The binary phase diagram.?

Answer 1

TWO COMPONENT OR BINARY SYSTEMS


On a two component or binary diagram, three variables can be represented. These are generally pressure (P), temperature (T) and compositional changes (X) on a two dimensional diagram.



To graphically represent a Binary diagram one variable must be kept constant, which is usually P, and the phase diagram is plotted as a T-X diagram for a specific Pressure.



At constant P there are 8 possible types of Binary Diagrams which are of interest to petrologist.





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