| Title | Comment | Keywords |
|---|---|---|
| magnetic polarity reversal | n.a. / n.a. | "magnetic polarity reversal", "oceanic spreading ridge" | class="light"
| oceanic spreading ridge, ocean trench | n.a. / n.a. | "oceanic spreading ridge", "ocean trench" | class="light"
Coastal & Marine Geology InfoBank
USGS CMG InfoBank Geology School: oceanic spreading ridge |
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