Geology Reference
In-Depth Information
Aschoff J, Steel RJ (in press) Anomalous clastic wedge develop-
ment during the Sevier-Laramide transition, North American
Cordilleran Foreland basin, USA. Geol Soc Am Bull
Balsley MD (1980) Cretaceous wave-dominated delta systems,
Book Cliffs, East-Central Utah. In: AAPG continuing educa-
tion course fi eld guide. American Association of Petroleum
Geologists, San Francisco
Benda TL (2000) Facies, architecture and sequence stratigraphy
of a fourth-order clastic wedge: Upper Cretaceous
Twentymile Sandstone (Mesaverde Group) NW Colorado.
MS thesis, University of Wyoming, Laramie
Benda TL, Steel RJ (2000) Architecture, facies, and sequence
stratigraphy of a fourth-order clastic wedge: Twentymile
Sandstone, Mesaverde Group, NW Colorado, AAPG Annual
Meetings and Abstracts. AAPG, San Antonio, p A12
Bergman KM (1999) Shannon Sandstone in Hartzog Draw-Heldt
Draw Fields (Cretaceous, Wyoming, USA) reinterpreted as
lowstand shoreface deposits. J Sediment Res B64:184-201
Bergman KM, Snedden JW (1999) Isolated shallow marine sand-
bodies: sequence stratigraphic analysis and sedimentological
perspectives, SEPM special publications 64. SPEM, Tulsa
Bhattacharya J, Walker RG (1992) Deltas. In: Walker RG, James
NP (eds) Facies models: response to sea level change. Geol
Association of Canada, St. Johns
Bhattacharya J, Willis B (2001) Lowstand deltas in the Frontier
Formation, Wyoming: implications for sequence strati-
graphic models. Am Assoc Petrol Geol Bull 85:261-294
Birgenheier LP, Fielding CR, Corbett MJ, Kesler C (2009)
Sequence stratigraphic assessment of the Muley Canyon
Sandstone and Masuk formation, Henry Mountains syncline:
implications for understanding the Muley Canyon Cole
Zone, UGS report, 106 p
Boyles JM (1983) Depositional history and sedimentology of
Upper Cretaceous Mancos Shale and Lower Mesaverde
Group, northwestern Colorado: migrating shelf-bar and
wave-dominated shoreline deposits. Ph.D. thesis, University
of Texas, Austin
Boyles JM, Scott AJ (1982) A model for migrating shelf-bar
sandstones in upper Mancos Shale (Campanian), northwestern
Colorado. Am Assoc Petrol Geol Bull 66:491-508
Bullimore SA, Helland-Hansen W, Henriksen S, Steel RJ (2008)
Shoreline trajectory and its impact on coastal depositional
environments; an example from the Upper Cretaceous
Mesaverde Group, northwestern Colorado, U.S.A. In:
Hampson et al (eds) Recent advances in models of siliciclas-
tic shallow-marine stratigraphy, SEPM special publications
90. SPEM, Tulsa, pp 209-236
Cattaneo A, Steel RJ (2003) Transgressive deposits: a review of
their variability. Earth-Sci Rev 62:187-228
Charvin K, Hampson GJ, Gallagher KL, Labourdette R (2010)
Intra-parasequence architecture of an interpreted asymmetri-
cal wave-dominated delta. Sedimentology 57:760-785
Chen Z, Song B, Wang Z, Cai Y (2000) Late Quaternary evolu-
tion of the subaqueous Yangtse Delta, China: sedimentation,
stratigraphy, palynology and deformation. Mar Geol 162:
423-441
Cobban WA, Obradovich JD, Walaszcyk I, McKinney KC
(2006) A USGS zonal table for the Upper Cretaceous middle
Cenomanian-Maastrichtian of the Western Interior of the
United States based on ammonites, Inoceramids, and radio-
metric ages. USGS open-fi le report 2006-1250
17.6
Summary
The fi eld evidence for tidal deposits and processes in
the 13My Campanian interval of the Western Interior
Seaway of Wyoming, Utah and Colorado shows that
tidal signals were recorded predictably along many of
the open shorelines as well as in back-barrier and
estuarine environments. Less predictable is (1) the
preferential occurrence of tidal infl uence or dominance
along lowstand shorelines that developed 100s of km
basinwards of their storm-wave dominated highstand
positions, and (2) the occurrence of a ca. 2.5 My anom-
alous stratigraphic interval (mainly in uppermost
Middle Campanian) when regressive and transgressive
shorelines at all sea-level stands were signifi cantly
tidally infl uenced. The former occurrence is suggested
to result from stronger tidal currents and dampened
waves in the central reaches of the basin when sea level
was low. This scenario is in contrast to passive margin
basins where an increase in storm-wave conditions is
commonly documented in the distal parts of sequences,
on the outer reaches of the shelf and at the shelf edge
(Porebski and Steel
2006
; Yoshida et al.
2007
) . The
latter occurrence is likely due to initial (77.5-75 Ma)
Laramide tectonic movements in the region that began
to change the confi guration of the basin from a back-
tilted foreland basin to a slightly forward-tilted, irregu-
larly shallowed seascape, with a corresponding change
in shoreline morphology.
References
Ahmed S (2008) Tide-infl uenced deltas in the Haystack
Mountains Formation, SW Wyoming. Senior Honors thesis,
University of Texas, Austin
Ainsworth BR, Pattison SAJ (1994) Where have all the lowstands
gone? Evidence for attached lowstand systems tracts in the
Western Interior of North America. Geology 22:415-418
Allen GP, Posamentier HW (1994) Transgressive facies and
sequence architecture in mixed tide- and wave-dominated
incised valleys; example from the Gironde Estuary, France.
In: Dalrymple RW, Boyd R, Zaitlin BA (eds) Incised-valley
systems; origin and sedimentary sequences, SEPM Special
Publication 51. SEPM, Tulsa, pp 225-240
Aschoff J (2008) Controls on the development of clastic wedges
and growth strata in foreland basins: examples from
Cretaceous Cordilleran Foreland Basin strata, USA. Ph.D.
thesis, University of Texas, Austin
Aschoff J, Steel RJ (2010) Anatomy and development of a
low-accommodation clastic wedge,Upper Cretaceous, Cordill-
eran Foreland Basin, USA. Sedimentary Geology
