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<br />.. <br /> <br />M aquifer <br />Morrison aquifer <br /> <br />N aquifer <br />Entrada-Navajo aquifer <br />Navajo aquifer <br /> <br />P aquifer <br />C aquifer <br />DeChelly aquifer <br /> <br />P aquifer <br /> <br />Redwall aquifer <br /> <br />Aquiler termInology written illlegulal <br />typeface IS tram Avery (1986): In "alie <br />typeface IS from Thomas (1989) and <br />Howells (1990). and in bold lype1ace is <br />as used in this report <br /> <br />South <br /> <br />L.t'~E <br /> <br />D aquifer <br />Dakota aquifer <br /> <br />Westwater Canyon Sandstone Member <br />Recapture Shale Member <br />Sail Wash Sandstone Member Cretaceous <br />Dakota Sandstone <br />Brushy Basin Shale Member <br />(Morrison Formation) <br /> <br />--- <br /> <br /> <br />._----~ <br /> <br />--. <br /> <br />Triassi~- Entrada-Navajo-Wingate Sandstones <br />JurassIc <br /> <br />Triassic Chinle <br /> <br />Moenkopi Formations <br /> <br />1'z <br />; ([ 0 <br />oe ~ ~ --..... <br />Q) I-::E <br />I>. ::l 0: <br /><.)0 <br /> <br />White Rim Sandstone Member <br />DeChelly Sandstone Member <br />Organ Rock Shale Member <br />Cedar Mesa Sandstone Member <br />Hal Bito Member <br /> <br />- <br /> <br /> <br />< <br />(/)1>. <br />O::l <br />:;:0 <br />0: <br />" w <br />.. <br />I>. <br /> <br />Honaker Trail Formation <br /> <br />Paradox Fonnation <br /> <br />Pinkerton Trail Formation <br /> <br />Mississippian <br /> <br />RedwaH- Leadville Limestone <br /> <br />EXPLANATION <br /> <br />..........- Arrow indicates direction of potential ground-water movement resulting from hydraulic-head <br />differences-Direction of ground.water movement summarized from Thomas (1989); Freethey and Cordy (1991); <br />and Weiss (1991) <br /> <br />AVERAGE DEPTH BELOW LAND SURFACE TO TOP OF HYDROGEOLOGIC UNITS <br /> <br />Morrison Formation-Bluff Sandstone = 265 feet <br />Entrada Sandstone = 550 feet <br />Navajo Sandstone = 775 feet <br />Chinle Formation = 1,475 reet <br /> <br />Cutler Formation = 2,640 feet <br />Hermosa Group = 4,585 feet <br />Leadville Limestone = 6,910 feet <br /> <br />Figure 3. Schematic croSS section of hydrogeologic units in the vicinity of the Greater Aneth Oil Field, southeastern San Juan County. Utah. <br /> <br />North <br /> <br />Upper Mesozoic <br />aquifers and <br />confining layers <br /> <br />Middle Mesozoic <br />aquifers <br /> <br />Lower Mesozoic <br />confining layers <br /> <br />Upper Paleozoic <br />aquifer <br /> <br />Upper Paleozoic <br />aquifers and <br />confining layers <br /> <br />Middle <br />Paleozoic <br />aquifers <br /> <br />Aquifer terminology written in <br />rugular typeface is from Taylor and <br />others (1986): and in bold <br />typeface is as used in this report <br />