Yes, I realise it's not the bonanza we had optimistically hoped...

Yes, I realise it's not the bonanza we had optimistically hoped for, but the hole is mineralised to the extent, and continuous it would appear, of 165ms. That 165ms includes the 2 readings between 174.8ms and 192.5ms, so deduct 165ms from the 192.5 = possible start at 27.5ms depth and add 165 to 174.8 = possible end at 339.98ms. That tells me that the mineralisation of 165ms is somewhere between 27.5ms and 339.98ms.



Only disseminated sulphides have been hit, so nothing economical there.

This helps explain massive, semi-massive, stringer and disseminated taken from this paper

https://pubs.usgs.gov/of/1995/ofr-95-0831/CHAP16.pdf.

Nature of ore
Massive sulfide deposits, by definition, contain zones or lenses of massive sulfide minerals, many with sulfide mineral contents exceeding 90 volume percent. Most deposits also contain extensive zones of semi-massive sulfide rock (25 to 50 volume percent) that contain economically exploitable ore. Stringer zone ore zones typically contain 5 to 20 volume percent sulfide minerals, hosted in quartz veins and disseminated in chloritic wall rocks. Disseminated sulfide rock is extensively developed in footwall alteration zones; sulfide mineral abundances decrease with depth below the massive sulfide zone horizon. Lateral development of disseminated pyrite can be continuous for large distances at and immediately below the stratigraphic horizon of the massive sulfide lens.

I'm just trying to piece this together. I'm learning as I go, and posting helps me.