Exploration Update on the Asturmet Cu-Co-Ni Project, Asturias, NW Spain
Deposit characterisation sampling confirms high grade mineralisation at the underground Aramo Mine
Technology Minerals Plc (LSE: TM1), the first listed UK company focused on creating a sustainable circular economy for battery metals, is pleased to announce initial results from a due diligence lithogeochemical characterisation sampling survey at its 100% owned Aramo Copper-Cobalt-Nickel (“Cu-Co-Ni”) Project in Asturias, NW Spain.
Highlights
· Due diligence sampling collected in November 2021 has confirmed high grade Cu-Co-Ni mineralisation at the historic Aramo mine on the St Patrick Licence
· A total of 79 samples were collected on the licence during the campaign, including 53 samples underground at the Aramo Mine on Level 3 in four historical partially stoped areas
· Field programmes are ongoing at the project with a more expansive exploration campaign planned for the St. Patrick Licence in the coming months
A selection of best results include:
Table 1: List of selected results from the characterisation sampling programme
SAMPLE ID |
LOCATION |
LEVEL |
WORKING |
SAMPLE_TYPE |
Co_OG62 % |
Cu_OG62 % |
Ni_OG62 % |
AES49848 |
Aramo Mine |
Level 3 |
Stope B |
Stope Scree |
0.50 |
0.35 |
0.14 |
AES49852 |
Aramo Mine |
Level 3 |
Stope B |
Stope Scree |
0.18 |
20.60 |
0.83 |
AES49853 |
Aramo Mine |
Level 3 |
Stope B |
Stope Scree |
0.25 |
5.31 |
0.51 |
AES49855 |
Aramo Mine |
Level 3 |
Stope B |
Stope Scree |
0.42 |
2.07 |
0.10 |
AES49858 |
Aramo Mine |
Level 3 |
Stope B |
Stope Scree |
0.39 |
28.30 |
1.68 |
AES49860 |
Aramo Mine |
Level 3 |
Stope B |
Stope Scree |
0.50 |
0.63 |
0.08 |
AES43409 |
Aramo Mine |
Level 3 |
Stope B |
Stope Scree |
0.45 |
17.00 |
1.01 |
AES49896 |
Aramo Mine |
Level 3 |
Stope B |
Stope Scree |
0.49 |
16.55 |
0.40 |
AES43401 |
Aramo Mine |
Level 3 |
Stope C |
O\C – Wall rock |
1.88 |
13.25 |
1.10 |
AES49866 |
Aramo Mine |
Level 3.5 |
Stope A |
Stope Scree |
0.39 |
1.58 |
0.10 |
AES49869 |
Aramo Mine |
Level 3.5 |
Stope A |
Stope Scree |
0.50 |
4.27 |
0.14 |
AES49871 |
Aramo Mine |
Level 3.5 |
Stope A |
Stope Scree |
0.39 |
10.05 |
0.55 |
AES49875 |
Aramo Mine |
Level 3.5 |
Stope A |
Stope Scree |
0.35 |
5.11 |
0.29 |
AES43411 |
Aramo Mine |
Level 3.5 |
Stope A |
Stope Scree |
0.20 |
5.01 |
0.42 |
AES49838 |
Aramo Mine |
Level 3 |
Loc-3 |
Float |
0.16 |
>50 |
0.80 |
Asturmet Project
The Company holds 100% of the Aramo Project through its 100% wholly-owned subsidiary, LRH Resources Limited (“LRHR”), and LRHR’s 100% wholly-owned subsidiary Asturmet Recursós S.L. (“Asturmet”).
The Asturmet Project consists of seven exploration permits or P.I. (Permiso del Investigación): St. Patrick (P.I. 30858), St. Andrew (P.I. 30869), St. David (P.I. 30870), Astur A (P.I. 30864), Astur B (P.I. 30865), Astur C (P.I. 30866) and Astur D (P.I. 30868). The licences cover a total area of approximately 461 km2. The St Patrick licence (which covers the historic Aramo Mine), was issued to Asturmet in June 2018. The remaining licences are due to be issued imminently by the Spanish Ministry.
Local Geology
The Cu-Co-Ni Project is classed as an epithermal carbonate hosted deposit and lies within the western closure of the Cantabrian Orocline Fold and Thrust Belt. The Aramo Mine is located within what is termed the Aramo “Caliza de Montana” stratigraphic unit comprising of organic rich limestones. Mineralisation is broadly confined to wide alteration zones with more localised east – west orientated high grade veins and stockwork mineralisation. The alteration zones, which are themselves pervasively mineralised, are interpreted to form extensive “pipe-like” bodies with significant vertical development at major fault intersection planes. These zones develop laterally outwards along individual faults creating the so called “Filon” zones. Lower angled stratigraphic bedding within the host limestones within the pipelike zones appear to create flatter zones or lenses of alteration and mineralisation with a 30-40 degree orientation dipping westwards.
The Aramo Mine
The Aramo mine was most recently in production from 1948 and ceased production in 1953. It has remained dormant for the last 69 years. The mine closed during a period of weak copper prices and a declining Dow Jones index for commodities. The mine has several mineralised zones with extensive alteration and associated Cu-Co-Ni mineralisation at a number of levels over a known vertical extent of 530-m whilst westwards, there lies a further 200-m of vertical prospective stratigraphy above the mine and to the west below the plateau.
Aims of the Sampling
The study involved accessing historical mine workings associated with the Aramo Mine at the accessible upper levels, in particular at the Level 3 elevation (1177m O.D.) to complete a mineral and alteration characterisation study, the full results of the sampling are presented in Table 2. The primary zone sampled comprised the St. Pedro Filon, a 30-40m wide (partially mined) alteration zone which dips westwards at 35-40 degrees. Three stopes within this zone were accessed and a selection of both wall rock and blasted stope piles were sampled.
The characterisation study aimed to collect a broad range of mineralisation and alteration types to better understand the paragenetic model for the deposit and to identify structural controls on the mineralisation. The majority of samples were collected from blasted stope material within the stopes with a selection of wall rock samples in the hanging wall and the footwall of the stoped areas where it was possible.
Results
A total of 79 samples were collected during the campaign and included 53 samples collected at the Aramo Mine on Level 3 in four different stoped areas (as reported here). A further 17 prospecting samples were also collected at locations on the plateau above the mine. These form part of a broader in-progress programme of ongoing sampling in association with characterisation of both rocks and soils for an ongoing hyperspectral remote sensing study. These results will be compiled and assimilated and reported in due course, along with the results of the Remote Sensing Study. A further seven samples comprised QAQC samples which were submitted along with the geochemical samples.
All samples followed a strict sampling and chain of custody process and were analysed by ALS Laboratories in Loughrea, County Galway, Ireland. Samples were analysed by four-acid ICP-AES analysis.
Further work
Field programmes are ongoing at the project with a full and more expansive exploration programme planned for the St. Patrick Licence in the coming months, which includes geological mapping and sampling, remote sensing analysis and geophysics.
Alex Stanbury, Chief Executive Officer of Technology Minerals, said: “We are pleased the initial results from our sampling survey at the historic Aramo mine within the St Patrick licence has confirmed high grade Copper-Cobalt-Nickel mineralisation. In the coming months we plan to expand our exploration campaign which will help us continue to gain a better understanding the full potential of the project. The Asturmet Project forms part of our wider strategy to move forward and advance multiple exploration campaigns across our portfolio of mineral resource projects focused on cobalt, copper, nickel, manganese, and lithium.”
Competent Person
All scientific and technical information in this announcement has been prepared under the supervision of EuroGeol Vaughan Williams M.Sc. P.Geo (a Principal of Aurum Exploration Services who currently provides exploration services to LRHR), and a “qualified person” within the meaning of National Instrument 43-101.Vaughan Williams is also company secretary of LRHR and a Director of LRHR’s Spanish subsidiary Asturmet.
The Directors of the Company accept responsibility for this announcement.
For further information please visit www.technologyminerals.co.uk , @TechnologyMinerals on Twitter, or contact:
Technology Minerals Plc |
|
Alex Stanbury, Chief Executive Officer Lester Kemp, Chief Operating Officer Wilson Robb, Chief Technical Officer |
+44 20 7618 9100 |
Arden Partners Plc |
|
Ruari McGirr, George Morgan |
+44 207 614 5900 |
Luther Pendragon |
|
Harry Chathli, Alexis Gore, John Bick |
+44 20 7618 9100 |