Tcs

TKgp

Yo

Yo YoTKgp Yo

Tsk

Tcs

Tsk

Tcs

Tqc

Yo

Tsk

E'4000

3000

feet a bove s ea lev el

2000

1000

0

-1000

-2000

-3000

E

San Manuel faultSan Manuel ore body

Kalamazoo ore body

open pit

2440 m (8000 ft)

F-F'

met

ers

abov

e se

a le

vel

0

1000

-500

500

GEOLOGIC MAP OF THE MAMMOTH7 ½' QUADRANGLE, PINAL COUNTY, ARIZONA

Sheet 2

1 11

1 1 1 1 1 1 1 1 1

11 11 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

Yo

Tqc

TcvTcv

Tcv

Yo

TcvTcvQTa

460

m

Cloudburst detachment fault

Trx

Tqc

Yo

Tqc

Trx

A'A4000

2000

1000

3000

feet ab ove se a level

Tcs

(includes units Yogd and Yoa, as well as dikes of aplite and diabase (Yd))San

Man

uel fa

ult

F-F'

500

1000

met

ers

abov

e se

a le

vel

(150

0 ft)

North of Oracle 7.5' Quadrangle

Mammoth 7.5' Quadrangle

1 1 1 1 1 1 1 1 11 11

1 1 1 1 1 1 1

1

1 1 1 1 1 1 1 1 1 1 1 1 1(includes units Yogd and Yoa, as well as

dikes of aplite and diabase (Yd))

Tv

Yg

Tv

1100 m (3

600 ft)

Cloudburst detachment fault

B

San Manuel fa

ult

TrxYo

TqcTqcTcsTcv

TcvTcv

Tcs

QTa fe et abo ve sea level

1000

2000

3000

4000

B'F-F'

met

ers

abov

e se

a le

vel

1000

500

Mammoth 7.5' Quadrangle

North of Oracle 7.5' Quadrangle

1 1 1 1 1 1 1 1 1 1 1 1

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 11 1 1 1Yo

ApacheGroup

Yo

Yo

Tcv

TcvTqcTcs

Tcs

Tcs

QTa

C'4000

3000

2000

1000

feet abo ve sea level

C

1320 m (4330 ft)

San Manuel fault

Cloudburst detachment fault

Cowhead Well fault F-F'

500

1000

met

ers

abov

e se

a le

vel

North of Oracle 7.5' Quadrangle

Mammoth 7.5' Quadrangle

1 1 1 1

1 1 1 1 11 1 1 1 1 1

1 1 1 1 1

11 1 1 1 1 1 1

1

Mammoth 7.5' Quadrangle

North of Oracle 7.5' Quadrangle

Yo

YoYoYo

YoTcv Yo

Tqc

TcsTcsTcs

D4000

3000

feet ab ove se a lev el

2000

1000

0

-1000

-2000

-3000

D'

Tcv

TcsF-F'

1860 m (6100 ft)

San Manuel fault

met

ers

abov

e se

a le

vel

1000

500

0

-500

Turtle fault intruded by rhyolite and rhyolite breccia

Black Canyon

fault

RedRockfault

Cloudburst detachment fault intruded by rhyolite and rhyolite breccia

Turtle fault

Cloudburst detachment fault

Tri

Tsk

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

1 1 1 1 1 1 1

TKgpTsk

Tcv

F'4000

3000

2000

1000

0

-1000

-2000

-3000

feet above sea le vel

FA-A' B-B'

Tarmine

(northwest)

Yo

C-C' D-D'

Turtle

fault

E-E' San Manuel fault

open pit

Cloudburst detachment

fault

(southeast)

1000

Yo

met

ers

abov

e se

a le

vel

0

-500

500

Tri

Porphyry copper mineralization

CROSS SECTIONS

Research supported by the U.S. Geological Survey, National Cooperative GeologicMapping Program, under assistance award number 07HQAG0110. Additional

funding for this project was provided by the Arizona Department of Water Resources.The views and conclusions contained in this document are those of the authors and

should not be interpreted as necessarily representing the official policies, eitherexpressed or implied, of the U.S. Government.

bySpencer, J.E., Gootee, B.F., Richard, S.M., and Cook, J.P.

Arizona Geological Survey Digital Geologic Map 67(DGM-67), version 1.0

Sheet 2 of 2

September 2009

Citation for this map:Spencer, J.E., Gootee, B.F., Richard, S.M., and Cook, J.P., 2009

Geologic map of the Mammoth 7½' Quadrangle, Pinal County,Arizona: Arizona Geological Survey Digital Geologic Map DGM-67,

scale 1:24,000.