laccolith

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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, found on the Colorado Plateau.

The colours of the flag date from Napoleon's invasion in 1796. The design is based on the French tricolour. Effective date: 19 June 1946. >>