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Depth to Salt


Generalized depth to top of Salado salt-bearing interval from approximate land surface based on log datum and generalized 1:250,000-scale topographic maps to top Alibates Formation.

The depth of the Alibates below the surface was prepared as a simple way of separating the areas where active salt dissolution processes are probable (near surface settings) from areas where salt thinning may be relict from paleohydrologic conditions (deeply buried). Salt occurs near the surface (<1,000 ft deep) along the east edge of the study area and along the trend of the Central Basin Platform, especially in Crane and north-central Pecos Counties (Yates oil field area). Salt is deeply buried by Triassic and Tertiary sediments along the Midland Basin, Northern Shelf, and Matador Arch structural elements. There is a prominent increase in depth to salt that corresponds to the prominent salt thin (Ochoan isopach) and depression in the top Alibates structure in central Winkler and Ward Counties. In the western Delaware Basin, burial to the top of the salt-bearing interval is moderate, generally >1,000 ft, but complicated by dissolution along the course of the modern and paleo Pecos River (Bachman, 1984).


Outcrop Geology: Generalized Geologic Map
Above Salt Structure: Structure on Top of the Alibates
Thickness of Salt-Bearing Interval: Ochoan Isopach
Salt Quality: Net Salt and Percent Salt
Below Salt Structure: Structure on Top of the Yates