subsurface geology and coal resources of the pennsylvanian system ...

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f 12 ILLINOIS BASIN COAL RESOURCES -AXIS OF LASALLE ANTlCLlNAL BELT fi BOUNDARY OF AREA IN WHICH TOP OF N0.6 COAL BED IS MORE THAN GOO'BELOW SEA LEVEL. FIG. 25.-Richland County index map.
SHOAL CREEK LIMESTONE WEST FRANKLIN LIMESTONE COALUNO 7 ' COAL NO 6 COAL NO 5A COAL NO 5 COAL"N0 4" COAL8'N0 2" DEKOVEN COAL --- DAVIS COAL STONEFORT(? LIMESTONE FIG. 26. - Generalized partial section of the Pennsylvanian system shewing certain key beds of the lower part of the McLeansboro, of the Carbondale, and of the upper part of the Tradewater groups in Richland County. It is also generally given this name by drill-a ers and oil geologists working in this county. The interval between West Franklin limestone and Herrin (No. 6) coal bed in the county varies from 180 to about 250 feet. In most parts of the county the interval is about 225 feet. At one locality at least (drill hole No. 56, sec. 2, T. 3 N., R. 9 E.) only 180 feet of interval is recorded (fig. 27). The limestone and underlying shale cuttings collected by the company from this drill hole ss7ere found to correspond closely with the West Franklin limestone and underlying shale as described below. Drill cuttings and various types of drilling records indicate that the West Franklin limestone in Richland County usually consists of two benches of light gray, finely crystalline, dense, moderately f ossilif erous limestone, commonly separated by 1 to I feet of light gray micaceous clay shale (fig. 28). Locally 6 inches to 1 foot of black shale is found at the top of the gray shale. The upper bench of limestone averages 5 feet in thickness, but locally this bench is as much as 10 feet thick. The lower bench is fairly uniformly 8 to 10 feet thick. In places only one bench is present, but whether this represents the upper or lower bench or both is not kno,wn. The upper bench shows moderately high resistivity (80-100 ohm-meters) in the normal curve in most logs (fig. 29), the third curve generally having a reverse (negative) peak. The potential of this bench in some holes was high for a limestone (No. 1, fig. 29; Nos. 126 and 128, fig. 27), indicating high permeability, but in many holes the potential was not high. The lower, more massive bed of limestone is distinguished by a very pronounced peak in both the normal resistivity and the third curve, and a potential varying to about the same degree as the upper limestone bench. As elsewhere when onlp one bench of limestone is present or onlp one high resistivity peak is shown, identification of the limestone as the upper or lower bench is highly conjectural. This is the condition in several .localities in the county, notably
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SUBSURFACE GEOLOGY AND COAL RESOURC
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ORGANIZATION STATE OF ILLINOIS HON.
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CONTENTS INTRODUCTION BY GILBERT H
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PAGE Structure of Herrin (No. 6) co
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SUBSURFACE GEOLOGY AND COAL RESOURC
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oi the strata below the lower bench
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INTRODUCTION 13 less than 1000 feet
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INTRODUCTION 15 Grateful acknowledg
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INTRODUCTION TABLE 2.-CONTROL DRILL
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INTRODUCTION i I County Sec. T. R.
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Cumberland County 585 725 731 1130
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Jasper County Siltstone 11 ; black
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Sangamon County Wabash County 467 "
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28 ILLINOIS BASIN COAL RESO UKCES t
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30 ILLINOIS BASIN COAL RESOURCES 1
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32 ILLINOIS BASIAT COAL RESOURCES t
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34 ILLINOIS BASIN C09L RESOURCES la
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36 ILLINOIS BASIN COAL RESOURCES gr
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3 5 ILLINOIS BASIN COAL RESOURCES 1
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40 ILLINOIS BASIN COAL RESOURCES be
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42 ILLINOIS BASIAT COAL RESOURCES W
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44 ILLINOIS BASIhT C014L RESOURCES
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46 ILLINOIS BASIN COAL RESOURCES qu
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ILLINOIS BASIN COAL RESOURCES TABLE
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50 ILLINOIS BASIN COAL RESOURCES Lo
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ILLINOIS BASIN COAL RESOURCES 34 I
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ILLINOIS BASIN COAL RESOURCES EDWAR
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TABLE 6.-INTERVALS BETWEEN TOP OF N
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58 ILLINOIS BASIAT COAL RESOURCES H
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60 ILLINOIS BASIN COAL RESOURCES li
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Page 68 and 69: ILLINOIS BASIN COAL RESOURCES TABLE
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Page 74 and 75: ILLIxOIS BASIN COAL RESOURCES
Page 76 and 77: 7 4 ILLINOIS KASIAT COAL RESOURCES
Page 78 and 79: ILLIATOIS BASIN COAL RESO URCES GAR
Page 80 and 81: ILLILVOPS iZASIA7 COAL RESOURCES
Page 82 and 83: 80 ILLINOIS EASIN COAL RESOURCES re
Page 84 and 85: ILLINOIS BASIN COAL RESOURCES FEET
Page 86 and 87: 84 ILLINOIS BASIN COAL RESOURCES St
Page 88 and 89: ILLINOIS BASIN COAL RESOURCES 0 I F
Page 90 and 91: ILLINOIS BASIN COAL RESOURCES * 17
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Page 94 and 95: 92 ILLINOIS BASIN COAL RESOURCES gr
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Page 98 and 99: SUBSURFACE GEOLOGY OF HAMILTON COUN
Page 100 and 101: ILLINOIS BASIN COAL RESOURCES ELECT
Page 102 and 103: 100 ILLINOIS BASIN COAL RESOURCES b
Page 104 and 105: ILLINOIS BASIN COAL RESOURCES FEET
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Page 116 and 117: 114 ILLINOIS BASIN COAL RESOURCES C
Page 118 and 119: 1 16 ILLINOIS BASIN COAL RESOURCES
Page 120 and 121: GULF REFINIXG COMPA:
Page 122 and 123: ILLINOIS BASIN COAL RESOURCES Count
Page 124 and 125: 122 ILLINOIS BASIN COAL RESOURCES S
Page 126 and 127: __!L APPENDIX OF TABULATED DATA Abb
Page 128 and 129: Total depth: The total depth of the
Page 130 and 131: , -- .- -- ----- - -- I---]=- Locat
Page 132 and 133: Location of Hole I Twp. 1 Range / S
Page 134 and 135: Location of Hole TABULATED DATA ON
Page 136 and 137: t TABULATED DATA ON KEY BEDS CLAY C
Page 138 and 139: TABULATED DATA ON KEY BEDS CLAY COU
Page 140 and 141: ---- - - - --.-. - - - - - - Twp. L
Page 142 and 143: Location of Hole I County Number --
Page 144 and 145: Location of Hole I Twp. 1 Range Sec
Page 146 and 147: - -- -- - -- *- - -- -- - -. Locati
Page 149 and 150: Location of Hole TABULATED DATA ON
Page 151 and 152: Location of Hole I Twp. Range 1 Sec
Page 153 and 154: Location of Hole County Number TABU
Page 157 and 158: TW~. I Location of Hole -- Range SI
Page 159 and 160: Location of Hole County Number TY p
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TABULATED DATA ON KEY BEDS CLAY COU
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Location of Hole I== TABULATED DATA
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TABULATED DATA ON KEY BEDS CLAY COU
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Twp. 1 iiange 1 Sec. TABULATED DATA
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Twp. -- 1N 1N 1N Location of Hole R
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-- TABULATED DATA ON KEY BEDS Locat
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TABULATED DATA ON KEY BEDS EDWARDS
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Location of Hole Twp. Range Sec. Nu
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TABULATED DATA ON KEY BEDS EDWARDS
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Location of Hole I I Twp. Range Sec
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' Location of Hole Twp. Range Sec.
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Location I of I Hole - - -- Twp. Ra
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PENNSYLVANIAN SYSTEM IN ILLINOIS BA
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-- TABULATED DATA ON KEY BEDS -- GA
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TABULATED DATA ON KEY BEDS GALLATIN
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TABULATED DATA ON KEY BEDS I GALLAT
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Location of Hole I L p . Range iec.
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- Twp. Location o Hole Rang< Sec. /
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Location of Hole 1 1 1 Twp. Range S
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-- Location of Hole I F Twp. I Rang
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Twp. Location of Hole I Range Sec.
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TABULATED DATA ON KEY BEDS Location
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Twp. 3 8 Location of Hole TABULATED
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Twp. I TABULATED DATA ON KEY BEDS 0
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TABULATED DATA ON KEY BEDS 10 HAMIL
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Location of Hole I Twp. 1 Range 1 S
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TABULATED DATA ON KEY BEDS HAMILTON
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SYLVANlAM SYSBE A. - - 'aw ek m~c r
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TABULATED DATA ON KEY BEDS HAMILTON
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p-p-ppppp - -- Location of Hole I r
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Location of Hole Twp. Range Sec. TA
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--- -- -- -- - Location of Hole . -
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IAN SYSTEM IN ILLINOiS BASIN
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PENNSYLVANIAN SYSTEM IN lLLlNOlS BA
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I- PENNSYLVANIAN SYSTEM IN ILLINOIS
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1 TIP. Range Sec. . -.-- -- TABULAT
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-f- T I Q Be Q ~n rm O\ - 3 ~ o m+
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NSYLVANIAN SYSTEM IN ILLINOIS BASIN
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2N 2H 1 county TABULATED DATA ON KE
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TABULATED DATA ON KEY BEDS RICHLAND
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Location of Hole Twp. Range Sec. TY
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PENNSYLVANIAN SYSTEM IN ILLlNOlS BA
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Location of Hole - TABULATED DATA O
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'n, (U - ;I Y .- I- L - (U -0 - 2:
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TABULATED DATA ON KEY BEDS Location
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SYSTEM IN /LLINOIS BAS/ - ma now- e
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- - Location I I of Hole TXP. Range
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-. - - --- - - - -- County Number T
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RICHLAND COUNTY 0 9 ot- OV) urn - -
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TABULATED Location of Hole 1 Type I
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