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U.S. GEOLOGICAL SURVEY McCALLUM AREA <br />DRILL-HOLE LOG, JACKSON COUNTY, COLORADO <br />Hole No. E8A Map Eagle Hill Date logged 9-7-77 Elevation (f t) 8245 <br />Location: T.N. , R. 78 W. , sec. 9 750 F S L 800 FW L Cored: ~ Yes ©No <br />Drilled depth 2pp Logged depth 200 Drilling medium Mud Fluid level 1 <br />Geophysical logs: <br />Spontaneous potential (SP): Scale 50 my/in Logging speed 20 fpm <br />Resistivity (RES): Scale 1000 ohms/in Logging speed 20 fpm <br /> <br />Gamma (G): T.C. 4 Scale 100 cpa/in Logging speed 20 fpm <br />Density (DEN): T.C. 4 Scale 3.2 Kcps/in Logging speed 20 fpm <br />Remarks: Dip of strata app roximately 76o NE. <br /> °,~ ~ GEOPHYSICAL LOCS <br />LLTHOLOGY H <br /> o <br /> y G SP RES DEN <br /> <br /> r: i. <br /> <br />.'Y.': <br />u <br />_ <br />_ I <br />0-72 Sandstone, grayish-orange to ~~.:~ - - __ ~ __ <br />white, coarse- to medium- - - <br /> <br />grained, subangular; gravel _ <br />~__ -=-= = --- -- <br /> <br /> <br /> ~- __ _ _- <br />i - <br />72-156 Coal, w <br />th <br />mudstone <br />partings = --- - =- <br />at 99'-102' -' . <br />and 136'-141' - - .r __ -'=~=-== <br />156-200 Mudstone, medium-light-gray __ _ __ - <br /> F- --- -.= ...-_ -_ <br /> <br />DEPTH <br />FT M <br />10 <br />50 <br />20 <br />100 30 <br />40 <br />150 <br />50 <br />200 60 <br />70 <br />250 <br />80 <br />90 <br />300 <br />34 <br />