Mammoth Minerals (ASX:M79) reports a ‘significant’ gold intercept from recent reverse circulation (RC) drilling at its Excelsior Springs Gold-Silver Project in Nevada, US.
Hole MEXRC2637 returned 10.67m @ 3.76 grams per tonne gold (Au) from 198.2m, including 4.6m @ 6.86g/t Au from 199.7m. The intercept represents a new parallel ‘high-grade’ zone over 700m along strike from the main Buster Gold Mine zone at the Lunchbox Ridge prospect.
“This exciting high-grade result from step-out drilling along the Buster Trend has opened up a significant new target horizon, redefining the potential within the Buster Shear corridor,” Managing Director Glenn Poole says.
“Drilling in this area was targeting a deeper geophysical feature that was untested by historical drill holes, with the exceptional result highlighting further growth opportunities along the broader Buster Gold Trend.”
Recent drilling at the Buster Trend also returned 22.9m @ 1.37g/t Au from 10.7m, including 3m @ 4.15g/t Au from 22.9m in hole MEXRC2635; and 12.2m @ 1.57g/t Au from 32m, including 4.6m @ 3.31g/t Au from 38.1m in hole MEXRC2634.
Surface sampling across the broader Excelsior Project continues to deliver ‘high-grade’ results. At Blue Dick, significant results include 1,190g/t silver (Ag) and 4.7g/t Au; 891g/t Ag and 10.7g/t Au; and 708g/t Ag and 9.6g/t Au.
As part of the current 29-hole program at Blue Dick, the company has completed nine RC holes for 1,800m, with a further 20 planned across priority ‘high-grade’ trends and targets. The program aims to test four trends identified across more than 6.5km of mapped mineralisation.
The Kentucky zone in the southwest of the Excelsior claims block continues to expand, with results including 3,877g/t Ag and 2.3g/t Au, and 1,612g/t Ag. Poole says the zone represents a walk-up drill target.
The latest intercepts sit beyond the limits of historical drilling along the Buster Trend. Mammoth interpreted the geophysically identified target zone as a feeder structure facilitating the flow of mineral-rich fluids into limestone host sequences.
Mammoth holds option agreements to earn up to 80% of the Excelsior Springs Project, which covers 135km2 in Nevada’s Walker Lane trend. The company is required to complete US$5 million ($7 million) of expenditure within five years to earn its 80% interest.
Mammoth Minerals is an Australian explorer advancing a portfolio of gold and copper assets across the Americas.
Write to JC Villarba at Mining.com.au
Images: Mammoth Minerals
