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Title: Geometry and kinematics of experimental antiformal stacks.
Authors: Gomes, Caroline Janette Souza
Ferreira, Juliano Efigênio
Keywords: Basement structures
Slightly dipping basal detachment
Sand layer thickness
Basal friction
Issue Date: 2000
Citation: GOMES, C. J. S.; FERREIRA, J. E. Geometry and kinematics of experimental antiformal stacks. Anais da Academia Brasileira de Ciências, v. 72, n.2, p. 195-217, 2000. Disponível em: <>. Acesso em: 12 nov. 2015.
Abstract: Sandbox experiments with different boundary conditions demonstrate that antiformal stacks result from a forward-breaking thrust sequence. An obstacle blocks forward thrust propagation and transfers the deformation back to the hinterland in a previously formed true duplex. In the hinterland, continued shortening causes faults to merge toward the tectonic transport direction until the older thrusts override the younger thrusts. In experiments using thin sand layers or high basal friction, shortening is accommodated by a cyclic process of thrusting, back rotation of the newly formed thrust combined with strong vertical strain, and nucleation of a new thrust. Continuous deformation produces an antiformal stack through progressive convergence of branch lines.
ISSN: 1678-2690
metadata.dc.rights.license: Todo o conteúdo do periódico Anais da Academia Brasileira de Ciências, exceto onde identificado, está sob uma licença Creative Commons que permite copiar, distribuir e transmitir o trabalho em qualquer suporte ou formato desde que sejam citados o autor e o licenciante. Não permite o uso para fins comerciais. Fonte: Anais da Academia Brasileira de Ciências <>. Acesso em: 20 ago. 2019.
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