Volcanoes

Question 1

Study of the relief features of the Earth’s crust

Answer 1

Geomorphology

Question 2

• diastrophism
• Erosion
• Volcanism

Answer 2

3 forces that alter Earth’s surface

Question 3

Roman God of fire

Answer 3

Volcano

Question 4

extrusive volcanism typically cone-shaped that passes magma from the mantle to the crust.

Answer 4

volcano

Question 5

75%(895) of volcanoes are found here.

Answer 5

Pacific Ring of fire

Question 6

most striking part of a volcano that is composed of lava and pyroclastics.

Answer 6

Cone

Question 7

Highes point or apex of a volcano

Answer 7

Summit

Question 8

Side of a Volcano

Answer 8

Flank

Question 9

Opening of the volcano where magma flows through

Answer 9

Vent

Question 10

Basin-like depression over a vent

Answer 10

Crater

Question 11

entrance of a volcano

Answer 11

Throat

Question 12

Volcanic depression much larger than the original crater

Answer 12

Caldera

Question 13

Barrier or obstacles in volcano and are called the veins of the volcano

Answer 13

Dike

Question 14

intrusive sheets solidified lava flow that forces their way between and parallel to older layers of rock in the volcano

Answer 14

Sills

Question 15

Pipe conveying magma

Answer 15

Conduit

Question 16

Molten rock under the earth’s surface that collects 1 to 10 km bellow the surface

Answer 16

Magma

Question 17

Fragmented material that consists of pumice, scoria, lithic materials or cryslals that are airborne and are dangerous to be inhaled

Answer 17

Tephra

Question 18

deadly flow contains fast-moving volcanic matter which contains pumice, ash, and block flow, glowing and erupting clouds that causes avalanches.

Answer 18

Pyroclastic Flow

Question 19

Rocks thrown out of a volcano that is at least 66 mm in size which becomes extrusive rocks

Answer 19

Volcanic bomb

Question 20

Cloud of heated ash and tephra released into the clouds which produces highly charged particles in the air.

Answer 20

Eruption Column

Question 21

Ash emitting from a volcano which can extend up to 12 miles above the vent

Answer 21

Ash cloud

Question 22

thousands of kilometer in distance from the volcano

Answer 22

Ash rain

Question 23

mixture of sulfur dioxide and nitrogen oxide which are emitted from the volcano that mixes with water.

Answer 23

Acid Rain

Question 24

Violent mudflow which consist of slurry pyroclastics mixed with rocky debris and water.

Answer 24

Lahar

Question 25

Openings stemming down to the magma chamber

Answer 25

cracks

Question 26

An Earthquake in which magma rises to the vents

Answer 26

Volcanic Earthquakes

Question 27

Caused by the magma's pressure. and if insufficient, the magma will cool down over time and form hard rocks.

Answer 27

Volcanic Eruption

Question 28

Plates Drift one plate slips beneath the edge of the other

Answer 28

Formation by subduction

Question 29

Process with the use of hotspots. lithospheric extensions permit the passive rising of liquid material from shallow depths of waters

Answer 29

formation by distention

Question 30

Stage of the volcano where the eruptions are numerous and threatening.

Answer 30

young volcano / Active stage

Question 31

emission of acid gases and vapor which may cause hot springs to arise.

Answer 31

Fumarolic stage

Question 32

Last traces of volcanic heat disappears which may cause the volcano to reduce in size not erupted in 2,000 years

Answer 32

Inactive stage / Dormant

Question 33

When volcanoes are not expected to erupt any time soon Cut off from their lava supply

Answer 33

Extinct

Question 34

The liquid's thickness and stickiness and how they resistance to flow.

Answer 34

Viscosity

Question 35

This is what effects the viscosity of lava, where the lower it is, the higher the viscosity, and if it's higher the lower its viscosity.

Answer 35

Magma's temperature

Question 36

Magma with __________, the more viscous than those with low silica content

Answer 36

HIgh silica content

Question 37

The magma that contains ________ si relatively fluid and travels far before solidifying.

Answer 37

Low silica content

Question 38

these when dissolved tends to increase its ability to flow

Answer 38

The amount of Gases Contained in Magma

Question 39

Type of volcano with steep conical hill formed above a vent

Answer 39

Cinder Cones

Question 40

Also known as stratovolcanoes which are made of alternating layers of pyroclastic materials and solidified lava.

Answer 40

Composite volcaoes.

Question 41

clustered group of vents

Answer 41

Conduit system

Question 42

Bread, gently sloping landform built by many layers of solidified lava.

Answer 42

Shield Volcanoes.

Question 43

Rounded, steep-sided mound that is formed by small masses of lava.

Answer 43

volcanic domes

Question 44

Produces the largest eruptions

Answer 44

Supervolcanoes.

Question 45

Magma erupts in underwater fissures of earth

Answer 45

Submarine Volcanoes

Question 46

Eruption beneath the surface of a glacier of sheets which is them melted into a lake by the rising magma.

Answer 46

Subglacial Volcanoes

Question 47

gas-driven and propels magma and tephra

Answer 47

Explosive Eruptions

Question 48

Outpouring of lava

Answer 48

Effusive Eruptions

Question 49

A metatype Eruption which is caused by gas release under decompression

Answer 49

Magmatic Eruptions

Question 50

A metatypy of Eruption which arise thermal contractions from chiling becomes in contact with water

Answer 50

Phreatomagmatic Eruption

Question 51

A metatype of Eruption which cejections of entrained particles during steam eruption Steam-driven eruption which occurs when water is boiled into steam with magma causing high pressure and thus causing an explosion.

Answer 51

Phreatic Eruption

Question 52

Magmatic type of eruption which are the calmest of the eruptions Effusive emissions of highly fluid basalt lava with low gas content from vents or lines of vents at the summit or on the flank of a volcano.

Answer 52

Hawaiian Eruption

Question 53

Type of magmatic eruption that is driven by a bursting of gas bubbles within the magma.

Answer 53

Strombolian Eruption

Question 54

This is an explosive type of magmatic volcano, which is caused by trapped gas in a relatively viscous magma becomes sufficient to blow off the overlying crust of solidified lava causing an explosion. The materials ejected from the volcano came from older rocks instead of new magma.

Answer 54

Vulcanian Eruption\