Striation
# Striation

Striations means a series of ridges, furrows or linear marks, and is used in several ways:

* Glacial striation
* Striation (fatigue), in material
* Striation (geology), a striation as a result of a geological fault
* Striation Valley, in Antarctica
* In hyperbolic geometry, a striation is a reflection across two parallel mirrors.
* In anatomy, striated muscle
* In acoustic phonetics, striations are vertical bands on a spectrogram associated with pulses of the vocal folds when producing voiced periodic sounds.
* Striations can be found in certain glasses. These have been caused by turbulent flow during teeming (pouring) of the glass.
* Striations can be observed in clouds. See Barber's pole.
* Ballistic fingerprinting
