The surface that separates a layer of stratified rock, such as shale, from an overlying or underlying layer.
The planar surface that exists between two beds of rock or layers of strata
The division plane that separates each successive layer of sedimentary or stratified rock.
A relatively flat surface that separates one layer of rock from another.
the dividing plane that separates each layer in a sedimentary or stratified rock from layers below and above it.
Surface marking the break between two distinct pulses (beds) of sediment deposition.
A horizontal fracture in the rock, especially in between rock layers A passage formed along such a fracture, usually low and wide
A surface parallel to the surface of deposition, which may or may not have a physical expression. The original attitude of a bedding plane should not be assumed to have been horizontal. See also CROSS-BEDDING.
A layer in a series of sedimentary beds that marks a change in the type of deposits.