Definitely company needs DHEM survey and interpretation of assay...

Definitely company needs DHEM survey and interpretation of assay results to find its direction, imo.
From SM post (re Wodger on 16 Jan 17), the one of possibly to be considered cases could be the folowing article from my interpretation:

Oxidised zones of ore deposits
The region above the water-table in an ore deposit is known as the oxidised zone as it is the zone of oxidation of the primary ore minerals. This oxidised zone is primarily composed of mixtures of iron oxides/hydroxides and quartz which we call gossan.
Most primary ore minerals (particularly the sulfide minerals) are only stable in anaerobic dry environments. With the rise and fall of the water-table and downward percolating rainwater (containing dissolved oxygen), these minerals dissolve and new minerals (oxide zone minerals) are precipitated in the gossan. With the dissolution of sulfide minerals, the water becomes acidic, further enhancing the dissolution of the ore.
Most of the spectacular minerals we see from ore deposits are those formed in the oxidised zone. When the oxidised zone is well developed and the secondary minerals sufficiently concentrated, it is a highly profitable zone to mine as the processing is much cheaper and easier and the metals more concentrated. However, most oxidised zones have been mined in the past because they formed outcrops of easily identifiable stained gossans. The most common minerals found in oxidised zones are:
Copper: malachite, azurite, chrysocolla
Gangue minerals: quartz (usually cryptocrystalline), baryte, calcite, aragonite
Iron: goethite, hematite
Lead: anglesite, cerussite
Manganese: pyrolusite, romanechite, rhodochrosite
Nickel: gaspeite, garnierite
Silver: native silver, chlorargyrite
Zinc: smithsonite

Immediately below the oxidised zone is sometimes a zone known as the supergene zone where metals are deposited by fluids percolating downwards from the oxidised zone and concentrating in a narrow band just below the water table. The supergene zone is the richest part of an ore deposit but in many instances, is either only very thin or not developed at all. The most common minerals found in supergene zones are:
Copper: chalcocite, bornite
Lead: supergene galena
Nickel: violarite
Silver: acanthite, native silver
Zinc: supergene sphalerite, wurtzite
https://australianmuseum.net.au/geological-ore-deposits



So far I did not take into account of encountered 'malachite and azrite', which mainly derived from weathering/oxidation.

Regards,