Edited by James E. Palmer and Russell R. Dutcher - University of ...

f = 80*-90~/45b-55' SEthrow = 16 feet (5 rn)Silty gray shales and argillaceoussiltstoneslaminated sandstones with lenticularbasal conglomerateironstone band in unit Clower Caseyville Formation. ofPennsylvanian Systemmedium dark gray shales=siltybony coal, in and at base ofsiltstones and sandstonesA limestones and argillaceous shales(Menard Limestone Fm.)shales with ironstone band C1 in unit Cor sandy shalesMississippian System1calcareous shales, containinglimestones and argillaceousI imestonesunit A. . . . , . ,siltstones or sandstonesI _ ss = bedding plane (strikeldip, directionof dip)conglomerate with angular fragments;If = fault surface (strikeldip, directionof dip)bony coal of unit B--direction-'faultsof relative movement alongFigure KY-18.ClearRun horst of Rough Creek Fault System. Exposure of folded and faulted Menard Limestone and lower CaseyvilieFormations at Milepost 52 of the Green River Parkway. The major bounding faults of the horst lie outside theexposed sections and trend east-westerly through the upper tributary valleys of the Clear Run Creek. For purposesof this illustration, sections of east and west side of Parkway have been folded outwards away from Parkway.(Figure continues on four pages.)