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- Castle Minerals (CDT) highlights high-priority targets on the Withnell and Terra Rossa licences in Western Australia’s Earaheedy Basin
- The company engaged consultant, Terra Resources, to review available government and open-file geophysical datasets to delineate the targets
- A similar study is underway on CDT’s Tableland licence applications
- Castle’s geologists have completed a field orientation site visit to Withnell and Terra Rossa to prepare for the first phase of exploration
- Shares closed at 1.4 cents on September 6
Castle Minerals (CDT) has highlighted several high priority targets on the Withnell and Terra Rossa licences in Western Australia’s Earaheedy Basin.
The company engaged consultant, Terra Resources, to review available government and open-file geophysical datasets, in combination with other geological data, to delineate the targets.
According to CDT, the work revealed a number of regional-scale structures that could have acted as conduits for mineralised fluids and as a control for mineral deposition in the sedimentary basin margins — a typical characteristic of SEDEX-style deposits.
Withnell
On the Withnell licence, the company said a targeting study had confirmed the presence of the Frere Formation — Yelma Formation unconformity, which hosts the Chinook-Magazine mineralisation immediately to the north.
The study also reportedly outlined prominent interpreted north–south basement faults and associated splay structures, which pass through the Castle tenure and cross-cut the stratigraphy, presenting a focus for mineralisation to form locally.
Terra Rossa
Meanwhile, on the Terra Rossa licences, several targets have been identified using various survey methods.
An especially high-priority target reportedly occurs along an interpreted basin extension fault that intersects a wedge of Frere Formation sediments overlying Yelma Formation units.
Tablelands
Additionally, Terra Resources is compiling and evaluating available datasets on Castle’s two recent Tableland licence applications, which are situated in the southeast margin of the Earaheedy Basin.
CDT said the company was encouraged by the presence of Yelma Formation and Frere Formation stratigraphic units and their associated unconformity.
The company’s managing director Stephen Stone commented on the findings.
“The geophysicists have confirmed that Castle’s Withnell and Terra Rossa projects have in several areas the right structural architecture and lithologies for targeting SEDEX-style base metals mineralisation,” he said.
“This is reinforced by historical geochemical sampling and drilling that identified multiple base metals anomalies, so our discovery expectations for our 870.5-square-kilometre strategic footprint in the region continue to grow.”
Further, Castle’s geological team has reportedly completed an orientation and reconnaissance site visit at Withnell and Terra Rossa ahead of the design and implementation of its exploration program to test priority targets.
CDT will commence field operations once the licences are granted.
Shares closed at 1.4 cents on September 6, 2021.
