Geologic Unit: Purgatoire

Usage:

No current usage?
(†Purgatoire Formation (CO*,NM*,OK*) considered abandoned? Uncertain if used by the CO, NM, or OK Geol. Surveys, or the USGS. Possibly considered same as Lytle Sandstone and Glencairn Formation. See Lytle and Glencairn.)

Subunits:

(alphabetical): Cheyenne Sandstone Member (CO*,NM,OK*), Glencairn Shale Member (CO*), Kiowa Shale Member (CO*,NM,OK*), Lytle Sandstone Member (CO*).

Geologic age:

late Early Cretaceous (Albian)*

Type section, locality, area and/or origin of name:

Not designated. Name from Purgatoire Canyon, Mesa de Maya quadrangle, Las Animas, Otero, and Bent Cos., CO (Stose, 1912).

AAPG geologic province:

Anadarko basin*
Denver basin*
Las Vegas-Raton basin*
Palo Duro basin*
Sierra Grande uplift*