STRATIGRAPHIC COLUMN

Ma SystemSeries

andStage

Map Unit NotesMap Symbol

Plate Tectonic Setting

DepositionalEnvironment

Dominant Rock Typeand Weathering Profile

Thicknessfeet meters

Intrusive units andadditional lumped units40Ar/39Ar ages

Qua

tern

ary

Hol

ocen

ean

dP

leis

toce

ne

1.8

5.3

11.6

16.0

23.0

28.4

33.9

65.5

99.6145.5

175.6

199.6

228.0

251.0

299.0

318.1

359.2

416.0

501.0

542.0

513.0

Surficial depositsand

basaltic lava flowsVariousQ, QT

Plio

cene

low

er a

nd u

pper Basin-fill

sedimentaryrocks

MuddyCreekFm.

young rhyolite and dacite lava

flowsold boulder gravel depositsup

per

mid

dle

middle rhyolite and dacite lava

flows

Ox Valley TuffKane Wash Tuff

Ts

Qb

Tb

TmcbTmc

Trdy

Trdm

To 400030

1500

1100

1600 500

250 75

160 50

335

450

200 60

101200

Tkw

Tag 30 9

3000

+15

00+

450+

900+

500

150

400-1400

120-400

Racer CanyonTuff

Pine ValleyLatite

RencherFormation

Rocks of Paradise Tpa

Tqh 500 150

500 150

Tqc 330 110

Tql

Tcu

Tcl

TKg

TKcp

2000 600

Tc

Tw

Ti

50

520

1090

330

300-

1 600

90-4

901 6

0

15

600 180

Tq

Tiw

600 180

Tre

Tr

Tpr

Tpv

Ta

Tgb

Tcv

Sedimentary Rocks ofPage Ranch

low

erM

ioce

ne

Terti

ary

Cre

tace

ous

Jura

ssic

riass

icT

erm

ian

P

divi

ded

a fl o

ws,

un

basa

ltic

lav

vide

da

fl ow

s, u

ndi

sitic

lav

ande

Gravity slide brecciaVolcanic rocks of Comanche

Canyon

QuichapaGroup

HarmonyHillsTuff

CondorCanyon

Fm.

Leach Canyon Formation

Olig

ocen

eup

per

low

er

Isom Fm. andenclosing sedimentary

rocks

Needles Range Group

Pal

eoce

ne a

nd E

ocen

eU

pper

Mid

dle

Low

erU

pper

Low

erLo

wer

ylva

nian

Pen

ns

Low

er to

Upp

er

Mis

siss

ippi

an

Low

er

Dev

onia

nC

ambr

i an

Up p

erU

pper

Upp

erM

iddl

eLo

wer

ClaronFormation

uppermember

lowermember

Grapevine WashFormation

Canaan PeakFm.

0-120

0-35

tectonic breccia (?) Ktm

Ksu

Kst

Kdt

Jcw

Jcp

Jcx

Jcc

Jtw

Jts

Jc

Kcm

Ki

0-330 0-100

IronSprings

Formation

aigh

tS

trC

li ffs

Fm

. upperunit

TibbetCanyon

Mbr

Dakota Fmand

Tropic Shale,undivided

>320

>100

240 -

4 50

75- 1

35

850

26030

00-4

000

900-

122 0

Lower Cedar Mountain Fm. 0-100

0-320

0-130 0-40

0-98

0-160 0-50

0-250 0-75

0-30

Carmel Formation

Winsor Mbr.

Paria River Mbr.Crystal Creek

Member

Co-op CreekLimestoneMember

285-580

1800-2300

550-700

87-177

TempleCap

Formation

White Throne Mbr.

Sinawava Mbr. <10-400

<3-120

Navajo Sandstone Jn

Jk

Jks

Jkt

Jnl

KayentaFormation

MoenaveFormation

ChinleFormation

MoenkopiFormation

KaibabFormation

ToroweapFormation

PakoonDolomite

RedwallLimestone

CallvilleLimestone

Muddy Peak Dolomite

Nopah Dolomite

Bright Angel Shale

Tapeats Sandstone

gneiss, schist, pegmatite

Bonanza KingFormation

prin

g Fm

.B

ird S

e r D

am W

ash)

of B

eav

(wes

t

TenneyCanyonTongue

upper part

Lamb Point Tong.

550-1500

200-390

400-650

200-600

350-1000

300-5500-

2500-

3000-90

0-75

90-170

105-300

60-180

120-200

60-115

165-460

140-

315

43-9

5

0-60

90-150 27-45

0-18

Springdale Ss. Mbr

Whitmore Point and Dinosaur CanyonMbrs, undivided

J^m

PetrifiedForest Mbr.

Shnabkaib Member

^cp

^cs

^mu

^ms

^mm

^mv

^ml

^mt^mr ^

mtr

^m

Shinarump Cgl. Mbr 5-250

50-1800-200

30-200 9-60

0-350200-300

160-250

48-75

65-870

20-265

60-90

0-100

0-6015-55

2-75

upper redmember

middle redmember

lower redmember

Virgin Ls. Mbr.

Harrisburg Mbr

Brady Canyon Mbr

Seligman Mbr

Fossil Mountain Mbr

WoodsRanch Mbr

Timpoweap Mbr.Rock Canyon Cgl. Mbr

Pkh

PkfPk

Pq

Pp

*c

1400-2000

425-600

Pt

Ptw

PtbPts P

tbs

Queantoweap Sandstone

600-

850

1500

-200

061

5-85

0

8 -26

018

2000

600

460 -

600

180 -

260

P*bs

Mr

Mm

Msc

Dm

M_u

_n

_bk

_ba

_t

440-680

135-207

2600

1300 400

250-350

75-100

800

Paleo-proterozoic Xu

Stacking order of Tertiary units is approximate because of age overlap and age uncertainty; not all units are in contact as shown. Lithology not shown for Tertiary basaltic and andesitic flows, intrusions, Muddy Creek Formation, and lumped units. Unconformities not shown for Tertiary units.

Tim

2.1

Ma)

(1

2 to 8.5 Ma

Large quartz monzonite boulderson Kolob Plateau (derived from Tipv)

14.0 Ma 14.45 Ma

18.7 Ma

20.4 Ma

22.03 Ma

23.8 Ma

30 Ma Wah Wah Springs Fm.

26 to 27 Ma

22.8 Ma mostly Bauers Tuff Mbr.

21.46 Ma to 22.01 Ma

21.62 Ma to 21.97 Ma

21.78 Ma

Tipv

Tid

(20 .

5 M

a)

1.8 6

Ma )

(2

Ti b

Tqcw

Tih

Ti bm

Tgb

d) (u

nits

incl

ude

(21.

9 8 M

a)

(22.

02 M

a)

.00

Ma)

(22

KJu

Tqcl

Tqci

derived from eruption of Pine Valley

laccolith, triggered by rapid laccolith

emplacement and consequent

large gravity slides (Tgb)

Pine Valley laccolithintruded here

TKg lacks volcanic clasts

TKcp has Jurassic volcanic clasts

below Square Top Mtn. thrust

gastropods, coal

large landslides

alabaster gypsum

Isocrinus sp.

unconformityK unconformity

J-2 unconformity?

J-1 unconformity

large, sweeping cross-bedslocally prominent joints

prominent cliff; Silver Reef mining district

sandstone ledge, pinches out west of Zion N.P.

prominent cliff

J-sub Kayenta unconformity

“J-0” unconformity

P-tw unconformity

TR-3 unconformity

TR-1 unconformity

P-k unconformity

fish fossils

numerous landslides

“bacon-striped” ledgy slopes

3 limestone ledges to east5 limestone ledges to west

gypsumbrachiopods“black-banded” cliff

“stair-step” topography

gypsum

P-0 unconformity

unconformity

Thunder Springs Mbr.

unconformity

Msc absent in Beaver DamMountains

banded light and dark gray

Great Unconformity1.2 billion year gap

transition zoneplanar bedded

sandstone ledge pinches out westward in Zion N.P.

about 1.7 billion years old

J^mc

J^km

^cPk

^u

^mPt

^mPk

Pkt

Pkq

P*pc

_u

Scotty Wash Quartzite andChainman Shale, undivided

Cris

toM

onte

of

Lim

esto

ne (w

est

Bea

ver D

am W

ash)

160 50

1000

300

bas

ins

(Pal

eoce

ne-E

ocen

e) a

nd u

pli

ntai

nent

of i

nter

mo

Dev

elop

me

ft of

wes

tern

U.S

. (E

ocen

e-O

ligoc

ene)

; upl

ift c

ontin

ues

to p

rese

nt d

ay

Exp

losi

ve, c

alc-

alka

line

volc

anis

m a

nd c

alde

ra d

evel

opm

ent

Bim

odal

vol

cani

sm, o

nset

of b

asin

-ran

ge e

xten

sion

o f C

olor

ado

Pl a

teau

argi

n n-

mof

wes

t er

oll a

pse

and

c

urri c

ane

faul

tH

proximal

distal

bas

inFo

rede

e pB

ackb

ulg e

bas

in

thru

st fa

ultin

gU

pper

Jur

assi

c-Lo

wer

Cre

tace

ous

fore

bulg

e h

igh

(60

m.y

. gap

in ro

ck re

cord

)

Sev

i er o

rog e

n y

Broad, nearlyflat continental

interior

Dom

inan

t stre

a m f l

o wt o

nor

t hw

e st

Developmentof island arc

at west edge ofNorth

America

Nea

r wes

tern

mar

gin

of P

ange

a su

p erc

ontin

ent

eli e

f con

ti nen

tal s

helf

ery

low

-rv

Part of theMojave Province

ort

of N

e ba

sin

a t w

este

rn m

argi

nw

-mar

ing

shal

loS

low

ly s

ubsi

din

a lo

ng-li

ved

boun

dary

bet

we

tah

hing

elin

e,h

Am

eric

an c

rato

n; U

en s

ubsi

d ing

al s

h elf

to e

a st,

cont

sin

t o w

est a

nd s

t abl

e co

ntin

ent

mar

ine

baro

ls s

edim

enta

t ion

erosion dominant

fault-bounded basinsto west, but erosiondominates SW Utah.

Virgin River integratedwith Colorado River

alluvial fan

Mineral Mtn.intrusion

Kane SpringsWash caldera

TelegraphDraw caldera of

Calientecaldera complex

river andalluvial fan

of a

sh-fl

ow tu

ffsso

urce

s

Stoddard Mtn.intrusion

Bull Valleyintrusion

Pinto Peakintrusion

Bull ValleyMountains

Calientecaldera

Calientecaldera?

IndianPeak

caldera

sour

ces

of a

sh-fl

o w tu

f fs

Volc

anic

hig

hlan

ds a

nd in

term

onta

ine

basi

ns

river and lakesediments modified

by soil formation

river andalluvial-fan

fault breccia

shoreface

floodplain, river, lagoonal,estuarine enviroments of coastal plain; Tropic iswestward-thinningmarine tongue

river and alluvial plain

sandy mudflat

shallow marine

restricted shallow marinecoastal sabkha and

tidal flat

coastal dune fieldcoastal sabkha and

tidal flat

vast eolian dunefield of arid

west coast tropicaldesert; basal part

is sabkhadeposits

distal river andplaya

eolian dune fielddistal river, playa,

minor lakebraided streamriver, lake, and

floodplain

floodplain, lake,stream

braided river

tidal flat

tidal flat

tidal flat

tidal flat andcoastal sabkha

shallow marine

shallow marine

shallow marine

shallow marine

shallow marine & sabkha

shallow marine and sabkha

river channel

shallow marine,beach, coastal

dune field

shallowmarine

intertidal andnearshore

metamorphic andigneous rocks

sand and gravel,basaltic lava flows

conglomerate,sandstone, siltstone,

mudstone

lava flows

lava flows

lava flows

conglomerate

ash-flowtuffs

ash-flowtuff

ash-flowtuff

ash-flowtuff

conglomerate, sandstone

breccia

ash-flow tuff & lava flows

lava flows andash-flow tuff

ash-flow tuff,limestone, and

tuffaceoussandstone

limestone

mudstone,siltstone, and

sandstone

conglomerateand

sandstone

mudstone andsandstone

sandstone

mudstone, siltstone,sandstone

conglomerate

sandstone and siltstone

gypsum and limestone

mudstone and siltstone

micritic limestone

sandstonesiltstone and mudstone

sandstone

siltstone, sandstone,and mudstone

sandstone

sandstone

siltstone, sandstone,and mudstone

sandstone, siltstone,limestone

claystone, mudstone,sandstone

sandstone and conglomerate

siltstone, sandstone,and mudstone

gypsum, mudstone,and siltstone

mudstone, siltstone,gypsum

limestone and mudstone

limestone and mudstone

mudstone and siltstone

conglomerate

gypsum, limestone

cherty limestone

limestone, siltstone,gypsum

limestone, gypsiferous siltstone

sandstone

dolomite withminor limestone

and gypsum

limestone withlesser siltstone,sandstone, and

dolomite

sandstone and shale

limestone

dolomite andsandstone

dolomite

dolomite, with silty limestonein lower part

shale, siltstone,sandstone

orthoquartzite andpebble conglomerate

gneiss, schist,pegmatite

sion

Min

eral

Mou

n ta i

n in

tru

unconformity

unconformity

unconformity

fault zone

Dunderberg Shaleequivalent ?

Chisholm Shaleequivalent?

Pin

e Va

lley

l acc

olith

sion

The

Dai

r y i n

tru

Bul

l Val

l ey

intru

sio n

Har

dscr

abbl

e H

o llo

w in

t rusi

on

a in

intru

sion

Big

Mou

nt

Ord

ovic

ian

and

Silu

rian

stra

ta re

mov

ed b

yh

t he

Ant

ler o

roge

nyci

ate d

wit

sio n

ass

o e

ro

169 to170 Ma

UTAH GEOLOGICAL SURVEYa division of Utah Department of Natural Resources

1300 400