Discuss any of the following:
– What is the difference between intrusive & extrusive igneous rocks?
– What is the Bowen reaction series?
– Describe the classification of igneous rocks in terms of: felsic, intermediate, mafic, & ultramafic.
– Explain the difference between aphanitic & phaneritic textures. Explain the difference between porphyritic & pegmatitic textures.
Please write good discussion post.