However the relationship of smooth and lobate plains is uncertain. It is a major cause of the surface appearance of lobate debris aprons. They are either lobate or pinnate, with spiny edges. Below are examples of lobate debris aprons that were studied with HiRISE. This process produces a series of interconnecting lobate shapes that are pillow-like in cross-section. The ultimate segments (pinnules) of the fronds are mostly lobate or digitate. In Russia the LGM ice margin was highly lobate. Like lobate debris aprons, they are believed to be ice-rich. Based on the structure, ejecta blanket are described as rampart, lobate, butterfly, splosh, sinuous, etc. The head contains two digestive glands and the small lobate stomach that they empty into. At very high temperatures, grains are highly lobate or ameboid, but can be nearly strain-free. These deposits of rock debris are called lobate debris aprons (LDAs). The flanks of Ascraeus Mons are covered with narrow, lobate lava flows and lava channels.