Last updated: October 12, 2010
This study guide is ready for Exam 2
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In addition to the vocabulary and concepts below, you are also responsible for all material covered in lecture and all reading assignments listed on the syllabus.
Columbia River flood basalt
stratocone, or composite, volcano
Ring of Fire
pyroclastic material (bombs, cinders, ash)
surface tilt or surface bulge
drainage basin (watershed)
Identify volcanic sources and the type(s) of lava and volcanic landform(s) they generally produce.
sources: divergent plate boundaries,
subduction zones, hot spots
lava: basalt, andesite, rhyolite
What are some differences between rhyolite, andesite, and basalt? (color, %SiO2, volcanic source)
What is viscosity; what factors control the viscosity of magma; how does viscosity affect explosivity and type of volcanic landform?
Visually identify types of volcanic landforms: shield volcanoes, stratocone volcanoes, cinder cone volcanoes, calderas, volcanic domes
Visually identify types of volcanic hazards: pyroclastic flows, lahars
Visually identify types of volcanic sources: divergent plate boundaries, subduction zones, hot spots
Which type of eruptive material (lava and/or pyroclastic material) makes up which type of volcanic landform?
Which volcanic hazards are associated with which type of volcanic landform.
Which type of volcanic activity (magma type(s), eruptive material (ash/pyroclasts/lava), landforms, plate tectonics, and hazards) is associated with each of the following areas and/or volcanoes:
the Cascade volcanoes
the Ring of Fire
the Aleutian Islands
Soufriere Hills volcano, Montserrat
Long Valley Caldera (disregard plate tectonic boundary for LVC)
What are the causes of mudflows?
Approximately how far away from Mt. Rainier did the Osceola mudflow travel approximately 5,700 years ago? (Visit USGS Volcano Hazards Program)
How does volcanic activity affect climate?
How are volcanoes monitored and which volcanoes are currently being monitored (as mentioned in the text)?
What are the percentages of water in different reservoirs of the water cycle?
What affects the velocity of a stream?
How does velocity affect stream capacity and sediment sorting?
What causes streams to meander and in which direction do streams meander?
Which factors lead to increased run-off and flooding?
What is the difference between an upstream flood and a downstream flood?
How would flood hydrographs differ between an upstream flood and a downstream flood; between an urban area and a non-urban area?
How are flood recurrence intervals calculated? (i.e., what is meant by the 5-, 10-, or 100-year flood?)
Why do people live in floodplains and what are the effects of floodplain development on: flood stage height, flood lag time, flood recurrence?
What are strategies for reducing flood hazards and how does each work?