Castle Graphite project Southern Cross

Castle Minerals uncovers ‘high-priority’ anomalies at Great Southern Graphite Project, WA

Castle Minerals (ASX:CDT) reports it has identified eight ‘high-priority’ anomalies for follow-up investigation and improved understanding of the controls on mineralisation at its Great Southern Graphite Project’s Kendenup and Martagallup licences.

Specifically at Kendenup, the orientation ground electromagnetic (EM) survey anomalies generally follow an east-west trend, which the company reports is coincident with the stratigraphy in the area and is directly on strike with the known occurrence of the historical Kendenup graphite mine, 500m to the west.

The explorer and project incubator said the anomaly is also aligned with a strong fixed line EM (FLEM) anomaly outlined in 2013 by a previous licence holder.

This was drilled for base metals and while returning only minor levels did intersect a zone of graphitic schist.

The survey at Martagallup was carried out over a reported graphite occurrence close to a conductive small salt lake.

This lake somewhat affected results by obscuring any underlying conductive anomalies  associated with graphite mineralisation. However, four single point late-time anomalies gave sufficient encouragement that additional graphite mineralisation is present in the area.

Commenting on the results, Castle Managing Director Stephen Stone said: “The eight high-priority anomalies identified by a recent Loupe EM survey on Castle’s Great Southern Graphite Project’s Kendenup and Martagallup licences reinforce our view that there is considerably more graphite mineralisation to be discovered in the area.

“Having proven the effectiveness of the new Loupe technology we plan to extend our work across more areas of interest”

Having proven the effectiveness of the new Loupe technology we plan to extend our work across more areas of interest.

The recent Mt Barrow exploration licence application substantially expands our presence in the region and so justifies the commissioning of a low-impact and complementary airborne EM survey to facilitate a rapid determination as to where we  should focus our attention.”

The project is situated within rocks of the Paleoproterozoic to Mesoproterozoic Fraser-Albany orogen. These rocks are adjacent to the southern margin of the Yilgarn carton, occurring in a broad east-west trending band for a distance of approximately 800km along the southern coast of Western Australia.

The Fraser-Albany rocks contain several graphite occurrences and some historical workings which commonly are found within kaolinitic iron-rich zones as observed at the historical Kendenup and Martagallup workings.

Castle’s Battery Metals project holdings include the Kambale graphite project, Ghana, where an extensive RC drilling campaign is underway and the Woodcutters and Wilgee Springs lithium exploration projects.

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Written By Adam Orlando
Mining.com.au Editor-in-Chief Adam Orlando has more than 20 years’ experience in the media having held senior roles at various publications, including as Asia-Pacific Sector Head (Mining) at global newswire Acuris (formerly Mergermarket). Orlando has worked in newsrooms around the world including Hong Kong, Singapore, London, and Sydney.