Volcano Web
Introduction
A volcano is a location where magma, or hot melted
rock from within a planet, reaches the surface. It may happen violently, in a
massive supersonic explosion, or more quietly, as a sticky, slow lava flow.
Volcanoes have been a part of earth's history long before humans. Compare the
history of human beings, a few million years in the making, to that of the
Earth, over four billion years in the making.
Volcano Terminology
The study of volcanoes, or Volcanology,
includes many odd terms. How many of these do you know?
- Caldera
- vesicularity
- pahoehoe
- rheology
- lahar
Volcanic Places in the USA
Listed below are two places in the United
States that are considered "active" volcanic areas.
Mount St Helens
On May 18, 1980, after a long period of rest, this quiet
mountain in Washington provided detailed
observations on the mechanics of highly explosive eruptions.
Long Valley
This field seismometer measures earthquakes associated with
subsurface volcanic forces and may help to predict future events. It sits on a
plateau known as the "Volcanic Tableland" formed by a major corruption 600,000
years ago.
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Volcanic Places on Mars
Mars has its fair share of
volcanic landforms, including the largest known volcano in the solar system, Olympus Mons
Research Project
Your mission is to find information and report on a
volcano, other than the ones listed above, that has erupted in the last 100
years. Your reports must include:
- Type of volcano
- Geographic location
- Name, distance, and population of nearest major city
- Dates of most recent and most destructive eruptions.
- Other events associated with the recent eruptions (earthquakes, floods,
mudslides, etc)
Then, write a one page description on the major hazards to humans in the
vicinity of this volcano. Speculate on what you would do if you were in charge
of minimizing the risk to the population.
References
In this lesson you will use the internet
to research information on volcanoes and then write a report on your results.