Somehow I am confused with this,e.g,medium - high grade metamorphism of siliceous dolostone: diopside or dorsterite:
1 tremolite + 3 calcite + 2quartz = 5diopside + 1H2O + 3 CO2
1 tremolite + 11 dolomite = 8forsterite + 13 calcite + H2O + 9CO2
why do 4 mineral assemblages can be produced ?
Is there any website or books that teach how to determine the metamorphic processes/reaction by interpretating ACF diagram? Is that ACF may represents different things in ACF diagrams for different facies/zones ?
Glacious