Sedimentary structures
How each structure forms, its typical setting, and what it tells you about way up and flow direction.
Current
Surface
Sole mark
Soft-sediment deformation
Biogenic
Bedding
Sources
Wikipedia: Sedimentary structures · Wikipedia: Way up structure · Univ. of Alberta EAS 233: Primary structures notes · Wikipedia: Hummocky cross-stratification · Wikipedia: Herringbone cross-stratification · Wikipedia: Flaser bedding · Wikipedia: Imbrication · Wikipedia: Stromatolite