Development of transient carbonate ramps in an evolving foreland basin

Vlasta Ćosović; Ervin Mrinjek; Wojciech Nemec; Jelena Španiček; Krešimir Terzić

doi:10.1111/bre.12274

Tracking dinosaurs in BLM canyon country, Utah

Geology of the Intermountain West ◽

10.31711/giw.v3i0.8 ◽

2018 ◽

Vol 3 ◽

pp. 67-100 ◽

Cited By ~ 3

Author(s):

ReBecca K. Hunt-Foster ◽

Martin G. Lockley ◽

Andrew R.C. Milner ◽

John R. Foster ◽

Neffra A. Matthews ◽

...

Keyword(s):

Colorado Plateau ◽

Foreland Basin ◽

Salt Tectonics ◽

Initial Development ◽

Paradox Basin ◽

Cedar Mountain Formation ◽

History Of ◽

San Rafael ◽

San Rafael Swell ◽

Biological History

Although only recognized as a discrete stratigraphic unit since 1944, the Cedar Mountain Formation represents tens of millions of years of geological and biological history on the central Colorado Plateau. This field guide represents an attempt to pull together the results of recent research on the lithostratigraphy, chronostratigraphy, sequence stratigraphy, chemostratigraphy, and biostratigraphy of these medial Mesozoic strata that document the dynamic and complex geological history of this region. Additionally, these data provide a framework by which to examine the history of terrestrial faunas during the final breakup of Pangaea. In fact, the medial Mesozoic faunal record of eastern Utah should be considered a keystone in understanding the history of life across the northern hemisphere. Following a period of erosion and sediment bypass spanning the Jurassic–Cretaceous boundary, sedimentation across the quiescent Colorado Plateau began during the Early Cretaceous. Thickening of these basal Cretaceous strata across the northern Paradox Basin indicate that salt tectonics may have been the predominant control on deposition in this region leading to the local preservation of fossiliferous strata, while sediment bypass continued elsewhere. Thickening of overlying Aptian strata west across the San Rafael Swell provides direct evidence of the earliest development of a foreland basin with Sevier thrusting that postdates geochemical evidence for the initial development of a rain shadow.

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Late Cretaceous stratigraphy and vertebrate faunas of the Markagunt, Paunsaugunt, and Kaiparowits plateaus, southern Utah

Geology of the Intermountain West ◽

10.31711/giw.v3i0.10 ◽

2016 ◽

Vol 3 ◽

pp. 229-291 ◽

Cited By ~ 1

Author(s):

Alan L. Titus ◽

Jeffrey G. Eaton ◽

Joseph Sertich

Keyword(s):

Late Cretaceous ◽

Foreland Basin ◽

Alluvial Plain ◽

Terrestrial Vertebrate ◽

The North ◽

Single Region ◽

The World ◽

Kaiparowits Plateau ◽

Fossil Preservation ◽

Fossil Records

The Late Cretaceous succession of southern Utah was deposited in an active foreland basin circa 100 to 70 million years ago. Thick siliciclastic units represent a variety of marine, coastal, and alluvial plain environments, but are dominantly terrestrial, and also highly fossiliferous. Conditions for vertebrate fossil preservation appear to have optimized in alluvial plain settings more distant from the coast, and so in general the locus of good preservation of diverse assemblages shifts eastward through the Late Cretaceous. The Middle and Late Campanian record of the Paunsaugunt and Kaiparowits Plateau regions is especially good, exhibiting common soft tissue preservation, and comparable with that of the contemporaneous Judith River and Belly River Groups to the north. Collectively the Cenomanian through Campanian strata of southern Utah hold one of the most complete single region terrestrial vertebrate fossil records in the world.

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Tracking dinosaurs in BLM canyon country, Utah

Geology of the Intermountain West ◽

10.31711/giw.v3.pp67-100 ◽

2016 ◽

Vol 3 ◽

pp. 67-100

Author(s):

ReBecca Hunt-Foster ◽

Martin Lockley ◽

Andrew Milner ◽

John Foster ◽

Neffra Matthews ◽

...

Keyword(s):

Colorado Plateau ◽

Foreland Basin ◽

Salt Tectonics ◽

Initial Development ◽

Paradox Basin ◽

Cedar Mountain Formation ◽

History Of ◽

San Rafael ◽

San Rafael Swell ◽

Biological History

Although only recognized as a discrete stratigraphic unit since 1944, the Cedar Mountain Formation represents tens of millions of years of geological and biological history on the central Colorado Plateau. This field guide represents an attempt to pull together the results of recent research on the lithostratigraphy, chronostratigraphy, sequence stratigraphy, chemostratigraphy, and biostratigraphy of these medial Mesozoic strata that document the dynamic and complex geological history of this region. Additionally, these data provide a framework by which to examine the history of terrestrial faunas during the final breakup of Pangaea. In fact, the medial Mesozoic faunal record of eastern Utah should be considered a keystone in understanding the history of life across the northern hemisphere. Following a period of erosion and sediment bypass spanning the Jurassic–Cretaceous boundary, sedimentation across the quiescent Colorado Plateau began during the Early Cretaceous. Thickening of these basal Cretaceous strata across the northern Paradox Basin indicate that salt tectonics may have been the predominant control on deposition in this region leading to the local preservation of fossiliferous strata, while sediment bypass continued elsewhere. Thickening of overlying Aptian strata west across the San Rafael Swell provides direct evidence of the earliest development of a foreland basin with Sevier thrusting that postdates geochemical evidence for the initial development of a rain shadow.

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The Lower Cretaceous in east-central Utah—The Cedar Mountain Formation and its bounding strata

Geology of the Intermountain West ◽

10.31711/giw.v3.pp101-228 ◽

2016 ◽

Vol 3 ◽

pp. 101-228 ◽

Cited By ~ 4

Author(s):

James Kirkland ◽

Marina Suarez ◽

Celina Suarez ◽

ReBecca Hunt-Foster

Keyword(s):

Colorado Plateau ◽

Foreland Basin ◽

Salt Tectonics ◽

Initial Development ◽

Paradox Basin ◽

Cedar Mountain Formation ◽

History Of ◽

San Rafael ◽

San Rafael Swell ◽

Biological History

Although only recognized as a discrete stratigraphic unit since 1944, the Cedar Mountain Formation represents tens of millions of years of geological and biological history on the central Colorado Plateau. This field guide represents an attempt to pull together the results of recent research on the lithostratigraphy, chronostratigraphy, sequence stratigraphy, chemostratigraphy, and biostratigraphy of these medial Mesozoic strata that document the dynamic and complex geological history of this region. Additionally, these data provide a framework by which to examine the history of terrestrial faunas during the final breakup of Pangaea. In fact, the medial Mesozoic faunal record of eastern Utah should be considered a keystone in understanding the history of life across the northern hemisphere. Following a period of erosion and sediment bypass spanning the Jurassic–Cretaceous boundary, sedimentation across the quiescent Colorado Plateau began during the Early Cretaceous. Thickening of these basal Cretaceous strata across the northern Paradox Basin indicate that salt tectonics may have been the predominant control on deposition in this region leading to the local preservation of fossiliferous strata, while sediment bypass continued elsewhere. Thickening of overlying Aptian strata west across the San Rafael Swell provides direct evidence of the earliest development of a foreland basin with Sevier thrusting that postdates geochemical evidence for the initial development of a rain shadow.

Download Full-text