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Geophysical Logs
<br />�t .r a densi
<br />ell
<br />\
<br />1
<br />•mil
<br />c\
<br />K
<br />C
<br />S
<br />C'
<br />1
<br />J
<br />S
<br />l
<br />resistivity absolute
<br />T
<br />i
<br />3
<br />}
<br />L
<br />7
<br />1
<br />6000 0
<br />U I n /am3
<br />increasing
<br />LEGEND
<br />Well Lithoio;ic Description
<br />- .07DIetion
<br />5/8" surface-casing
<br />4 5/8" steel casing
<br />is 3(iL, brown, clay, sandy
<br />RN, ss. and sh; dark red- orange,very hard
<br />ri�fsr some COAL at 40 feet.
<br />.vDS_ONE, very fine grained,soft,gray -
<br />light gray,some carbonaceous
<br />SHALE and some SILTSTONE,minoT
<br />Goal at 80 feet.
<br />LTSTONe". and SHALE, gray, some COAL
<br />;IALS and SILTSTONE,gray,moderate(5%) COAL
<br />SILTSTONE,gray,mod. consolidated, sou.e
<br />SHALE;very sandy 150 -170 feet,
<br />moderate COAL at 160 feet.
<br />180 . . SANDSTONF, Light gray :o orange- red,v.fine
<br />191 "` grainedto med.,slightly burned.
<br />SiEALE,gray to dark gray,some COAL and CLST.
<br />• ILTS and SHALE, light gray,some COAT.
<br />23,1
<br />„ 3URN, sands tone ,siltstone and shale,lt.orang,
<br />290
<br />300 1.1'STONE and SHALE,lt.yray,some sand
<br />t'i)S ONE and SILTSTONE,v.fine grained,
<br />slightly burned.
<br />329 i
<br />31 ; RN
<br />•;n RET?'RNS
<br />;,•„_ ss. and siltstone, fine grained
<br />r H, ILTSTONE and SANDSTONE burned
<br />400 ,
<br />" :i 3;'RN, as previous
<br />410 •7t
<br />' - %5 i0 RETURN
<br />1 f! J BURT, as previous
<br />450 lire* ilLTSTONE and SHALE,gray,mod.consoiidated
<br />i55 0 RE TURNS r
<br />470 ILiSTONE and SHALE, as 450
<br />_ _
<br />'480 >:1aL and COAL,lt.gray to gray.
<br />-_
<br />SLLISTONE and SHALE, as 450'
<br />!—I gg��,TI7RN-
<br />LE some COAL
<br />OAL, SHALE at 535'
<br />S
<br />SUAi.F and SILYS' 0' +L', as 450'
<br />';0 RETURNS
<br />—� , L,meNE and .ft STONE,
<br />:OAL,medium soft
<br />S.HALE,black
<br />shot perforations
<br />I "steel casing with 1 11/4"
<br />Johnson Well Screen
<br />gravel pack
<br />vertical scale 1"= 50'
<br />\En RETURNS
<br />Interbedded SANDSTONE and MUDS7ON
<br />COAI.,clean,brittle,med. bright
<br />MUDSTONE
<br />I IIIIII VIII VIII VIII VIII VIII IIII IIII
<br />NORTHERN COAL COMPANY
<br />NORTHERN #3 and 2 MINE PROJE,IiS
<br />Meeker, Colorado
<br />Hydrogeologic Log
<br />Well 7908
<br />Prepared by `+IAfEC INC., January 1980
<br />Lithologic description generalized from
<br />Northern Coal Company data
<br />Nermil Num er
<br />C lass. ly'¢"il /, X
<br />Secnen_IExbibit: _ r� M- ,e ...... •�._._._-
<br />��
<br />Class: O Revision
<br />Dcc Type: __ —_
<br />" Apprkation (Coal only) O Bond O Enforcement O Inspection
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