Class# 6 Plate tectonics- General Theory Plate boundaries- 3 types Evidence to support the theory.
Evidence for Plate Tectonics
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Evidence for Plate Tectonics
description
Evidence for Plate Tectonics. By state inner core - solid outer core - liquid lower mantle - ductile solid asthenosphere - ductile solid lithosphere - rigid solid. Earth’s Interior. By composition core - Fe & Ni mantle crust. lithosphere. asthenosphere. Plate Tectonics. - PowerPoint PPT Presentation
Transcript of Evidence for Plate Tectonics
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
