Longitudinal Foliation
Longitudinal surface structures
Longitudinal surface structures (may be called longitudinal foliation or flow stripes) are common on glaciers and have a planar or layered structure that develops in ice during ice flow. The layers are characterised by variations in the ice crystals (e.g., coarse-clear and white bubble-rich). Longitudinal surface structures are prominent features, visible both in the field and on satellite images, and they have a variety of wavelengths and sizes, perhaps reflecting different mechanisms of formation. There are two predominant ways in which they form: deformed primary stratification, and during compressional, accelerating flow. http://www.antarcticglaciers.org/modern-glaciers/structural-glaciology/
