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Highlights:
- C29 Metals Limited (ASX:C29) has reviewed the existing geophysical datasets for Mayfield.
- Based on the review of the previously available dataset, the company has determined that reprocessing aeromagnetic and sub-audio data would improve their quality.
- The Cloncurry district (Mt Isa Eastern Succession) mineralisation has a characteristic property of positive gravity anomaly.
- C29 Metals and an independent geophysical advisor have designed the high-resolution gravity survey.
ASX-listed copper explorer C29 Metals Limited (ASX:C29) has announced the commencement of exploration activities at its Mayfield copper-gold project near Mt Isa in Queensland. The company has reviewed the existing geophysical datasets which includes magnetics, radiometric, sub-audio magnetic, gravity with the available datasets for Mayfield. The data is evaluated for resolution and quality before the company commences the fieldwork.
Based on the analysis, the company determined that reprocessing the existing aeromagnetic and sub-audio magnetic data would improve definition and targeting ability. At the same time, it will also allow for a better compilation of the data sets.
Source: Company’s update
The Cloncurry district (Mt Isa Eastern Succession) is known for Iron-Oxide Copper-Gold (IOCG) mineralisation. However, it hosts highly diverse mineralisation. The deposit styles besides IOCG present in the region are Iron Sulfide Copper-Gold (ISCG), Broken Hill Type (BHT), Sedex, Skarn, and Cu-Mo intrusion. All these deposit styles have a positive gravity anomaly due to their metal content and density of the mineralised rocks.
Source: Company’s update
To tap this characteristic feature and cover up the resolution issues of the existing gravity dataset, C29 Metals is preparing for an extensive ground gravity survey comprising more than 400 stations. The acquired high-resolution gravity data will also assist in more informed targeting of future exploration, including drilling and electrical geophysical surveys.
Click here to learn more about the company's last quarter's activities.
C29 Metals worked jointly with an independent geophysical advisor to design the gravity survey, thereby reducing the data spacing to a minimum of 400m x 400m or closer over known prospects. The company has engaged a geophysical contractor to execute the survey and the fieldwork. The work will commence in the next 14 days, and the results are due within the month.
What’s next?
The newly acquired gravity dataset will be processed and used along with the existing geochemistry, geophysics, and drilling data to determine priority targets for electrical geophysical methods such as IP. The company aims to define and rank a suite of targets that can be drill-tested in 2023.
