NSSS3.3

toc =3.3 Volcanic Landforms=

Vocabulary

 * Shield Volcano**: A wide, gently sloping mountain.
 * Cinder Cone**: A steep, cone-shaped hill or mountain.
 * Composite Volcano**: Tall, cone-shaped mountains in which layers of lava alternate with layers of ash.
 * Caldera**: A huge hole that forms after a volcano collapses inward.
 * Volcanic Neck**: When magma hardens in a volcano's pipe a volcano neck forms.
 * Dike**: When magma forces itself across many rock layers and then hardens it is called a dike
 * Sill**: When magma squeezes between layers of rock it forms a sill.
 * Batholith**: A mass of rock formed when a large body of magma cools inside the crust.

Landforms from Lava and Ash

 * Shield Volcanoes
 * Layers of lava pour out and harden
 * Eventually the lava builds a gently sloping mountains
 * Ex. Mauna Loa
 * Cinder Cone Volcanoes
 * When the lava is thick, it forms a cinder cone volcanoes
 * Ex. Paricutin
 * Composite volcanoes
 * Tall cone shaped mountains
 * Ex. Mt. Fuji and Mt. St. Helens
 * Lava Plateaus
 * After an eruption, sometimes the lava forms a plateau instead of a mountain
 * Ex. The Columbia Plateau
 * Calderas
 * After a volcano erupts and all the lava is gone, the volcano implodes and turns into a hole'
 * Ex. Crater Lake in Oregon