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<br /> GEOLOGIC tlNI! Y[ELDS (grm) <br /> Mc.sa"~rde Group tJ!m 1 to 1~ <br />;.::~~) Levis Shale II! very little <br />Animas Formation C2J 1 10 <br /> ..., to <br /> Nacimiento Formation ~ J to 42* <br />1\) San Jose Formation [22J 1 4~* <br />"'l .":. ~ .,: < . to <br />~. Ojo Alamo Sandstone 11m 2 '0 30* <br />~ <br /> Gallup Sand5tone g up to 800 <br /> Cliff House Sandstone Em up '0 10 <br /> ...'... <br /> ':.:....:. <br /> Fruitland Formation 0 up '0 5 <br /> ,. . <br /> Menefee Formation ~ up '0 10 <br /> Morrison Formation [ill 20 or """e <br /> Crevasse Canyon Formation ITI!lIlJ 45 COLORADO <br /> up to <br /> Lookout Point Sandstone E:2 up to 10 <br /> Pictured Clif fs Sandstone - up to 10 <br /> Mancos Shale EEEE very little <br /> llrDee;le t' lJe.lls may yield several thousand ..." "'~ <br /> gP1D. ,-I CI:: <br /> I ~ <br /> I <br /> ---------- <br /> I <br /><;:.Z~' <br /> <br /> <br /> <br />ARIZONA <br /> <br />Source: Geologic units are generalized from U.S. Geological Survey <br />1:500,000 geologic maps for the respective Upper Basin States. <br />Well yields are from various references listed in the bibliog- <br />raphy. <br /> <br />,."., <br /> <br />FIGURE 3.6: GENERAL BEDROCK GEOLOGY AND WELL YIELDS, <br />SAN JUAN RIVER BASIN <br /> <br />3-27 <br />