37

36

35

34

959697

98

34

99

35

36

010

101

102

1 30

1 3037

102

1 10

100

99

8997 96 95

?

?

UD

6

5

4

3

2

1N

1E 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28E

26W

25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1W 1E 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

29N

28

27

26

25

24

23

22

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1N

1S

2

3

4

5

6

7

8

CM

RO

NC

IA

R A

RH

A

ANADRKO SHELF

BN

ANADARKO ASI

WITA UPLIFT

ICH

HOLLIS BASIN

ETA

I

MARIT

BASN

RO

A

ADM

RE BSIN

CRINER UPLIFT

ARBUCKLE MOUNTAINS

ISMI

GO

THI

N-

BLTON

HORS

E

T

LCARITA

HORST

PAU S VALLEY-LHUNTON HORST

ARBUCKLE UPLIFT

L W EN HORST

A R CE

ADA

HIGH

SEMINOLESTRUCTURE

WAPANUCKA GRABEN

FRANKSGRABEN

BURIED OUACHITA FRONTAL THRUST

OUACHITA MOUNTAIN UPLIFT

POTATO HILLS

N I O

TAL A

NORTHER L MIT F GULF COAS PL IN

WU

BROKEN BO

PLIF

T

OUACHITA CENTRAL REGION

OUACHITA

FRONTAL

THRUST BELT

ARKOMA BASIN

OZARK UPLIFT

CHEROKEE PLATFORM

NE

AH

A

PL

IFT

MU

WAU

ME

SR

LF

RIKA-U

NTE

UPI

T

ICHITO TA FA L

ON

WA FR N

L U T ZE

CE

TR

L O

LA

HO

NA

KM

A F

AU

LT

ZO

NE

HA

U

LZ

NN

EM

AF

AT

O

E

CYRIL BASIN

10 0 10 20 30 40 Miles

EXPLANATION

WELLS DRILLED TO BASEMENTIN OKLAHOMA

ByJock A. Campbell

AndJane L. Weber

OKLAHOMA GEOLOGICAL SURVEYCharles J. Mankin, Director

SCALE 1:750,000N

Major faults, exposed at, or interpreted to occur at the surface. Hachures shown on relatively downthrown block. Overthrust faults identified with solid barbs on hanging wall block. Arrows indicate relative horizontal movement.

Structural Boundaries

Major subsurface faults. Hachures shown on relatively downthrown block. Overthrust faults identified with open barbs on hanging wall block

Plunge of subsurface structure

Stratigraphic/Structural Boundaries

Surface contact between rock units. May be approxi-mated or locally generated

Buried contact, structural contour, or structural trend

Change in rate of thickness of strata or generalized structural trend

Basement Rooted Uplifts

Geologic Provinces

Detachment Uplift

Deep Basins

Shelves/Shallow Basins

Well Data Points

Basement data point

Geologic Provinces adapted from Open-File 5-95, Northcutt and Campbell, 1995.

Basement data point with penetration of sedimentary rocks below an interval of basement penetration.