Large crystals found in a fine-grained groundmass can indicate a(n)____.
A)origin from a magma with an early intrusive phase followed by an extrusive phase
B)origin from a magma with an early extrusive phase followed by an intrusive phase
C)rock of mixed volcanic-plutonic origin
D)intrusive slow cooling process
E)origin from a magma with an early intrusive cooling phase followed by an extrusive cooling phase

Question

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The Answer of Large crystals found in a fine-grained groundmass can indicate a(n)____.
A)origin from a magma with an early intrusive phase followed by an extrusive phase
B)origin from a magma with an early extrusive phase followed by an intrusive phase
C)rock of mixed volcanic-plutonic origin
D)intrusive slow cooling process
E)origin from a magma with an early intrusive cooling phase followed by an extrusive cooling phase

Large Crystals Found in a Fine-Grained Groundmass Can Indicate A(n)____