10 Questions
What is the main concept explained by Bowen's Reaction Series?
Crystallization order of minerals from a magma
How do magmatic deposits form?
From a cooling plutonic intrusion
Which minerals crystallize early in the magma chamber and form massive sulfide deposits?
Sulfide minerals
What is the characteristic of siderophile elements in terms of phase affinity?
Fractionate into metallic phase
What type of elements have a pronounced affinity for the sulphide phase?
Chalcophile elements
What are the relative abundances of selected metals in basalt, andesite, and rhyolite?
Ni, Co, Pt, Au in basalt; Cu, Zn, Cr, V in andesite
What is the main characteristic of disseminated ore minerals?
Scattered throughout the ore
Why are disseminated ore minerals considered valuable?
Because they are very valuable
Give an example of disseminated ore minerals found in the PCMZ of Uitkomst Complex.
BMS
Why are some disseminated minerals not mined even though they are present in the ore?
The tenor is too low for it to be economically viable
Learn about the formation of sulphide deposits in igneous rocks, particularly how Fe, Ni, and Cu separate from magma at lower temperatures and sink to the bottom of a chamber. Explore examples like the Nkomati deposit in the Uitkomst Complex.
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