title: Striation
text: # 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
  