Bedrock Geology of Mt. Pleasant Quadrangle, Union and Johnson Counties, Illinois

              Illinois Geologic Quadrangle Map
IGQ Mt. Pleasant-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 1963. Field checked 1966.
North American Datum of 1927 (NAD 27)
Projection: Transverse Mercator
10,000-foot ticks: Illinois State Plane Coordinate system, east and west zones (Transverse Mercator)
1,000-meter ticks: Universal Transverse Mercator grid system, zone 16
Recommended citation:
Nelson, W.J., and J.A. Devera, 2007, Bedrock Geology of Mt. Pleasant Quadrangle, Union and Johnson Counties, Illinois: Illinois State Geological Survey, Illinois Geologic Quad­rangle Map, IGQ Mt. Pleasant-BG, 2 sheets, 1:24,000.
Geology based on field work and data analysis by W.J. Nelson and J.A. Devera, 1994–1995; revised 1997 and 2005.
Digital cartography by J. Domier and M. Widener, 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 Mt. Pleasant-BG Sheet 1 of 2
BEDROCK GEOLOGY OF MT. PLEASANT QUADRANGLE
UNION AND JOHNSON COUNTIES, ILLINOIS
W. John Nelson and Joseph A. Devera
20071°APPROXIMATE MEANDECLINATION, 2007MAGNETIC NORTHTRUE NORTHROAD CLASSIFICATIONPrimary highway,hard surfaceSecondary highway,hard surfaceLight-duty road, hard orimproved surfaceUnimproved roadInterstate RouteState Route
ADJOINING
QUADRANGLES
1 Makanda
2 Lick Creek
3 Goreville
4 Anna
5 Vienna
6 Dongola
7 Cypress
8 Karnak
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
400400"e"ekSG210brÇ15kSymbolsStrike and dip of bedding; number indicates degree of dipApparent or approximate strike and dip of beddingHorizontal beddingOutcrop of special note, shown where contactor map unit was well exposed at time of mappingVertical jointsInclined joints; box on down–dip sideAbandoned stone quarryDrill Holes from which subsurface data were obtained.Water wellEngineering boring from Illinois Department ofTransportationDry hole with show of oilLabels indicate samples (s) or geophysical log (g). Numeric label indicates total depth of boring in feet. Formation at bottom of hole indicated. br = bedrock, formationunidentified. Msl = St. Louis Limestone. D = Devonian.Line Symbols dashed where inferred, dotted where concealed ContactNormal fault: bar and ball on downthrown sideStructure contour on top of Cypress Formation; contour interval 100 feetNote: Well and boring records are on file at the ISGS Geological Records Unit and are available online from the ISGS Web site.QcMcyMrpMavMsgQceMkMdc-fMc-tMc-cMpMmMwvMtsMgdMhMgCahokia FormationMenard LimestoneWaltersburg Formationand Vienna LimestoneTar Springs SandstoneGlen Dean LimestoneHardinsburg FormationGolconda FormationCypress FormationRidenhower Shale and Paoli LimestoneAux Vases FormationSte. Genevieve LimestoneCahokia and Equality FormationsKinkaid LimestoneDegonia Formation and Ford StationMember of Clore FormationCora Member of Clore FormationTygett Sandstone Member of Clore FormationPalestine FormationGEOLOGIC UNITSPleistocene andHoloceneChesterianQuaternaryMississippian0200-100-200500-300400300100600-400700300400100800200-500900200200JNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJNJN"e"e"eG"e"e"e"e"e"e"e"e"e"e"e"e"e"e"e"e"e"e"e"e"e"e"e"e"e"e"e"e"e"e"e"e"e"e"e"eGS"e"e"e"e"e"e"e"e"e"e"eG"e"e"e"e"e"e"e"e"e"e"e"ekk618497468215768314818761053350410538570750720128353845597683115552802683504524006034653034203312932181531231031550646036034080270128179165270152515310577352435560554313282410652819225025055519057068552220MslMcybrMcyMrpMslMsgMrpMslbrMsgMslMslMslMslMslMpMavMslMsgMslMrpbrMcyMcyMhMcyMgMcyMcyMhMcyMcyMcyMrMslMcyMcyMcyMcyMcyMgMgMgMgMhMhMhMgMgMcyMgMcyMhMcyMcyMcyMgMcyMtsbrbrMpMmMmMtsMMhbrbrDÄÄÄÂÂÄÄÄÄÂÂÂÂÄÄoÄÄÂÂÄÄÄo^þþü^þþüeÄ^þþü^þþü^þþü^þþüÄÄ^þþü^þþüoÄÄÄoÄÄoÄÄ^þþü^þþüÄ^þþü^þþü^þþü^þþüÂoÄooeoÄoÄoooooe^þþü^þþüÄeeÂÂoooooeee^þþü^þþü^þþüÄ^þþü^þþüeeÄÄ^þþü^þþüÄoÄÄeÄoÆooooÄo^þþü^þþüooo^þþü^þþüÄÄoÆ5424464235343442241355265233243MmMmQceQceQceQceQceMmMmMmMhMc-cMc-cMc-cMpMpMpMpMc-tQcMpMc-cMc-tQceMc-tQceMdc-fMkMc-cMwvMwvMmQcMmMtsMmMc-tMmMc-tMc-tMgdMwvMwvMmMc-cMtsMtsMtsMmMgdMmMwvMgdMgdMgdMhMmMpMc-tQcMtsMtsMtsQcMmMmMmQcQcMmMtsMmMtsMgQcMwvMgMwvMwvMwvQcMcyMgMgQcQcQcQceQceMwvQceMgdMgdMtsQcMrpMrpMcyQcQcMgdQcQcQcMrpMrpMrpMavQcMvQcQceMsgMavMsgMcyQcMcyMavMavQceQceQceMsgMrpMcyQcMcyMc-cQceMpMpQceQceQceMtsMtsMtsQcMgdMgdMgMhMhMgMrpMcyMcyQceQceQceMgMgMhMcyMcyMhMhMhMgdMm