|
If the blocks moved at a constant rate for the past 50 million years, calculated the rate of offset (in km/million years).
|
19 km/million years
|
|
21.5 km/million years
|
|
|
|
25 km/million years
|
|
What is the number of years between the formation of the volcanic centers on Molokai and Oahu?
|
|
2.75 Ma
|
|
520,000 years
|
|
|
|
510,000 years
|
|
|
What was the average rate of plate movement between the formation of the volcanic centers on Maui and Molokai? (in mm/yr)
|
|
264.7 mm/yr
|
|
|
|
68.85 mm/yr
|
|
2.6 x 10^-4 mm/yr
|
|
How far has the Meiji seamount moved from the hot spot?
|
|
|
|
Which of the following accurately describes the west coast of Africa?
|
It has a broad continental shelf and is close to an ocean trench.
|
|
|
|
It has a broad continental shelf and is far away from an ocean trench.
|
|
It has a narrow continental shelf and is far away from an ocean trench.
|
|
|
Does the plate on which the United States resides consist of continental lithosphere, oceanic lithosphere or both?
|
continental only
|
|
oceanic only
|
|
|
|
Neither continental nor oceanic lithosphere
|
|
|
When considering magnetic anomalies and how they are preserved at spreading centers, are individual anomalies oriented parallel or oblique (perpendicular) to ridge crests?
|
oblique (perpendicular to)
|
|
parallel to
|
|
they are completely randomly oriented with respect to the ridge crest.
|
|
|
What is the average spreading rate of the East Pacific Rise (in km/million yrs)?
|
75 km/million yrs
|
|
37.5 km/million yrs
|
|
1.8 x 10^-5 km/million yrs
|
|
|
|
|
What is the approximate angle of subduction of the Amchitka segment of the subduction zone?
|
|
45 degrees
|
|
5 degrees
|
|
30 degrees
|
|
What is the distance between the volcanic centers between Hawaii and Maui? (in kilometers)
|
|
