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NORTHERN COAL COMPA ° FIGURE MEEKER a RIO BLANCO n COUNTIES , COLORADO ' co OBSERVATION HOLE 8{i -1� SECTION 21 ,TWP 2N, RNG. 4 ry °' OCTOBER , 1980 Uj cc HYDROLOGY PROGRAM IT Leonard R' ttaig WderV€ngil>eers, klc. OONC OI ° DEC 19 OBSERVATION GEOPHYSICAL LOGS GEOLOGY LOG HOLE (DEPTH ADJUSTED) CONSTRUCTION GAMMA BULK G -0 RAY DENSITY CALIPER {�JJLO (sgu) (9 /cm3) 30 (inches) O 0 1 200 11 0 1 4 C 1W TOP PLUG 1 2093 PERFORATION 22367- TOPJ COAL 2108- • Siltstone GRAVEL BASE J COAL 2119 _ SOP G COAL 228 TOP OF t GRAVEL 2 120 Shale, silty, sandy stringer 210 PERFORATEI 213Q_ Shale, silty 1 ZONE 2140 Siltstone BASE OF .'. +.'. Sandstone, calcareous 1 GRAVEL Shale • TOP OF 2168- "• Siltstone - - - GRAVEL Shale, silty, sandstone lenses 2173- TOP OF ERFORATION 2234 4 PERFORATION 22367- " - BASE OF • Siltstone GRAVEL 227,L SOP G COAL 228 ASE G COAL BASAL PLUG I "T,D TAGGED 2835 RIOR TO EMENTING 2910_ TD. LOGGED P93Q TD. DRII LED 1 r JJ N Y� 1• FF LRF 9 a CC3 CC2 CCU Be I I Y X 1 W Y f T , up, N j: 1 I Lid iN C 0 . Alluvium and soil with water 0 0 Shale silty Siltstone Shale, silty to sandy Sandstone, calcareous, friable 100 coal Shale, silty Sandstone, friable, calcareous, trace carbonaceous, trace pyrite Coal, some carbonaceous • Shale, trace carbonaceous 2 gc Shale, sandy u: Sandstone, friable, calcareous, argelaceous stringers Shale, silty to sandy Sandstone, friable, calcareous, carbonaceous material, shaley zone 300 Siltstone • Shale, silty in points, sandy stringers Siltstone Shale, carbonaceous stringers, © coal stringers, sandy lenses sandstone, friable, ral.r'arenv, l trace carbonaceous Shale, silty y ". Sandstone, calcareous = • Shale, trace carbonaceous Sandstone, calcareous Shale, silty Sandstone, slightly calcareous COAL NOT SEEN IN CUTTINGS Shale, Siltstone stringers, coal streak, sandstone lenses •• .. Sandstone, carbonaceous i• Shale, silty to sandy, coal stringers i. •.' Sandstone, calcareous, carbon- L. aceous stringer �'• Shale, silty, sandstone lenses, trace carbonaceous .r. Sandstone, argelaceous, cal - • careous, shale zone, carbonaceous d LShale, silty, sandstone Lenses, calcareous OV-Y Shale, bentonitic, sandy stringers e "1 Sandstone, calcareous Shale, silty Tl• Siltstone, shaley stringers i Shale, silty to sandy, calcareous Sandstone, calcareous, carbon- . aceous shale zone, trace coal Shale, silty 900 Shale, siltstone lenses, sand- stone zone, coal streak OF Sandstone, calcareous Shale, coal zone at top Sandstone, calcareous, trace carbonaceous 100 Carbonaceous, shale, coal stringers • Shale, silty to sandy, sandstone © lenses, carbonaceous stringers Coal Carbonaceous, shale Shale, silty Siltstone, carbonaceous �•• Sandstone, calcareous, carbe,• •aceous, coal stringer 110 JW..'. Shale -, silty Shale, carbonaceous, sandy in points, coal zone at top Sandstone, calcareous, carbon- aceous, shales stringers 1200 'Siltstone • Shale, silty to sandy, sandstone lenses, carbonaceous stringer, m coal stringer Sandstone, calcareous, argelaceous Shale, carbonaceous, coal stringer Siltstone Shale, silty, carbonaceous in points, calcareous, coal zone 1300 y ty Sandstone, carbonaceous Siltstone, calcareous hale, silty to sandy, carbon- _ ceous Shale i Shale, carbonaceous in part, 140 oaly streak, silty in part Shale, silty to sandy, carbon- aceous stringers oal Siltstone Shale, silty, siltstone zones, sandstone lenses, coal zone 150 •1 .. n.ulJst,��.c, calcareous, shale;. .1 > tringer, trace carbonaceous 'hale, silty, carhona, elan lringers, coal .•.rne az bottom •'andstone, calcareous., shalev tringer, trace carbonaceous haley, silty, sandsto:n• icncc- 16 Sandstone, calcareous, shale ••• stringer, trace carbonaceous • • ihale, carbonaceous in i,.3� , oAly material, silty e. • Sandstone, caleareous, shal, •• }�• tringer, trace carbonaceous 170 Shale, trace coal iltstone hale, silty, trace car`)onacc oal zone oal Shale, sandy Shale, carbonaceous in part Sandstone, calcareous, shaley stringers Shale, silty 1800 andstone, calcareous • hale sandy, sandstone lenses, 0 race carbonaceous arbonaceous, shale, coal aterial, silty • Shale, carbonaceous stringer, oaly Siltstone Sandstone, calcareous © hale, silty, sandstone, lenses 1900 arbonaceous, shale • oal Shale, silty to sandy, carbon- aceous stringers Siltstone, calcareous Shale, silty, sandy stringer, coal zone - Sandstone, calcareous, coal zone .l. 2000 'Shale, sandy. carbonaceous zone a, Shale, coal zone Shale, silty • Shale,` silty to sandy, carbon- aceous stringej Sandstone, carbonaceous stringer 2700 Shale, silty, sandstone stringers Sandstone, calcareous, trace •• 1 carbonaceous Carbonaceous, shale, silty . to sandy, coal stringers • Shale, sandy, trace carbonaceous 1 Sandstone, calcareous, trace carbonaceous Shale, silty in points 28 Sandstone, calcareous, trace carbonaceous Shale, silty Shale, sandy, trace carbonaceous, coal zone Siltstone, carbonaceous Shale, silty stringers Shale, silty to sandy, carbon- ' aceous stringers Sandstone, calcareous, trace •• carbonaceous 29 I I��III ��III I�I�I �IIII ��II� VIII III �� Coal, shale parting " Shale, silty, sandstone lenses • Siltstone • Sandstone, calcareous, shaley Sandstone, friable, calcareous " Shale, silty, sandy stringer 210 Coal Shale, silty • ' Siltstone .'. +.'. Sandstone, calcareous 1 Shale • Shale, trace carbonaceous 22 "• Siltstone - - Shale, silty, sandstone lenses m Carbonaceous, shale Coal X "•' ;.'. Sandstone, calcareous, trace t1i carbonaceous ' Shale, trace carbonaceous bonaceous Shale, sandy Coal • I Siltstone, carbonaceous stringers 230 ,- Shale, silty, sandstone lenses a, Shale, coal zone Shale, silty • Shale,` silty to sandy, carbon- aceous stringej Sandstone, carbonaceous stringer 2700 Shale, silty, sandstone stringers Sandstone, calcareous, trace •• 1 carbonaceous Carbonaceous, shale, silty . to sandy, coal stringers • Shale, sandy, trace carbonaceous 1 Sandstone, calcareous, trace carbonaceous Shale, silty in points 28 Sandstone, calcareous, trace carbonaceous Shale, silty Shale, sandy, trace carbonaceous, coal zone Siltstone, carbonaceous Shale, silty stringers Shale, silty to sandy, carbon- ' aceous stringers Sandstone, calcareous, trace •• carbonaceous 29 I I��III ��III I�I�I �IIII ��II� VIII III �� • Siltstone Sandstone, calcareous, shaley ti• stringers, carbonaceous streak Siltstone 24 • Shale, sandy, sandstone lenses, p carbonaceous 1 Coal with parting Carbonaceous, shale Shale, sandy ;.'. Sandstone, calcareous 25 QQ Shale, silty to sandy, trace car- ' bonaceous Siltstone, trace carbonaceous • I •" •.. Shale, silty, sandstone lenses I © Shale, silty in points, carbon- .6 s -- - - -•'anus zone Qt Coal C1 2 1 a, Shale, coal zone Shale, silty • Shale,` silty to sandy, carbon- aceous stringej Sandstone, carbonaceous stringer 2700 Shale, silty, sandstone stringers Sandstone, calcareous, trace •• 1 carbonaceous Carbonaceous, shale, silty . to sandy, coal stringers • Shale, sandy, trace carbonaceous 1 Sandstone, calcareous, trace carbonaceous Shale, silty in points 28 Sandstone, calcareous, trace carbonaceous Shale, silty Shale, sandy, trace carbonaceous, coal zone Siltstone, carbonaceous Shale, silty stringers Shale, silty to sandy, carbon- ' aceous stringers Sandstone, calcareous, trace •• carbonaceous 29 I I��III ��III I�I�I �IIII ��II� VIII III ��