Chart, page-237

Your question:
""""Unfortunately i did not ask him the significance of one prospect with copper gold surface occurrences" (i.e. Part A my reference) " and "the other with silica-magnitite-haematite rocks around it...perhaps someone here can explain the significance of it to me." (Part B)

Part A:
https://www.sciencedirect.com/science/article/pii/S0169136802000847

Part B
https://en.wikipedia.org/wiki/Iron_oxide_copper_gold_ore_deposits

http://www.ga.gov.au/data-pubs/data-and-publications-search/publications/critical-commodities-for-a-high-tech-world/iron-oxide-copper-gold

Ok, I think I realise your question. The above may give you your answer in the sense whether one is a form of Part A deposit (which is more simpler system) than a Part B deposit formation which is a more complex system.

I guess it boils down to what the drill bit suggests is there. Not clear what system is there based on your statement, so just providing the above links to provide examples of possibilities given your sentences.

Have done no research so just commenting only on that statement if it helps.

All IMO