Rock Structures Mt. St. Helens, October 2004. Igneous Structures: Plutons, Volcanoes, & Lava Flows (Oh, My!)
VOLCANOES. What is a Volcano? A volcano is a weak spot in the crust where Magma, comes to the surface. Volcanic activity is a constructive force that.
Volcanic Eruptions 7.3 p.209-216 Inside a volcano.
Volcanic Landforms & Eruptions Section 5.2 & 5.3.
