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Figure 4. � r „� � <br /> Gateway Colorado Region <br /> Stratigraphic Log 44 <br /> AGE GEOLOGIC UNIT THICKNESS (FT) GRAPHIC LOG AQUIFER <br /> QUATERNARY Alluvium 0-50 ; ; Unconsolidated Aquifer <br /> - .. <br /> CRETACEOUS Dakota Sandstone 0-50 . . . . . . . . . . . . . . . Dakota Burro Canyon <br /> - <br /> - - Burro Canyon Fm 90-120 - - - - - - - - - - - - - <br /> - - - - - - - - - - - - - <br /> - - - - - - - - - - - - - - <br /> I <br /> Brushy Basin Mbr 250-400 - - - - - - - - - - - - - <br /> Morrison <br /> Salt Wash Mbr 0-550 <br /> JURASSIC <br /> Summerville Fm 0-100 <br /> Entrada Samdstone 50-400 Entrada <br /> Carmel Fm 0-120 <br /> Navajo Sandstone 300-800 - - <br /> Kayenta Fm 50-250 :'; .:'•;'•',' :•. '• . Navajo <br /> Wingate Sandstone 250-450 ' ' •• •• - <br /> TRIA I : _ _ _ _ _ _ - - -0,_ <br /> Chinle Fm 200-1800 - <br /> - - - - - - - - - - - - <br /> Moenkopi Fm 200-400 . . . . <br /> . . . . . <br /> PERMIAN Cutler Group 1000-3150 • . Cutler <br /> PRECAMBRIAN PreCambrian -- / ./. • . r <br />