Lecture10 platetectonics
volcanoVCF.ppt
Sea Floor spreading
Land, Air, and Water Chapter 2, Section 2. Forces Inside the Earth About 90% of the world’s earthquakes and many of the world’s active volcanoes occur.
Warm-upWeek 14Day 1. Anatomy of a Volcano 1. Fissure (crack) in crust 2. Magma rises toward surface 3. Deposits igneous rock around VENT Volcano Mountain.
Take a look at last week’s homework (Page 181, 3 & 4) 3.What causes hot spot volcanoes to form? Magma from deep within the mantle rises and melts through.
