A laccolith is a sheet intrusion (or concordant pluton) that has been injected between two layers of sedimentary rock. The pressure of the magma is high enough that the overlying strata are forced upward, giving the laccolith a dome or mushroom-like form with a generally planar base. Laccoliths tend to form at relatively shallow depths and are typ...
mass of igneous rock intruded between two sedimentary beds
• (n.) A mass of igneous rock intruded between sedimentary beds and resulting in a mammiform bulging of the overlying strata.
A body of igneous rocks with a flat bottom and domed top. It is parallel to the layers above and below it.
A concordant intrusive body that has domed up the overlying rocks.
in geology, any of a type of igneous intrusion that has split apart two strata, resulting in a domelike structure; the floor of the structure is ... [2 related articles]
A body of igneous rocks with a flat bottom and domed top. It is parallel to the layers above and below it.
A large concordant pluton that is shaped like a dome or a mushroom. Laccoliths tend to form at relatively shallow depths and are typically composed of granite. The country rock above them often erodes away completely.
An igneous intrusion that has been forced between two layered rock units. The top of the intrusion i
A concordant igneous intrusion that has arched up the strata into which it was injected, so that it forms a pod-shaped or lensshaped body with a generally horizontal floor.
A laccolith (or laccolite) is a dome of igneous rock between two layers of older sedimentary rock. They are formed by the intrusion of magma, which forces the overlying strata into a dome.
A blister of magma that forces the overlying rocks into a dome.
A sill-like igneous intrusion that forces apart two strata and forms a round, lens-shaped body many times wider than it is thick.
Intruded mass of igneous rock that forces apart two strata and forms a round lens-shaped mass many times wider than thick. The overlying layers are often pushed upward to form a dome. A classic development of laccoliths is illustrated in the Henry, La Sal, and Abajo mountains of southeastern Utah...
A concordant igneous intrusion with a flat floor and a convex upper surface, usually less than 8 km across and from a few meters to a few hundred meters thick at its thickest point.