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RECEI`! o FIGURE
<br />MAR OG OBSERVATION HOLE 80 -07
<br />GOM °., o'f =.nsGa HYDROLOGY . PROGRAM
<br />leotard Rice Consulting Water Engineers, Inc. o
<br />1 67(
<br />671
<br />735
<br />752
<br />753
<br />769
<br />OBSERVATION
<br />HOLE
<br />CONSTRUCTION
<br />FF-U __ _
<br />_0
<br />TOP
<br />PLUG
<br />TOP OF
<br />GRAVEL
<br />TOP OF
<br />ERFORATION
<br />BASE OF
<br />GRAVEL
<br />TOP OF
<br />GRAVEL
<br />TOP OF
<br />PERFS
<br />BASE OF
<br />GRAVEL
<br />BASAL
<br />PLUG
<br />GEOPHYSICAL
<br />LOGS
<br />�(
<br />r
<br />to
<br />CD
<br />o
<br />D
<br />N
<br />GAMMA BULK
<br />m
<br />25
<br />RAY DENSITY
<br />CALIPER
<br />(sgu) (97em3 )
<br />(inches)
<br />0 200 6000 0
<br />30
<br />10 5
<br />n
<br />NORTHERN COAL COMPANY
<br />MEEKER 8 RIO BL tNCO
<br />COUNTIES, COLORADO
<br />SEC 20,TWP 2N,RNG 93 W
<br />OCTOBER,1980
<br />)LOGY LOG
<br />H ADJUSTED)
<br />T I — _ Claystone, sandy, calcareous, soil
<br />1 —_- zone at top
<br />I z
<br />1 Claystone, sandy, calcareous
<br />1••••� Sandstone, friable, calcareous
<br />` Shale, carbonaceous in points
<br />( Sandstone, friable, argelaceous
<br />i
<br />stringer
<br />,i.'. ".'. Sandstone, siltstone lenses
<br />i
<br />i
<br />,
<br />i
<br />i
<br />i
<br />i
<br />i
<br />I
<br />I�
<br />I
<br />LL
<br />LLI
<br />K K2
<br />K KI
<br />JJ
<br />1 I
<br />} TT
<br />I
<br />HM
<br />79'
<br />i
<br />100
<br />Shale, sandy, siltstone lenses
<br />Siltstone, calcareous, sandy lenses
<br />1• argelaceous in points
<br />Shale, carbonaceous, sandy, sand-
<br />' stone lenses, calcareous
<br />1
<br />20
<br />Coal with parting
<br />Siltstone, sandy, carbonaceous zone
<br />l^ Shale, silty to sandy, calcareous,
<br />stringers
<br />41 „ ;'; Siltstone, argelaceous, calcareous
<br />Shale, very sandy, calcareous, coo
<br />300 stringer
<br />Siltstone, argelaceous, calcareous
<br />1•.
<br />Sandstone, calcareous
<br />1•
<br />Shale, silty to sandy
<br />400 '•,• Sandstone, calcareous, friable
<br />Shale, silty to sandy, siltstone
<br />lenses, coal stringer
<br />Q
<br />Shale, very sandy, calcareous
<br />I
<br />• Sandstone, carcareous, friable
<br />.1 .
<br />Shale, silty to sandy, carbonaceous
<br />stringers, coal bed
<br />500
<br />Shale
<br />• Sandstone, calcareous, some carbon -
<br />+• •'• aceous
<br />j Shale, sandy, trace carbonaceous
<br />+ - • -
<br />Coal
<br />U 4.
<br />I,
<br />1
<br />j
<br />TD (LOGGED)
<br />D( DRILLED)
<br />i I I
<br />I
<br />i
<br />DD
<br />Shale, silty to sandy, carbonaceous
<br />zone
<br />iltstone, calcareous, thin coal bed
<br />600 Shale, silty to sandy, trace carbon
<br />ceous
<br />Sandstone, calcareous
<br />Shale, sandy, siltstone stringers,
<br />coal bed
<br />Shale
<br />Sandstone
<br />700 Shale, sandy
<br />• Shale, carbonaceous
<br />Coal
<br />a Shale, carbonaceous zone, thin coo
<br />bed
<br />Sandstone
<br />Shale, sandy stringers
<br />Siltstone, sandstone stringers
<br />Shale, sandstone streaks and strin-
<br />gers, with thin coal bed
<br />.I Sandstone, calcareous, trace
<br />Shale, silty, sandy stringers
<br />VERY POOR SAMPLES FROM 660'
<br />to 870' GEOLOGY INTERPRETED
<br />FROM GEOPHYSICAL LOG AND CEO -
<br />LOGRAPH
<br />
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