Assessing Post-Miocene Tilting of the Southern High Plains Through Paleoslope Reconstructions of the Ogallala Formation

Abstract

The Southern High Plains (SHP) is a physiographic region found in the panhandle of Texas and eastern New Mexico. The SHP is capped by an erosionally resistant caliche soil profile, the Caprock Caliche. Stratigraphy underlying the Caprock Caliche is largely fluvial and eolian deposition representing denudation of the Southern Rocky Mountains and Rio Grande Rift flank during the Miocene forming what is known as the Ogallala Formation. The dimensionless slope of the modern