Linked from
The 9 pages that link to Oceanic lithosphere, each with the reason it gives.
Oceanic crustNarrower topic: Crust is only the upper part of the moving oceanic plate.
Subduction zoneRelated: Its density and age help determine whether it sinks beneath another plate.
OphioliteNarrower topic: An ophiolite is a tectonically displaced fragment of this plate.
PeridotiteRelated: Its mantle portion consists largely of peridotite.
SeamountRelated: As lithosphere cools and subsides, a volcanic seamount can move deeper underwater.
Slab pullRelated: Its cooling history is what generates the density excess that makes slabs pull.
Macquarie IslandRelated: The island exposes fragments of this normally submerged outer layer.