Which of the following statements apply to the asthenosphere,but not the lithosphere?
A)zone in the upper mantle that deforms by plastic flowage
B)cool,rigid layer of crust and upper mantle that forms the tectonic plates
C)deforms mainly by brittle fracturing and faulting
D)partial melting of rising granitic plumes produces huge volumes of basaltic magma

Question

Quizplus · Accepted Answer

The asthenosphere is a zone in the upper mantle that deforms by plastic flowage, while the lithosphere is a cool, rigid layer of crust and upper mantle that forms the tectonic plates and deforms mainly by brittle fracturing and faulting. Option B and C apply to the lithosphere. Option D refers to the process of melting of rising granitic plumes, but does not pertain to the asthenosphere or lithosphere specifically.

Which of the Following Statements Apply to the Asthenosphere,but Not