Volcanoes and Volcanism 8-2

Which of the following is term relating to the activity level of a volcano?

• active
• inert
• extinct
• dormant

Which of these volcanoes is located in the state of Washington?

• Mt. McKinley
• Mt. Shasta
• Mt.. St. Helens
• Mt.. Vesuvius

The VEI of a volcano's eruption is based on

• the amount of tephra produced
• the height of the eruption cloud
• a descriptive estimate of the explowion
• all of the above

Vertical is to dike as horizontal is to 

• lahar
• pluton
• sill
• strata

Batholiths and laccoliths are both types of

• dikes
• liths
• plutons
• stocks 

A hydrothermal circuit is best seen in

• the formation of a pluton
• the eruption of a geyser
• intrusive volcanism
• the formation of flood basalts

A spring the periodically ejects large quantities of hot water and steam is know as a

• fumarole
• geyser
• lahar
• mud pot

The depression found at the top of most volcanic cones is called

• dip
• crater
• calder
• pool

A __________ is a depositional mountain built up by molten rock that has rised to the earth's surface through a vent.

• basalt
• geothermal anomoly
• volcano
• fumarole

A __________________ is a vent in the ground through which hot gases escape.

• geyser
• fumarole
• hot springs
• basalt