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 Star of May recalls the declaration of independence on 14 May 1811. The colours were inspired by the French tricolour. Effective date: c. 1990. >>