Azure Minerals (ASX:AZS) has intersected copper porphyry at its flagship Promontorio project in Mexico.
This, the first hole to test the porphyry copper target beneath the Cascada and Promontorio copper-gold-silver deposits, intersected 240 metres of alteration, veining and copper sulphide mineralisation consistent with the margin of a copper porphyry body.
The target comprises two overlapping induced polarisation features, represented by high chargeability and low resistivity anomalies.
This vertical hole successfully reached the target depth of 500 metres, penetrating into the chargeability anomaly and passing through the western edge of the resistivity anomaly.
From a depth of 260 metres the hole intersected porphyry with argillic alteration, abundant disseminated pyrite, and moderate to abundant quartz veins forming a stockwork.
These veins contain variable amounts of sulphide mineralisation, including iron and copper sulphide.
Notably, the hole was still in mineralisation when terminated, and has been cased for re-entry at a later date.
Further testing of the porphyry target is being planned, and drilling is continuing at the Cascada mineralised zone with a second hole in progress.
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