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petrogenesis

n. The branch of petrology dealing with the origin of igneous rocks

Wikipedia
Petrogenesis

Petrogenesis, also known as petrogeny, is a branch of petrology dealing with the origin of igneous rocks. Petrology is the discipline of geology that studies rocks.

Category:Petrology

Usage examples of "petrogenesis".

It would be a good thing if I got just a bit of sleep and studied up on igneous petrogenesis at the same time.