Buchanan, who is buried in Lancaster, has regularly been ranked one of the worst presidents by historians, citing his ambivalence towards the South wanting to secede from the Union prior to the Civil War.
A shield volcano is a type of volcano usually built almost entirely of fluid magma flows. They are named for their large size and low profile, resembling a warrior's shield lying on the ground. This is caused by the highly fluid lava they erupt, which travels farther than lava erupted from stratovolcanoes.
Shield Volcanoâ A type of volcano that is shaped like a flattened dome, resembling the look of a shield. This type of volcano has gentle sloping sides and is made from lava flows. Vent â An opening from which volcanic material is released. Volcanic Gasâ Gases that are released from the magma during an eruption.