Document type
Conference papers
Document subtype
Extended abstract/Short paper
Title
Cyclicity in an overall regressive trend – an integrated approach to a Late Jurassic shallow marine succession North of São Martinho do Porto (Lusitanian Basin)
Participants in the publication
Diogo Barros (Author)
Marília Zimmermann (Author)
Jorge Magalhães (Author)
Nuno Pimentel (Author)
Dep. Geologia
IDL
Summary
This work addresses the depositional palaeoenvironment and the sequence stratigraphy of\\nan Upper Jurassic succession outcropping at Gralha Beach, located North of São Martinho do Porto\\nbay. The most abundant lithofacies are claystones and siltstones, followed by sandstones, palaeosols,\\nwackestones, and marls. Calcimetry, X-Ray diffraction, fossil content and facies analyses suggest that\\nthe whole interval was deposited in a low-energy, shallow marine environment. Carbonate and\\nmarine fossils are abundant at the lower portion, whereas oxidized claystone/siltstone and\\npalaeosols prevail towards the top. The integration of all available data allowed the identification of\\nmultiple different order sequences, indicating an upward overall regressive pattern.
Editor(s)
Vânia Silva, Adriana Batista, Mário Silva
Date of Publication
2019-10-25
Institution
FACULDADE DE CIÊNCIAS DA UNIVERSIDADE DE LISBOA
Event
LEG 2019 - IX Congresso Jovens Investigadores em Geociências
Publication Identifiers
Address
Estremoz
Organizers
Instituto de Ciências da Terra
Publisher
Centro de Ciência Viva de Estremoz
Collection
Actas LEG
Number of pages
4
Starting page
47
Last page
50