Ragged Range Project, WA. Electromagnetic Survey Commences over Nickel Gossan
The directors of Thor Mining Plc (“Thor”) (AIM, ASX: THR, OTCQB: THORF) are pleased to announce that a groundbased electromagnetic survey over the nickel gossan now referred to as the Krona Prospect has commenced at the Company’s 100% owned Ragged Range Project, located in the Eastern Pilbara, Western Australia.
- A high-powered Fixed Loop Electromagnetics (FLEM) ground geophysics survey has commenced at the Krona Prospect, extending over the untested nickel gossan located in the western portion of the tenure (Figure 1 and 2).
- The survey is designed to detect conductive anomalies at depth that may indicate the presence of nickel sulphide mineralisation.
- The nickel gossan is located at the basal conduct of the Dalton Suite ultramafic unit (altered Archean Komatiite) in the classic location for nickel sulphide mineralisation.
- Lithium: Concurrently the Thor team is on the ground mapping and sampling several lithium targets, including potential lithium-caesium-tantalum (LCT) pegmatites which have been identified within the prospective 10km radius of the Split Rock Supersuite at Thor’s Ragged Range Project (Figure 1).
- Gold: Final preparations are in place to commence the second phase of RC drilling at the Sterling Gold Prospect.
Photo Plate 1: Nickel gossan, Krona Prospect may be viewed via the following link:
Nicole Galloway Warland, Managing Director of Thor Mining, commented:
“Thor is excited to see the geophysics crew begin work on the ground after nearly one year of waiting for this survey to commence as a result of WA border closure and high demand on geophysics crews.
“Geological mapping and sampling indicate that the gossan extends over 1km, with geochemistry highlighting anomalous nickel and chromium. The electromagnetic survey is expected to identify the most prospective areas of nickel sulphide mineralisation at depth to conduct initial drill testing and will take around one week to complete, with results to follow soon after.
“Concurrently, we are working to map and sample several targets prospective for lithium identified within a 10km radius of the Split Rock Supersuite at Ragged Range as well as finalising preparations to commence RC drilling at the Sterling Gold prospect, following up on structurally controlled anomalous gold in streams and soils.
“We look forward to updating the market as soon as results are available.”
Figure 1 : Position of Fixed Loop Electromagnetic Survey over nickel gossan may be viewed by the following link:
Figure 2: Tenement Location Plan overlying GSWA 1:500k geology showing distribution of Split Rock Supersuite with priority lithium target areas (Red dash ovals), nickel gossan (purple outline) and Sterling gold prospect (yellow stripes) may be viewed by the following link:
The Ragged Range Project, located in the prospectve Eastern Pilbara Craton, Western Australia, is 100% owned by Thor Mining – covering E46/1190, E46/1262, E46/1355, E46/1340 and recently granted E46/1393 (Figure 2).
Whilst the FLEM survey is underway, the Thor geological team are progressing:
· The investigation of all small granitic and pegmatitic bodies in the lithium target area, focusing on the prospective 10km halo of the Mondana Monzogranite, part of the Split Rock Supersuite (E46/1262, E46/1190, E461393 and E46/1340) (Figure 1).
· Preparations for RC drilling at the Sterling Prospect following up on structurally controlled anomalous gold in streams and soils.
· An Airborne magnetic/radiometric survey, scheduled to be flown over the eastern portion of the tenure (including E46/1340 and E46/1393) in the near future.
A high-powered, Fixed Loop Electromagnetics (FLEM), ground geophysics survey has commenced over the Krona prospect, covering the full extent of the nickel gossan, located in the western portion of the tenure (Figures 1 and 2). The survey is being undertaken by Vortex Geophysics Pty Ltd.
The ground geophysics survey is designed to detect conductive anomalies at depth that may indicate the presence of nickel sulphide mineralisation to constrain initial drill testing. The FLEM survey is anticipated to take one week to complete.
The gossan was initially identified by the Western Australian Geological Survey on the Split Rock 1:100K mapping explanatory notes (Bagas et al., 2004). The gossan extends over 1km x 100m and lies on the basal contact of the Dalton Suite ultramafics along with the older Wyman Formation felsic volcanics. Sampling by Thor in 2020 highlighted nickel grades up to 2,678ppm Ni (20PRC444), with chromium up to 2,607ppm Cr (20PRC05) (ASX: THR 26 August 2020), (Photo Plate 2).
Magmatic nickel sulphide deposits lie at the base of mafic and ultramafic bodies and tend to be closely associated with major deep tapping structures.
Photo Plate 2 may be viewed via the following link:
Bagas et al., 2004. Geology of the Spilt Roc 1:100,000 Sheet. 1:00,000 Geological Series. Geological Survey of Western Australia
This announcement is authorised for release to the market by the Board of Directors.
For further information, please contact:
Thor Mining PLC
Nicole Galloway Warland, Managing Director
Ray Ridge, CFO / Company Secretary
Tel: +61 (8) 7324 1935
Tel: +61 (8) 7324 1935
Competent Persons Report
The information in this report that relates to exploration results is based on information compiled by Nicole Galloway Warland, who holds a BSc Applied geology (HONS) and who is a Member of The Australian Institute of Geoscientists. Ms Galloway Warland is an employee of Thor Mining PLC. She has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which she is 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’. Nicole Galloway Warland consents to the inclusion in the report of the matters based on her information in the form and context in which it appears.
Updates on the Company’s activities are regularly posted on Thor’s website www.thormining.com , which includes a facility to register to receive these updates by email, and on the Company’s Twitter page @ThorMining
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