Datación de niveles condensados: Precisiones cronoestratigráficas utilizando estratigrafía de isótopos de Sr
The values of the ratio 87Sr / 86Sr in 16 belemnites samples from three sections of the upper part of the Gavilán Fm. of the Subbetic chain are analyzed. Elemental and C and O stable isotopes analysis were also made focused to test the preservation of primary marine calcite. The results of this stud...
| Autores: | , , , |
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| Formato: | artículo |
| Fecha de publicación: | 2005 |
| País: | España |
| Recursos: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | español |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/115250 |
| Acesso em linha: | https://hdl.handle.net/20.500.14352/115250 |
| Access Level: | acceso abierto |
| Palavra-chave: | 551.7"622.426"(460.35) Subbetic Pliensbachian condensed level Sr isotopes reelaboration Geología estratigráfica 2506.19 Estratigrafía |
| Resumo: | The values of the ratio 87Sr / 86Sr in 16 belemnites samples from three sections of the upper part of the Gavilán Fm. of the Subbetic chain are analyzed. Elemental and C and O stable isotopes analysis were also made focused to test the preservation of primary marine calcite. The results of this study confirm the chronostratigraphy significance of Sr Isotope Stratigraphy from Pliensbachian belemnites. The interpretation of the results elucidates the age of the hardground or condensed level that supplies the belemnites rostra after adjusting the 87Sr / 86Sr ratio to pre-existing curves. |
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