Sedimentary and Stratigraphic Formations

Formations defined by their layered sedimentary rock and the visible record of deposition it preserves, following the stratigraphic and depositional landform class of standard geomorphology. Includes banded and multicolored sandstone ranges built from iron-rich mineral layers deposited over geological time (Zhangye Danxia, Vermilion Cliffs), a fossil-rich badlands sequence exposing a long, continuous stratigraphic record (Ischigualasto Rock Formations), sheer chalk cliffs formed from compressed marine microorganism remains (White Cliffs of Dover), and terraced mineral deposits built up by precipitating calcium carbonate from flowing spring water (Pamukkale). Belongs here: any formation whose defining feature is its layered sedimentary structure or the deposition process that built it up. Does not belong here: a formation shaped primarily by the later erosion of that layered rock rather than by its original deposition (Erosional and Karst Formations), or one built from volcanic rather than sedimentary material (Volcanic Formations).