The Prairie Deposit has been the focus of most of the historic work to date and has a JORC 2004 resource of 3Mt @ 5.0% Zn, 1.6% Pb, 15g/t Ag with some 75% of the resource in the indicated category. A significant amount of feasibility standard work has been completed by PDM which potentially could be utilised in any subsequent mining assessment.
Since beginning the Farm-in Joint-Venture, Marindi Metals has re-logged the diamond drill core and drill chips from percussion drilling. This work has proved to be challenging because of the poor state of the core, the standard of percussion chip logging and the unreliable data base. However it is critical to the geological understanding and this work will be finalised by midyear. The geological interpretation is evolving but it is now thought that gentle southeast plunging zones within the broader Prairie mineralisation hold the potential to host high-grade mineralisation +10% Zn + Pb zones. Leapfrog modelling of the mineralisation supports this conclusion, see below.
Leapfrog showing gentle south east plunge to higher grade zinc mineralisation.
The presence of the higher grade shoots and the coherent flat lying tabular zone of higher grade mineralisation will have implications for economics of the deposit – this remains to be fully addressed. The next step will be the completion of the logging and the synthesising of the data from the Wolf and Prairie deposits. The understanding of how these two separate mineralised centres relate to each other is very important given the geochemistry which suggests they are part of the same event.