kleilaag
Kleilaag, literally meaning clay layer in Dutch, is a term used in geology, pedology, and archaeology to describe a stratigraphic layer composed predominantly of clay. Clay layers are typically fine-grained and can vary in color from blue to grey to brown depending on mineral content and redox conditions. They are commonly found in sedimentary sequences and may form in lacustrine, paludal, or marine environments, or through soil illuviation in stable horizons.
Formation and properties: Clay layers form when clay-sized particles settle out of suspension in quiet water
Significance: Clay layers serve as important stratigraphic markers that help reconstruct past environments and sequence the
Archaeology and dating: In archaeology, clay layers can trap artifacts, organic remains, or pollen, aiding recovery
Regional occurrence: In northern Europe and other regions with clay-rich sediments, holocene clay layers are common