ML070720645
| 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
Sand and gravel in eskers, kames, kame terraces, and outwash, princi-pally in valleys; silt and clay in lake deposits in formerly ice-dammed valleys; lake clays and beach sands and gravels along Lake Erie; thin (Recent) to thick (late Illinoian) soils.
Thick, gray, clayey to silty to sandy till cover-ing over 75 percent of the ground; topography is mainly gently undu-lating, but there is also some knob-and-kettle topography; thin soil.
Moderately thick, gray to gray-ish-red, sandy till covering 25 to 50 percent of the ground; very thin till covers an addi-tional 25 percent of the ground; topography reflects the under-lying bedrock; thin soil.
Thin, gray (Titusville) to brown and grayish-red (unnamed), clayey to sandy till cover-ing 10 to 25 percent of the ground; topog-raphy reflects the underlying bedrock; moderately thick, well-developed soil.
Thin, gray, clayey to silty till in patches covering up to 10 percent of the ground; topography reflects the underlying bed-rock; thick, well-developed soil, commonly having a yellowish-red color.
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 DRIFT ASHTABULA TILL UNNAMED TILLS HIRAM TILL LAVERY TILL KENT TILL OLEAN TILL TITUSVILLE TILL UNNAMED TILLS MAPLEDALE TILL GLACIAL DEPOSITS OF PENNSYLVANIA SYMBOLS EXPLANATION MAP 59 By W. D. Sevon and D. D. Braun.
Second Edition, 1997; Second Printing, 2000.
Printed on Recycled Paper 2200-MP-DCNR3027 COMMONWEALTH OF PENNSYLVANIA DEPARTMENT OF CONSERVATION AND NATURAL RESOURCES BUREAU OF TOPOGRAPHIC AND GEOLOGIC SURVEY www.dcnr.state.pa.us/topogeo ERIE CRAWFORD WARREN McKEAN POTTER TIOGA VENANGO FOREST MERCER LAWRENCE BUTLER BEAVER ALLEGHENY ARMSTRONG WESTMORELAND WASHINGTON GREENE FAYETTE CLARION JEFFERSON INDIANA CLEARFIELD CENTRE ELK CAMERON CLINTON LYCOMING UNION SNYDER CAMBRIA BLAIR HUNTINGDON SOMERSET FULTON BEDFORD FRANKLIN ADAMS YORK CUMBERLAND PERRY JUNIATA MIFFLIN DAUPHIN LEBANON NORTHUMBERLAND MONTOUR LANCASTER CHESTER DELAWARE MONTGOMERY BUCKS BERKS SCHUYLKILL LEHIGH NORTHAMPTON CARBON MONROE COLUMBIA LUZERNE WYOMING PHILADELPHIA SULLIVAN PIKE LACKAWANNA WAYNE BRADFORD SUSQUEHANNA 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 KM N. Y.
N. Y.
N. Y.
N. J.
MD.
DEL.
N. J.
W. VA.
MD.
LAKE ERIE Southern limit of gla-cial advance Approximate limit of pre-Illinoian advance Approximate limit of Illinoian advance DELAWARE RIVER