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The magnetic north pole has remained very close to the geographic North Pole through all of geologic time.
Paleomagnetism confirms that, at particular times in the geologic past, Earth has had more than one magnetic north pole.
contours at around 2000 meters in depth.
All continents fit together with the least number of overlaps and gaps when the continents are matched along:
plants lived near the poles, but continents have drifted to current locations
Fossils of ancient polar plants are currently found near the equator because the:
evidence of constant ocean salinity.
All the following provide evidence for continental drift except:
pattern of alternating magnetic polarity of seafloor rocks.
Continental drift was confirmed through the study of the:
The magnetic pole wobbles, but stays near the geographic pole.
Which of the following statements best describes the relationship between Earth's geographic and magnetic poles?
the magnetic pattern on the seafloor.
Vine and Matthews determined that new ocean floor was being produced at ocean ridges by examining:
parallel to and symmetric about ocean ridges.
The seafloor magnetic pattern is be best described as:
The asthenosphere is composed of outer mantle material.
Which of the following statements is true of the asthenosphere?
The lithosphere is composed of the crust and the topmost portion of the outer mantle
Which of the following statements is true of the lithosphere?
increases in proportion to the distance.
Moving from oceanic ridge to oceanic trench, the thickness of the lithosphere:
crest of the mid-ocean ridge
Which of the following is associated with divergent plate boundaries on the seafloor?
volcanic island arcs
Which of the following is characteristic of oceanic-oceanic convergent plate boundaries?
Which of the following is characteristic of oceanic-continental convergent plate boundaries?
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