Bowen's Reaction Series?

Question

What is the difference between the discontinuos and continous branch? What else is important to know about it?

Answer 1

http://www.windows.ucar.edu/tour/link=/earth/geology/ig_bowens.html&edu=high

I usually do not refer to wikipedia because it can be in accurate but this artical is an exception it is simple and to the point.
http://en.wikipedia.org/wiki/Bowen's_reaction_series