Evidencefor

Plate Tectonics

Earth’s Interior

By compositioncore - Fe &

Nimantlecrust

lithosphere

asthenosphere

By stateinner core - solidouter core - liquidlower mantle - ductile

solidasthenosphere -

ductile solidlithosphere - rigid

solid

Plate TectonicsThe earth’s surface is made of

plates that move and interact.

plates are rigid lithospheremost activity is at the margins

of the platesthe plates are the surface

Fit of the Continents

Fit of the Continents

Fossil distribution

• Igneous & sedimentary rocks

• geologic structures

Glacial Deposits

Seafloor Spreading

Age of the seafloor(measured with riometric dating, paleomag, sed thickness)

Shape of the seafloor

Locations of Geologic Activity

earthquakes

volcanoes

Hot Spots

Measured Movement

Measured Movement

Causes of

Motionmantle

motionslab pullridge

push

History of plate

movement