Definitions for "Striations"
lines etched in bedrock underlying glaciers as individual particles embedded in the glacier scratch the underlying bedrock. These lines indicate the orientation of glacial flow.
Scratches produced on an artifact from being used.
Parallel scratches in bedrock caused by rocks embedded in the base of a flowing glacier.
These markings are thought to be the advancement of a crack through a material. Unlike Beachmarks, Striations are thought to be the advancement of a crack due to one cycle of loading.
Marks evident on the molded-part surfaces that indicate melt flow directions or impingement.
The grinding marks left in a ground bevel by the individual grit in a grinding wheel. These marks typically begin at the cutting edge and follow a straight line perpendicular to the edge to the heel of the facet.
helical features on the surface of a silicon wafer associated with local variations in impurity concentration. Such variations are ascribed to periodic differences in dopant incorporation occurring at the rotating solid-liquid interface during crystal growth. Striations are visible to the unaided eye after preferential etching and appear to be continuous under 100X magnification.
Narrow, straight, or curved streaks that appear in extensive overcast cloud regions. A low sun angle creates the striation effect by differential shadowing of varying cloud levels.
Linear trace from processing or deeper indentations as a result of mechanical strain. The roughness of the striation is considerably greater than the required roughness.