Form 2-20: Term 1

Pacific Ring of Fire

Hot spots

Basaltic magma (non violent)

Andesitic magma

Rhyolitic magma (sudden & violent)

Volcanic Features/Landforms

Shield Volcanoes

Mount Loa

Ash & Cinder Cone

Mojave National Preserve, California

Composite Volcanoes

Mount St. Helens

Lava Dome Volcanoes

Soufriere Volcano- Montserrat

Caldera

Newberry, Oregon

Tephra

Pyroclastic flows

Lahars

Lava Flow

Ash Fall

Volcanic bombs

Changes in Intrusive and Extrusive

Volcanic Features

Montserrat

Case Study

Before & After

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