| Term | Definition |
|---|
| Alfred Wegener | the first person to propose the theory explaining that the continents move |
| human distribution | one thing the theory of plate tectonics is NOT supported by |
| carbon dating, paleomagnetism, distribution of marsupials, glacial moraines | Evidence that supports theory of plate tectonics |
| divergent | plate boundary that's located in the middle of the atlantic ocean |
| North West | direction that the chain of Hawaiian Islands gets older |
| marsupial fossils | Evidence that does NOT support theory of continental drift |
| fossils, mesosaurus and marsupial distribution, continental jigsaw, physical land features | Evidence that supports theory of Continental Drift |
| thin, thick | sediment is - near the ridge and - farther from the ridge |
| rift | A - is created when a divergent plate moves away and new material comes in |
| subduction | when an oceanic plate is pulled under a continental plate at a convergent boundary |
| 250 million years | how long ago all the continents were connected |
| there wasn't a known force that could move the continents | the scientific community didn't accept the continental drift theory because |
| atlantic mid-ocean ridge | the longest continuous mountain range on earth |
| divergent boundary | what created the atlantic mid-ocean ridge created |
| the oceanic plates are being subducted underneath the continental plates | although the atlantic ocean basin is growing wider every year the earth is not getting any larger because |
| paleomagnetism, carbon and radiometric dating | evidence that supports the theory of sea floor spreading |
| mountains, rifts | physical features created at a convergent boundary |
| rifts, volcanoes | physical features created at a divergent on land boundary |
| mid-ocean ridges, seamounts | physical features created at a divergent underwater boundary |
| mountains | physical land feature seen near subduction zones |
| EQs, volcanoes | type of geologic activity seen around plate boundaries |
| Pacific Ocean | majority of the world's subduction zones located here |
| plate tectonics | current theory explaining continental drift |
| divergent, convergent, transform, collisional | the three types of boundaries found at plate edges |
| oceanic subducted under continental | at a convergent boundary when a oceanic and continental plate collide, which is subducted under the other? |
| 180 million years | the age scientists think the atlantic ocean basin is |
| transform | type of boundary of san andreas fault |
| 2-5 | the atlantic ocean is spreading - cm a year |
| transform | faults where most earthquakes occur |
| seamounts | undersea volcanoes |
| farther | the - the hawaiian chain of volcanoes are from Hawaii the older they are |
| pacific plate around hawaii | where most hot spots are located |
| harry hess | first explained sea floor spreading |
| guyots | flat-topped mountains found underwater |
| convection pushes, gravity pulls | driving mechanisms moving tectonic plates |
| hot spots, life | things scientists have observed along deep ocean plate boundaries |
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