Igneous Rocks and Volcanoes
Chapters 3 and 4
PODCASTS
Bowens Reaction Series http://www.youtube.com/watch?v=en6ihAM9fe8
Igneous 4: Igneous intrusions http://www.youtube.com/watch?v=rG2offMQ3as
LABS
Google Earth Assignment on Volcanoes
Bowen’s Reaction Series
Lab Exercise 5: Igneous Rocks
OBJECTIVES
1. Be familiar with the following volcanic eruptions or features as examples of different
kinds of volcanic activity:
Mount Saint Helens, Hawaiian Volcanoes, Crater Lake, Paricutin, Ship Rock
Vesuvious, Krakatoa, Mt. Pelee, Devil's Tower and Devil's Postpile
2. Distinguish among composite, shield volcanoes and cinder cones, explain their
difference as a function of the different kinds of magma which feed them
3. Know how the following form: pyroclastic flow, basalt flood, caldera, pillow basalt,
ash, aa, pahoehoe, lava tube, columnar jointing
4. Know the following terms describing igneous rock texture: fine-grained, coarsegrained, phenocryst, porphyritic, vesicles, glassy, pyroclastic
5. Know the rocks of your rock kit, and be able to describe their formation based upon
mineral content and texture.
6. Be able to explain Bowen's Reaction Series
7. Explain the role of plate tectonics in the formation of different igneous rocks and
features.
8. Be able to describe the various intrusive features: batholiths, laccolith, dikes, sills,
volcanic neck, pluton
9. Explain how the discovery of anorthosite provided evidence of the formation of the
Moon,