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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Rahul kumar Best Answer
(a)-->(i) Look at the attached figure. Melt composition Z (in attached figure) will produce rock in figure A and melt composition X will produce rock in figure B. I have discussed the crystallization sequence in your previous question. (ii) Rock in figure A indicates the final crystallization at eutectic point Y. (b)-->(i) Variance at point X will be 0 (ii) Petrological name of point C is peritectic point (The point on a phase diagram where a reaction takes place between a previously precipitated phase and the liquid).