William W. Little

Stratigraphic Overview

© 2015 by W.W. Little Geological Consulting, LLCPhoto by W. W. Little

Tectonic Setting: Foreland Basin

Spanish Fork Canyon

Campanian strata of the Book Cliffs region were deposited across the Western Interior foreland basin in response to eastward movement on the Canyon Range thrust system, a part of the Sevier Thrust Belt.

This course progresses from onshore to offshore through the Star Point Sandstone/Blackhawk Formation/Castlegate Sandstone interval, beginning with proximal alluvial fan deposits in Spanish Fork Canyon and ending with incised valley fill at Thompson Canyon. From SEPM Strata (sepmstrata.org)

Spanish Fork Canyon (Red Narrows):Price River Fm (Castlegate equivalent)

Photo by W. W. Little

Lower Price River Fm Facies

Photos by W. W. Little

Upper Price River Fm Facies

Photo by W. W. Little

Photo by W. W. Little Photo by W. W. Little

North of Helper:Star Point SS & Blackhawk Fm

Panther Tongue

Mancos Sh

Storrs Mbr

Sunnyside Mbr

Aberdeen Mbr

Blackhawk Fm undifferentiated

SB

TS

MFS

FSST/LST

TST

HST

Photo by W. W. Little

West of Helper:Star Point SS & Blackhawk Fm

UT/PR/HE 023? 14/08/20 01

Blackhawk Fm undifferentiated

Aberdeen Mbr

Spring Canyon Mbr

Storrs Mbr

Panther Tongue

Mancos Sh

SB

TS

MFS

FSST/LST

TST

HST

Photo by W. W. Little

Mancos Sh & Panther Tongue

Photo by W. W. Little

Mancos Sh Facies

Photo by W. W. Little

DSC05294 DSC05310

DSC05325 DSC05326

Panther Tongue Facies

Photos by W. W. Little

Panther Canyon:Star Point & Blackhawk Fms

Mancos Sh

Panther Tongue

Storrs Mbr

Spring Canyon Mbr

Aberdeen Mbr

Blackhawk Fm undifferentiated

MFS

TS

SB

HST

TST

FSST/LST

Photo by W. W. Little

DSC02631

Carbon Power Plant:Spring Canyon & Aberdeen Mbrs

Aberdeen Mbr

Spring Canyon Mbr

Photo by W. W. Little

DSC01333

Carbon Power Plant:Spring Canyon Mbr, Aberdeen Mbr, &

Blackhawk Fm undifferentiated

Aberdeen Mbr

Spring Canyon Mbr

Blackhawk Fm undifferentiated

(Kenilworth equivalent)

Blackhawk Fm undifferentiated (Aberdeen equivalent incised valley fill)

Aberdeen Mbr

Photo by W. W. Little

DSC026230

Aberdeen Mbr

Spring Canyon Mbr

Photo by W. W. Little

Aberdeen Mbr

Spring Canyon Mbr

Photo by W. W. Little

DSC07856

Spring Canyon Mbr Facies

Photo by W. W. Little

DSC02599

“Monument Turnout:”Aberdeen Mbr Equivalent –

(incised valley fill)

Photo by W. W. Little

DSC02604 DSC01249

DSC01302 DSC06919

“Aberdeen Mbr” Equivalent

Photos by W. W. Little

DSC03210 - 11, 15 Panorama

East of Carbon Power Plant:Spring Canyon Mbr & Castlegate SS

Aberdeen Mbr

Blackhawk Fm undifferentiated

Castlegate SS

Photo by W. W. Little

DSC05169 Photo by W. W. Little

Blackhawk Fm Undifferentiated

DSC01322 Photo by W. W. Little

Photo by W. W. Little

The Castlegate: Castlegate SS

Photo by W. W. Little

DSC04044 Photo by W. W. Little