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Earth Science > Types Of Volcanoes > Flashcards

Types Of Volcanoes Flashcards

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1
Q

•Quiet eruption
•less viscous
•slightly dome structure

Ex: Mauna Loa

A

Cone/Shield Volcano

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2
Q

•built from ejected lava fragments
•Hare steep slope and wide crater
•Rarely rise more than a thousand feet

A

Cinder Volcano

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3
Q

Accumulation of alternation solidification of both lava and volcanic rocks
Ex: Mayon Volcano

A

Composite Volcano

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4
Q

Relatively small circular mounds because the lava is simply too viscous to flow

A

Dome volcano

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5
Q

Periodic element composition of lava

A

•Oxygen
•silicone
•aluminium
•iron
•calcium
•sodium
•magnesium
•potassium

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6
Q

Resistance to flow

A

Viscosity

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7
Q

Get up in the air and highly viscous

A

Explosive volcano

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8
Q

Flows, less viscous, and more lava

A

Non explosive volcano

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9
Q

Three factors that affect erupting styles

A

Temperature
chemical composition
Amount of dissolved oxygen

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10
Q

High-temperature equals to

A

Low viscosity

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11
Q

Low temperature equals to

A

High viscosity

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12
Q

Relationship of temperature to viscosity?

A

Indirect reaction/relationship

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13
Q

High silica content is equals to

A

High viscosity

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14
Q

Low silica content is equals to

A

Low viscosity

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15
Q

Relationship of silica content to viscosity?

A

Direct reaction/relationship

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16
Q

Greater amount of dissolved gases is to

A

Lowley viscous

17
Q

Lesser amount of dissolved gases is to

A

Lower viscosity

18
Q

Relationship of amount of dissolved gases to viscosity?

A

Indirect reaction/relationship

19
Q

Lava flows that have a rough rubbing surface composed of broken lava blocks called ‘clinkers’

A

Aa

20
Q

Thin flexible lava as it cools down

A

Pahoehoe

21
Q

Molten lava covered in carap race of crystalline

A

Blocky

22
Q

Lava explosion that is from underwater

A

Pillow lava

23
Q

Mixtures of fragmented volcanic particles, hot gases, and ash

A

Pyroclastic density currents or PDC

24
Q

Form when ash and dust race down

A

Pyroclastic flows

25
Q

Fragmented volcanic particles

A

Tephra

26
Q

Most Violent eruption

A

Plinian

27
Q

Weakest eruption type

A

Strombollium

28
Q

Violent eruption

A

Phreatomagmatic

29
Q

Steam-diven and short-lived

A

Phreatic

Earth Science (4 decks)

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