Bowen Reaction Series

[kingwinner]

 

I don't quite get this diagram.

 

1) All magma will eventually cool to below 800 degrees C, so why are there still olivine and proxene when the magma cooled? won't they all become quartz?

 

2) I don't get the realtionship between temperature and type of magma. Is it saying that when magma continue cooling, all mafic magma will become intermediate and then felsic magma, so no rocks are mafic?

 

Can someone explain? Thank you! :confused:

[UncleAl]

Shift your lazy butt,

 

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[kingwinner]

If I get what they are saying, I won't be asking questions here