Facies analysis of the lower cycles of the Mesaverde Group (Upper Cretaceous) in northwestern Colorado

Kiteley, Louise W.

doi:10.3133/ofr83820

Cited by 5 publications

(8 citation statements)

References 15 publications

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“…3). The studied outcrops offer high‐quality, near‐continuous exposure across large distances, with only minor modification by post‐depositional structures; as a result, stratigraphic units and bounding surfaces have been mapped over tens to hundreds of kilometres (Balsley, 1980; Kiteley, 1980; Boyles, 1983; Molenaar & Wilson, 1993; Van Wagoner, 1995; Hampson et al. , 1999, 2008; Pattison, 2005a; Pattison et al.…”

Section: Dataset and Methodsmentioning

confidence: 99%

“…The Castlegate Sandstone comprises predominantly braided fluvial sandstones (Van Wagoner, 1995; Yoshida, 2000; Miall & Arush, 2001; Adams & Bhattacharya, 2005). The Mancos Shale contains multiple isolated sandstones and sandy intervals that lie basinwards of, and are broadly coeval with, the Blackhawk Formation (Konishi, 1959; Kucera, 1959; Ritzma, 1959; Kopper, 1962; Dyni & Cullins, 1965; Kellogg, 1977; Kiteley, 1980; Boyles & Scott, 1982; Boyles, 1983; Kiteley & Field, 1984; Swift et al. , 1987; Chan et al.…”

Section: Geological Contextmentioning

confidence: 99%

“…Sections of the outcrops along the northern flank of the Uinta and Piceance Basins and southern flank of the Sand Wash Basin (Fig. 4) have been documented (Konishi, 1959; Kucera, 1959; Kiteley, 1980; Boyles & Scott, 1982; Boyles, 1983; Kiteley & Field, 1984; Molenaar & Wilson, 1993), but there have been few previous attempts to reconstruct stratigraphy along the entire outcrop belt (e.g. Gill & Hail, 1975).…”

Section: Stratigraphic Frameworkmentioning

confidence: 99%

“…Cosets of cross‐beds may be bounded by gently dipping (up to 4°), planar or channellized erosion surfaces, which record migration of dunes over larger barforms and channels (e.g. Kiteley, 1980; Boyles & Scott, 1982). Cross‐bedded sandstones are sparsely to moderately bioturbated by a Skolithos ichnofacies (cf.…”

Section: Depositional Systemsmentioning

confidence: 99%

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Sediment dispersal and quantitative stratigraphic architecture across an ancient shelf

Hampson¹

2010

Sedimentology

119

172

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Two large (200 to 300 km), near-continuous outcrop transects and extensive well-log data (ca 2800 wells) allow analysis of sedimentological characteristics and stratigraphic architecture across a large area (ca 60 000 km 2 ) of the latest Santonian to middle Campanian shelf along the western margin of the Western Interior Seaway in eastern Utah and western Colorado, USA. Genetically linked depositional systems are mapped at high chronostratigraphic resolution (ca 0AE1 to 0AE5 Ma) within their sequence stratigraphic context. In the lower part of the studied interval, sediment was dispersed via wave-dominated deltaic systems with a 'compound clinoform' geomorphology in which an inner, wave-dominated shoreface clinoform was separated by a muddy subaqueous topset from an outer clinoform containing sand-poor, gravity-flow deposits. These strata are characterized by relatively steep, net-regressive shoreline trajectories (>0AE1°) with concave-landward geometries, narrow nearshore belts of storm-reworked sandstones (2 to 22 km), wide offshore mudstone belts (>250 km) and relatively high sediment accumulation rates (ca 0AE27 mm year )1 ). The middle and upper parts of the studied interval also contain wave-dominated shorefaces, but coeval offshore mudstones enclose abundant 'isolated' tide-influenced sandstones that were transported subparallel to the regional palaeoshoreline by basinal hydrodynamic (tidal?) circulation. These strata are characterized by relatively shallow, net-regressive shoreline trajectories (<0AE1°) with straight to concave-seaward geometries, wide nearshore belts of storm-reworked sandstones (19 to 70 km), offshore mudstone belts of variable width (130 to >190 km) and relatively low sediment accumulation rates (ca £0AE11 mm year )1 ). The change in shelfal sediment dispersal and stratigraphic architecture, from: (i) 'compound clinoform' deltas characterized by across-shelf sediment transport; to (ii) wave-dominated shorelines with 'isolated' tide-influenced sandbodies characterized by along-shelf sediment transport, is interpreted as reflecting increased interaction with the hydrodynamic regime in the seaway as successive shelfal depositional systems advanced out of a sheltered embayment ('Utah Bight'). This advance was driven by a decreasing tectonic subsidence rate, which also suppressed autogenic controls on stratigraphic architecture.

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Section: Dataset and Methodsmentioning

confidence: 99%

Section: Geological Contextmentioning

confidence: 99%

Section: Stratigraphic Frameworkmentioning

confidence: 99%

Section: Depositional Systemsmentioning

confidence: 99%

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Sediment dispersal and quantitative stratigraphic architecture across an ancient shelf

Hampson¹

2010

Sedimentology

119

172

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“…Blackmer (1939), Beattie (1958), Kerr (1958), Kucera (1962), Lauman (1965), Buffler (1967), Masters (1967), and Kiteley (1980) all wrote geological theses pertaining to parts of the study area.…”

Section: Previous Researchmentioning

confidence: 99%

Geohydrologic evaluation of the upper part of the Mesaverde Group, northwestern Colorado

Robson¹,

Stewart²

1990

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Regional Controls On Depositional Trends In Tidally Modified Deltas: Insights From Sequence Stratigraphic Correlation and Mapping of the Loyd And Sego Sandstones, Uinta And Piceance Basins of Utah and Colorado, U.S.A.

Burton¹,

Flaig

Prather

2016

Journal of Sedimentary Research

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Facies analysis of the lower cycles of the Mesaverde Group (Upper Cretaceous) in northwestern Colorado

Cited by 5 publications

References 15 publications

Sediment dispersal and quantitative stratigraphic architecture across an ancient shelf

Sediment dispersal and quantitative stratigraphic architecture across an ancient shelf

Geohydrologic evaluation of the upper part of the Mesaverde Group, northwestern Colorado

Regional Controls On Depositional Trends In Tidally Modified Deltas: Insights From Sequence Stratigraphic Correlation and Mapping of the Loyd And Sego Sandstones, Uinta And Piceance Basins of Utah and Colorado, U.S.A.

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