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-26-- <br />zones appear to be relatively low hydraulic conductivities. Packer <br />tests indicate that the fault zone has lower permeability than some of <br />i <br />the more fractured sandstone beds away from the fault zones. <br />MINERAL DEPOSITS <br />One of the primary mineral deposits of economic value in the <br />region are the uranium and vanadium ores which occur in the Salt Wash <br />Member of the Morrison Formation. These ores are presently being <br />mined by underground methods at the JD-5 lease and on adjacent <br />government leases. The proposed vat leaching facility will allow for <br />greater reooverage of low grade uranium ores from the lease. <br />The Paradox structural basin of southwestern Colorado and <br />southeastern Utah has several producing oil and natural gas fields. <br />The principal reservoirs are stratigraphically controlled and <br />primarily occur in Pennsylvanian rods peripheral to the evaporite <br />basin, Molenaar (1972). Other formations which have produced oil are <br />the Mississippian limestones and Devonian sandstones. In addition, <br />gas has been encountered in the limestone member of the Hermosa <br />Formation and overlying Cutler Formation. Several deep petroleum <br />tests have been drilled in the Paradox Valley structure without <br />success, Hite and Lohman (1973). <br />Inadium Corporation of America operates a small brine facility <br />aradox Valley near the Dolores River. Sodium chloride brines <br />produced from wells penetrating Paradox caprock in this <br />' and Lohman (1973). Potash salts occur in the Paradox <br />on drilling exploration; however, no attempt has been <br />