What are thick, concordant igneous intrusions that push the layers of sediment above them into dome-like hills called?

Explanation

Laccoliths are large, lens-shaped intrusions of magma that force the overlying sedimentary layers upward, creating dome-shaped hills. Pegmatites are coarse-grained igneous rocks, dikes are discordant intrusions that cut across rock layers, and batholiths are massive, deep-seated intrusions that do not typically form domes.