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Alfred Wegener 1915
Proposed his hypothesis of continental drift based on the fit of continental outlines, fossil evidence, and geologic evidence
Sea floor spreading demonstrates that
The sea floor moves apart at the oceanic ridges and new ocean crust is added to the edges
Geomagnetic field
Magnetic field of the earth
Magnetometers
Detect and measure Earth’s magnetic field
Harry Hess 1960
Proposed the ocean floor was broken into large blocks that moved relative to one another
Frederick Vine and Drummond Matthews 1963
New sea floor is magnetized in the direction of the then current field
Note 
Flashcard (127)