Transcript
Density• Before talking about what causes mantle
convection we need to understand density…• What is density?• Defined in a quantitative
manner…
• Density defined in a qualitative manner as the measure of the relative "heaviness" of objects with a constant volume.
What is mantle convection?
• Mantle convection is the slow movement of Earth’s mantle caused by convection currents carrying heat from the interior of the Earth to the surface.
What does this look like?
• Video 1: Time 4:16
• http://hmxearthscience.com/Warehouse/geology/plate_tectonics/animations/convection2.swf