Geology Final Exam Questions And Answers

Geology Final Exam Questions And Answers
3 major zones of the deep ocean
Continental margins
Deep ocean basins
Oceanic ridges


Continental margins
Seperates thick Continental crust from thin oceanic crust


Passive margin
Shelf, slope, rise


Shelf resembles
The shore


The slope resembles the
Sandbar


Rise is the
Flat floor


At the rise there is a
Build up of sediments


Active margins in continental margins have what types of plates
Convergent and transform boundaries


Active margins in continental margins are found in the
Pacific Ocean


Passive margins in continental margins are found in the
Atlantic Ocean


Accretionary wedges are found at
Active margins


Accretionary wedge
When sediments accumulate in the trench


Accretionary wedges have what kind of pressure and temperature
High pressure and high temp


Mid oceanic ridges are formed by what boundary

, Divergent


Mid ocean ridges are _____% of earth
20%


Mid ocean ridges are found in
The Atlantic Ocean


Sea floor spreading occurs at
Mid ocean ridges


Deep ocean basins are ___% of earth
30%


Trenches are found in
Deep ocean basins


Trenches are the
Deepest features on earth


Are Abyssal plains flat or bumpy
Flat


Abyssal plains are the most __________
Unexplored


Are abyssal plains thick or thin
Thick with a lot of sediments


Seamounts
Ocean volcanoes


Are there more volcanoes in the ocean or the land?
Ocean


Seamounts (ocean volcanoes) form in
Chains


Seamounts are found in the
Pacific


Turbidity currents are
Underwater landslides