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kozerog [31]
3 years ago
9

Explain how rocks on the seafloor record magnetic reversals over time.​

Biology
2 answers:
inessss [21]3 years ago
7 0
During a process called sea floor spreading the oceanic crust separates and spreads apart along a mid-ocean ridge.
NNADVOKAT [17]3 years ago
6 0
At sites of seafloor spreading along divergent plate boundaries, this crust is separated into parallel bands of rock by successive waves of emergent magma. When Earth's geomagnetic field undergoes a reversal, the change in polarity is recorded in the magma.

Source: https://kids.britannica.com/students/assembly/view/194471
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