Hi B

Whenever one alludes to a MMS model, a relatively local source of sulphur needs to be present. The presence of sulphide-bearing IF is certainly a potential source. Assimilation of it, may account for some high Au values found in the Ni/Cu/PGE ores. Sometimes one can identify a source, sometimes its only hypothetical. But step back and consider the ROF area a a whole. We also know that because of the presence of significant VMS deposits, and using the quite well accepted model for their formation from undersea "black smokers, etc", the entire area exhibits an unusually high level of sulphur-rich activity. One might speculate that MMS deposits will most probably be found within the close proximity of "vents" forming VMS and/or sulphide-rich IF. I don't know. We don't really have a very good grasp of the relative timing of the mineralizing events which we have only had a bare glimpse of so far. I leave that type of analysis to the Jim Mungall's of this world.

Best Regards

geoprof