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, Ausgabe 1414,Teil 1U.S. Government Printing Office, 1996 - 67 Seiten |
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Häufige Begriffe und Wortgruppen
200 KILOMETERS Base Anadarko Basin ARKANSAS Arkoma Arkoma Basins basement confining unit Boundary of study Cambrian CMRASA area COLORADO Cretaceous Denver Basin diagenesis Dolomite dolostone evaporite EXPLANATION LINE fracturing Francois aquifer Francois Mountains geohydrologic units ground-water flow High Plains aquifer hydraulic conductivity hydrologic Interior Plains aquifer Interior Plains confining intrinsic permeability Jorgensen KILOMETERS Base modified limestone LINE OF EQUAL locations lower units Maha aquifer MEXICO MILES MINNESOTA IOWA 90 Mississippian model layer modified from U.S. National Atlas NEBRASKA Ordovician Ouachita Ouachita Mountains outcrop area overlying Ozark aquifer Ozark Plateaus aquifer OZARK SUBREGIONS FIGURE Pennsylvanian Permian PLAINS AND OZARK Plains aquifer system Plains confining system PLAINS SUBREGION Plateaus aquifer system Precambrian recharge REGIONAL AQUIFER-SYSTEM ANALYSIS rocks Sandstone sea level sediment shale simulated SOUTH DAKOTA Boundary southeastern Springfield Plateau aquifer stratigraphic units study area TEXAS U.S. Geological Survey upper unit variable vertical water table Western Interior Plains WISCONSIN ILLINOIS MISSOURI