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.
Shield volcano is a type of volcano found at the divergent boundaries. SPREADING CENTER VOLCANOES. The type of volcanoes that are caused by diverging plate boundaries are called as spreading center volcanoes.When the tectonic plates drift apart from each other, the magma contents buried underneath rises upwards and erupts out through the fissures and openings on the crust.he type of volcanoes that are caused by diverging plate boundaries are called as spreading center volcanoes. When the tectonic plates drift apart from each other, the magma contents buried underneath rises upwards and erupts out through the fissures and openings on the crust.