Coupled flexural-dynamic subsidence modeling approach for retro-foreland basins: Example from the Western Canada Sedimentary Basin
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Research Article| July 06, 2017 Coupled flexural-dynamic subsidence modeling approach for retro-foreland basins: Example from the Western Canada Sedimentary Basin Brandon C. Tufano; Brandon C. Tufano 1Department of Geological Sciences and Environmental Studies, Binghamton University, State University of New York, P.O. Box 6000, Binghamton, New York 13902, USA Search for other works by this author on: GSW Google Scholar Jeffrey T. Pietras Jeffrey T. Pietras † 1Department of Geological Sciences and Environmental Studies, Binghamton University, State University of New York, P.O. Box 6000, Binghamton, New York 13902, USA †jpietras@binghamton.edu Search for other works by this author on: GSW Google Scholar Author and Article Information Brandon C. Tufano 1Department of Geological Sciences and Environmental Studies, Binghamton University, State University of New York, P.O. Box 6000, Binghamton, New York 13902, USA Jeffrey T. Pietras † 1Department of Geological Sciences and Environmental Studies, Binghamton University, State University of New York, P.O. Box 6000, Binghamton, New York 13902, USA †jpietras@binghamton.edu Publisher: Geological Society of America Received: 02 Sep 2016 Revision Received: 13 Feb 2017 Accepted: 26 Apr 2017 First Online: 06 Jul 2017 Online Issn: 1943-2674 Print Issn: 0016-7606 © 2017 Geological Society of America GSA Bulletin (2017) 129 (11-12): 1622–1635. https://doi.org/10.1130/B31646.1 Article history Received: 02 Sep 2016 Revision Received: 13 Feb 2017 Accepted: 26 Apr 2017 First Online: 06 Jul 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Brandon C. Tufano, Jeffrey T. Pietras; Coupled flexural-dynamic subsidence modeling approach for retro-foreland basins: Example from the Western Canada Sedimentary Basin. GSA Bulletin 2017;; 129 (11-12): 1622–1635. doi: https://doi.org/10.1130/B31646.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract This study presents a new analytical modeling approach to estimate the magnitudes of regional thrust load–controlled flexural subsidence and dynamic subsidence related to mantle flow within a retro-foreland basin, thereby providing a prediction of the present-day basin geometry. The Western Canada Sedimentary Basin, with a wealth of well data and previous studies, was used to constrain the approach. In contrast to previous studies, this model uses laterally variable lithospheric flexural rigidities. Constant flexural rigidity cannot produce acceptable matches to observed basin geometries, and it is geologically unreasonable in settings extending across several crustal terranes and thermal regimes.Dynamic subsidence estimates derived from this model agree with those based on mantle convection modeling of the subducting Farallon plate beneath North America. It is this dynamic component that led to regional accommodation more than 250 km beyond the thrust front in the Western Canada Sedimentary Basin, because the flexural component does not contribute to subsidence this far into the foreland. It follows then that initial subsidence in retro-foreland basins can be attributed to dynamic processes, and that the thrust load–related flexural component only contributes in areas within a few hundred kilometers of the thrust front, depending on the flexural rigidity of the lithosphere.The modeling approach developed here can be used in other retro-foreland basins to estimate overall basin geometries where minimal data are available. This has direct implications for predicting the regional distribution of facies in poorly constrained basins, since basin geometry is one of the fundamental controls. Additionally, regional subsidence models can be subtracted from the observed basin geometries in well-constrained basins to yield estimates of local accommodation. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
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Comment cette classification a été obtenuedéplier
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,001 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,001 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule tête enseignante, pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».