Research about Arkansas, Colorado, Kansas, Missouri, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, Wyoming

USGS1996

Analysis of regional aquifers in the central Midwest of the United States in Kansas, Nebraska, and parts of Arkansas, Colorado, Missouri, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming: Summary

Large quantities of ground water are available for use from three regional aquifer systems in the central Midwest of the United States. Parts of the lowermost aquifer contain nearly immobile brine and may be hydrologically suitable for material storage or waste disposal. Results of numerical modeling and geochemical analyses confirm general concepts of ground-water flow in the regional aquifer systems.

Arkansas, Colorado, Kansas, Missouri, Nebraska, Ne↗

USGS1993

Regional aquifers in Kansas, Nebraska, and parts of Arkansas, Colorado, Missouri, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming: Geohydrologic framework

Regional aquifers are described within a 370,000-square-mile area extending from the foothills of the Rocky Mountains in Colorado to the Missouri and Mississippi Rivers in eastern Nebraska and Missouri, and from South Dakota to the Ouachita, Arbuckle, and Wichita Mountains of Arkansas and Oklahoma. The present geohydrologic framework of aquifers and confining units in this area is controlled by topography, geologic structures, and hydraulic properties. All of these characteristics are the result of past geologic and hydrologic processes. From the end of the Precambrian to Late Cambrian time, the area was above sea level, and an uneven erosional surface had developed on the fractured crystalline rocks. From Late Cambrian through Middle Ordovician time, a transgressive but cyclic sea covered the area. The oldest deposits were mostly permeable sand followed by slightly permeable calcareous mud consisting of aragonite and algal remains.

Arkansas, Colorado, Kansas, Missouri, Nebraska, Ne↗