d13C and d18O-based interpretation of Miocene carbonates of the Miranda-Trebiño basin, NE Iberia: preliminary insights
Larena, Zuriñe ; Arenas, Concha (Universidad de Zaragoza) ; Murelaga, Xabier ; Baceta, Juan Ignacio
Resumen: The stable isotopes (C and O), bulk mineralogy and sedimentary facies types of the Miocene lacustrine palustrine carbonates of the Cucho Section (Miranda-Trebiño basin, N Iberia) are studied. The results indicate deposition in a freshwater carbonate lake recording significant biogenic CO2 input, changing Precipitation/Evaporation rates and variations in vegetation cover and pedogenesis on palustrine areas. Short-lived stages of higher salinity and evaporative conditions are recorded by the relative abundance of fine-grained dolomite. The highest δ13C values suggest 12C sequestration in anoxic bottom waters due to water column stratification. These new data support the general deepening trend of the lake system established from previous sedimentological analyses.
Idioma: Inglés
DOI: 10.55407/geogaceta104481
Año: 2024
Publicado en: Geogaceta 76 (2024), 19-22
ISSN: 0213-683X
Tipo y forma: Article (Published version)
Área (Departamento): Área Estratigrafía (Dpto. Ciencias de la Tierra)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
Exportado de SIDERAL (2025-01-16-14:32:36)
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Idioma: Inglés
DOI: 10.55407/geogaceta104481
Año: 2024
Publicado en: Geogaceta 76 (2024), 19-22
ISSN: 0213-683X
Tipo y forma: Article (Published version)
Área (Departamento): Área Estratigrafía (Dpto. Ciencias de la Tierra)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original. Exportado de SIDERAL (2025-01-16-14:32:36)
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Record created 2025-01-16, last modified 2025-01-16