Plate Tectonics Haiku Deck
Published on Feb 11, 2016
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PRESENTATION OUTLINE
Continental Drift - the gradual movement of the continents across the earth's surface through geological time.
Photo by catface3
Pangaea - a hypothetical supercontinent that included all current land masses, believed to have been in existence before the continents broke apart during the Triassic and Jurassic Periods.
Photo by Tim Evanson
Plate Tectonics - a theory explaining the structure of the earth's crust and many associated phenomena as resulting from the interaction of rigid lithospheric plates that move slowly over the underlying mantle.
Photo by PeaElAre
Plate - landmass that floats on the mantle of the Earth.
Divergent Boundary - a linear feature that exists between two tectonic plates that are moving away from each other.
Convergent Boundary - is an actively deforming region where two (or more) tectonic plates or fragments of the lithosphere move toward one another and collide.
Transform Fault Boundary - a type of fault whose relative motion is predominantly horizontal in either sinistral or dextral direction.
Oceanic Ridge - an underwater mountain system formed by plate tectonics.
Rift Valley - a large elongated depression with steep walls formed by the downward displacement of a block of the earth's surface between nearly parallel faults or fault systems.
Seafloor Spreading - the formation of new areas of oceanic crust, which occurs through the upwelling of magma at midocean ridges and its subsequent outward movement on either side.
Subduction zone - the place where two lithospheric plates come together, one riding over the other.
Trench - form when one tectonic plate slides beneath another plate at a subduction zone.
Volcanic Island Arc - usually curved chain of volcanic islands bounded on the convex side by a deep oceanic trench.
Photo by NASA's Marshall Space Flight Center
Paleomagnetism - the branch of geophysics concerned with the magnetism in rocks that was induced by the earth's magnetic field at the time of their formation.
Hot Spot - a small area or region with a relatively hot temperature in comparison to its surroundings.
Photo by Stuck in Customs
Convection - heat transfer by mass motion of a fluid such as air or water when the heated fluid is caused to move away from the source of heat, carrying energy with it.
Slab-pull - the portion of motion of a tectonic plate that can be accounted for by its subduction.
Ridge-push - a proposed mechanism for plate motion in plate tectonics.
Asthenosphere - the highly viscous, mechanically weak and ductilely deforming region of the upper mantle of the Earth.
Photo by wockerjabby
Mantle - region of the interior of the Earth between the core (on its inner surface) and the crust (on its outer).
Photo by Argonne National Laboratory
