Oceanography 100 Final Exam Questions
With Complete Solutions
How does heat affect density? Hot water expands
Which layer composes the plates? Lithosphere
In which tectonic setting(s) do trenches form? Convergent, ocean-ocean, ocean-cont.
What characteristic or process drives plate motions? Sea Floor Spreading
In what direction is the Pacific Plate moving relative to the North American plate? * North
West
At what rate does seafloor spreading occur? 2-5 cm per year
Which tectonic features form the deepest locations in the oceans? Trenches
How old is the oldest oceanic crust? 208 Ma
, Oceanography 100 Final Exam Questions
With Complete Solutions
In which type(s) of tectonic setting do volcanoes form? Divergent; Convergent
In which type(s) of tectonic setting do earthquakes occur? All
Where is the oldest oceanic crust? farthest from mid-ocean ridges
Based on current plate tectonic motion, how is the size of the Pacific changing? smaller
What type of plate boundary do we live on? transform
What type of plate boundary occurs north of Mendocino, CA? Transform
What type of continental margin do we live on? * Continental-Oceanic
What is lithogenous sediment? Land Sediment (rocks, pebbles)
With Complete Solutions
How does heat affect density? Hot water expands
Which layer composes the plates? Lithosphere
In which tectonic setting(s) do trenches form? Convergent, ocean-ocean, ocean-cont.
What characteristic or process drives plate motions? Sea Floor Spreading
In what direction is the Pacific Plate moving relative to the North American plate? * North
West
At what rate does seafloor spreading occur? 2-5 cm per year
Which tectonic features form the deepest locations in the oceans? Trenches
How old is the oldest oceanic crust? 208 Ma
, Oceanography 100 Final Exam Questions
With Complete Solutions
In which type(s) of tectonic setting do volcanoes form? Divergent; Convergent
In which type(s) of tectonic setting do earthquakes occur? All
Where is the oldest oceanic crust? farthest from mid-ocean ridges
Based on current plate tectonic motion, how is the size of the Pacific changing? smaller
What type of plate boundary do we live on? transform
What type of plate boundary occurs north of Mendocino, CA? Transform
What type of continental margin do we live on? * Continental-Oceanic
What is lithogenous sediment? Land Sediment (rocks, pebbles)
