Preview presentation on the Storrs Member of the Star Point Sandstone in Spring Canyon and the Spring Canyon Member of the Blackhawk Formation for a professional field course titled: THE BOOK CLIFFS: A CASE STUDY IN COASTAL SEQUENCE STRATIGRAPHY, offered annually through W.W. LITTLE GEOLOGICAL CONSULTING (also offered by SCA). See details at: HTTP://LITTLEWW.WORDPRESS.COM.

1. DSC06989
William W. Little
© 2015 by W.W. Little Geological Consulting, LLC
Gentile Wash: Storrs & Spring Canyon Mbrs
(TST to HST – offshore marine to coastal plain)
Photo by W. W. Little

2. Shoreface Facies Model
From SEPM Strata (sepmstrata.org)
Jolley (2015)

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Panther Tongue
Storrs Member
STARPOINTSANDSTONEBLACKHAWKFORMATION
SpringCanyonMbr
Wildcat PS
Sowbelly PS
Hardscrabble PS
Heiner & Helper PSs
Aberdeen Mbr
Photo by W. W. Little

5. DSC07006 Photo by W. W. Little

6. Storrs Mbr (3 retrogradational to
aggradational parasequences)
The lower parasequence consists of: laminated ms (offshore) ->
interbedded laminated ms and hummocky-laminated ss (transition zone)
-> hummocky-laminated ss (lower shoreface). Overlying parasequences
become progressively more dominated by more distal facies. Photo by W. W. Little

7. Lower Storrs Parasequence
Photo by W. W. Little

8. Photo by W. W. Little

9. Hummocky-laminated SS (lower shoreface)
Photo by W. W. Little

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Trough Cross-bedded to Horizontally-
laminated SS (upper shoreface to foreshore)
Photo by W. W. Little

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Ophiomorpha Burrows
Photos by W. W. Little

12. Upper Storrs Parasequence
Photo by W. W. Little

13. Horizontally-laminated MS (offshore)
Photo by W. W. Little

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Each parasequence consists of: laminated ms (offshore) ->
interbedded laminated ms and hummocky-laminated ss
(transition zone) -> hummocky-laminated ss (lower shoreface)
Spring Canyon Mbr (5 parasequences)
Photo by W. W. Little

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SpringCanyonMbrStorrsMbr
Helper PS
Sowbelly PS
Hardscrabble PS
Heiner PS
Wildcat PS
MFS
Photo by W. W. Little

16. Sowbelly
Parasequence
Photo by W. W. Little

17. Interbedded
Horizontally-laminated
MS and Hummocky-
laminated SS
(transition zone)
Photo by W. W. Little

18. Hummocky-laminated SS
Photo by W. W. Little

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Trough Cross- to Horizontally-laminated SS
Photo by W. W. Little

20. DSC07057
Trough Cross-laminated
SS
Photo by W. W. Little

21. DSC07075 Photo by W. W. Little

22. Photo by W. W. Little

23. DSC08036
Contorted SS
Photo by W. W. Little

24. Photo by W. W. Little

25. DSC07078 Photo by W. W. Little

26. Panther Tongue
Mancos Sh
Storrs Mbr
Wildcat PS
Sowbelly PS
Hardscrabble PS
Heiner PSHelper PSAberdeen Mbr
Blackhawk Fm undif.
TS
SB
MFS
One Last Look
Photo by W. W. Little

27. Photo by W. W. Little