History of the Sevier orogenic wedge in terms of critical taper models, northeast Utah and southwest Wyoming

DeCelles, Peter G.; Mitra, Gautam

doi:10.1130/0016-7606(1995)107<0454:hotsow>2.3.co;2

Cited by 212 publications

(141 citation statements)

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“…Therefore, deciphering the record of aggradation in the wedge-top in ancient orogen-basin systems allows for conjecture about tectonic and structural evolution of the orogen as well as inferences concerning episodes of increased tectonic activity or tectonic quiescence. Some attempts to decipher this record exist for the Cordilleran Orogen of North America; however, these studies focus on time periods after the Early Cretaceous (DeCelles, 1994;DeCelles and Mitra, 1995;Lageson et al, 2001). …”

Section: Discussionmentioning

confidence: 99%

A Late Jurassic to Early Cretaceous record of orogenic wedge evolution in the Western Interior basin, USA and Canada

et al. 2018

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The Late Jurassic to Early Cretaceous fill of the Western Interior foreland basin is characterized using geochronological data in order to assess the stratigraphic expression of wedge-top geomorphology, as controlled by sediment cover and denudation. In northern Montana, USA, and Alberta, Canada, wedge-top deposits are poorly preserved; however, their former presence may be inferred from the detrital record in the foreland basin. We present new U/Pb detrital zircon data from nine samples collected near Great Falls, Montana, augmented with field data. The stratigraphy at Great Falls is characterized by Late Jurassic marine and nonmarine deposits, which are truncated by a basinwide sub-Cretaceous unconformity. Aptian and lower Albian strata overlying the unconformity are dominated by nonmarine deposits, which transition up-section into a predominantly marine succession related to a major transgression of the Boreal Seaway in the Albian.Detrital zircon grains from Great Falls strata yield age spectra that can be subdivided into three groups using multidimensional scaling. Group 1 is characterized by diverse zircon populations, which are interpreted to record recycling of pre-Cordilleran sedimentary strata transported via foreland basin-axial river systems with headwaters in the southwestern United States. Group 2 is characterized by the dominance of Mesozoic detrital zircon grains, which are interpreted to record sediment dispersal by fluvial systems with headwaters in the Cordillera. Group 3 is intermediate between groups 1 and 2, based on its proportion of Mesozoic zircon grains. This group records a diversification of the provenance from one dominated by Cordilleran igneous rocks to include recycled sedimentary strata.New data are integrated with three other data sets from Montana and Alberta such that stratal thicknesses (a proxy for accommodation development) and provenance evolution can be compared across the basin. The detrital record in each area, which transitions from diverse provenance to predominantly Cordilleran through the entire stratigraphic section, can be linked to the burial of the pre-foreland strata in the wedge-top depozone. This record elucidates a period of evolution of the western margin of North America to a more Andean-type system with primary input to the basin from an active magmatic arc.

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Section: Discussionmentioning

confidence: 99%

A Late Jurassic to Early Cretaceous record of orogenic wedge evolution in the Western Interior basin, USA and Canada

et al. 2018

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“…13c) could be interpreted in terms of the critically tapered wedge theory and the related cyclic evolution of fold-and-thrust belt wedges (Davis et al 1983;DeCelles and Mitra 1995). Regional Plio-Pleistocene uplift and erosion may have transferred the critically tapered wedge of the thin-skinned Jura fold-and-thrust belt that had stalled around the Early Pliocene into a sub-critical stage, initiating renewed out-of-sequence deformation within the fold-and-thrust belt.…”

Section: Tectonic Implicationsmentioning

confidence: 99%

Feedback between erosion and active deformation: geomorphic constraints from the frontal Jura fold-and-thrust belt (eastern France)

Madritsch¹,

Fabbri²,

Hagedorn³

et al. 2009

Int J Earth Sci (Geol Rundsch)

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A regional tectono-geomorphic analysis indicates a Pliocene to recent rock uplift of the outermost segment of the Jura fold-and-thrust belt, which spatially coincides with the intra-continental Rhine-Bresse Transfer Zone. Elevated remnants of the partly eroded Middle Pliocene Sundgau-Forêt de Chaux Gravels identified by heavy mineral analyses allow for a paleo-topographic reconstruction that yields minimum regional Latest Pliocene to recent rock uplift rates of 0.05 ± 0.02 mm/year. This uplift also affected the Pleistocene evolution of the Ognon and Doubs drainage basins and is interpreted as being tectonically controlled. While the Ognon River was deflected from the uplifted region the Doubs deeply incised into it.Focused incision of the Doubs possibly sustained ongoing deformation along anticlines which were initiated during the Neogene evolution of the thin-skinned Jura fold-and-thrust belt. At present, this erosion-related active deformation is taking place synchronously with thick-skinned tectonics, controlling the inversion of the Rhine-Bresse Transfer Zone. This suggests local decoupling between seismogenic basement faulting and erosion-related deformation of the Mesozoic cover sequences.

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“…Strictly, the wedge developed in the models is not a true critical wedge (sensu Davis et al, 1983) because the basal taper is zero. The modeled wedge is internally imbricated and propagating to the foreland (stage 1 of wedge development sensu DeCelles and Mitra, 1995), but it does not attain the true supercritical, sliding stage. In addition, faults to the rear of the modeled wedge do not appear to reactivate with increased compression, as in natural situations (DeCelles and Mitra, 1995).…”

Section: Discussionmentioning

confidence: 99%

“…The modeled wedge is internally imbricated and propagating to the foreland (stage 1 of wedge development sensu DeCelles and Mitra, 1995), but it does not attain the true supercritical, sliding stage. In addition, faults to the rear of the modeled wedge do not appear to reactivate with increased compression, as in natural situations (DeCelles and Mitra, 1995). This implies that in nature, additional penetrative strain can be accommodated in the hinterland thrust sheets, and again suggests that the models are underestimates of natural penetrative strain.…”

Section: Discussionmentioning

confidence: 99%

Spatial and Temporal Variation in Penetrative Strain During Compression: Insights From Analog Models

Burberry

2016

Geological Society of America Abstracts With Programs

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History of the Sevier orogenic wedge in terms of critical taper models, northeast Utah and southwest Wyoming

Cited by 212 publications

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A Late Jurassic to Early Cretaceous record of orogenic wedge evolution in the Western Interior basin, USA and Canada

A Late Jurassic to Early Cretaceous record of orogenic wedge evolution in the Western Interior basin, USA and Canada

Feedback between erosion and active deformation: geomorphic constraints from the frontal Jura fold-and-thrust belt (eastern France)

Spatial and Temporal Variation in Penetrative Strain During Compression: Insights From Analog Models

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