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Sasser S6E5e
Earth Science
Term | Definition |
---|---|
fault | the surface along which rocks break and slide past each other |
convergent boundary | when two tectonic plates collide |
divergent boundary | when two tectonic plates separate |
transform boundary | when two tectonic plates slide past each other horizontally |
compression | when two tectonic plates collide |
tension | is stress that occurs when forces act to stretch an object |
folding | bending of rock layers because of stress in the Earth's crust |
normal fault | when a normal fault moves, it causes the hanging wall to move down relative to the footwall. Normal faults usually occur when tectonic forces cause tension that pulls rocks apart. |
reverse fault | when it moves it causes the hanging wall to move up relative to the footwall |
strike slip fault | form when opposing forces cause rock to break and move horizontally. |
sea floor spreading | is the process by which new oceanic lithosphere forms as magma rises toward the surface solidifies. |
mid-ocean ridge | are mountain chains where that form where tectonic plates pull apart. |