Continental Drift

Question 1

Alfred Wegner is known for what

Answer 1

proposing the idea of continental drift

Question 2

what is the evidence of continental drift

Answer 2

continents fit like puzzle pieces
fossil distribution
climate belts
radiating glacial patterns
rock unit and landforms

Question 3

Henry Hess did what

Answer 3

proposed seafloor spreading

Question 4

what is the evidence of seafloor spreading

Answer 4

bathymetric mapping
paleomagnetism

Question 5

types of plate boundaries

Answer 5

divergent
convergent
transform

Question 6

what is the divergent boundary

Answer 6

when plates pull away
-mid ocean ridge

Question 7

what is the convergent boundary

Answer 7

when plates move towards each other

Question 8

ocean & continental convergence

Answer 8

a trench & a continental volcanic arm is created

Question 9

ocean & ocean convergence

Answer 9

a trench and an island volcanic arm is created

Question 10

continental & continental convergence

Answer 10

mountains are created

Question 11

what is a transform boundary

Answer 11

plates rub against one another

Question 12

what is a ridge

Answer 12

where plates pull apart

Question 13

active vs passive margins

Answer 13

active margins are actively moving
passive margins are inside of a plate, where plates are NOT colliding

Question 14

trench & collision zone

Answer 14

where plates come together

Question 15

faults

Answer 15

a crack that occurs when tectonics put pressure/stress on a rock

Question 16

types of faults

Answer 16

compression: convergent
tension: divergent
shear: transform

Question 17

elastic rebound

Answer 17

when energy is stored in a rock, it distorts the appearance

Question 18

ductile vs brittle elastic rebound

Answer 18

ductile: pressure is applied so it bends in the middle
brittle: pressure is applied and it breaks

Question 19

characteristics of an earthquake

Answer 19

shear fault
brittle elastic rebound

Question 20

epicenter

Answer 20

the land surface directly above the focus

Question 21

focus

Answer 21

the location where fault slip occurs

Question 22

faults

Answer 22

breaks in the crust

Question 23

earthquake waves

Answer 23

P waves, S waves, Surface waves

Question 24

P waves

Answer 24

body waves: moves through interior
fastest seismic wave
travels by compressing and expanding

Question 25

S waves

Answer 25

body waves: moves through interior
slower wave
moves through solids only
moving back & forth

Question 26

surface waves

Answer 26

slowest & most destructive
(L)ove waves: broken along the lines
(R)ayleight: rolling motion

Question 27

intensity vs magnitude

Answer 27

Intensity is based on the damage observed
magnitude is the power behind the fault