Antipa Minerals (ASX:AZY) said assays from exploration drilling at the Minyari gold-copper project in Western Australia showed high-grade intersections beneath the existing Minyari Dome deposit and several thick gold-copper-silver intersections at the Reaper-Poblano-Serrano area, according to a Monday Australian bourse filing.

Fiama deposit step-out drilling returned 8 meters at 8.2 grams per tonne (g/t) grade of gold and about 1% grade of copper from 257 meters. Air core drilling at Tim's Dome extended mineralization in multiple directions, with results including 4 meters at 1.3 g/t grade of gold and 0.1% grade of copper from 20 meters.

Drilling beneath the Minyari Dome deposit encountered an intercept of 8.4 meters at 1.4 g/t grade of gold and 0.3% grade of copper from 1,234 meters. It hit an intercept of 32 meters at a 1.5 g/t grade of gold, 0.2% grade of copper, and 1.2 g/t grade of silver from 88 meters at the Reaper-Poblano-Serrano area.

Prefeasibility sterilization drilling is ongoing across proposed infrastructure and waste rock sites.

Antipa Minerals' shares fell almost 6% in recent trading on Monday.