The Orthaspidoceras uhlandi (Oppel) record and the maximum flooding in the Eastern Algarve during the Lower Kimmeridgian

Autores/as

  • Beatriz Marques Universidad de Valencia
  • Federico Olóriz Saez Universidad de Granada

DOI:

https://doi.org/10.7203/sjp.25025

Palabras clave:

Ammonites, Biostratigraphy, Eustasy, Upper Jurassic, Lower Kimmeridgian, Algarve, South Portugal.

Resumen

Detailed field work on Upper Jurassic outcrops in all of the eastern Algarve Basin, together with puntual observa­tions, leads to the improvement of our knowledge of the Lower Kimmeridgian in the area. The sediments belong to the Peral Formation, the upper part of which shows buildup remains dominated by sponges and algae, and to the lowermost Jordana Fm. The previously favourable environment for ammonites therefore decreased. The consistent ammonite record in the Divisum Zone (Uhlandi Subzone), within or directly above reefal com­plexes or related sediments, is taken as proof of an episodic improvement of the environment for cephalopods. This event coincides well with the transgressive interval in the eustatic curves proposed by the Exxon Group, and especially with the maximum flooding of the epicontinental eastern Algarve Basin during the uppermost Lower Kim­meridgian.

Descargas

Los datos de descargas todavía no están disponibles.

Descargas

Publicado

2022-08-10

Cómo citar

Marques, B., & Olóriz Saez, F. (2022). The Orthaspidoceras uhlandi (Oppel) record and the maximum flooding in the Eastern Algarve during the Lower Kimmeridgian. Spanish Journal of Palaeontology, 7(3), 149–156. https://doi.org/10.7203/sjp.25025
Metrics
Vistas/Descargas
  • Resumen
    399
  • PDF
    86

Métrica

Artículos similares

1 2 3 4 5 6 7 8 9 10 > >> 

También puede Iniciar una búsqueda de similitud avanzada para este artículo.