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 volcanoes are on of the three types of volcanoes. Shield volcanoes have quiet eruptions and the lava â¦ is basaltic. Its slope is shallow compared to a composite volcano and a cinder-cone volcano. They are produced by hotspots and mid-ocean ridge.