Substrata

Substrata, plural of substratum, may refer to:

Earth's substrata, the geologic layering of the Earth
Hypokeimenon, sometimes translated as substratum, a concept in metaphysics
Substrata (album), a 1997 ambient music album by Biosphere
Substrata 2, a 2001 double album by Biosphere, including a remaster of the 1997 album
Substrata (gardening), another term for subsoil
Substrata (geology), layers of rock or sediment
Substrata (linguistics), languages which influence another through linguistic contact

See also