⏰ when
When were magnetic stripes on the ocean floor first recognized as evidence for plate tectonics?
Quick Answer
They were recognized in the early 1960s, with key work published in 1963.
The Full Story
In 1963, Frederick Vine and Drummond Matthews used alternating magnetic stripes on the seafloor to explain seafloor spreading. The pattern recorded reversals in Earth’s magnetic field as lava cooled at mid-ocean ridges. Because the stripes were symmetrical on both sides of the ridge, they showed that new crust was being created and pushed outward. This was one of the strongest early confirmations of plate tectonics.
Key Facts
1.Key explanation published in 1963
2.Associated with Vine and Matthews
3.Showed symmetric magnetic reversal patterns
YouTube Angle
Suggested video title for this topic:
"The ocean-floor barcode that proved continents move"
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