Lithology sense of displacement across the zone. In igneous rocks, small-scale structures are mostly observed in lavas such as pahoehoe versus ʻAʻā basaltic flows, and pillows showing eruption within a body of water or beneath ice. Unconsolidated surficial materials may also be given a lithology. This is defined by grain size and composition, and is often attached to an interpretation of how the unit formed. Surficial lithologies can be given to lacustrine, coastal, fluvial, aeolian, glacial, and recent volcanic deposits, among others. Examples of surficial lithology classifications used by the US Geological Survey are, "Glacial Till, Loamy", "Saline Lake Sediment", and
Habitability of natural satellites film include: Earth's moon in "A Trip to the Moon" (1903); Yavin 4 from "Star Wars" (1977); Endor in "Return of the Jedi" (1983); LV-426 in "Alien" (1979) and "Aliens" (1986); Pandora in "Avatar" (2009); LV-223 in "Prometheus" (2012); and, Europa in "Europa Report" (2013). Habitability of natural satellites The habitability of natural satellites is a measure of the potential of natural satellites to have environments hospitable to life. Habitable environments do not necessarily harbor life. Planetary habitability is an emerging study which is considered important to astrobiology for several reasons, foremost being that natural satellites are predicted to greatly