Question

What does "plate margin" mean?

Answer 1

Plate margins are plates that form the lithosphere. Plate margins are things like oceanic ridges and mountains. Basically just a plate that makes up different types of land.

Answer 2

plate margin (plate boundary) The boundary of one of the plates that form the upper layer (the lithosphere) and together cover the surface of the Earth. Plate margins are characterized by a combination of tectonic and topographic features: oceanic ridges, Benioff zones, young fold mountains, and transform faults.