Hotspots, Plumes and Mass Extinctions. Is Hawaii more than a great vacation spot? How does life respond to geologic catastrophes?. Plate Tectonics - Distribution of Volcanic and Earthquake Activity. The Earth’s surface is broken into plates. 1. Wilson Cycle (ocean basin fm). 2. Examples:
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Is Hawaii more than a great vacation spot?
How does life respond to geologic catastrophes?
Columbia River Basin Flood Basalts with source at Yellowstone
Flood basalts, India
What causes the warmer material to rise?
Mt. St. Helens
Marine sedimentary layers exposed in Italy