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chapter 08 Flashcards

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1
Q

the study of volcanoes called?

A

vulcanology

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2
Q

at the mid oceanic ridges two tectonic plates move away form one another as new oceanic crust is formed by the cooling and solidify of hot molten rock

A

Divergent plate boundaries

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3
Q

black smokers also know as???

A

deep sea vents

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4
Q

are places where two plates usually an oceanic plate and a continental plate collide?

A

subduction zone of convergent zone

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5
Q

is the name given to volcanic areas believed to be formed by mantle plumes

A

Hotspots

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6
Q

An __is an eruption of material that cools at the surface of a volcano

A

Extrusion

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7
Q

an__ is magma that cools beneath the surface of a volcano without erupting

A

Intrusions

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8
Q

The top part of the Earth’s mantle called?

A

Asthenosphere

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9
Q

The opening in the Earth’s crust where this occurs are called???

A

Volcanoes

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10
Q

Ate notorious for lying dormant for hundreds of years and then exploding suddenly and violently only fall silent again for generation

A

Composite

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11
Q

Person who study volcano?

A

Volcanologist

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12
Q

Molten rock beneath the Earth’s surface

A

Magma

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13
Q

A small come shaped volcano formed by an accumulation of volcanic debris

A

Parasitic cone

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14
Q

A flat piece of rock formed when magma gardens in a crack in a volcano

A

Sill

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15
Q

An opening in Earth’s surface through which volcanic materials escape

A

Vent

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16
Q

The side of volcano

A

Flank

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17
Q

Molten rock that erupts from volcano and solidifies as it cools

A

Lava

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18
Q

Mouth of a volcano;it surround a volcanic vent

A

Crater

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19
Q

An underground passage magmae travels through

A

Conduit

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20
Q

Highest point of a volcano;apex

A

Summit

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21
Q

Entrance of a volcano

A

Throat

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22
Q

Fragments of lava or rock smaller that2mm in size that are blasted into the air by volcanic explossions

A

Ash

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23
Q

A cloud of ash formed by volcanic explossions

A

Ash cloud

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24
Q

so named for their broad shield like profile are formed by eruption of low viscosity lava that can flow a great distance from a vent

A

Shield volcanoes

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25
Q

are tall conical mountains composed of lava flow and other ejecta alternate layers the starts that give rise to the name

A

Startovolcanoes or composite volcanoes

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26
Q

Is superheated mixture of hot steam ash rock and dust

A

Pyroclastic flow

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27
Q

Which typically range only few hundred meter in diameter and height occasionally belch forth boulders or dust called tephra

A

Cinder cones

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28
Q

Types of volcano

A

Supervolcano, startovolcano.shield volcano, submarine volcanoes, subglacial volcano

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29
Q

Usually has large caldera and can produce devastation on an anormous sometimes continental scale

A

Supervolcano

30
Q

Are common feature of the ocean floor

A

Submarine volcanoes

31
Q

A __is a subglacial volcanic landform formed when there are eruptions that cannot penetrate the ice sheet above, thus forming a flat-topped hill that conforms to the bottom of the ice (after some has melted away.

A

Tuya

32
Q

develop underneath ice caps

A

Subglacial volcanoes

33
Q

Is a volcanic object created when magma harden within a vent on an active volcano

A

Volcanic plug

34
Q

A__Is bowl shaped depression formed when a volcano collapse into the void left when its magka chamber is emptied

A

Caldera

35
Q

Philippines belongs to the?

A

Pacific ring of fire

36
Q

Is the highest mountain in the country and overlooks Davao city
province Davao del sur

A

Mount apo

37
Q

province boundaries of Laguna and quezon province

A

Banahaw volcanic complex

38
Q

What mt located in of province sorsogon which formed about 35,000-40,000

A

Bulusan

39
Q

what volcano located in southern Leyte

A

Cabalian

40
Q

also know as mountain of fire

A

Mount cagua

41
Q

what mt located in the Cagayan?

A

Didicas volcano

42
Q

Also know as catarmab volcano

A

Hibok hibok volcano

43
Q

is small startovolcanoes that rises to 1196m immediately SW of lake buhi

A

Mt iriga

44
Q

Is an active group of volcanoes in the island of Jolo in southern ph

A

Jolo group

45
Q

Highest point of the island of negros

A

Kanlaon volcano

46
Q

Is located east of head of Davao

A

Leonard kniaseff

47
Q

this volcano has no historical eruption but display strong fumarolic activity which is harnessed for a generating electricity

A

Malinao volcano

48
Q

is the pH most active volcano and is considered to be worlds most prefect formed volcano

A

Mayoj volcano

49
Q

this volcano is relatively unknown

A

Pinatubo volcano

50
Q

has Its most powerful historical eruption

A

Taal volcano

51
Q

Eruptions are the smallest type of explosive explosion

A

Strombolian eruption

52
Q

is a violent type of explosion

A

Vulcanian eruption

53
Q

The largest and most violent of all the type of volcanic eruption???

A

Plinian eruption

54
Q

Are a kind of hydromagmstic eruption where maga or lava interact explosively with water

A

Surtseyan eruption

55
Q

Form when very viscous rubbly lava

A

Lava domes

56
Q

Type of eruption are characterized by the effusion of molten basaltic lava that flow form long paralkel fissure

A

Icelandic eruption

57
Q

Who developed the volcanic explosivitu index?

A

Chris newhall and Stephen self

58
Q

during major explosive eruption huge amounts of volcanic gas aerosol droplets and ash are injected into the stratosphere

A

Volcanic gases

59
Q

are high-density mixtures of hot, dry rock fragments and hot gases that move away from the vent that erupted them at high speeds.

A

Pyroclastic flow

60
Q

Is an Indonesian term that describes a hot or cold mixture of water and rock flowing down the slopes of a volcano and or river valley

A

Lahar

61
Q

Are large masses of rock and soil that fall slide or flow very rapidly under the force of gravity

A

Landslide

62
Q

Are stream of molten rock that pour ooze from an erupting vent

A

Lava flows

63
Q

Is a glacial outburst flood

A

Jökuohlaup

64
Q

Is general term of fragments of volcanic rock and lava regardless of size that are blasted into the air by explosion or carried upward by hot gassed in eruption colums or lava fountains

A

Tephra

65
Q

Classification of tephra size

A

Ash-2m
lapili-2and64m
Blocks - 64m

66
Q

Is one of the service agencies of the department of science and technology

A

Philippines institute of volcanology and seismology

67
Q

Are research center that monitor volcanic activity

A

Volcanic ash advisory center

68
Q

each time new eruption producing a significant ash cloud is detected a??

A

Ash advisory

69
Q

Comes from a greek word geo meaning earth and theme meaning heat “renewable energy”

A

Geothermal energy

70
Q

the youngest know impact basinbon mercury

A

Coloris basin

71
Q

has more volcanoes that any other planet in the solar system

A

Venus

72
Q

Has the largest shield volcanoes in the solar system

A

Mars

Science Quiz (2 decks)

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