Scientific program

The meeting will be hosted by the Department of Earth Sciences of the University of Coimbra and will take place from the 6 to 9th of September 2018. Activities will consist of a one-day scientific session, followed by a two-day field excursion (The Toarcian Oceanic Anoxic Event in the Western Iberian Margin and its context within the Lower Jurassic evolution of the Lusitanian Basin). The final day will be dedicated to a post-meeting short training course which will focus on organic matter characterisation in anoxic marine facies.

September 6th

The SCIENTIFIC SESSIONS of the workshop will be carried out in parallel with the special session of the IX Symposium on the Iberian Atlantic Margin entitled “Mesozoic OAEs and their impact on ecosystems and biogeochemical cycles” (https://mia2018univcoimbra.wixsite.com/mia2018en). Participants are invited to present their work as oral or poster communications. Authors must indicate their preferred format for presentation (oral or poster) however, the final decision belongs to the Scientific Committee and will be based on the number and quality of submitted abstracts.

September 7th

FIELDTRIP: We will visit the Peniche and S. Pedro de Moel sections, two of the most important references for the study of the Lower Jurassic in Portugal. In addition to the discussion of the Pliensbachian–Toarcian transition (Toarcian GSSP) and the singular record of the TOAE time interval at Peniche, supported by global geochemical and palaeontological signatures, we will present and discuss aspects related to facies and depositional changes, including the organic-rich deposits particularly well recorded in the Sinemurian–Pliensbachian of S. Pedro de Moel area.

 

Attention: We will return to Coimbra this day.

Fig 1

Uppermost Pliensbachian–lowermost Toarcian marl–limestone alternations at Ponta do Trovão and Abalo beach (Peniche section).

Fig. 2

Uppermost Sinemurian–lowermost Pliensbachian organic-rich deposits in the S. Pedro de Moel area (Polvoeira-Pedra do Ouro section).

September 8th

FIELDTRIP: The second day of the field trip will be centred near Coimbra, Penela and Cantanhede, which included some of the most representative Lower Jurassic sections of the northern part of the Lusitanian Basin, such as Fonte Coberta and Maria Pares. The highlight will be the upper Pliensbachian–upper Toarcian successions regarding facies, sedimentological and macro-invertebrate (ammonites and benthic fauna) evolution. A central point of discussion concerns to the sedimentological variability observed in the basin across the Polymorphum–Levisoni chronozone boundary.

Attention: We will return to Coimbra this day.

Fig. 3

Lower Toarcian carbonate deposits in the Fonte Coberta section.

Fig. 4

Bioturbated thin nodular limestone facies of the extreme base of Levisoni Chronozone cropping out at Cantanhede.

September 9th

Post-meeting SHORT TRAINING COURSE “Organic matter characterization in anoxic marine facies: palynofacies and organic geochemistry approaches” by Prof. João Graciano Mendonça Filho (Federal University of Rio de Janeiro, Brazil).