Mammoth Minerals (ASX:M79) has commenced reverse circulation drilling at its Excelsior Springs Project in Nevada, US, targeting silver and gold mineralisation across four prospect areas.
The rig will initially test geophysical targets along the Buster gold trend before moving to Blue Dick, which Mammoth says is the primary focus of the campaign. Subsequent drilling is planned at the Imperial and Railroad Springs prospects.
Blue Dick hosts multiple silver-gold trends that have not previously been drill tested or explored using modern methods. Recent mapping and sampling have identified mineralisation across more than 6.5km of cumulative surface strike.
Rock-chip sampling returned up to 15,336 grams per tonne silver (Ag), 7.46g/t gold (Au), 2.53% copper (Cu), and 0.31% antimony (Sb). A channel sample returned 0.20m @ 17,582g/t Ag, 0.75g/t Au, 2.76% Cu, and 1.72% Sb.
Managing Director Glenn Poole says the company aims to test the developing pipeline of targets identified by recent exploration programs.
“The bonanza-type grades we are seeing in surface samples at Blue Dick are strong indicators of a metal-rich system, with Mammoth’s maiden drilling program aiming to extend the mineralisation along strike and down-dip, unlocking the true potential of the more than 6.5km of prospective strike we have mapped,” Poole says.
Along the Buster trend, Mammoth says it will test targets extending over 700m from the historical Buster Mine. The company interprets the geophysical targets as potential fault structures that may have channelled mineralised fluids into limestone host rocks.
Drilling near the historical Imperial Mine will follow up previous intercepts including 28.96m @ 2.23g/t Au from 3.05m and 13.72m @ 4.74g/t Au from 30.48m.
At Railroad Springs, surface sampling returned up to 1,631g/t Ag, 0.3g/t Au, 0.34% Sb, 3.8% lead, and 1.9% zinc.
Mammoth Minerals is an Australian-based resource exploration and development company targeting gold, copper, and silver across the Americas. It expects to report assay results progressively and is targeting a maiden mineral resource estimate for Buster later this quarter.
Write to France Pinzon at Mining.com.au
Images: Mammoth Minerals
