’ 
UNITED STATES GEOLOGICAL SU RVEY 
| 
ke 
7. | 
— ; 
: : 
Tras THE EASTERN SANDSTONE ; re | 
+—|_— 
KEWEENAW |SERIES. 
UPPER DIVISIO 
Red Sandstone 
Darke grey Sandstone 
and Black Shale 
| 
Sandstone with thin 
bands of Conglomerate 
: 
: 
--—- 
| LOWER DIVISION 
Diabase, Diabase umygda foid, 
and Melaphyr 
: Sandstone and Conglomerate 
Diabase Diabase amygdale id 
Melaphyr and Diabase-porp! iyry 
with one Porphyry-conglom spate 
Quavtz-porphyry and Felsite t 
Diabase and Diabase amy ydaloid, 
including | 
narrow Conglomerate Be Its 
lo 
Scale ‘iasoo0, or linch- 1 pre tiles 
Prominent expostres of 
- 
showing dip and strike 
aTmassive rocks | ‘ i | 
Exposures of detrital rocks ANS 
| Steins Ss 
; 
pe CAR 257 SQ 
a f—- 4 
f 
OR 
GEOLOGICAL MAP OF THE por 
{ 
bY 
€ 
\ 
a At 
ao] 
A 
CUPINE MOUNTAINS, 
