Igneous and Metamorphic processes

The earth is not finished, but is now being,
and will forevermore be re-made.

- C. R. Van Hise (1898)
Concepts:

Rocks

Igneous
Sedimentary
Metamorphic

Igneous
Compositional differences
continental crust
oceanic crust

Igneous environments of formation

volcanic
plutonic (magma chambers)

Basic igneous rocks based on composition and grainsize

rhyolite
granite
andesite
diorite
basalt
gabbro

Types of volcanoes

pyroclastic
composite
shield

Metamorphic

High Pressure High Temperature -- great depth, long history
Examples:
gneiss
slate
schist
marble

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