Mod 1 Glossary

Question 1

cThe entire lithosphere of the Earth is broken into numerous segments called what?

Answer 1

Plates

Question 2

How are the plates moving?

Answer 2

Slowly but continuosly

Question 3

What are the three types of plate boundaries?

Answer 3

Divergent, Convergent, and Transform fault boundaries

Question 4

is formed when plates move apart, creating a zone of tension

Answer 4

Divergent boundary

Question 5

is present when two plates collide

Answer 5

Convergent boundary

Question 6

characterized by plates that are sliding past each other

Answer 6

Transform fault

Question 7

gives rise to several geological features and events

Answer 7

Plate tectonics

Question 8

mountains formed in part by igneous activity associated with subduction of oceanic lithosphere beneath a continent

Answer 8

Continental volcanic arc

Question 8

mountains formed in part by igneous activity associated with subduction of oceanic lithosphere beneath a continent

Answer 8

Continental volcanic arc

Question 9

a boundary in which two plates move toward each other, causing one of the slabs of the lithosphere of subduct beneath an overriding plate

Answer 9

Convergent boundary

Question 10

is the outer portion of the earth

Answer 10

Crust

Question 11

the thick part of the Earth’s crust, not located under the ocean

Answer 11

Continental crust

Question 12

the thin part of the Earth’s crust located under the oceans

Answer 12

Oceanic crust

Question 13

a region where the crustal plates are moving apart

Answer 13

Divergent boundary

Question 14

vibration of Earth due to rapid release of energy

Answer 14

Earthquake

Question 15

a break in a rock mass along which movement has occurred

Answer 15

Fault

Question 16

a break in a rock mass in which no significant movement has taken place

Answer 16

Fracture

Question 17

the science that studies Earth

Answer 17

Geology

Question 18

a concentration of heat in the mantle capable of creating magma

Answer 18

Hotspot

Question 19

a mass of molten rock formed at depth, including dissolved gases and crystals

Answer 19

Magma

Question 20

a continuous mass of land with long width and height on the ocean floor

Answer 20

Mid-ocean ridge

Question 21

rigid sections of the lithosphere that moves as a unit

Answer 21

Plates

Question 22

suggests that Earth’s crust is made up of plates that interact in various ways, thus producing earthquakes, mountains, volcanoes, and other geological features

Answer 22

Plate tectonics theory

Question 23

the first type of seismic waves to be recorded in a seismic station

Answer 23

Primary (P) waves

Question 24

a record made by a seismograph

Answer 24

Seismogram

Question 25

a device used to record earthquake waves

Answer 25

seismograph

Question 26

an event in which a slab of rock thrusts into the mantle

Answer 26

Subduction

Question 27

a boundary produced when two plates slide past each other

Answer 27

Transform fault boundary

Question 28

a depression in the seafloor produced by subduction process

Answer 28

Trench

Question 29

a chain of volcanoes that develop parallel to a trench

Answer 29

Volcanic island arc