Miramar Resources Limited (ASX:M2R) has identified several large magnetic and/or radiometric anomalies indicating the potential for unmapped igneous intrusions, including carbonatites capable of hosting rare earth element (REE) mineralisation following the completion of a detailed aeromagnetic and radiometric survey recently flown over the Dooley Downs Project
The Dooley Downs Project, part of the Miramar’s larger Bangemall Project in Western Australia, is located within the rapidly emerging Capricorn Orogen mineral province, which hosts Hastings Technology Metals’ Yangibana REE Project and recent REE discoveries by Dreadnought Resources Ltd and Lanthanein Resources Ltd.
Miramar field staff immediately mobilised to the Project to conduct initial reconnaissance of the targets.
Miramar’s Executive Chairman, Allan Kelly, said the new survey data had highlighted several large targets worthy of systematic follow-up work.
“We are seeing numerous large radiometric anomalies which appear to be spatially related to potentially unmapped intrusions, something unexpected for this area” he said.
“Given the REE discoveries being made by some of our neighbours nearby, the new results are highly significant for the overall prospectivity of our Bangemall Project tenements,” he added.
Magnetic/Radiometric Survey
The company recenly commissioned a detailed airborne magnetic and radiometric survey across the large Dooley Downs Exploration Licence, E09/2484.
The survey, completed for the company by Thomson Airborne, highlighted a number of magnetic and/or radiometric features which resemble igneous intrusions within the Edmund Basin sediments.
A number of ovoid magnetic features, ranging in size from 600m x 600m to 6km x 2km, have been identified in the south-eastern part of the Project, surrounding Eden Bore.
The largest of the magnetic anomalies has been previously mapped as an anticline within sediments of the Edmund Basin, however the new magnetic data, along with a large radiometric anomaly suggests the presence of a later intrusion, possibly beneath the centre of the anticline.
A number of smaller but stronger coincident Thorium and Uranium anomalies are seen southeast of Eden Bore and are located within and/or on the margin of the intrusions interpreted from the magnetic data.
The most obvious of the smaller anomalies is also located over a circular magnetic low.
Miramar field staff visited the Project after the new data was received and visited several of the anomalous areas, but no obvious surficial or topographic features were seen that could explain the anomalism.
Scintillometer readings were elevated over the “Eden Bore” target and several samples of ironstone float were taken which will be sent for analysis of a multi-element suite, including REE’s.
Mr Kelly said that, given the size and number of the targets generated from this survey, the company was planning to conduct further work, including more detailed ground geophysics and geochemical surveys with the aim of defining drill targets for testing.
“If these anomalies in the Edmund Basin are caused by igneous intrusions, and potentially carbonatites, it would be extremely significant for the prospectivity of the wider Gascoyne region,” he said.
The company plans to fly similar magnetic and radiometric surveys over its other Bangemall Project tenements once granted.
For further information please visit: https://www.miramarresources.com.au/
