1. SIERRA NEVADAAmy Hutto Carlos GuzmanLinh La Tracey Mach Nam Nguyen 2. Approximately 400 miles long and 50 miles wideOne of the most popular regions in the state of California…

Slide 1 Slide 2 Objectives Compare and contrast intrusive and extrusive igneous rocks. What are igneous rocks? Describe the composition of magma. Discuss the factors that…

Slide 1Volcanoes & Other Igneous Activity Chapter 10 200 Slide 2 How & Where Volcanoes Form What is a volcano? –1. opening in Earth’s crust through which molten…

Slide 1 Volcanoes Slide 2 A Volcano is an area in the earth’s crust where molten rock, gases, and ash erupt from. Volcano also refers to the landform that develops. Volcano…

Slide 1 Volcanoes! Slide 2 What is a Volcano? Volcano: a mountain that forms when layers of lava & volcanic ash erupt & build up. Active Volcanoes spew smoke, steam,…

Slide 1 What are Igneous Rocks? Chapter 5.1 Slide 2 Formation of Igneous Rock Magma – molten rock beneath the Earth’s surface. Lava – magma that flows out onto the…

Igneous Rocks Igneous Rocks The root word ignis comes with the latin word for “fire” Igneous rocks form from crystallization of magma (below Earth’s surface) or lava…

The Geology of Warner Valley Geology Introduction to Lassen and Warner Valley Webcourse Click through the presentation before the fieldtrip to Warner Valley. As you may know,…

Volcanoes! What is a Volcano? Volcano: a mountain that forms when layers of lava & volcanic ash erupt & build up. Active Volcanoes spew smoke, steam, ash, cinders,…