Academic Journal
Benchmarking analogue models of brittle thrust wedges
| العنوان: | Benchmarking analogue models of brittle thrust wedges |
|---|---|
| المؤلفون: | Schreurs, Guido, Buiter, Susanne J.H., Boutelier, Jennifer, Burburry, Caroline, Callot, Jean-Paul, Cavozzi, Cristian, Cerca, Mariano, Chen, Jian-Hong, Cristallini, Ernesto, Cruden, Alexander, Cruz, Leonardo, Daniel, Jean-Marc, da Poian, Gabriela, Garcia, Victor H., Gomes, Caroline J. S., Grall, Céline, Guillot, Yannick, Guzman, Cecilia, Hidaya, Triyani Nur, Hilley, George, Matthias, Klinkmüller, Koyi, Hemin A., Lu, Chia-Yu, Maillot, Bertrand, Catherine, Meriaux, Nilfouroushan, Faramarz, Pan, Pan Chang-Chih, Pillot, Daniel, Rodrigo, Portillo, Matthias, Rosenau, Schellart, Wouter P. Schellart, Schlische, Roy W., Take, Andy, Vendeville, Bruno, Vergnaud, Marine, Vettori, Matteo, Wang, Shih-Hsien, Withjack, Martha O., Yagupsky, Daniel, Yamada, Yasuhiro |
| المساهمون: | Institute of Geological Sciences Bern, Universität Bern = University of Bern = Université de Berne (UNIBE), Centre for Earth Evolution and Dynamics Oslo (CEED), Department of Geosciences Oslo, Faculty of Mathematics and Natural Sciences Oslo, University of Oslo (UiO)-University of Oslo (UiO)-Faculty of Mathematics and Natural Sciences Oslo, University of Oslo (UiO)-University of Oslo (UiO), Geological Survey of Norway (NGU), University of Toronto, Department of Earth Sciences - Palaeobiology Uppsala, Uppsala University, IFP Energies nouvelles (IFPEN), Université de Pau et des Pays de l'Adour (UPPA), Università degli studi di Parma = University of Parma (UNIPR), Universidad Nacional Automa de Mexico, National Taiwan University Taiwan (NTU), Universidad de Buenos Aires Buenos Aires (UBA), Universidade Federal de Ouro Preto, Morro do Cruzeiro, Université Lille Nord de France (COMUE), Department of Earth and Planetary Sciences Piscataway, Rutgers, The State University of New Jersey New Brunswick (RU), Rutgers University System (Rutgers)-Rutgers University System (Rutgers), Stanford University, Université de Cergy Pontoise (UCP), Université Paris-Seine, Monash University Melbourne, German Research Centre for Geosciences - Helmholtz-Centre Potsdam (GFZ), Queen's University Kingston, Canada, Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG), Institut national des sciences de l'Univers (INSU - CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Nord ), Kyoto University |
| المصدر: | ISSN: 0191-8141 ; Journal of Structural Geology ; https://hal.science/hal-01449311 ; Journal of Structural Geology, 2016, 92, pp.116-139. ⟨10.1016/j.jsg.2016.03.005⟩. |
| بيانات النشر: | HAL CCSD Elsevier |
| سنة النشر: | 2016 |
| المجموعة: | HAL e2s UPPA (Université de Pau et des Pays de l'Adour) |
| مصطلحات موضوعية: | Friction, Benchmarking, Analogue modeling, Shear zones, Brittle wedges, Thrust wedges, Cohesion, Critical taper, Sand, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
| الوصف: | International audience ; We performed a quantitative comparison of brittle thrust wedge experiments to evaluate the variabilityamong analogue models and to appraise the reproducibility and limits of model interpretation. Fifteenanalogue modeling laboratories participated in this benchmark initiative. Each laboratory received ashipment of the same type of quartz and corundum sand and all laboratories adhered to a stringentmodel building protocol and used the same type of foil to cover base and sidewalls of the sandbox. Sievestructure, sifting height, filling rate, and details on off-scraping of excess sand followed prescribedprocedures.Our analogue benchmark shows that even for simple plane-strain experiments with prescribedstringent model construction techniques, quantitative model results show variability, most notably forsurface slope, thrust spacing and number of forward and backthrusts. One of the sources of the variabilityin model results is related to slight variations in how sand is deposited in the sandbox. Small changes insifting height, sifting rate, and scraping will result in slightly heterogeneous material bulk densities,which will affect the mechanical properties of the sand, and will result in lateral and vertical differencesin peak and boundary friction angles, as well as cohesion values once the model is constructed. Initialvariations in basal friction are inferred to play the most important role in causing model variability.Our comparison shows that the human factor plays a decisive role, and even when one modeler repeatsthe same experiment, quantitative model results still show variability. Our observations highlightthe limits of up-scaling quantitative analogue model results to nature or for making comparisons withnumerical models. The frictional behavior of sand is highly sensitive to small variations in material stateor experimental set-up, and hence, it will remain difficult to scale quantitative results such as number ofthrusts, thrust spacing, and pop-up width from model to nature. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | hal-01449311; https://hal.science/hal-01449311; https://hal.science/hal-01449311/document; https://hal.science/hal-01449311/file/51118.pdf |
| DOI: | 10.1016/j.jsg.2016.03.005 |
| الاتاحة: | https://hal.science/hal-01449311 https://hal.science/hal-01449311/document https://hal.science/hal-01449311/file/51118.pdf https://doi.org/10.1016/j.jsg.2016.03.005 |
| Rights: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.74464C0D |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.jsg.2016.03.005 |
|---|