Low temperature Sulphide Formationxela1 stated (AS A FACT) that a temperature of at least 600 degrees is required to form sulphides. This is not so, sulphides can form at room temperatures this is a documented fact. A quick search of the internet gives lots of examples, here is a quote from one:
'However, there are many sulphide ores that have no obvious relationship to hydrothermal vents, such as sediment hosted deposits like the massive lead and zinc sulphide deposits of the Mississippi type. Moreover, most sulphate–reducing bacteria are intolerant of oxygen whereas sediment–hosted deposits often bear isotopic witness to the presence of oxygen. But, deposits of that kind often show intricate fine banding, suggesting slow deposition of fine–grained sulphides. Some light is thrown on the problem by a daring piece of research involving sampling from flooded caves in a flooded Pb–Zn mine in Wisconsin (Labrenz, M. et al. 2000. Formation of sphalerite (ZnS) deposits in natural biofilms of sulfate-reducing bacteria. Science, v. 290, p. 1744–1747). SCUBA divers recovered scum formed by bacterial filaments or biofilm, and analyses showed the clear association of the bacterial cells with nanometre–scale spheres of zinc sulphide. The species of sulphate–reducing bacteria involved is not exactly oxygen–loving, but will tolerate moderate levels dissolved in water. Here clearly is a means for the formation of low–temperature massive Pb–Zn sulphide deposits.'
https://www.earth-pages.com/~cgilib/page.asp?type=newsarchive&file=economic
This was published in Science (Labrenz, M. et al. 2000. Formation of sphalerite (ZnS) deposits in natural biofilms of sulfate-reducing bacteria. Science, v. 290, p. 1744–1747)
So, xela1, sulphides do form at these low temperatures and the conclusions that you draw from your mistaken belief (WHICH YOU STATE AS A FACT) that 'all of these mineral only form at high temperatures. Above 600 degrees C to be more specific.' are bs pure and simple. 'That is just due to physics and chemistry and is the way it is.' to quote you once more.
Spurious and misleading information stated as a fact and then demolished is of course our old favorite "The Strawman Fallacy". Yes we can easily 'acknowledge that it is very unlikely that the soils around Charcas have ever seen temperatures of 600 degrees C.' But then you lead us to 'So if the soils were never high enough in temperature to form those sulphides then the sulphides had to have formed somewhere else and been transported to the site.'. Well xela1, if sulphides only form above 600 degrees you would be correct. But since, with the aid of bacteria, they do (as a documented fact) your 'Strawman Fallacy' is revealed for what it is. Of course the flooded mine in which the SCUBA divers sampled could have been 600 degrees C (LOL)
Owl