University of KentuckyUKnowledge

Kentucky Geological Survey Map and Chart Kentucky Geological Survey

2017

Kentucky Stratigraphy with Stage CorrelationsStephen F. GrebUniversity of Kentucky, greb@uky.edu

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This Map and Chart is brought to you for free and open access by the Kentucky Geological Survey at UKnowledge. It has been accepted for inclusion inKentucky Geological Survey Map and Chart by an authorized administrator of UKnowledge. For more information, please contactUKnowledge@lsv.uky.edu.

Repository CitationGreb, Stephen F., "Kentucky Stratigraphy with Stage Correlations" (2017). Kentucky Geological Survey Map and Chart. 209.https://uknowledge.uky.edu/kgs_mc/209

Western Kentucky (Illinois Basin)

Central Kentucky (Cincinnati Arch)

Eastern Kentucky (Appalachian Basin)

Western Kentucky (Mississippi Embayment)

QuaternaryPaleogene & Neogene & CretaceousPennsylvanian

Mississippian

DevonianSilurianOrdovician

Legend

Arkose

Unconformity (Triassic, Jurassic, and Lower to Middle Cretaceous strata are absent in Kentucky)

International Stage

North American Stage European

Stage

Syst

em Western Kentucky (Mississippi Embayment)

Rock UnitsSerie

s (E

poch

)

Era Western Kentucky

(Illinois Basin)Rock Units

Central Kentucky (Cincinnati Arch)

Rock Units

Eastern Kentucky (Appalachian Basin)

Rock UnitsInternational

Stage Nort

h Am

eric

an

Stag

eWestern European

StageSyst

em Western Kentucky (Mississippi Embayment)

Rock UnitsSerie

s (E

poch

)

Era Western Kentucky

(Illinois Basin) Rock Units

Central Kentucky (Cincinnati Arch)

Rock Units

Eastern Kentucky (Appalachian Basin)

Rock Units

Neo

gene

0

10

Low

erM

iddl

e

20

23

Holocene

2.6

Mio

cene

Piacenzian

ZancleanBlancan

Hemphillian

Upp

er

ZancleanPiacenzian

Clarendonian

Barstovian

Hemingfordian

Arik

aree

an

Messinian

Tortonian

Serravallian

Langhian

Burdigalian

Aquitanian

Messinian

Tortonian

Serravallian

Langhian

Burdigalian

Aquitanian

5.3

Pleistocene

Pliocene

Quarter-nary

ciozoneC

Pale

ogen

e)yraitreT fo trap ylsuoiverp(

Priabonian

Rupelian

Lutetian

Whitneyan

Ypresian

Bartonian

Upp

er

Chattian

Olig

ocen

eEo

cene

Low

er

Thanetian

Selandian

Danian

Low

erM

iddl

eM

id.

Upp

erU

pper

Orellan

Chadronian

Duchesnean

Uintan

Bridgerian

Wasatchian

Clarkforkian

Tiffanian

Torrejonian

PuercanLow

erPale

ocen

e

66

Cam

pani

an

Maastrichtian

Coniacian

Cenomanian

Turonian

Anah

uac

Cla

ibor

nian

Sabi

nian

Mid

way

an

Santonian

Cre

tace

ous

Upp

er

ciozoseM

Gul

fian

Nav

arro

anTa

ylor

anAu

stin

ian

Eagl

efor

dian

See Holocene-Pleistocene detail (larger scale)

Wilcox Fm.

Priabonian

Rupelian

Lutetian

Ypresian

Bartonian

Chattian

Thanetian

Selandian

Danian

Maastrichtian

Cam

pani

an

Coniacian

Cenomanian

Turonian

Santonian

33.9

30

40

50

60

70

80

90

Porters Creek Clay

Clayton Formation

Perm

ian

252

Wuchiapingian

Changhsingian

Wordian

Roadian

Artinskian

Sakmarian

Asselian

Tata

rian

Kazanian

Ochoan

Gua

dalu

pian

Leonardian

Wol

fcam

pian

Kungurian

Low

erM

iddl

eU

pper

Capitanian

ciozoelaP

Lopi

ngia

nG

uada

lupi

anC

isur

alia

n

Artinskian

Sakmarian

Asselian

Kungurian

359

suorefinobraC re

woLM

issi

ssip

pian

Mid

dle

Low

er

541540

530

520

510

500

485

490

480

470

460

450

430

420

410

400

390

380

370

Pencil Cave (Deicke) K-bentonite

Everton Do.

Kimmswick Ls.

Joachim and Dutchtown Fms.

undividedSt. Peter Ss.

AshgillianHirnantian

Katian(Ordovician VI)

Car

adoc

ian

Sandbian(Ordovician V)

LlanviranDarriwilian

Dapingian(Ord. III)

Upp

erM

iddl

eLo

wer

Ord

ovic

ian

Floian(Arenigian,

Ordovician II)

Aren

ig

Tremadocian(Gasconadian, Ordovician I)

Roubidoux Do.

Gasconade Do.

Jefferson City Do.

Cotter Dolomite

Juniata Fm.

burg Fm.Trenton Ls.

High Bridge Group (Black River Group)

Lexington Ls.Tyrone Ls./Oregon Fm.

Camp

Ferry Fm.

Cumber-land Fm.Leipers Fm.

Clays Ferry Fm.

Grant Lake Ls.

St. Peter Ss.St. Peter Ss. St. Peter Ss.

Rose Run Ss. Rose Run Ss.

Beek-mantownDolomiteGunter Ss. Gunter Ss.Be

ekm

anto

wn

Gp.

BeekmantownDolomite

Oneota Do.

Shakopee Dolomite

Dutchtown Fm.

Stage10

Jiangshanian

Paibian

Furo

ngia

n

Upp

erSe

ries

3

Mid

dle

Guzhangian

Drumian

Stage 5

Stage 4

Stage 3Serie

s 2

Low

erTe

rrene

uvia

n

Stage 2

Fortunian

Milla

rdan Su

nwap

tan

Step

-

Linc

olni

an Mar

jum

ian

Maryville Ls.

Delamaran

Dyeran

Valley Sh.

Rogersville Sh.

Rome

?

“Basal Sandstone”

“Basal Ss.”Mount Simon Ss.

Mount Simon Ss.

?

Rome TroughWau

coba

n

unna

med

Cam

bria

n

Mer

ione

thSt

. Dav

id’s

Cae

rfai

Eminence Dolomite

Potosi Dolomite

Elvins Fm.

Trem

p-

Silu

rian

Pale

ozoi

c

56

Plei

stoc

ene

Middle (Ionian)

Early

Mid

dle

Calabrian

Illin

oian

Irvin

gton

ianSicilian

Tyrrhenian

Qua

tern

ary

Upper (Tarantian)

Gelasian

Blan

can Pr

e-Ill

inoi

an

Late

Hol

o-ce

ne

Cen

ozoi

c

0

1.0

2.0

2.59

Lower levels formed

Upper levels formedMammoth Cave

Peoria loessMost of Kentucky’s

floodplain sediments (alluvium) are less than

10,000 years old

Ohio River in its present valley

Old Kentucky River fluvial deposits

Irvine Fm.??

?Calabrian

Gelasian

Mount Simon Ss.

Rough Creek Graben

Near Tennessee:

Kingsport Do.

Near Tennessee:

Mascot Do.Kingsport Do.

Longview Do.

Rutledge Ls.

Shady Do.

Missing time (from erosion or nondeposition)

Unconformable contact Absolute age (line shows error range)Conformable contact

Uncertain contact (age or correlation uncertain)

Formal unit names are capitalized

“Unit Names” in quotation marks are formal units from bordering states that occur, or may occur, in Kentucky, but are not officially recognized in Kentucky

Abbreviations for Formal Unit Names Explanation of SymbolsLegend

Informal unit names are lowercase

Significant named bed Correlation that may be younger (up arrow) or older (down arrow) than shown

? ?

?

Drakes Fm.

Ohio River floodplain sediments

(alluvium) are 0 to 20,000 years old ?

Calloway Ck. Fm.

“U. O

rdov

icia

n”

undi

vide

d in

su

bsur

face

Grant Lake Ls.

?

?

?

?

Jackson Fm.

Cla

ibor

ne F

m. (

Gp.

)

Jack

son

and

Cla

ibor

ne F

ms.

un

divi

ded

“Sparta Fm.”

“Tal

laha

taFm

.”

McNairy Fm.

Fm.”

Fm.”

“CookMountain

Chickasawayan

Rancho-labrean

(Older down-stream to west)

Kope Fm.

none

toea

n

zumanMonte-

(and regional substages)

Big Bone Lick fossils (mostly less than 10,600 years old)

Bull Fork Fm.

International Stage

North American

Stage

Western Kentucky (Mississippi Embayment)

Rock UnitsSerie

s (E

poch

)

Era Western Kentucky

(Illinois Basin) Rock Units

Central Kentucky (Cincinnati Arch)

Rock Units

Eastern Kentucky (Appalachian Basin)

Rock Units

419420

410

400

390

380

370

360

OriskanySandstone

OnondagaLimestone

Flat Gap Limestone

Ohi

o Sh

aleThree Lick Bed

.

DowelltownMember

(of Chattanooga Sh.)

Lochkovian Gedinnian

Pragian Siegenian

Low

erM

iddl

e

Uls

teria

nSe

neca

nC

haut

auqu

an

Unnamed K-bentonite,ChattanoogaShale, inTennessee

Tioga “B” K-bentonite,OnondagaFormation,VirginiaClear

Creek Limestone

Berea Ss.Bedford Sh.

Dev

onia

n

Frasnian Frasnian New

Alb

any

Shal

e

New

Alb

any

Shal

e

(of New Albany Sh.)

Flat Gap Ls.

Cle

ar C

reek

Ls.

?

?

(upper)

?

Upper

Middle

Lower

Hannibal Member

Upp

er

Grand Tower

Ls.

Hel

derb

ergi

an

Cle

gg C

reek

M

embe

r

Morgan

Givetian Givetian

Eifelian Eifelian

Emsian Emsian

Camp Run Gassaway

Mbr. (of Chattanooga Sh.)

Cas

sada

gan

Substage

Eria

n Boyle Do.

Salina Dolomite

Bailey Limestone

(of New Albany Sh.)

Marcellus Shale

444

?

HelderbergLimestone

Grassy Knob Chert

Cle

ar C

reek

Che

rt

none(P

revi

ousl

y U

pper

)

Pridoli

Ludlow

Nia

gara

nWenlock

Gorstian

Homerian

Llan

dove

ryTelychian

Wen

lock

St. Clair Limestone

M.

L.

U.

?

?

Dixon Ls.

Aeronian Alexandrian

Cayugan

Rhuddanian

?

Bailey Limestone

Moccasin Springs Fm.

Lego Ls.

?

Waco Ls. Mbr.

Estill Shale Mbr. of Crab Orchard Fm.

Keefer Ss.

Lockport Dolomite

St. Clair Limestone

Moccasin Springs

Fm.

Lulbegrud Sh. Mbr.Clin

toni

an

??

?

? Plum Creek Sh. Mbr. Oldham Ls. Mbr.

Brassfield Do. Tuscarora Sandstone

?

Ros

e H

ill Sh

.Al

ger S

hale

Cra

b O

rcha

rd F

m.

? Drowning Creek Fm.

Brassfield Mbr. of Drowning Creek Fm.

? 430

440

(Pre

viou

sly

Low

er)

Dutch Creek Ss.

Lee Creek Mbr.

Brassfield Do.Sexton Creek Ls.

Waldron Sh.

Laurel Do.Osgood Fm.

Syst

em

?

?

Condensed section(little deposition over

very long time)

Western European

Stage

359

KentuckyWestern

Fluorspar District igneous

intrusions

Elliott County igneous intrusion

323

Che

ster

ian

prev

ious

ly V

alm

eyer

an

Mer

a-m

ecia

nO

sage

anKi

nder

-ho

okia

n

Elviran

Gasperian

Genevievian

Tour

nais

ian

Serpukhovian

Visean

(A)

prev

ious

ly D

inan

tian

Tour

nais

ian

?

Visean

Hombergian

Hannibal Sh.Mbr., New Albany Sh.

Jacobs Chapel

bed

“Mau

ry S

h.”

?

?

?

Fort

Payn

e Fm

.

Sunbury Shale

Jacobs Chapel bed equivalent

?

?

Hen

ley

bed

Nancy Nada Mbr.Cowbell Mbr.

?

Mbr.

Bord

en F

orm

atio

n

Salem-Warsaw Fms.

(undivided)

Salem Ls.

Renfro Mbr. (of Slade

or Borden Fm.)

Sale

m-

War

saw

Fm

s.

?

?

St. Louis Ls.

Golconda Fm.

Paoli Ls.Paint Creek Ls.

Renault Ls.

Burnside Mbr. (Slade Fm.) or St. Louis Mbr. (Newman Ls.)

Renault Ls.

Pine Mountain and near Virginia

Slad

e Fm

.

Muldraugh

Harrods-

New Providence Shale Mbr.

(Borden Fm.)

Floyds Knob bed

?

St. Louis Ls.

Ste. Gen.

Mont-eagle

Ls. Ls. Mbr.

Girkin KidderLs. Mbr.

In SE-SC Ky.Wallow Fm.Buffalo

Leitchfield Fm.

Poppin Rock Mbr.Maddox Br. Mbr.

Ramey Creek Mbr.Tygarts Creek Mbr.,Holly Fork Mbr., Armstrong Hill Mbr.,& Cave Br. BedMill Knob Mbr.

Run Mbr.

Slade Mbrs. (NE Ky.)

Warix

Paragon Fm.

?

Fort Payne Fm. (Chert) or Maccrady Fm. (on Pine Mountain)

burg Ls.

Tar Springs Ss.

Waltersburg Fm.

Big Clifty Ss.Beech Creek Ls.

Kinkaid Ls.Menard Ls.

Vienna Ls.

Glen Dean Ls.Hardinsburg Ss.

Haney Ls.

?

?

?Falling Run bed

New Providence Sh.

?

?

Gassaway Member, Chattanooga Shale

equi

vale

nt

New

Pro

vide

nce

Shal

e (p

art)

Cypress Ss.

Bethel Ss. Aux Vases Ss.

Upp

er

Upp

er

suorefinobraC

Gzehlian

Kasimovian

Moscovian

Bashkirian

ania

nol

d W

estp

halia

n

Virgilian

Atokan

Morrowan

Penn

sylv

ania

n

(C)

A

C

Upp

erM

iddl

e

Missourian

Yeadonian(A) ?

Low

er

299

McL

eans

boro

Gp.

Desmoinesian

Rac

coon

Cre

ek G

roup

?

Pikeville Fm.Hyden Fm.

Fire Clay coal

tonstein

Lower Banner

coal tonstein

Carbondale Fm.

Autunian

Canta-Step

h-

(D)?

?

?

?

?

??

U-Pb

U-Pb

Ar/Ar

? Traditional U.S. position

Corbin Ss.

Sewanee Ss. and Bottom Creek Fm.

Livingston Cgl.

Warren Point Ss.

Alvy Creek Fm.Bee Rock Ss.

(C)

(B)

(B)

MarsdenianKinderscoutian

AlportianChokierian

?

260

280

100.5

340

350

300

310

320

290

Tremadocian

Stai

rsia

nSk

ullro

ckia

nJe

ffer-

Cas

sini

an

Rangerian

Rocklandian

Shermanian

Moh

awki

an

Black

Cin

cinn

atia

n

MaysvillianEdenian

Richmondian

Gamachian

Turin

ian

Kirkfieldian

Whi

tero

ckia

n

Cha

zyan

unna

med

Ibex

ian

Knox

Sup

ergr

oup

Knox

Sup

ergr

oup

Knox

Gro

up

?

Knox

Gro

up

?

Gas

cona

dian

Dem

ingi

an

541

1,000

Ediacaran

Cryogenian

Tonian

Stenian

Ectasian

Calymmian

Neo

prot

eroz

oic

Mes

opro

tero

zoic

Change in time scale

1,200

1,400

System

East Continent Rift Basin

SystemEra

635

850

1,600

(“Mem

phis

san

d”)

Rockford Ls.

Fort Payne Formation

Warsaw Fm.

GroveDegonia Fm.Clore Ls.

Palestine Fm.

Sellersburg Ls.

Jeffersonville Limestone

Backbone Limestone

Maquoketa Shale

Nelson Gp.

Precambrian Unconformity

?

Powell Do.Smithville Fm.

“upper Knox”

undivided

prev

ious

ly C

anad

ian

Ser

ies

prev

ious

ly S

t. C

roix

anS

erie

spr

evio

usly

Cha

mpl

aini

an S

erie

s

“upper Knox”

Black Rock Mbr.

??

?

“Cockfield

Loveland loess Roxana silt“Metropolis Fm.”

?

The “Mounds Gravel” may be as young as the Early Pleistocene

?

?

(The Tuscaloosa Formation in western

Kentucky may be younger than at its

type location)

“Mounds Gravel” (Lafayette Gravel,

continental deposits)

Grainger Formation (on Pine Mountain)

Ashlock Fm.

Pt. Pleasant tongue

Lexington Ls.

Clays Ferry or Kope Fm.

“Coffee sand”?

Mid

way

“Owl Creek Fm.”

McN

airy

Fm

.

Cla

yton

and

McN

airy

“Post Creek Fm.”

?

?(The McNairy Formation of western Kentucky may

contain some of the Coffee sand and Post Creek Formation of bordering states)

?

See Holocene-Pleistocene detail (larger scale)

0

PrecambrianCambrianOrdovician

MississippianPennsylvanianPaleogene, and

Neogene,

Cretaceous PennsylvanianDevonian

SilurianDevonian

SilurianMississippian

Ordovician Cambrian

Ordovician 0

+3,000

Elev. (ft)

Elev. (ft)

Llan

dove

ryPr

idol

iLu

dlow Ludfordian

Mud Cave (Millbrig) K-bentonite

Vick

s-bu

rgia

nJa

ck-

soni

an

International position

B

Reelsville Ls.Sample Ss.

Beaver Bend Ls.

brian

PaintCreek

Ls.

Gol-conda

Fm.

Ste. Genevieve Ls.

Han

niba

l Sh.

M

br.,

New

Al

bany

Sha

le

Ste. Gen. Ls. Mbr.Fm.

Hartselle Fm.Bangor Ls.

Pennington Fm.Pennington Fm./Gp.

Carter

Ss.Caves

“Stony Gap Mbr.”

“Bramwell Mbr.”

“Little Stone Gap Mbr.”

“Pride Sh. Mbr.”“Bluestone

Fm.”

“HintonFm.”

Grundy Fm.

No units subdivided in the deeper part of

the Rough Creek Graben above the Reelfoot Arkose

Martins-

Cha

t-fie

ldia

n

Riveran

Che

pul-

tepe

cD

o.

Che

pul-

tepe

cD

o.

Fran

coni

an

FairviewFm.

Drakes Fm.

Lock-portian

Sheinwoodian(Pre

viou

sly

Mid

dle)

BridgeHigh

Gp.BridgeHigh

Group

??

Wis

con-

sina

nSa

ngam

onia

n

Pre

viou

sly

part

of T

ertia

ry

Pre

viou

sly

part

of P

lioce

ne

Gla

cial

stag

esSu

b-

Million years ago

Million years ago

Million years ago

Asturian

Bols

ovia

n

mantianDuck-

Langsettian

Rockford Ls.

Maynardsville Ls.

Nolichucky Shale

? ?

Dre

sbac

hian

Mascot Do.

?

?

?

?

Cinc

inna

ti Ar

ch

eale

auan

Top-

azan

?

Pumpkin

Fm.

?

Wav

erly

Arc

h??

??

Tule

an

?

Blac

k-

?

soni

an

hills

ian

Longview Do.

?

?

Gren

ville

Fro

nt

ClaysGarrard Slt.

?

? ?

?

?

?

??

? ?

Italicized unit names are significant beds or the equivalents of units that were not officially mapped in a region

?

Gren

ville

Fro

nt

?

Eastern Granite-Rhyolite Province(igneous crust)

Grenville Metamorphic

Province (metamorphic and

igneous crust)

?

Reelfoot Arkose

Surface and generalized subsurface distribution of rock-unit systems in Kentucky. Regions shown on map correspond to regions on stratigraphic chart.

This stratigraphic chart shows correlations of Kentucky rock units scaled to the International Commission on Stratigraphy time scale (Gradstein and others, 2012; Cohen and others, 2013). Rock-unit names for four general geologic regions of the commonwealth are provided: the Mississippi Embayment, Illinois Basin, Cincinnati Arch, and Appalachian Basin. Rock-unit names and correlations are updated from data collected for the Correlation of Stratigraphic Units of North America project (Patchen and others, 1984; Shaver, 1984), which was the last comprehensive correlation of Kentucky’s rock-unit stratigraphy. Data on Quaternary sedi- mentary units are also included. This update is in response to changes to some of Kentucky’s bedrock nomenclature, correlations of units, and changes in the geologic time scale (series and stage correlations and dates) since the COSUNA charts were published. The age of most units shown is relative and based on stratigraphic correlation. Numeric ages and correlations are subject to change, which is why periodic updates are needed to stratigraphic charts. More information concerning individual rock units, geologic time, and references can be found at the Kentucky Geological Survey website (www.uky.edu/KGS).

Cohen, K.M., Finney, S.C., Gibbard, P.L., and Fan, J.-X., 2013, The ICS international chronostratigraphic chart: Episodes, v. 36, no. 3, p. 199–204.

Gradstein, F.M., Ogg, J., Schmitz, M.A., and Ogg, G., 2012, A geologic time scale 2012: International Commis-sion on Stratigraphy, www.stratigraphy.org [accessed 12/2014].

Patchen, D.G., Avary, K.L., and Erwin, R.B., coords., 1984, Southern Appalachian Region: American Associa-tion of Petroleum Geologists, COSUNA Project, 1 sheet.

Shaver, R.H., coord., 1984, Midwest Basins and Arches Region: American Association of Petroleum Geologists, COSUNA Project, 1 sheet.

Nam

uria

n

Church Sh.

?

?

Tuscaloosa Fm.

Gre

nvill

e cr

ust

Gra

nite

-Rhy

olite

cru

stM

iddl

e R

un F

m.

Cleveland Shale Mbr.

“reef ls.” (Ft. Payne Fm.)

(Che

mun

gian

)C

ohoc

ton

Esop

usia

n

Pre

viou

sly

One

sque

thaw

an

DeerParkian

lakesianFinger-

Cone-wangoan

TaghanicTioughniogan

Sout

h-

(Bradfordian)

Cazenovian

woo

dian

Upper Olentangy Shale

RhinestreetShale

Hur

on S

hale

Mbr

.

Portwood Mbr.

(lower)

Grassy Knob Limestone

Beechwood Mbr.Silver Creek Mbr.

Swee

tland

Cre

ek M

br.

Bloc

her M

br.

?

?

?

? ?

?

Duffin bed

Portwood Mbr.

Blocher Mbr.

Creek Member

Mbr.

TrailMember

?

?

Bisher Do.

Louisville Ls.

Brownsport Fm.Lobelville Mbr.Bob MemberBeech River Mbr.

Decatur Ls.

Crab Orchard Fm.

Wells CreekWells Joachim Do.

Plattin Ls.

Bull Fork Fm.

Belfast Mbr. (of Brassfield Do.)

Pecatonica Ls.Pecatonica Ls.

CreekDolomite Dolomite

Wells CreekDolomite

Con

asau

ga G

roup

Run Fm.Middle

Rockford Ls.

Salem Ls.Newman Ls.

Caseyville Fm.

Tradewater

Mauzy Fm.

Mattoon Fm.Conemaugh and

Conemaugh

PrincessFormation

FormationFour

Brea

thitt

Gp.

CornersFormation

Fms. (undivided)Monongehala

Bond Fm.Patoka Fm.

Shelburn Fm.

Formation

Gro

up

Fms.

(und

ivid

ed)

Member(Borden Fm.)

Farmers Mbr.

Plattin Ls.

Conasauga Sh.

Eau ClaireFormation

Eau ClaireFormation

Eau ClaireFormation

CopperRidge

Dolomite

CopperRidge

Dolomite

CopperRidge

Dolomite

Grassy

(in s

outh

-cen

tral K

y.)

(in c

entra

l and

eas

t-cen

tral K

y.)

New

Alb

any

Shal

eC

hatta

noog

a Sh

ale

SelmierMember

ShaleSh.

SandstoneSs. Slt. Siltstone

Do. DolomiteCgl. Conglomerate

Formation

Limestone

Fm.

Mbr. Member

Ls. GroupGp.

Famennian Famennian

Kentucky StratigraphyWith Stage Correlations

Compiled by Stephen F. Greb

1,500

1,300

1,100

900

600

700

800

Western Kentucky Fluorspar

District dikes

Elli

ott C

ount

y ki

mbe

rlite

Clayton Formation in southern

Illinois

Owl Creek Formation in southern

Illinois

Covington

AshlandFrankfort

Lexington

Louisville

Bowling Green

Hopkinsville

Owensboro

PaducahLondon

Middlesboro

Pikeville

39°

38°

37°

82°83°84°85°86°87°88°89°

Explanation

0 50 miscale

AlluviumNeogene, Paleogene,and CretaceousPennsylvanian

Mississippian

Devonian

Silurian

Ordovician

Fault

North

Western Kentucky (Illinois Basin)

Central Kentucky (Cincinnati Arch)

Eastern Kentucky (Appalachian Basin)

Western Kentucky (Mississippi Embayment)

Explanation

References Cited

KENTUCKY GEOLOGICAL SURVEYWilliam C. Haneberg, State Geologist and Director

UNIVERSITY of KENTUCKY, Lexington

MAP AND CHART 210Series XII, 2017

Mau

ry F

m.?

equi

vale

nt

–5,000–5,000

Statement of Benefit to Kentucky. This stratigraphic chart helps to show the rock units and their ages occurring in different parts of Kentucky. It also helps with correlations of units into other states and countries.

https://doi.org/10.13023/kgs.mc210.12