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<br /> <br /> <br />1 <br /> <br /> <br /> <br />ll <br /> <br /> <br /> <br />fl <br /> <br /> <br />1 <br /> <br /> <br />1 <br /> <br />Capping the oil shale is the brown san~lstuncs of the Uinto formation. This <br />formation is 200-300 feet thick at Logan lJash. A fine-grained basalt flo~~r rock, <br />an erosional remnant of the extensive flo~•rs that cover P,attleinent and Grar.d hlesas <br />south of the Colorado River, occurs on hlt. Callahan in the eastern part of the <br />D. A. Shale area but covers only a few acres. <br />PROBABLE EFFECT OFl t4IhlERAL R[SOURCES A7 LOOAN SJASH: <br />As can be seen in [xhibit 56, the major portion of the existing resource <br />present at Logan !dash Trill be recovered titi~ith the current design of Retort (P6. <br />With the location of the retort above and below the rich oil shale zone, only <br />the low grade oil shale (less than 10 gallons of oil/ton of rock) will not be <br />recovered. <br />Nahcolite and Dawsonite is not a resource at the Logan bash property. Logan <br />Wash is located far south of the main tda!~colite and Da•.rsonite deposition zone. <br /> <br /> <br />-3- <br />