Geology of the Pacific Northwest

Geology-208

Week 5:  IGNEOUS ROCKS

Igneous rocks have cooled from magma (molten rock). Their mineral composition and texture (shape and size of grains) give clues as to their rock identities. See chart.



RESOURCES

• Textures and Structures of Igneous Rocks (Nelson, Stephen A., November 7, 2000)

GLOSSARY


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Send comments to Rob Viens (e-mail: rviens@bcc.ctc.edu) or call him at his Bellevue Community College office at (425) 564-3158. Office hours are by appointment.

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