Why are plutonic rocks often called massive?
A) They often accumulate as successive layers, appearing banded.
B) They are covered by the ocean.
C) They are very large.
D) They rarely accumulate as successive layers and as result look very different from sedimentary rocks.

Question

Quizplus · Accepted Answer

Plutonic rocks, which form deep within the Earth's crust from the slow cooling of magma, are often called massive because they do not form in layers and thus have a uniform, solid appearance, contrasting with the layered appearance of sedimentary rocks.

Why Are Plutonic Rocks Often Called Massive