Evaluación de los efectos diagenéticos en la relación 87Sr/86Sr en conchas de rudistas y Chondrodonta sp. de las calizas rojas del Aptiense – Albiense inferior de Ereño (Bizkaia)
87Sr/86Sr isotopic ratios measured on rudist and Chondrodonta sp. shells from upper Aptian – lower Albian red limestones of Ereño (Bizkaia) reveal different degrees of diagenetic alteration when compared to coeval values. Chondrodonta sp. and requienid shells show a better degree of chemical preserv...
| Autores: | , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2008 |
| 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:10272/8257 |
| Acceso en línea: | http://hdl.handle.net/10272/8257 |
| Access Level: | acceso abierto |
| Palabra clave: | Strontium isotopes Rudist Middle Cretaceous Diagenetic degree |
| Sumario: | 87Sr/86Sr isotopic ratios measured on rudist and Chondrodonta sp. shells from upper Aptian – lower Albian red limestones of Ereño (Bizkaia) reveal different degrees of diagenetic alteration when compared to coeval values. Chondrodonta sp. and requienid shells show a better degree of chemical preservation, whereas caprotinid and monopleurid shells seem to be more affected by diagenetic fluids. The same conclusion can be obtained when 87Sr/86Sr values are plotted against cationic contents in Sr, Na, Mg, Fe and Mn |
|---|