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U.S. GEOLOGICAL SURVEY McCALLUM AREA <br />' DRILL-HOLE LOG, JACKSON COUNTY, COLORADO <br />Hole No. J1B Map Johnny Moore Mtn. Date logged 8-23-77 Elevation (f t) 8,207 <br />Location: T._~N. , R.~LW. , sec. 6 : 650 F SL 1050 F WL Cored: ~ Yes © No <br />Drilled depth 118 Logged depth 118 Drilling medium air Fluid level 68 <br />Geophysical logs: <br />Spontaneous potential (SP): Scale 50 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 6.4 Kcpe/in Logging speed 20 fpm <br />Remarks: Dip of strata is approximately 26° SW. <br /> <br />LITHOLOGY ,A., ~ <br />H ° GEOPHYSICAL LOGS <br /> a <br />~' <br />G <br />SP RES <br />DEN <br /> <br /> <br /> <br />0-38 Mudstone <br />medium- <br />ra <br />, <br />g <br />y _ _ <br /> = -_ <br />3 <br />4 <br />8- <br />9 Shale, carbonaceous and coaly; --_ <br />d <br />d <br />t <br />an <br />gray mu <br />s <br />one - <br />c E - <br /> -- - <br /> I <br /> <br />49-68 Sandstone, .light-gray, medium- <br />grained, poorly consolidated, <br />with bioti[e <br />68-83 Coal <br />83-109 Mudstone, reddish-brown and <br />olive-black, some silty; <br /> <br /> <br /> <br />- <br /> <br />-_ / <br />F <br />_- - - _- <br />_ - __- __ <br />= --=- <br />- - _ _ <br />=' -- <br />minor pinkish-gray siltstone _ <br />__ <br />-_-_:.-_ <br />--- <br />109-120 Sandstone, light-olive-gray, <br />fine-grained :~-_=,.~ ~ . <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 />19 <br />