Bedrock Geology of Herrin Quadrangle, Williamson and Franklin Counties, Illinois

              Illinois Geologic Quadrangle Map
IGQ Herrin-BG
Base map compiled by Illinois State Geological Survey from digital data provided by the United States Geological Survey. Topography by photogrammetric methods from aerial photographs taken 1965. Field checked 1968. Revision from aerial photos taken 1976. Map edited 1978.
North American Datum of 1927 (NAD 27)
Projection: Transverse Mercator
10,000-foot ticks: Illinois State Plane Coordinate system, east zone (Transverse Mercator)
1,000-meter ticks: Universal Transverse Mercator grid system, zone 16
Recommended citation:
Nelson, W.J., 2007, Bedrock Geology of Herrin Quadrangle, Williamson and Franklin Coun­ties, Illinois: Illinois State Geological Survey, Illinois Geologic Quadrangle Map, IGQ Herrin-BG, 2 sheets, 1:24,000.
Geology based on field work and data analysis by W.J. Nelson, 2001–2003.
Digital cartography and graphics by J. Domier, T. Goeppinger, M. Widener, M. Jones,
L. Verhelst, and S. Geegan, Illinois State Geological Survey.
The Illinois State Geological Survey, the Illinois Department of Natural Resources, and the State of Illinois make no guarantee, expressed or implied, regarding the correctness of the interpretations presented in this document and accept no liability for the consequences of decisions made by others on the basis of the information presented here. The geologic interpretations are based on data that may vary with respect to accuracy of geographic location, the type and quantity of data available at each location, and the scientific and technical qualifications of the data sources. Maps or cross sections in this document are not meant to be enlarged.
IGQ Herrin-BG Sheet 1 of 2
BEDROCK GEOLOGY OF HERRIN QUADRANGLE
WILLIAMSON AND FRANKLIN COUNTY, ILLINOIS
W. John Nelson
20071°APPROXIMATE MEANDECLINATION, 2007MAGNETIC NORTHTRUE NORTHROAD CLASSIFICATIONPrimary highway,hard surfaceSecondary highway,hard surfaceLight-duty road, hard orimproved surfaceUnimproved roadState Route
ADJOINING
QUADRANGLES
1 Elkville
2 Christopher
3 West Frankfort
4 De Soto
5 Johnston City
6 Carbondale
7 Crab Orchard Lake
8 Marion
BASE MAP CONTOUR INTERVAL 10 FEET
NATIONAL GEODETIC VERTICAL DATUM OF 1929
For more information contact:Illinois State Geological Survey 615 East Peabody Drive
Champaign, Illinois 61820-6964
(217) 244-2414
http://www.isgs.uiuc.edu12345678
Released by the authority of the State of Illinois: 2007
7000
FEET10001000020003000400050006000.51 KILOMETER10SCALE 1:24,0001/2101 MILE
Illinois Department of Natural Resources
ILLINOIS STATE GEOLOGICAL SURVEY
William W. Shilts, Chief
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sp&csmp s h hc PennsylvanianCarbondale Formation h, Herrin Coal Member s, Springfield Coal Member hc, Houchin Creek Coal MemberShelburn and Patoka Formations undivided p, Piasa Limestone MemberDesmoinesianEXPLANATIONSurface mine·425425AA"e"e210kCSG*"ekª»¿Note: This is a subcrop map, showing bedrock surface with all Quaternary deposits removed. Geology shown as it was prior to surface mining. Faults are shown where they intersect the Herrin Coal. Well and boring records are on file at the ISGS Geological Records Unit and are available online from the ISGS Web site. SymbolsDrift mineShaft mineSlope mineDrill Holes from which subsurface data were obtainedWater wellCoal boringOil wellDry holeDry hole - show of oilGas well (gas from abandoned coal mines)Numeric label indicates total depth of boring in feet.Boring with samples (S), geophysical log (G), or core (C).Dot indicates location accurate within 100 feetLine Symbols dashed where inferred, dotted where concealed Contact or coal subcropNormal fault: bar and ball on downthrown sideFault, type unknown: ticks on downthrown sideStrike-slip faultElevation of top of Herrin Coal, contour interval 25 feetLine of cross sectionJNJNJNJNJN··········NJNJNJNJNJNJN·······JNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJN··JN········JNJ2502002253752502002502252002252253752002502752003502002503503004003254254254004501752751751501751251501001501751501501251501517517517527550507575225225175150150225200250250100150200200150175125200225175175175200AA􀀁􀆻»»»»»¿»»»»»»»¿»¿»¿»»»»¿»»¿»»¿¿»»»»»¿¿¿»¿¿¿¿¿¿¿¿»¿¿»¿¿»»»»»»»»»»»»¿¿¿»¿¿»»¿»»¿¿¿»ÜªG"eܪG"e"ek"eܪGkG''ܪGkG"e"e"ekG"e*ÜܪGSkGܪG"ekGkGܪGS"e"e"e"e"eܪGkG"ekGkG"eܪ"eܪGkG"e"e"e"e"eܪ"e"XC"e"e"e"e"ekG''ܪG"e"e"e"e"e"e"e"e"e"eܪG"e"k"k"k"k"e"eܪG"kC"eܪ"XC"eªG"eªGªGªG"e"e"k"kªS*ªGªS25352182505278327492872810279027703912857295772701237100025284304282346464510775012525081115191208057896442839384640243024602402500376695933187268160170317018013510313026052660147253325726052610229259026121000170184180178197927602700238274227302661207217400154217502266926092604262526362630194255214617026411362522hhsppppssshhhppphcCOTTAGE GROVEFAULTSYSTEM&sp&sp&sp&c&c&c&c&c&c&c&sp&sp&sp&spsmsmsmsmsmsmsmsmsmsmsm&sp&sp&sp&sp