Volcanism & Plutonic Landforms

Volcanism and Plutonic Landforms

Volcanism & Plutonism

Volcanism - igneous process above Earth’s surface
Plutonism - igneous process below Earth’s surface
strong correlation with plate boundaries
"ring of fire" completely circles Pacific Ocean

Convergent boundaries -
Divergent boundaries -
Transform faults -
Hot spots -

Flows & Eruptions

Basalt flows -
- two major types
- "flood basalts" -
Violent eruptions -
hurls massive amounts of ash & pyroclastics (small rocks)