Limestone and dolomite with minor shale. Guadalupian in south, in part Leonardian to north.
Interlayered eolian sands and piedmont-slope deposits along the eastern flank of the Pecos River valley, primarily between Roswell and Carlsbad. Typically capped by thin eolian deposits.
Includes deposits of higher gradient tributaries bordering major stream valleys, alluvial veneers of the piedmont slope, and alluvial fans. May locally include uppermost Pliocene deposits.
Shelf facies forming broad south-southeast trending outcrop from Glorieta to Artesia area; includes Tansill, Yates, Seven Rivers, Queen and Grayburg Formations (Guadalupian). May locally include Moenkopi Formation (Triassic) at top.
Alluvial and eolian deposits, and petrocalcic soils of the southern High Plains. Locally includes Qoa.
Includes scattered lacustrine, playa, and alluvial deposits of the Tahoka, Double Tanks, Tule, Blanco, Blackwater Draw, and Gatuna Formations, the latter of which may be Pliocene at base; outcrops, however, are basically of Quaternary deposits.
Upper Chinle Group, Garita Creek through Redonda Formations, undivided
Includes Moenkopi Formation (Middle Triassic) at base in most areas.
Sandstones, siltstones, anhydrite, gypsum, halite, and dolomite.
Includes associated alluvial and eolian deposits of major lake basins.
Evaporite sequence, dominantly halite.
Siltstone, gypsum, sandstone, and dolomite.