WICHITA OROGENY

a period of block faulting in the southern part of the WichitaArbuckle System in western Oklahoma and northern Texas. The uplift is dated from the Late Carboniferous epoch (formerly the Pennsylvanian period; the Late Carboniferous epoch occurred from 320 to 286 million years ago). The ApishipaSierra Grande uplift in eastern Colorado and northern New Mexico is of similar age and may be a part of the Wichita orogeny.