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Plate Tectonics
study guide
Question | Answer |
---|---|
what type of boundary occurs at the continental-continental collision | convergent |
what geologic feature forms at a continental-continental collision | mountian |
going to the surface to the center of the earth, list the layers in order | lithosphere, asthenosphere, mesosphere, outer core, inner core |
tectonic plates are large pieces of lithosphere that float on top of the | asthenoshere |
who was Alfred wegener | German scientist who dicovered the continental drift |
tell me 2 ways the theory of continental drift was supported | age of rocks, magnetic reversal, found the same fossils |
t or f oceanic crust is younger at a ridge and older near the trench | true |
where do convection currents take place | asthenosphere |
what do scientist think move the tectonic plates | convection currents |
what two types of plate collision form mountain ranges | continental and oceanic |
why do you think fossils are sometimes found on the top of mountians | there was on ocean there |
how does the mid ocean ridge form | the divergent boundaries move apart and the lava shoots out |
what are Pangaea and panthalassa | land and ocean |
what do tectonic plates do at a divergent boundary | earthquakes |
what type of volcano is the worse | strato |