Chemostratigraphy of a Mixed Upper Cretaceous Carbonate-Siliciclastic Succession (Southern Pyrenees): Geochemical Proxies for Sedimentological Interpretations
The chemostratigraphy of the growth strata related to the growth of the Sant Corneli-Bóixols anticline, reveals the sedimentary environment evolution of these syn-orogenic sediments. The decrease of Y/Ho ratios throughout the succession from typical open marine values to nearshore values indicates t...
| Autores: | , , , , , |
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| Tipo de recurso: | otro |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2023 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/352757 |
| Acceso en línea: | http://hdl.handle.net/10261/352757 |
| Access Level: | acceso embargado |
| Palabra clave: | Chemostratigraphy Mixed carbonate-siliciclastic Succession Southern Pyrenees Sedimentological interpretations |
| Sumario: | The chemostratigraphy of the growth strata related to the growth of the Sant Corneli-Bóixols anticline, reveals the sedimentary environment evolution of these syn-orogenic sediments. The decrease of Y/Ho ratios throughout the succession from typical open marine values to nearshore values indicates the shallowing upward trend of the growth strata and the progressive input of siliciclastic sediments from emerged areas. The depletion in d 13 C and d 18 O, the decrease in the Sr and Mg contents, and the Mg/Ca molar ratios reveal the freshwater input into shallower environments. The results correlate well with the previous sedimentological interpretations of the studied succession. They also support the combination of the elemental and isotopic composition of carbonates to interpret depositional environments in non-continuous subsurface reservoirs and seal rocks. |
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