MaCauley Creek copper finds boost confidence
The finds, during a recent surface mapping and sampling program, included visible skarn-style copper mineralisation extending over 850m strike length at the Wallaroo prospect.
There was visible copper mineralisation and gossanous limestone and porphyry at Mount Brown.
Inca said the Carraway North prospect, renamed Copper Cliffs, showed visible copper mineralisation extending over 550m strike length, varying in width from 5m to 15m.
The purpose of the field tip was to investigate recently identified prospect areas generated from an independent review and remodelling of historical geophysical and geochemical data.
The company also aimed to investigate other new prospect areas identified in the central and southern parts of the project area.
“Among other positive results, mapping has identified several mineralised skarn occurrences and a gossanous porphyry. A gossan is the weathered remains of sulphide mineralisation,” the company stated in its report to the ASX.
“Accordingly, the project has been elevated in terms of its potential to host skarn and/or porphyry/intrusive-related mineralisation with the discovery of multiple new and extensive occurrences of visible copper mineralisation reinforcing the opportunity to make a Tier-1 scale copper discovery.”
A total of 110 samples were collected from 12 prospect areas, with assay results pending.
A detailed AMAGRAD survey covering the northern third and the southeast corner of MaCauley Creek is planned for the coming weeks.
Inca said the survey, of about 3000-line kilometres, would assist in refining the northern prospects and Mount Podge.
The company said it was likely that follow-up ground geophysics – principally IP surveying – would be necessary for detailed drill targeting studies.
Other possible exploration techniques being assessed include soil sampling, ground magnetic surveying, and prospect scale mapping.