Volcanoesssss Flashcards
1
Q
Molten rock beneath earth’s surface
A
Magma
2
Q
Mouth of the volcano
A
Crater
3
Q
Classifications of volcanoes
A
- composition of the erupting magma
- type of erupted products
- activity
4
Q
Opening where materials escape
A
Vent
5
Q
Conduit
A
Passage way of magma
6
Q
What is a volcano
A
Is a vent or chimney that connects molten rocks(magma) from within the earth’s crust to the earth’s surface
7
Q
Fissure volcano
A
Very liquid lava
- flows widespread
- erupted from fracture (crack in the ground)
8
Q
Very large composite volcano
Collapsed after an eruption
A
Caldera
9
Q
VOLCANIC DOME
A
Very viscous lava
- very explosive
- erupts large debris
10
Q
Scoria cone
A
Cinder cone
11
Q
Scoria cone
A
Cinder cone
12
Q
Lava is viscous, does not flow very far from the vent- steep-sided
A
Composite volcano
13
Q
Strato volcano
A
Many layers, composite volcano
14
Q
Cinder cone
A
Explosive lava
- small debris erupted
- made out of tephra
15
Q
Shield
A
Runny lava
- gentle sided
- does not erupt violently
- broad gentle sloping
