Igneous and Metamorphic Rocks: Introduction

The video discusses the massive eruption of Lassen Peak in 1915, which spewed ash and gas high into the sky and affected areas up to 200 miles away. The aftermath left a landscape covered in volcanic ash, boulders, and lava flows. Today, hot springs indicate ongoing volcanic activity, suggesting potential future eruptions. The video also introduces igneous rocks formed by magma and lava, and metamorphic rocks created by heat and pressure.

What significant event occurred on May 22nd, 1915, at Lassen Peak?

Describe the impact of the Lassen Peak eruption on the surrounding landscape.

What evidence suggests that volcanic activity may occur again in the Lassen area?

What types of rocks are produced by magma and lava, and what are their characteristics?

Explain the role of heat and pressure in the formation of metamorphic rocks.