INTRODUCTION TO VOLCANOES AND THEIR TYPES Flashcards

1
Q

Study to relief features of the Earth’s crust

A

Geomorphology

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2
Q

Refers to vertical and Horizontal movement of the crust

A

Diastrophism

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3
Q

Physical removal of the rock or wearing down of landmasses by geomorphic agent

A

Erosion

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4
Q

Processes associated with the surface discharge of magma or hot water

A

Vulcanism

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5
Q

Ground water beneath the shallow surface is heated up until is explodes into boiling water and steam

A

Geysers

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6
Q

Emit mixture of steam and other gases such as hydrogen sulfide

A

Fumaroles

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7
Q

Occurs in many geothermal areas where the surface of the earth intersects the water table

A

Hot springs

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8
Q

Typically cone-shaped hill or mountain formed by the extrusion of lava or ejection of rock fragments from a vent

A

Volcano

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9
Q

A belt of volcanoes that rings the pacific ocean

A

Circle of Fire

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10
Q

Most striking part of the volcano, usually composed of mixtures of lava and pyroclastic

A

Cone

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11
Q

Opening through which an eruption takes place

A

Vent

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12
Q

Large underground pool of liquid rock found beneath the earth’s crust

A

Magma chamber

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13
Q

Basin-like depression over a vent at the summit of the cone

A

Crater

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14
Q

Volcanic depression much larger than the original crater

A

Caldera

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15
Q

Rock or magma expelled from a volcano during eruption

A

Lava

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16
Q

Barrier or obstacles in a volcano

17
Q

Solidified lava flows that originally forced their way between and parallel to older layers of rocks

18
Q

Channel or pipe conveying liquid materials such as magma

19
Q

The side of the volcano

20
Q

Highest point or apex of volcano

21
Q

Entrance of the volcano

22
Q

Expelled from the atmosphere

23
Q

Chunks of lava blasted into the air which solidify before reaching the ground

A

Volcanic Bombs

24
Q

Fast moving currents of hot gases and rock travelling downhill from a volcano

A

Tephra Fall

25
Flowing mixture of volcanic debris and water
Lahar
26
Happens due to water and tectonic plates
Formation by subduction
27
Simplest type of volcano
Cinder cone
28
Made up of alternating layers of pyroclastic
Composite volcano
29
Built by many layers and has a wider vents
Shield vents
30
Aka: lava dome it is formed by small, bulging lavas
Volcanic domes
31
Produce largest eruptions on earth
Supervolcanoes
32
Erupts in the underwater fissures
Submarine volcanoes
33
Eruptions beneath the surface of a glacier
Subglacial volcanoes