| Formation / Members |
Thick- ness |
Rock Type | | |
QUAT |
Alluvial, dune & playa deps |
0-100 |
||
Deposits of Lake Bonneville |
0- 100 |
|||
Basalts of Crater Bench |
0-600 |
|||
PLIOCENE |
Pre-Bonneville valley fill |
0-1000 |
||
Basalt of The Hogback |
0-150 |
|||
MIOCENE |
Rhyolite of The Hogback |
0-100 |
||
Conglomerate of The Hogback |
0-750 |
|||
Topaz Mountain Rhyolite |
0-2000 |
|||
Rhyolite or Keg Mountains |
0-1000 |
|||
Spor Mountain Formation |
Porphyritic rhyolite member |
0-1500 |
||
Beryllium tuff m |
0-200 |
|||
OLIG |
Red Knolls Tuff |
0-100 |
||
Quartz lame stocks of K |
NULL |
|||
Dell Tuff |
0- 500 |
|||
Breccia at Spor Mtn |
0-250 |
|||
EOCENE |
Joy Tuff |
0-700 |
||
Mt. Laird Tuff |
250-1600 |
|||
Tuff of Keg Mountain |
0-300 |
|||
Drum Mountains Rhyodacite |
0-100 |
|||
DEV |
Sevy Dolomite |
1100 ? |
||
SILURIAN |
Laketown Dolomite |
Thursday Member |
330 |
|
Lost Sheep Mbr |
230 |
|||
Harrisite Mbr |
140 |
|||
Bell Hill Member |
410 |
|||
ORD |
Ely Springs Dolomite |
Floride Mbr |
130 |
|
Lower member |
300 |
|||
Eureka Quartzite |
590 |
|||
Pogonip Group |
Kanosh Sh Juab Ls Wah Wah Ls Fillmore Formation House Ls |
2500 |
||
CAMB |
Notch Peak Formation |
1000 |
||
|
Data Sources:
*Still Gathering/Under Construction* USGS Special Publications by Various Authors Roadside Geology of Utah by Halka Chronic Field Guide: Northern Colorado Plateau by Keith Rigby Geologic History of Utah by Lehi Hintze- Purchase Information |
