Marine magnetic anomalies can be used to estimate the rate of seafloor spreading rate of earth's expansion rate of seafloor subsidence age of the seafloor sediments

Marine magnetic anomalies can be used to estimate the rate of seafloor spreading. Seafloor spreading was supported by the evidence that marine magnetic anomalies provided. By matching the marine magnetic anomaly with the time-scale, you can determine how old the oceanic lithosphere in a certain point.

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