Fission-Track Thermochronology Applied to the Evolution of Passive Continental Margins

Wildman, Mark; Cogné, Nathan; Beucher, Romain

doi:10.1007/978-3-319-89421-8_20

Cited by 30 publications

(32 citation statements)

References 166 publications

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“…In the classical interpretation of these boomerang shapes for continental margins (Gallagher and Brown, 1999;Wildman et al, 2019), the upper samples preserve the erosional history of the premodern margin formation, in our case, the Cretaceous Pyrenean rifting (blue area in Figs. 6A-6C), while the lower samples record the evolution of the modern escarpment (green area in Figs.…”

Section: Mtl Regional Distributionsupporting

confidence: 54%

Cretaceous and late Cenozoic uplift of a Variscan Massif: The case of the French Massif Central studied through low-temperature thermochronometry

et al. 2020

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Located in the foreland domain of the Alpine and Pyrenean mountain belts, the French Massif Central presents enigmatic topographic features—reaching elevations of ∼1700 m above sea level and ∼1000 m of relief—that did not originate from Alpine compressional nor from extensional tectonics. Similar to other Variscan domains in Europe, such as the Bohemian, Rhenish, and Vosges/Black Forest Massifs, a Cenozoic uplift has been postulated, although its timing and quantification remain largely unconstrained. With respect to the other Variscan Massifs, the French Massif Central is wider and higher and shows a more intense late Cenozoic volcanism, suggesting that deep-seated processes have been more intense. In this study, apatite fission-track and (U-Th)/He thermochronometry were applied to investigate the long-term topographic evolution of the Massif Central. Our new thermochronological data come from the eastern flank of the massif, where sampling profiles ran from the high-elevation region down to the Rhône River valley floor with a total elevation profile of 1200 m. Age-elevation relationships, mean track-length distributions, and thermal modeling indicate a two-step cooling history: (1) a first exhumation event, already detected through previously published thermochronology data, with an onset time during the Cretaceous, and (2) a more recent Cenozoic phase that is resolved from our data, with a likely post-Eocene onset. This second erosional event is associated with relief formation and valley incision possibly induced by a long-wavelength domal uplift supported by mantle upwelling.

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Section: Mtl Regional Distributionsupporting

confidence: 54%

Cretaceous and late Cenozoic uplift of a Variscan Massif: The case of the French Massif Central studied through low-temperature thermochronometry

et al. 2020

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“…While the focus of this paper is on the post‐orogenic thermal evolution and exhumation history of the northern Appalachian Foreland Basin, we note that the results and interpretations from this study are similar to thermochronology studies along other passive continental margins. Drainage reorganization following rifting is a common element of passive margin evolution, resulting in a general younging of ages seaward (e.g., Gallagher & Brown, ; Wildman et al, ). A similar younging age trend is observed in our AFT ages and across many passive margins, including Southeastern Africa, Southwestern Africa, Brazil, Eastern Greenland (c.f.…”

Section: Discussionmentioning

confidence: 99%

“…A similar younging age trend is observed in our AFT ages and across many passive margins, including Southeastern Africa, Southwestern Africa, Brazil, Eastern Greenland (c.f. Wildman et al, ). In a review paper, Wildman et al () discuss thermochronologic datasets from other passive continental margins that, like our study, also reveal complex spatial and temporal exhumation histories and constrain up to several kilometers of overburden exhumation.…”

Section: Discussionmentioning

confidence: 99%

“…However, a growing body of research provides insight into the geomorphic, structural and thermal evolution that occur syn‐ and post‐rifting and demonstrates a more dynamic history along passive margins and within their interior hinterlands (c.f. Bishop, ; Wildman, Cogné, & Beucher ). Understanding the processes within onshore sedimentary basins adjacent to passive continental margins, such as the Appalachian Foreland Basin, is important for understanding processes governing the evolution of these passive margins as well as their relationship to offshore basins, often containing hydrocarbon or mineral reserves (Whittaker, Goncharov, Williams, Müller, & Leitchenkov, ).…”

Section: Introductionmentioning

confidence: 99%

“…Understanding the processes within onshore sedimentary basins adjacent to passive continental margins, such as the Appalachian Foreland Basin, is important for understanding processes governing the evolution of these passive margins as well as their relationship to offshore basins, often containing hydrocarbon or mineral reserves (Whittaker, Goncharov, Williams, Müller, & Leitchenkov, ). The evolution of onshore topography and landscape influences the development of the passive margin and controls the production and transportation of sediments into the offshore environment (Wildman et al, ). However, a complete onshore stratigraphic record of basin exhumation and passive continental margin development is often not preserved due to uplift and erosion.…”

Section: Introductionmentioning

confidence: 99%

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Post‐orogenic thermal history and exhumation of the northern Appalachian Basin: Low‐temperature thermochronologic constraints

Shorten

Fitzgerald

2019

Basin Research

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Apatite fission‐track (AFT) thermochronology and (U‐Th)/He (AHe) dating, combined with paleothermometers and independent geologic constraints, are used to model the thermal history of Devonian Catskill delta wedge strata. The timing and rates of cooling determines the likely post‐orogenic exhumation history of the northern Appalachian Foreland Basin (NAB) in New York and Pennsylvania. AFT ages generally young from west to east, decreasing from ~185 to 120 Ma. AHe single‐grain ages range from ~188 to 116 Ma. Models show that this part of the Appalachian foreland basin experienced a non‐uniform, multi‐stage cooling history. Cooling rates vary over time, ~1–2 °C/Myr in the Early Jurassic to Early Cretaceous, ~0.15–0.25 °C/Myr from the Early Cretaceous to Late Cenozoic, and ~1–2 °C/Myr beginning in the Miocene. Our results from the Mesozoic are broadly consistent with earlier studies, but with the integration of multiple thermochronometers and multi‐kinetic annealing algorithms in newer inverse thermal modeling programs, we constrain a Late Cenozoic increase in cooling which had been previously enigmatic in eastern U.S. low‐temperature thermochronology datasets. Multi‐stage cooling and exhumation of the NAB is driven by post‐orogenic basin inversion and catchment drainage reorganization, in response to changes in base level due to rifting, plus isostatic and dynamic topographic processes modified by flexure over the long (~200 Myr) post‐orogenic period. This study compliments other regional exhumation data‐sets, while constraining the timing of post‐orogenic cooling and exhumation in the NAB and contributing important insights on the post‐orogenic development and inversion of foreland basins along passive margins.

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Evolution of the continental margin of south to central Vietnam and its relationship to opening of the South China Sea (East Vietnam Sea)

Huu¹,

Carter²,

Hoang³

et al. 2021

Preprint

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Fission-Track Thermochronology Applied to the Evolution of Passive Continental Margins

Cited by 30 publications

References 166 publications

Cretaceous and late Cenozoic uplift of a Variscan Massif: The case of the French Massif Central studied through low-temperature thermochronometry

Cretaceous and late Cenozoic uplift of a Variscan Massif: The case of the French Massif Central studied through low-temperature thermochronometry

Post‐orogenic thermal history and exhumation of the northern Appalachian Basin: Low‐temperature thermochronologic constraints

Evolution of the continental margin of south to central Vietnam and its relationship to opening of the South China Sea (East Vietnam Sea)

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