Geography, 25.09.2019 04:00 debramknoxx

Magmas can have a variety of chemical compositions for which of the following reasons? source rocks undergo varying degrees of partial melting, producing magmas of a different composition than the rock. all of the possible answers are correct. melts may come from different source rocks. two magmas may mix together to form a third of differing composition.

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Magmas can have a variety of chemical compositions for which of the following reasons? source rocks...

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