25 terms

who came up with the theory of plate tectonics?

alfred wegner. evidence of fossils puzzle pieces, and rocks
divergent boundary
when two plates move apart. sea floor is spreading. creates mid ocean ridge, rift valley
transform boundary
a plate boundary where two plates move past each other in opposite directions. earthquake activity
convergent boundary
a plate boundary where two plates move toward each other. ocean to ocean. deep sea trenches, subduction. ocean to continent, subduction. continent to continent, collision.
around which geologic features can you find volcano activity
sea floor crust
in the process of sea-floor spreading, new ocean floor forms along earth's mid-ocean ridges, slowly moves outward across ocean basins, and finally sinks back into the mantle beneath deep-ocean trenches. made of basalt
continental crust
The portion of the earth's crust that primarily contains granite, is less dense than oceanic crust, and is 20-50 km thick
what do hot spots create
a trail of volcanoes
what is the difference between passive and active
active-volcanoes are erupting
passive-dormant volcanoes, sediments
what are 3 types of folded mountains
what is the process of a water cap
there was originally a river, but it eroded
local cuesta
local hogbacks
new castle
local domed mountain
local fault block mountain
red bute
local stock
what is the difference between a joint and a fault
a joint doesn't move, a fault moves
what family of rock would be in a folded mountain
sedimentary because of the layers
name 3 ways tectonic plates can slide along the mantle
ridge push
slab pull
mantle convection
where do most mountains form
along a belt of a convergent boundary
what are 3 ways rocks respond to stress
sheer stress
can domed mountains be found in mountain chains
what family of rock would you see a platonic dome mountain
local latholith
la salle
local sill
triangle mountain
local dike
mount daily