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Volcano 🌋 Flashcards

1
Q

The study of volcanoes is called??

A

Volcanology

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2
Q

black smokers also know as?

A

Deep sea vents

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3
Q

Are place where two plates usually an oceanic plate and a continental plate collide

A

Convergent plate boundaries

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4
Q

is the name given to volcanic areas believed to be formed by mantle plumes which are hypothesis to be colums of hot material rising from the core mantle boundary in a fixed space that cause large volume melting

A

Hotspot

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5
Q

these ___ are picked up by volcanologist and the volcano is monitored

A

Warning sign

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6
Q

Instruments that measure ground deformation

A

Seismometers and seismograph

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7
Q

instruments that detect and measure volcanic gases

A

EMB, leveling,GPS,tilt

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8
Q

Instruments that determine how much lava si moving underground

A

VLF,EM-31

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9
Q

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

A

Intrusions

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10
Q

An ___ is an eruption of material that cools at the surface of volcano

A

Extrusion

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11
Q

The top part of Earth’s mantle called???

A

Asthenosphere

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12
Q

Volcanoes are constructed this way mainly of two materials??? ano ito?

A

Lava and ash

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13
Q

Some emit steam and searing hot noxious glasses some eject choking and blinding sunlight blocking ash white others expel liquid rock called??

A

Lava

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14
Q

Are notorious for lying dormant for hundred of years and then exploding suddenly and violently only to fall silent again for generation

A

Composite

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15
Q

Which can be thousand of meters high and a hundred kilometers wide steadily exude free flowing lava

A

Shield volcanoes

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16
Q

Molten rock beneath the Earth’s surface

A

Magma

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17
Q

A small come shaped volcano by an accumulation of volcanic debris

A

Parasitic cone

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18
Q

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

A

Sill

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19
Q

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

A

Vent

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20
Q

The side of a volcano

A

Flank

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21
Q

Molten rock that erupts from a volcano and solidifies as it cools

A

Lava

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22
Q

Mouth of a volcano it surround a volcanic vent

A

Crater

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23
Q

An underground passage magma travels through

A

Conduit

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24
Q

Highest point of a volcano;apex

A

Summit

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25
Q

Entrance of a volcano . That part of conduit that ejects lava and volcanic ash

A

Throat

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26
Q

Fragments of lava or rock smaller that 2mm in size that are blasted into their air by volcanic explossions

27
Q

A cloud of ash formed by volcanic explosions

28
Q

They are built up slowly by the accretion of thousands of highly lava flows called??

A

Basalt lava

29
Q

Are tall conical mountains composed of lava flows and other ejecta in alternate layers the starts that give rise to the name

A

Startovolcanoes

30
Q

Is superheated mixture of hot steam ash,rock,dust

A

Pyroclastic

31
Q

Are built by slow euraptions if highly viscous lava

A

Lava domes

32
Q

Are the simplest type of volcano

A

Cinder cones/volcanic cones

33
Q

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

A

Supervolcano

34
Q

Are common feature of the ocean floor

A

Submarine volcanoes

35
Q

Is a common eruptive products of submarine volcanoes and is characterized by thick sequences of discontinuous pillow shape masses

A

Pillow lava

36
Q

Is a subglacial volcanic landform formed when there are eruptions that cannot penetrate the ice sheet above

37
Q

Are Develop underneath ice caps

A

Subglacial

38
Q

Are collections of sometimes hundreds to thousand of separate vents and flows which are the results of very low supply rates of magma

A

Monogenetic

39
Q

Also called lava neck is a volcanic object created when magma harden within a vent on an active volcano

A

Volcanic plug

40
Q

Is a bowls shaped depression formed when volcano collapse info the void left when it’s magma chamber is emptied

41
Q

How many volcanoes in the Philippines???

A

399volcanoes

42
Q

How many active volcano in Philippines???

A

23 are still active

43
Q

The highest mountain in the country and overlooks Davao city

44
Q

What name of mountain that located in boundaries of Laguna and quezon province??

A

Banahaw volcanic complex

45
Q

What name of mountain located in sorsogon which formed about 35,000-40,00 years ago?

46
Q

Is the youngest stratovolcano of the group???

A

Banhao de lucban

47
Q

Are Lies in western flank of banahaw volcano

A

San Cristobal startovolcanoes

48
Q

What name of mountain that are located in southern Leyte???

49
Q

Also know as mountain of fire?

A

Mount cagua

50
Q

How many hot springs in mount cagua?

A

6hotnsprings

51
Q

How many crater in mount bulusan???

52
Q

Is a small volcanic island

A

Didicas volcano

53
Q

Also know as catarmab volcano is the youngest volcano and only historically active volcano in camiguij island

A

Hibok-hibok volcano

54
Q

Is a small stratovolcano that rises to 1196m immediately SW of lake buhi

A

Mount iriga

55
Q

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

A

Jolo group

56
Q

it also spello canlaon or canla-on the most active volcano of central oh forms highest point in the island of negros

A

Kanlaon volcano

57
Q

How many hot springs in kalaon Mt?

A

3 hot springs

58
Q

Is located east of head of Davao

A

Leonard kniaseff

59
Q

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

A

Malinao volcano

60
Q

Philippines most active volcano and is considered to be worlds most perfectly formed volcano for its symmetricsl cone

A

Mayon volcano

61
Q

What are name of volcano that is located in boundaries of Pampanga ,tarlac and zambales

A

Pinatubo volcano

62
Q

Is one of the most active volcanoes in the Philippines and has produced some of its most powerful historical eruption

A

Taal volcano

63
Q

What the names of the oldest volcanoes???

A

Cayonan,naydi,dionisio

64
Q

are smallest type of explosive explosion

A

Strombolian eruption

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