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Lava
Volcano
World - Lava
View a slide show of different forms of lava with color photos
and descriptions of each type. Site also includes a list of references
and activities about lava.
Magma,
Lava, Lava Flows, etc.
Learn more background information about lava and the hazards associated
with lava flows.
Types
of Lava: Teacher Pages for Exploring the Environment - Volcanoes
In addition to a general overview, the description focuses on
how silica and water content varies in different types of lava.
Pyroclastic Flows
Pyroclastic
Flows and Pyroclastic Surges
Read about how pyroclastic flows and surges form, how those two
are different, and the hazards they pose to people.
Pyroclastic
Flows - Volcano Information Center
A similar type of overview of pyroclastic flows. However, site
also includes a discussion about how geologists discovered pyroclastic
flows as well as a list of journal and book references about pyroclastic
flows.
Lahar
Mudflows,
Debris Flows, and Lahars
Site gives a detailed introduction to lahars, describing what
initiates a lahar flow, what is the composition of a lahar flow,
and cites several historic examples of lahar flows associated
with volcanic eruptions.
Lahars
- Volcano Information Center
Read another good overview of lahars along with a list of journal
references to investigate further.
To learn more about how lava flows affect the
biosphere,
visit the following web sites:
USGS Hawaiian
Volcano Observatory
Useful information about Hawaiian volcanoes.
VolcanoWorld
NOAA
- VENTS Program
Information about black smokers and activity along mid-ocean ridges.
To learn more about how lava affects the cryosphere,
visit the following web sites:
Mt.
Rainier, Washington, USGS
Information on the eruptions of Mt. Rainier.
Cascade
Range Volcanoes Summary, USGS
Barbdarbunga/Grimsvotn
Volcanoes Iceland
Includes location data and reports on volcano activity.
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