The majority of the Mizobe Project area is covered by post mineral–recent volcanic ash deposits. Sampling of sporadic altered outcrop and quartz-vein breccia float across a 2 by 2.5 km area in the eastern side of the project area confirmed the presence of strong gold and pathfinder element anomalies with channel samples including composited intervals up to 24.7 m grading 1.0 g/t gold, and river float samples up to 18.9 g/t gold. The extent of gold and antimony anomalism is highly encouraging considering much of the target area is concealed by a veneer of post-mineral volcanic ash.
Two phases of drilling has been completed at Mizobe. The drilling has confirmed the presence of broad zones of anomalous gold mineralisation and alteration beneath the post mineralisation. Significant intercepts include
- MZDD23-003 144.0 m @ 0.7 g/t Au & 2.1 g/t Ag from 47.0 m including 10.0 m @ 4.3 g/t Au & 6.6 g/t Ag
- MZDD23-004 33.55 m @ 0.6 g/t Au & 3.1 g/t Ag from 28.3 m including 12.0 m @ 1.0 g/t Au & 4.5 g/t Ag from 33.0 m
The better developed mineralisation is associated with pervasive clay-pyrite-marcasite, which are cross cut by carbonate-quartz-pyrite-marcasite-arsenopyrite breccia and veins and hydrothermal breccia and late stage quartz -carbonate veins. Evidence of colloform banded chalcedony clasts within the breccia.
The Au mineralisation is associated As, Sb, Se, Mo and Mn.
The style of mineralisation and geochemical zonation suggest that the mineralisation is the upper parts of an epithermal system highlighting potential for a higher grade feeder zone at depth.
The drilling completed to date is wide spaced, so the extent and the controls on the mineralisation are still to be defined. The results are highly encouraging as it confirms the potential of discovering new zones of mineralisation underneath the post mineralisation cover.
