Plate Tectonics

Question 1

surface contracted and wrinkled, the wringkles being the mountain ranges on the earth’s surface

Answer 1

contraction theory (James Dwight)

Question 2

compare the shrinking to grapes

Answer 2

contraction theory (James Dwight)

Question 2

there once existed a single large landmass or super continent which he called PANGAEA

Answer 2

continental drift theory (alfred wegener)

Question 3

single landmass or supercontinent

Answer 3

pangaea

Question 4

pan means?

Answer 4

all

Question 5

gaea means?

Answer 5

earth

Question 6

vast sea or superocean

Answer 6

panthalassa

Question 7

north america and eurasia (alexander du toit, south african geologist)

Answer 7

laurasia

Question 7

PANGAEA later breaks into two smaller pieces

Answer 7

gondwana and laurasia

Question 8

south america, africa, india, antartica, and austrailia (eduard sues)

Answer 8

gondwana

Question 9

predicts that the continents will reform into supercontinent.

Answer 9

christopher scotese

Question 9

7 continents

Answer 9

cretacious (65 million years ago)

Question 10

seafloors moves and not the continent

Answer 10

seafloor spreading theory (harry hess, american geologist)

Question 10

atlantic continued to open, with small connection remaining between north america and europe

Answer 10

jurassic 9145 years ago)

Question 11

called this supercontinent

Answer 11

“the last pangaea” but then the “nest pangaea”

Question 12

continental drift theory = seafloor spreading theory

Answer 12

theory of plate tectonics

Question 13

15 major tectonic plates

Answer 13

7 primary and 8 secondary

Question 14

world at that time was dominated by a single supercontinent and was surrounded by a global ocean

Answer 14

permian