Download Lecture 2: Plate Tectonics

Lecture 2: A Review of Plate Tectonics
Terminology
asthenospheric mantle, lithospheric mantle, lithosphere, Moho, tectonic plate, oceanic crust, continental
crust, continent, plate tectonics, plate boundary, divergent boundary, mid-ocean ridge, continental rift,
rift valley, rift volcano, rift range or rift mountain, island arc, subduction, magma, volcano, collision zone,
orogenic belt, volcanic arc, accretionary wedge, forearc basin, terrigenous/terrestrial sediment,
subduction trench, magmatic arc, mountain chain, transform boundary, left-lateral, right-lateral, passive
continental margin, active continental margin, continental shelf, ocean basin
Dates: none
Numbers:
-average thicknesses of inner core, outer core, mantle, oceanic crust, and continental crust
-depth to lithosphere/asthenosphere boundary
Review Questions:
Both lithospheric and asthenospheric mantle rocks are solid, but how do they behave differently?
The boundary between crust and mantle is defined by a change in rock type, how do we recognize the
boundary between the lithospheric and asthenospheric mantle?
Provide the name of a plate that carries only oceanic crust
What are the 6 different types of plate boundaries?
Provide an actual geographic example for each of these boundaries
What two plates laterally “transform relative to one another” along the west coast of California?
Explain how you can tell the difference between left-lateral and right-lateral motion.