Lithology 7. The naming of a lithology is based on the rock type. The three major rock types are sedimentary, igneous, metamorphic. Sedimentary rocks are further classified by whether they are siliciclastic or carbonate. Siliciclastic sedimentary rocks are then subcategorized based on their grain size distribution and the relative proportions of quartz, feldspar, and lithic (rock) fragments. Carbonate rocks are classified with the Dunham or Folk classification schemes according to the constituents of the carbonate rock. The name of an igneous rock requires information on crystal size and mineralogy. This classification can often be performed with a QAPF diagram. Metamorphic rock
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