Magnetic field that points south

hypothesis that continents were one joined and then broke apart

Process by which new ocean lithosphere is formed.

Single landmass once formed by the continents

Undersea mountain range

Scientists used the pattern of alternating normal and reverse polarity in rocks to create the geomagnetic

What is the crack in the ocean floor through which magma rises?

How does sediment that is closer to a mid-ocean ridge compare to sediment that is farther away?

Magnetic patterns on the ocean floor were puzzling because they

Wegener's hypothesis of continental drift was finally confirmed by

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