Chapter 15 Flashcards
1
Q
What kind of volcano is crater lake (Mt. mazama)?
A
caldera
2
Q
what is the deepest lake in the united states?
A
crater lake
3
Q
crater lake features two small islands:
A
wizard island, phantom ship
4
Q
cinder cone
A
wizard island, volcano made almost entirely of cinders (basalt chips)
5
Q
hazards at crater lake main categories:
A
- eruptions within the caldera due to a reawakening of the crater lake magma plumbing system
- eruptions from new vents on the flanks or in the surrounding
- sudden release of lethal CO2 from the lake
- catastrophic draining of the lake
- damaging earthquakes also are possible
6
Q
Vog
A
form of volcanic air pollution
7
Q
4 igneous rock types
A
basalt, rhyolite, andesite, pumice
8
Q
how did crater lake form?
A
when a violent eruption triggered the explosion and collapse of a tall volcano (mt mazama)
9
Q
what is crater lake fed by?
A
rain and snow
