Utah Stratigraphic Columns    (overview page)

These stratigraphic columns are dynamically created (on the fly) from information stored in a database. Information was gathered from a number of sources - see copyright info for more information.

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Stratigraphy of
Beaver Mountain - Sulpherdale
Period
 Formation / Members  Thick-  ness Rock Type

QUAT

Recent floodplain alluvium

0-20

  

PLEIST

Alluvial terraces of Beaver

0-15

  

Alluvial terraces of Greenville

0-15

  

Old terrace alluvium

0-30

  

Gravel of ancestral Indian Cr

10

  

Basalt of Red Knoll

0-400

  

Basalt of Crater Knoll

0-400

  

Gravel of Last Chance Bench

6-15

  

Tephra of Ranch Canyon

0-150

  

Rhyolite domes & flows

0-200

  

Basalt of Cunningham Hill

1-20

  

PLIOCENE

Upper basin-fill deposits including Lake Beaver beds

600-800

  

Lower basin-fill deposits

Piedmont fluvial & deltaic deposits

1000 ?

  

Conglomerate of Maple Flats

800

  

MIOCENE

Bolson deposits

1000-3000

  

Rhyolite & rhyolite tuff of Gillies Hill

0-1000

  

Mount Belknap Volcanics

Mount Baldy Rhyolite Member

300

  

Joe Lott Tuff Mbr

30

  

Potassium-rich

500

  

mafic lava flows

NULL

  

Formation of Lousy Jim

0-1000

  

Tuff of Lion Flat

0-300

  

Osiris Tuff

0-100

  

OLIG

Mount Dutton Formation 22-27 m.y.

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





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