Analysis of tectonic-controlled fluvial morphology and sedimentary processes of the western Amazon Basin: an approach using satellite images and digital elevation model
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| Natura: | Artículo científico |
| Lingua: | en |
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Academia Brasileira de Ciências
2007
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| _version_ | 1876455181195935744 |
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| author | Norberto Morales |
| author_facet | Norberto Morales |
| contents | Analysis of tectonic-controlled fluvial morphology and sedimentary processes of the western Amazon Basin: an approach using satellite images and digital elevation model Norberto Morales Clauzionor Lima da Silva Alvaro P. Crósta Solange S. Costa Jairo R. Jiménez-Rueda Multidisciplinaria (Ciencias Naturales y Exactas) neotectonics Amazon Basin morphotectonics morphostructural An investigation of the tectonic controls of the fluvial morphology and sedimentary processes of an area locatedsouthwest of Manaus in the Amazon Basin was conducted using orbital remote sensing data. In this region, low topographicgradients represent a major obstacle for morphotectonic analysis using conventional methods. The use of remotesensing data can contribute significantly to overcome this limitation. In this instance, remote sensing data compriseddigital elevation model (DEM) acquired by the Shuttle Radar Topographic Mission (SRTM) and Landsat ThematicMapper images. Advanced image processing techniques were employed for enhancing the topographic textures andproviding a three-dimensional visualization, hence allowing interpretation of the morphotectonic elements. This ledto the recognition of main tectonic compartments and several morphostructural features and landforms related to theneotectonic evolution of this portion of the Amazon Basin. Features such as fault scarps, anomalous drainage patterns,aligned ridges, spurs and valleys, are expressed in the enhanced images as conspicuous lineaments along NE-SW, NWSE,E-W and N-S directions. These features are associated to the geometry of alternated horst and graben structures, thelatter filled by recent sedimentary units. Morphotectonic interpretation using this approach has proven to be efficient andpermitted to recognize new tectonic features that were named Asymmetric Ariaú Graben, Rombohedral ManacapuruBasin and Castanho-Mamori Graben. 2007 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32779410 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.4 Vol.79 |
| format | Artículo científico |
| id | redalyc_32779410 |
| institution | Redalyc |
| language | en |
| publishDate | 2007 |
| publisher | Academia Brasileira de Ciências |
| spellingShingle | Analysis of tectonic-controlled fluvial morphology and sedimentary processes of the western Amazon Basin: an approach using satellite images and digital elevation model Norberto Morales Multidisciplinaria (Ciencias Naturales y Exactas) neotectonics Amazon Basin morphotectonics morphostructural Analysis of tectonic-controlled fluvial morphology and sedimentary processes of the western Amazon Basin: an approach using satellite images and digital elevation model Norberto Morales Clauzionor Lima da Silva Alvaro P. Crósta Solange S. Costa Jairo R. Jiménez-Rueda Multidisciplinaria (Ciencias Naturales y Exactas) neotectonics Amazon Basin morphotectonics morphostructural An investigation of the tectonic controls of the fluvial morphology and sedimentary processes of an area locatedsouthwest of Manaus in the Amazon Basin was conducted using orbital remote sensing data. In this region, low topographicgradients represent a major obstacle for morphotectonic analysis using conventional methods. The use of remotesensing data can contribute significantly to overcome this limitation. In this instance, remote sensing data compriseddigital elevation model (DEM) acquired by the Shuttle Radar Topographic Mission (SRTM) and Landsat ThematicMapper images. Advanced image processing techniques were employed for enhancing the topographic textures andproviding a three-dimensional visualization, hence allowing interpretation of the morphotectonic elements. This ledto the recognition of main tectonic compartments and several morphostructural features and landforms related to theneotectonic evolution of this portion of the Amazon Basin. Features such as fault scarps, anomalous drainage patterns,aligned ridges, spurs and valleys, are expressed in the enhanced images as conspicuous lineaments along NE-SW, NWSE,E-W and N-S directions. These features are associated to the geometry of alternated horst and graben structures, thelatter filled by recent sedimentary units. Morphotectonic interpretation using this approach has proven to be efficient andpermitted to recognize new tectonic features that were named Asymmetric Ariaú Graben, Rombohedral ManacapuruBasin and Castanho-Mamori Graben. 2007 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32779410 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.4 Vol.79 |
| title | Analysis of tectonic-controlled fluvial morphology and sedimentary processes of the western Amazon Basin: an approach using satellite images and digital elevation model |
| topic | Multidisciplinaria (Ciencias Naturales y Exactas) neotectonics Amazon Basin morphotectonics morphostructural |
| url | https://www.redalyc.org/articulo.oa?id=32779410 |