Which igneous rock will form through crystallization in a fluid-rich environment with enhanced ion migration?
A)Scoria
B)Pegmatite
C)Obsidian
D)Basalt

Question

Quizplus · Accepted Answer

Pegmatite is an igneous rock that forms in a fluid-rich environment with enhanced ion migration. This is because the fluids can provide more nutrients for crystal growth, and the enhanced ion migration can lead to larger crystals forming. Scoria and basalt are typically formed in more solidified environments with less fluid, and obsidian typically forms when lava rapidly cools without crystal formation.

Which Igneous Rock Will Form Through Crystallization in a Fluid-Rich