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Volcanoes!
Black Peak• Location: Alaska Peninsula
• Hight: 3,386 feet
• Extinct
• Last eruption: unknown
• Major features: There is a caldera at the eastern edge, this caldera contains two small lakes.
• Type: stratovolcano
Carlisle • Location: Aleutians
• Hight: 5,315 feet
• Dormant
• Last eruption: November 16, 1987
• Major features: This volcano has yet to be studied for major features.
• Type: stratovolcano
Douglas • Location: Alaska Peninsula
• Hight: 7,021 feet
• Active
• Last eruption: Never
• Major features: The summit has a crater with a small lake. Douglas has an active fumarole on the north side of the crater.
• Type: stratovolcano
Gilbert • Location: Aleutians
• Hight: 2,684 feet
• Extinct
• Last eruption: Non eruptive activity on April 18, 1947
• Major features: The northern flank is steep and is heavily eroded.
• Type: possibly a stratovolcano
Wrangell • Location: Wrangell Volcanic Field
• Hight: 14,163 feet
• Dormant
• Last eruption: March 26, 1930
• Major features: There is a caldera at the summit.
• Type: shield volcano
Glossary • Vent: An opening in the earths surface
through which magma erupts or volcanic gases are emitted.
• Crater: A steep-sided, usually circular depression formed by either explosion or collapse at a volcanic vent.
• Fumarole: A small volcanic vent from which gases and vapors are emitted.
Glossary • Stratovolcano: A steep-sided volcano, usually
conical in shape, built of lava flows and fragmental deposits from explosive eruptions.
• Shield Volcano: A gently sloping volcano in the shape of a flattened dome and built almost exclusively of lava flows.
• Caldera: A large crater formed by collapse or subsidence of the ground surface following a great eruption.
Glossary
• Dormant: A volcano that hasn't erupted for a long time, but can still erupt.
• Active: A volcano that has either erupted recently or is about to.
• Extinct: A volcano that hasn't erupted in a really long time and will not erupt again.