Igneous rocks with an andesitic composition _______.
A) are denser than basaltic compositional rocks
B) are found primarily in continental interiors
C) make up most of the sea floor
D) are denser than granitic compositional rocks

Question

Quizplus · Accepted Answer

Andesitic rocks are denser than granitic rocks because they have a higher content of silica than basaltic rocks but less than granitic rocks, leading to intermediate density.

Igneous Rocks with an Andesitic Composition _______