A lithospheric plate margin at which crust is neither created nor destroyed. Passive plate margins generally are marked by transform faults.
a coastline of a continent that is FAR from a plate boundary and therefore tectonically "passive"
Continental margin formed during initial rifting apart of continents to form an ocean; frequently has thick sedimentary deposits.
A tectonically inactive continental margin characterized by a lack of earthquakes and volcanic activity.
In plate tectonics, a passive margin is the normally gently sloping continental shelf area located on the trailing edge of a drifting continent. The passive margin is free of the seismic and volcanic activity associated with the subduction, rifting or transform faulting that is the result of plate tectonic activity.