Geometry and kinematics of experimental antiformal stacks
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| Format: | Artículo científico |
| Language: | en |
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Academia Brasileira de Ciências
2000
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| _version_ | 1876479034586562560 |
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| author | Caroline Janette Gomes Souza |
| author_facet | Caroline Janette Gomes Souza |
| contents | Geometry and kinematics of experimental antiformal stacks Caroline Janette Gomes Souza Juliano Efigênio Ferreira Multidisciplinaria (Ciencias Naturales y Exactas) basal friction basement structures sand layer thickness slightly dipping basal detachment Sandbox experiments with different boundary conditions demonstrate that antiformal stacks result from aforward-breaking thrust sequence. An obstacle blocks forward thrust propagation and transfers the deformationback to the hinterland in a previously formed true duplex. In the hinterland, continued shortening causesfaults to merge toward the tectonic transport direction until the older thrusts override the younger thrusts. Inexperiments using thin sand layers or high basal friction, shortening is accommodated by a cyclic processof thrusting, back rotation of the newly formed thrust combined with strong vertical strain, and nucleationof a new thrust. Continuous deformation produces an antiformal stack through progressive convergence ofbranch lines. 2000 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32772208 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.2 Vol.72 |
| format | Artículo científico |
| id | redalyc_32772208 |
| institution | Redalyc |
| language | en |
| publishDate | 2000 |
| publisher | Academia Brasileira de Ciências |
| spellingShingle | Geometry and kinematics of experimental antiformal stacks Caroline Janette Gomes Souza Multidisciplinaria (Ciencias Naturales y Exactas) basal friction basement structures sand layer thickness slightly dipping basal detachment Geometry and kinematics of experimental antiformal stacks Caroline Janette Gomes Souza Juliano Efigênio Ferreira Multidisciplinaria (Ciencias Naturales y Exactas) basal friction basement structures sand layer thickness slightly dipping basal detachment Sandbox experiments with different boundary conditions demonstrate that antiformal stacks result from aforward-breaking thrust sequence. An obstacle blocks forward thrust propagation and transfers the deformationback to the hinterland in a previously formed true duplex. In the hinterland, continued shortening causesfaults to merge toward the tectonic transport direction until the older thrusts override the younger thrusts. Inexperiments using thin sand layers or high basal friction, shortening is accommodated by a cyclic processof thrusting, back rotation of the newly formed thrust combined with strong vertical strain, and nucleationof a new thrust. Continuous deformation produces an antiformal stack through progressive convergence ofbranch lines. 2000 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32772208 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.2 Vol.72 |
| title | Geometry and kinematics of experimental antiformal stacks |
| topic | Multidisciplinaria (Ciencias Naturales y Exactas) basal friction basement structures sand layer thickness slightly dipping basal detachment |
| url | https://www.redalyc.org/articulo.oa?id=32772208 |