Moho Resources (ASX:MOH) has released an Interim JORC 2012 Mineral Resource Estimate (MRE) of 264,000 t @ 2.5g/t Au for 21,600 ounces Au at 0.5g/t cut-off grade at the 100%-owned East Sampson Dam (ESD) project in Western Australia.
Managing Director, Shane Sadleir, said there is significant upside with mineralisation open to the north, south and at depth.
A 70.2% (13,800 ounces) of MRE in the Indicated category also provides scope to expedite mining at ESD, while 93% (19,000 oz) of MRE located within softer, near-surface zones.
“Completion of the interim JORC Mineral Resource Estimate marks a major milestone for Moho in advancing the East Sampson Dam prospect to potential gold production. Importantly there is significant potential to increase the resource estimate given mineralisation is open to the north, south and at depth.
With that in mind, we are aggressively accelerating drill programmes into H2 2021 while commencing a Scoping Study to progress mine development,” Mr Sadleir said.
East Sampson Dam lies within the northwest-trending Kanowna Greenstone Belt on the eastern flanks of the Kanowna/Scotia Dome.
This belt is one of several which make up the Boorara Domain of the Kalgoorlie Terrane. The greenstone belts of the Kalgoorlie Terrane are host to many world class nickel and gold deposits. The Kanowna Belle, Gordon Sirdar, Mulgarrie and Gindalbie gold mining camps are all within 30 km of East Sampson Dam.
The Silver Swan North tenure covers approximately 8km strike of Achaean greenstone stratigraphy. The stratigraphic sequence recognised in the area comprises a lowermost succession of tholeiitic basalts and felsic to intermediate volcaniclastic rocks known as the Gindalbie Formation.
These are overlain conformably by the Morelands Formation which consists of komatiitic ultramafic lavas and high magnesium basalts, with lesser units of intermediate intrusives and sediments. The overall orientation of the stratigraphic sequence is north-northwest, generally dipping to the east, however local changes are observed.
Structurally, the sequence is complex with numerous faults and shears of various orientations disrupting lithologies, as well as the added complication of early thrust faults which appear to repeat or duplicate the succession.
There are a number of Proterozoic gabbroic dykes that cross cut the stratigraphy. Gold appears to be associated with many of the lithological units in the area, including felsic intrusive rocks at Red Hill near Kanowna, in oligomictic conglomerates marginal to the acid complexes at Taurus and Kanowna and in fine-grained pyroclastic and clastic rocks in the Gindalbie area. The transitional zone between the Morelands and Gindalbie Formations is also a favourable region for gold mineralisation.