At a ridge, the half spreading rate of a flank is the rate at which the crust of that flank moves away from the ridge axis. The full spreading rate is the rate at which the two plates move apart, the sum of the two half rates; it is twice the half rate when the spreading is symmetric.
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Earth and Space Sciences · 术语表
什么是 Half and full spreading rates?
又称: half spreading rate · full spreading rate