Strong EM Conductors Detected Over Approximately 5000m
Pursuit Minerals Limited (ASX:PUR) preliminary airborne EM data (AEM) from the Calingiri East exploration licence on the Warrior PGE-Ni-Cu project Western Australia, has identified five highly prospective targets.
The five “late-time” EM conductors, over a combined strike length ~5000m, have been recognised in preliminary AEM data.
The AEM conductors are associated with magnetic anomalies which are interpreted to be due to mafic or ultramafic intrusive rocks, which are known to host the PGE-Ni-Cu sulphide mineralisation at the Gonneville intrusion on Chalice Mining Limited’s Julimar PGE-Ni-Cu Project.
CEO, Mark Freeman, said Pursuit considers the five AEM / magnetic anomalies to be high priority PGE-Ni-Cu targets.
As a result of the recognition of the five targets at Calingiri East, Pursuit is extending the Calingiri East survey block and will fly an additional 207 line/km of AEM data.
In relation to the preliminary results from the Calingiri East AEM survey block, Pursuit CEO, Mark Freeman, said:
“The PGE-Ni-Cu targets which have been recognised from the preliminary data from the Calingiri East AEM survey block, demonstrate how the application of AEM surveys to PGE-Ni-Cu exploration can rapidly advance a project and generate highly prospective targets for drill testing,” Mr Freeman said.
“To have defined focussed quality targets from the preliminary data is very encouraging and we look forward to identifying further targets from the remainder of the Warrior AEM survey and then drill testing the highest priority targets as soon as practicable.”
Stage 1 of the Warrior Project AEM survey has now been increased to 1922 line/kms’ with 406 line/km’s having been flown to 18 February 2021.
The western margin of the Archean Yilgarn Craton is highly prospective for Platinum Group Elements (PGE) and Nickel (Ni) – Copper (Cu) sulphide mineralisation associated with intrusive mafic to ultramafic rocks. The discovery of PGE-Ni-Cu mineralisation on the Julimar Project held by Chalice Mining Limited is the first significant PGE-Ni-Cu discovery in the region. These prospective mafic-ultramafic intrusions which host Chalice Mining’s PGE-Ni-Cu mineralisation are far more widespread than previously thought throughout the western margin of the Yilgarn Craton and appear to be present at Calingiri East.
The PGE-Ni-Cu mineralisation at the Gonneville mafic-ultramafic intrusion was discovered by drilling a discrete moving-loop electromagnetic (EM) anomaly associated with a high amplitude aeromagnetic anomaly. The aeromagnetic anomaly is due to the mafic-ultramafic intrusion which hosts the PGE-Ni-Cu mineralisation. The PGE-Ni-Cu mineralisation at Gonneville is strongly conductive and produces a significant anomaly in the EM data. Chalice Mining’s success has demonstrated that the exploration approach of identifying prospective mafic-ultramafic intrusions from aeromagnetic data and then generating drill targets from EM surveys, is an effective method for targeting PGE-Ni-Cu sulphide mineralisation within the West Yilgarn province.
The Warrior project airborne EM survey has been designed to locate conductors related to massive sulphide PGE-Ni-Cu mineralisation associated with mafic and ultramafic intrusions. Conductors associated with magnetic anomalies, interpreted to be due to mafic and ultramafic intrusions will be prioritised for ground follow up.
