How did a coarse-grained inclusion that erupted from a volcano form by internal processes?
A) The material was precipitated from groundwater.
B) Intense heat and pressure formed the metamorphic rock in the inclusion.
C) Cooling lava erupted from a volcano.
D) Coarser rocks form from the slow solidification of magma beneath Earth's surface.

Question

Quizplus · Accepted Answer

Coarse-grained inclusions that erupt from volcanoes are typically formed by the slow solidification of magma beneath Earth's surface. This slow cooling process allows larger crystals to form, resulting in a coarser texture compared to rocks that solidify quickly at the surface.

How Did a Coarse-Grained Inclusion That Erupted from a Volcano