Laserfiche WebLink
U.S. GEOLOGICAL SURVEY McCALLUM AREA <br />DRILL-HOLE LOG, JACKSON COUNTY, COLORADO <br />Hole No. J13 Map Johnny Moog Mountain Date logged 8-23-77 Elevation (f [) 8220 <br />Location: T. 9 N. , R. 7$ W. , sec. 25 1425 F N L 850 FW L Cored: ~ Yes ~x No <br />Drilled depth 140 Logged depth 140 Drilling medium Air Fluid level 122 <br />Geophysical logs: <br />Spontaneous potential (SP): Scale 25 my/in Logging speed 20 fpm <br />Resistivity (RES): Scale 500 ohms/in Logging speed 20 fpm <br />Gamma (G): T.C. 4 Scale 100 cps/in Logging speed 20 fpm <br />Density (DEN): T.C. 4 Scale 3.2 Kcpa/in Logging speed 20 fpm <br />Remarks: Dip of strata is approximately 30o W. <br /> N ~ GEOPHYSICAL LOGS DEPTH <br />LITHOLOGY H o <br /> <br /> `" G SP RES DEN FT M <br /> <br /> -- 10 <br />0-61 Mudatone, dusky-yellowish-brown, -- <br />brownish-black and gray; some _ 50 <br />silty mudstone __ <br /> 20 <br />61-121 Coal, with parting of gray <br />mudstone at 66'-73' 100 30 <br />121-140 Mudstone, silty, gray, and minor <br />interbedded black shale <br /> 40 <br /> <br /> 150 <br /> 50 <br /> 60 <br /> 200 <br /> 70 <br /> 250 <br /> 80 <br /> 90 <br /> 300 <br />44 <br />