Primaarisiltat
Primaarisiltat is a term used in sedimentology, particularly in Estonian-language literature, to denote the earliest silty bed deposited within a sedimentary basin during the initial phase of siliciclastic input. The name combines primaar- (primary) with silt and the nominal suffix -at, and is used to identify a discrete bed that marks the onset of silt accumulation in a sequence.
Formation and characteristics: Primaarisiltat forms when suspended silt particles settle out as hydrodynamic energy declines, such
Stratigraphic significance and interpretation: As an early, low-energy deposit, primaarisiltat serves as a marker for a
See also: sedimentology, stratigraphy, lacustrine deposits, fluvial deposits.