Volcanoes

Question 1

Intrusive Rock is

Answer 1

Plutonic Rock

Question 2

Magma Behavior determined by (3)

Answer 2

temp
composition
dissolved gases

Question 3

Liquid

Answer 3

Melt

Question 4

Solid in Lava are

Answer 4

Silicate

Question 5

Volatiles are (3)

Answer 5

water vapor, co2, so2

Question 6

Lava is

Answer 6

Extruded Magma

Question 7

Aa Flow (2)

Answer 7

Basalatic lava

rough jagged blocks

Question 8

Pahoehoe Flow (2)

Answer 8

basaltic lava

smooth surfaces

Question 9

Another name for Pyroclastic Flow

Answer 9

Nuee Ardente

Question 10

Nuee Ardente (3) generated by

Answer 10

collapse of eruption columns

Question 11

Crater

Answer 11

a funnel-shaped depression at the summit of most volcanic cones, generally less than 1 km in diameter

Question 12

Caldera

Answer 12

a volcanic crater that has a diameter of >1 kilometer and is produced by a collapse following a massive eruption

Question 13

Volatiles

Answer 13

1-6 percent of total, water/co2

Question 14

Bomb

Answer 14

hot lava greater than 2.5 inches, streamlined in air (meteor)

Question 15

Hot temperature

Answer 15

decreases viscosity

Question 16

Dissolved water

Answer 16

decreases viscosity by inhibiting formation of silica tetrahedra chains

Question 17

Violence of Eruption

Answer 17

Gases expand near surface due to decreasing pressure; related to how easily gases escape

Question 18

Silica Composition

Answer 18

Increases Viscosity

Question 19

Tetrahedra

Answer 19

silicate structures linking together in chains early in crystallization process

Question 20

Shield Volcanoes (3)

Answer 20

Large Area, Broad/dome shaped

Produced by MILD eruptions

Question 21

Cinder Cones or

Answer 21

Scoria Cones

Question 22

Composite Volcanoes or

Answer 22

Stratovolcanoes

Question 23

Cinder Cones (3)

Answer 23

Small size/groups
Extensive Lava Fields
Steep Slope

Question 24

Composite Volcanoes (3)

Answer 24

large/classic shape
symmetrical cone
layers of pyrcolastic debris

Question 25

Volcanic Neck

Answer 25

remains of magma solidified in conduit

Question 26

Volcanic Conduit

Answer 26

circular pathway from fissure to surface

Question 27

Bowen's Reaction Series

Answer 27

Minerals Crystallizes in systematic fashion based on melting points

Question 28

Crystal Setting

Answer 28

earlier, dense minerals settle towards bottom

Question 29

Magmatic Differentiations

Answer 29

one magma->two different magma

Question 30

Assimilation

Answer 30

magma melts and incorporates other

Question 31

Magma Mixing

Answer 31

Buoyant overtakes slow moving

Question 32

Partial Melting

Answer 32

melt enriched in ions from lowest melting temperture minerals

Question 33

Flow of Partial Melting

Answer 33

Ultramafic->Mafic->Intermediate->Felsic

Question 34

Resurgent Dome

Answer 34

Magma bounces back up in caldera

Question 35

Resurgent Dome Caldera

Answer 35

Yellowstone

Question 36

Flood Basalt

Answer 36

eruptions from fissues

Question 37

Large Igneous Province

Answer 37

Basalt Plateau

Question 38

Composite Volcano Flow

Answer 38

Andesitic

Question 39

Composite Volcano Location

Answer 39

Ring of Fire

Question 40

Shield Volcano Location

Answer 40

Ocean

Question 41

Shield Volcano Flow

Answer 41

Basaltic

Question 42

Pipe

Answer 42

super long conduit

Question 43

Divergent Plate Boundaries

Answer 43

Fluid/Basaltic Lava

Question 44

Intraplate Volcanism has

Answer 44

mantle pumes

Question 45

Superplumes are responsible for

Answer 45

flood basalts

Question 46

remoting sensing devices test

Answer 46

silicon dioxide emissions

Question 47

Igneous Rock goes to

Answer 47

Metamorphic Rock

Question 48

Igneous to Metamorphic

Answer 48

heat and pressure

Question 49

Sedimentary Rock goes to ___ via

Answer 49

Metamorphic via heat and pressure

Question 50

Parasitic Cone

Answer 50

Flank Vent emitting lava/pyroclastic material

Question 51

Fumaroles

Answer 51

flank vent emits gases

Question 52

Calderas

Answer 52

circular, steep-sided depressions with a diameter >1 km

Question 53

Crater Lake Calderas

Answer 53

Form from the collapse of the summit of a large composite volcano following an eruption; these calderas eventually fill with rainwater

Question 54

Hawaiian type calderas

Answer 54

: Form gradually from the collapse of the summit of a shield volcano following the subterranean drainage of the central magma chamber

Question 55

Yellowstone Calderas

Answer 55

Form from the collapse of a large area after the discharge of large volumes of silica-rich pumice and ash; these calderas tend to exhibit a complex history