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
Substance over form as reflecting only actual sales in "substance" (that is, items delivered to outside parties for payment), and not events that merely fit the "form" of sales documentation for convenience or expedience. The principle strictly governs and resolves disputes of whether workers are independent contractors or employees: Tax law forbids accounting for persons who are "substantially" employees in the "form" of independent contractors. The question of which "form" may be applied to any given case submits to objective tests of the "substance" of the work. Hence substance, over form, is the rule. Substance over form Substance over form is an accounting