Plate

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Plate Boundaries
Earth Structure
Tectonics
Models
Potpourii
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The type of boundary where plates are moving away
from each other
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What is divergent?
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When the plates in this type of boundary slide
past each other, earthquakes may result
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What are transform fault boundaries?
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A subduction zone may form at this type of plate
boundary
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What is convergent?
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The midocean ridge in the Atlantic is this type
of boundary
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What is divergent?
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When plates are running into each other, this
type of boundary forms
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What is convergent?
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The layer of the Earth composed mostly of iron
and nickel?
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What is the core?
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Made of solid rock that is hot enough to flow
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What is the asthenosphere?
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The boundary between the crustand the upper
mantle
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What is the Moho?
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The area in space that if affected by the Earths
magnetic field
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What is the magnetosphere?
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The crust, Moho and upper mantle
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What is the lithosphere?
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He first developed the theory of continental drift
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Who was Wegener?
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Large sections of the Earths crust that are
moving along the surface
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What are tectonic plates?
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Making new rock at midocean ridges causes this
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Who is seafloor spreading?
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The thick, molten rock layer that the plates are
floating on
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What is the asthenosphere?
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The heating process that drives plate tectonics
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What is convection?
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The egg shell represented this
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What is the crust?
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When the chocolate on the Snickers piled up, it
respresented this process
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What is mountain building?
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The egg yolk represented this
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What is the outer core?
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The caramel and nougat of the Snickers
represented this
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What is the asthenosphere?
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The skin on the inside of the egg shell would
represent this
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What is the Moho
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Large landmass formed when all of the continents
were together
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What is Pangea?
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One evidence for tectonics was that these two
continents appeared to fit together
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What are Africa and South America?
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Two types of crust
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What is oceanic and continental?
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Formed when a divergent boundary occurs under
continental crust
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What is a rift valley?
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The geological era when Pangea started to break up
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What is the Mezozoic?