Magmatic sulphides: why Cu, Ni & PGE get in!

There seems to be a lot of interest in magmatic sulphide deposits from readers, or should I rather say an interest to better understand these interesting deposits. My last post focused on the central role of sulphur in these magmatic systems, how the sulphide portion of the magma separates from the silicate portion and then how the sulphide melt deposits itself within the magma chamber. We also spoke about how Fe gets into the sulphide melt. But what about the important stuff, the nickel, copper and PGE?

ARM's nickel sulphide Nkomati mine in South Africa. It's Cu/Ni ratio ma suggest Bushveld lineage...

ARM’s nickel sulphide Nkomati mine in South Africa. It’s Cu/Ni ratio ma suggest Bushveld lineage…

Continue reading

Advertisements