anglesey Mining plc 
 
Jo Battershill, Chief Executive - Tel: +44 (0)7540 366000 
 
John Kearney, Chairman - Tel: +1 416 362 6686 
 
Davy 
 
Nominated Adviser & Joint Corporate Broker 
 
Brian Garrahy / Daragh O'Reilly - Tel: +353 1 679 6363 
 
WH Ireland 
 
Joint Corporate Broker 
 
Katy Mitchell / Harry Ansell - Tel: +44 (0) 207 220 1666 
 
LEI: 213800X8BO8EK2B4HQ71 
 
This release can be viewed/downloaded as a PDF by clicking 
HERE (https://www.angleseymining.co.uk/wp 
-content/uploads/2023/08/Parys_Mountain_Muon_Update.pdf) 
 
 
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