ML070720645

Map 59, Glacial Deposits of Pennsylvania.

ML070720645
Person / Time
Site:	Susquehanna
Issue date:	12/31/2000
From:	State of PA, Dept of Conservation and Natural Resources
To:	Office of Nuclear Reactor Regulation
ALICIA MULLINS 301-415-1224
References
Download: ML070720645 (1)

Text

Sandandgravelineskers,kames,kameterraces,andoutwash,princi-pallyinvalleys;siltandclayinlake depositsinformerlyice-dammed valleys;lakeclaysandbeachsands andgravelsalongLakeErie;thin (Recent)tothick(lateIllinoian)soils.Thick,gray,clayeytosiltytosandytillcover-ingover75percentof theground;topography ismainlygentlyundu-lating,butthereisalso someknob-and-kettle topography;thinsoil.Moderatelythick,graytogray-ish-red,sandytillcovering25 to50percentoftheground; verythintillcoversanaddi-tional25percentoftheground; topographyreflectstheunder-lyingbedrock;thinsoil.Thin,gray(Titusville)tobrownandgrayish-red(unnamed),clayeytosandytillcover-ing10to25percentoftheground;topog-raphyreflectstheunderlyingbedrock; moderatelythick,well-developedsoil.Thin,gray,clayeytosiltytillinpatchescoveringupto10percentoftheground; topographyreflectstheunderlyingbed-rock;thick,well-developedsoil,commonly havingayellowish-redcolor.WISCONSINAN (17,000-22,000 yrs.)RECENT TO LATE ILLINOIAN (0-198,000 yrs.)LATE ILLINOIAN (132,000-198,000 yrs.)PRE-ILLINOIAN

(>770,000 yrs.)STRATIFIED DRIFTASHTABULA TILL UNNAMED TILLSHIRAM TILLLAVERY TILL KENT TILLOLEAN TILL TITUSVILLE TILL UNNAMED TILLS MAPLEDALE TILLGLACIAL DEPOSITS OF PENNSYLVANIASYMBOLSEXPLANATION MAP 59By W. D. Sevon and D. D. Braun.Second Edition, 1997; Second Printing, 2000.Printed on Recycled Paper 2200-MP-DCNR3027COMMONWEALTH OF PENNSYLVANIADEPARTMENT OFCONSERVATION AND NATURAL RESOURCESBUREAU OF TOPOGRAPHIC AND GEOLOGIC SURVEYwww.dcnr.state.pa.us/topogeo ERIECRAWFORDWARREN McKEANPOTTER TIOGA VENANGO FOREST MERCERLAWRENCEBUTLERBEAVER ALLEGHENYARMSTRONG WESTMORELANDWASHINGTON GREENEFAYETTE CLARION JEFFERSON INDIANA CLEARFIELD CENTRE ELKCAMERONCLINTONLYCOMING UNION SNYDER CAMBRIA BLAIR HUNTINGDON SOMERSETFULTON BEDFORD FRANKLINADAMSYORK CUMBERLANDPERRYJUNIATA MIFFLINDAUPHIN LEBANONNORTHUMBERLANDMONTOUR LANCASTER CHESTERDELAWAREMONTGOMERYBUCKS BERKS SCHUYLKILL LEHIGHNORTHAMPTON CARBONMONROE COLUMBIA LUZERNEWYOMING PHILADELPHIASULLIVAN PIKELACKAWANNAWAYNE BRADFORDSUSQUEHANNA 79°77°76°75°75°78°80°79°77°78°76°40°80°41°42°40°75°75°42°41°SCALE 0 10 20 30 40 50 MI 0 20 40 60 80 KMN.Y.N.Y.N.Y.N.J.MD.DEL.N.J.W.VA.MD.OHIOW.VA.LAKE ER IESouthern limit of gla-cial advanceApproximate limit ofpre-Illinoian advanceApproximate limit ofIllinoian advance DELAWARE RIVER