Aphanitic, phaneritic, and porphyritic are textural terms that:a
refer to fine-grained, course-grained, and mixed-grained crystal sizes, respectively.
b. refer to formation by slow cooling, fast cooling, and mixed cooling rates, respectively.
c. are indicative of volcanic, plutonic, and mixed plutonic-volcanic origins, respectively.
d. refer to fine-grained, course-grained, and mixed-grained crystal sizes, respectively, AND
are indicative of volcanic, plutonic, and mixed plutonic-volcanic origins, respectively.
e. all of these.
E
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