Laserfiche WebLink
definitely related to cross-faults." <br />19 5 3 AEC REPORT <br />In addition to mineralized breccias, low-grade orebodies <br />occur along favorable limestone beds in the lower Weber <br />[Belden]. These orebodies are apparently related to bedding <br />faults but more so to cross faults, and diminish in size <br />away from the latter. The ores contain less silver but more <br />lead than the breccias, and the minerals are less oxidized. <br />Gangue minerals are carbonate and small amounts of silica. <br />Work by the Bureau of Mines, pp. 10-46. USBM work consisted <br />of rehabilitation, geologic and topographic mapping, channel <br />sampling, and percussion and diamond drilling. <br />Rehabilitation was done to make the mine workings safe for <br />sampling. An attempt to reopen the No. 3 tunnel was <br />unsuccessful. The rest of this section contains sample <br />location and analysis tables, location and interpretation <br />maps, drill hole logs and so on. <br />Summary of beneficiation tests, pp. 96-47. <br />F. S. BOYD, JR. ~ C. P. BROMLEY, RECONNAISSANCE OF THE ASPEN AREA, INCLUDING THE <br />SMUGGLER MINE, PITKIN COUNTY, COLORADO, REPORT No. RME-4031 (U.S. ATOMIC <br />ENERGY COMMISSION 1953 ) ( " 1953 AEC REPORT") . <br />The summary of reconnaissance geology and sampling work <br />performed in 1952 in the Aspen area by the Atomic Energy <br />Commission, including the examination of mine dumps, <br />accessible mine workings, and limited outcrops, for uranium. <br />Abstract, p. 5. No significant radioactivity was found in <br />the Aspen area except in the Smuggler mine. Uranium in the <br />Smuggler occurs in a fault breccia consisting of dolomitic <br />limestone blocks and fragments in a carbonaceous shale <br />matrix.00 Uranium, thought to be in the form of primary <br />pitchblende, occurs in a matrix along with lead, zinc and <br />silver sulfides, and silver sulfosalts. Some uranium also <br />Again, this interpretation has been proven incorrect; the <br />principal breccias are sedimentary features within the Leadville <br />Limestone and at its contact with the Belden formation, with little or <br />n0 fault control. See $TEGEN THESIS dnd STEGEN REPORT. <br />°0 BreCCia II of Stegen, see, generally, $TEGEN THESIS and STEGEN REPORT. <br />BIUCe A. CO11inS - T3 - BIBLIOGRAPHY <br />