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Título: | Erosión y desertificación.-Minor Forms in a Badlands Landscape Framework |
Fecha de defensa / creación: | sep-2009 |
Materias relacionadas: | CDU::5 - Ciencias puras y naturales::55 - Geología. Meteorología |
Palabras clave: | Badlands slips dimples micro-collapses pinnacles |
Resumen: | ABSTRACT We describe and classify some medium-scale erosional morphologies in badlands areas. They have been categorized in three different types: A) Surficial forms on horizontal surfaces (soil surface crusts, cracks, popcorn) and walls (“slips”, pseudo-stalactites). B) Punctual fingerprints: rain impact and micro-collapses (dimples). C) Ruiniform morphologies (caves, shelters, residual pinnacles). The A-type shapes are caused by damping-desiccation phenomena on clayey soils; morphologies on walls are due to laminar runoff on weak lithologies (clay, loam), also dubbed pseudo-speleothemes. Their scale is centimetricdecimetric. B-type forms may be an external passive process (impact) or an internal dynamic process (dimples) occurring in granular sediments inside shelters, in conditions of apparent calm, measuring up to a few centimetres. The caves and shelters of type C generally involve an excavation following stratification or jointing planes, while the residual pinnacles are vertical forms linked to advanced piping and fluting. Both forms are decametric in scale. |
Autor/es principal/es: | Díaz-Hernández, J.L. Yepes, J. Romero-Díaz, A. |
Facultad/Departamentos/Servicios: | Universidad de Murcia |
Forma parte de: | Congreso Internacional sobre desertificación |
URI: | http://hdl.handle.net/10201/97106 |
Tipo de documento: | info:eu-repo/semantics/other |
Número páginas / Extensión: | 4 |
Derechos: | info:eu-repo/semantics/openAccess Attribution-NonCommercial-NoDerivatives 4.0 International |
Aparece en las colecciones: | Congreso Internacional sobre Desertificación. |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
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Minor Forms in a Badlands Landscape Framework .pdf | 323,15 kB | Adobe PDF | Visualizar/Abrir |
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