Incremento lateral hacia el Oeste del grado diagenètico en el Maastrichtiense medio del Arco Vasco: evidencias en inocerámidos y roca encajante
Inoceramid bivalve shells and host-rock samples from the mid-Maastrichtian carbonate rocks have been collected at Sopelana, Zumaya, San Sebastián, Loyaand Bidart sections (So-Zu-Ss-Lo-Bi), corresponding to the Basque Arc Domain. The main purpose was to determinate the progressive post-depositional c...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 1997 |
| País: | España |
| Institución: | Universidad de Huelva (UHU) |
| Repositorio: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Idioma: | español |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/10314 |
| Acceso en línea: | http://hdl.handle.net/10272/10314 |
| Access Level: | acceso abierto |
| Palabra clave: | Cathodoluminescence Diagenesis Inoceramids Maastrichtian Stable isotopes Basque Arc |
| Sumario: | Inoceramid bivalve shells and host-rock samples from the mid-Maastrichtian carbonate rocks have been collected at Sopelana, Zumaya, San Sebastián, Loyaand Bidart sections (So-Zu-Ss-Lo-Bi), corresponding to the Basque Arc Domain. The main purpose was to determinate the progressive post-depositional changes suffered by the shells together with the marl and marly-limestone beds. Petrography, scanning electron microscope (SEM) and cathodoluminiscence (CL) observations, as well as oxygen and carbon isotopic values show that calcite prisms, which form the shell microstructure, have undergone a more intense diagenetic modification in the western (Sopelana section) than in the eastern areas (Bidart section) of the Basque Arc, without any substantial textural changes in the prismatic microstructure |
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