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Testing the influence of a sand mica mixture on basin fill in extension and inversion experiments Anais da ABC (AABC)
GOMES,CAROLINE J.S.; D'ANGELO,TAYNARA; ALMEIDA,GISELA M.S..
We compare the deformation patterns produced by sand and a sand mica mixture (14:1 ratio of sand to mica by weight) while simulating basin fill in extension and inversion models to analyze the potential of the sand mica mixture for applications that require a strong elasto-frictional plastic analogue material in physical models. Sand and the sand mica mixture have nearly equal angles of internal friction, but the sand mica mixture deforms at a significantly lower level of peak shear stress. In extension, the sand mica mixture basin fill experiments show fewer normal faults. During inversion, the most striking difference between the sand and the sand mica mixture basin fill experiments is related to the internal deformation in fault-propagation folds, which...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Analogue modeling; Sand mica mixture; Tectonic inversion; Basal friction; Fault-propagation folds.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000100051
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Benchmarking analogue models of brittle thrust wedges ArchiMer
Schreurs, Guido; Buiter, Susanne J. H.; Boutelier, Jennifer; Burberry, Caroline; Callot, Jean-paul; Cavozzi, Cristian; Cerca, Mariano; Chen, Jian-hong; Cristallini, Ernesto; Cruden, Alexander R.; Cruz, Leonardo; Daniel, Jean-marc; Da Poian, Gabriela; Garcia, Victor H.; Gomes, Caroline J. S.; Grall, Celine; Guillot, Yannick; Guzman, Cecilia; Hidayah, Triyani Nur; Hilley, George; Klinkmuller, Matthias; Koyi, Hemin A.; Lu, Chia-yu; Maillot, Bertrand; Meriaux, Catherine; Nilfouroushan, Faramarz; Pan, Chang-chih; Pillot, Daniel; Portillo, Rodrigo; Rosenau, Matthias; Schellart, Wouter P.; Schlische, Roy W.; Take, Andy; Vendeville, Bruno; Vergnaud, Marine; Vettori, Matteo; Wang, Shih-hsien; Withjack, Martha O.; Yagupsky, Daniel; Yamada, Yasuhiro.
We performed a quantitative comparison of brittle thrust wedge experiments to evaluate the variability among analogue models and to appraise the reproducibility and limits of model interpretation. Fifteen analogue modeling laboratories participated in this benchmark initiative. Each laboratory received a shipment of the same type of quartz and corundum sand and all laboratories adhered to a stringent model building protocol and used the same type of foil to cover base and sidewalls of the sandbox. Sieve structure, sifting height, filling rate, and details on off-scraping of excess sand followed prescribed procedures. Our analogue benchmark shows that even for simple plane-strain experiments with prescribed stringent model construction techniques,...
Tipo: Text Palavras-chave: Thrust wedges; Brittle wedges; Shear zones; Analogue modeling; Benchmarking; Critical taper; Sand; Friction; Cohesion.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00359/47011/51118.pdf
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