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The AAPG/Datapages Combined Publications Database
West Texas Geological Society
Abstract
Deep-Water to Shallow-Water Transition in Evaporites in the Delaware Basin, Texas
Abstract
The final Permian fill of the Permian Basin is dominated by bedded anhydrite and halite. A combination of evaporite fabric analysis and sequence stratigraphic interpretation reveals an overall upward-shallowing pattern, composed of cycles containing predominantly deep water (density-stratified brine) facies through the Castile Formation, overlain by cycles documenting shallow water and exposure in the Salado Formation. Laminaie rhythmically form high-frequency cycles that document rapid sedimentation by cumulate deposition during the Castile stages of basin filling. Evidence of high-magnitude water-level drops seen in the Salado Formation reflects nearly isolated basin geometry.
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