File:Bulletin (1910) (14784256652).jpg

Identifier: bulletin72unit (find matches)
Title: Bulletin
Year: 1910 (1910s)
Authors: United States. Bureau of Mines
Subjects: Mines and mineral resources Mines and mineral resources Mining engineering
Publisher: Washington U.S. Govt. Print. Off. (etc.)
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

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several small breakshave been found in some of the mines and there is a fault of con-siderable magnitude northwest of Murphysboro near the boundaryline between Jackson and Perry Counties. Near Eldorado andHarrisburg the measures are cut by dikes of igneous rock whichhave altered the adjoining coal to coke. CHARACTER OF THE COALS. The Herrin coal is a high-grade bituminous coal in great favoramong fuels in the Middle States markets. The average of 17analyses by S. W. Parr, of the Illinois State Geological Survey, isgiven by Shaw and Savage0 as follows: Averages of analyses of 17 coal samples from Herrin district. Condition of sample. Totalmoisture. Fixedcarbon. Volatilematter. Ash. Sulphur. Calorificvalue. Per cent.9.11 Per cent.48.7953.0259.39 rir cent.32.6636. IS40.60 Per cent.9.4310.39 Per cent.1.651.86 B. t. u.11,799 13,004 Moisture and ash free 14,507 o Shaw, E. W., and Savage, T. E., Description of the Murphysboro and Herrin quadrangles: U. S. Geol.Survey Folio 185, 1912, p. 14.
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OF PARTS OFLOKSON, PERRY. FRANKLIN, WILLIAMSON, AND SALINE COUNTIES ( 1 8I 6tcce ntiaifahisiliiHhi anangi1 AsrMoi;Moif a 5Sun I GAS IN MINES IN SOUTHERN ILLINOIS FIELD. 179 The range of composition in these samples was as follows: Moisture,W to 11 per cent; ash, 6f to 12 per cent; and sulphur, 0.6 to 3£1 l cent; and the heating value varied from 11,079 to 12,144 B. t. u. An average sample from Galatia on the moisture-free basis contained17.46 per cent volatile matter, 48.75 per cent fixed carbon, 13.79 persent ash, and 3.73 per cent sulphur, and had a fuel value of 12,505B. t. u.a Calculated on the ash-free and moisture-free basis, the Murphys-boro coal ranges from 53 to 63 per cent fixed carbon, 4 to 7 per centash, and 0.6 to 2 per cent sulphur. The average heating value offive samples is given at 14,749 B. t. u. (moisture and ash free), thecalorific value of the separate samples ranging from 12,500 to 14,854B. t. u. The coal ranks high as a fuel and much of it is called BigMuddy co

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