Espesores y contenido de CaCO3 en los pares marga-caliza del Daniense (Sopelana, Arco Vasco)
The Sopelana sea-cliff section exposes, a continuous marl-limestone alternation from the Danes in the deep Basque Arc domain. The 95 rhythms studied represent ~1180 ka and correspond to ~20cm/20ka. The limestone layers are thicker than marls and the Fischer diagram detects several shifts of high sed...
| Autores: | , , , , , |
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| Formato: | artículo |
| Fecha de publicación: | 2006 |
| País: | España |
| Recursos: | Universidad de Huelva (UHU) |
| Repositorio: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Idioma: | español |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/8467 |
| Acesso em linha: | http://hdl.handle.net/10272/8467 |
| Access Level: | acceso abierto |
| Palavra-chave: | Cyclostratigraphy Marl/limestone couplets Automatic calcimeter Danes |
| Resumo: | The Sopelana sea-cliff section exposes, a continuous marl-limestone alternation from the Danes in the deep Basque Arc domain. The 95 rhythms studied represent ~1180 ka and correspond to ~20cm/20ka. The limestone layers are thicker than marls and the Fischer diagram detects several shifts of high sedimentation and some well-marked minimums. The high-resolution of the twelve limestone layers (<1cm/analysis; 317 analysis, 3.06 m) shows complex curves indicative of climatic fluctuations. The pink-white colour variations are indicative of accidental oxygenated water masses presence, without diagenesis influence |
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