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Université de Fribourg

Palynological study of carbonated mounds during the holocene along the atlantic and mediterranean moroccan margins

Rachid, Jihad ; Hssaida, Touria ; Hamoumi, Naima ; Terhzaz, Loubna ; Spezzaferri, Silvia ; Frank, Norbert ; Daghor, Lamia

In: Review of Palaeobotany and Palynology, 2020, vol. 278, p. 104213

A palynological study of carbonate mounds of Atlantic and Mediterranean Moroccan margins was conducted on sediment boxcores MD13-3441, MD13-3456, MD13-3461, MD13-3465, MD13-3468 collected during the oceanographic cruise MD 194/Eurofleet - GATEWAY, which took place on June 2013.The organic remaining revealed a dominance of dinoflagellate cysts over the continental fraction, which showed very...

Université de Fribourg

Tectonics of the Neuchâtel Jura Mountains: insights from mapping and forward modelling

Rime, Valentin ; Sommaruga, Anna ; Schori, Marc ; Mosar, Jon

In: Swiss Journal of Geosciences, 2019, vol. 112, no. 2, p. 563–578

This study focuses on a geological section in the Jura Mountains across the villages of Travers, La Brévine in Switzerland, and Morteau in France. Field mapping was conducted to complement and densify existing data. A kinematically and geometrically consistent forward model has been developed to understand and interpret the observed surface structures. The proposed solution features a...

Université de Fribourg

Possible species-flock scenario for the evolution of the cyprinid genus Capoeta (Cypriniformes: Cyprinidae) within late Neogene lake systems of the Armenian Highland

Ayvazyan, Anna ; Vasilyan, Davit ; Böhme, Madelaine

In: PLOS ONE, 2019, vol. 14, no. 5, p. e0215543

We studied 4 Ma old isolated pharyngeal teeth from lake sediments of Çevirme (Tekman Palaeolake, Erzurum Province). Based on shape characters defined for 3D models of modern species, we found that the Pliocene lake constitutes sympatric occurrence of four Capoeta species (C. cf. umbla, C. cf. baliki, C. cf. sieboldi and C. sp. sevangi/capoeta), whose modern relatives belong to a monophyletic...

Consortium of Swiss Academic Libraries

Cretaceous syn-sedimentary faulting in the Wildhorn Nappe (SW Switzerland)

Cardello, G. ; Mancktelow, Neil

In: Swiss Journal of Geosciences, 2014, vol. 107, no. 2-3, p. 223-250

Université de Fribourg

Intra and extracellular journey of the phytohormone salicylic acid

Maruri-López, Israel ; Aviles-Baltazar, Norma Yaniri ; Buchala, Antony J. ; Serrano, Mario

In: Frontiers in Plant Science, 2019, vol. 10, p. -

Salicylic acid (SA) is a plant hormone that has been described to play an essential role in the activation and regulation of multiple responses to biotic and to abiotic stresses. In particular, during plant-microbe interactions, as part of the defense mechanisms, SA is initially accumulated at the local infected tissue and then spread all over the plant to induce systemic acquired resistance...

Université de Fribourg

Downslope-shifting pockmarks: interplay between hydrocarbon leakage, sedimentations, currents and slope’s topography

Ho, Sutieng ; Imbert, Patrice ; Hovland, Martin ; Wetzel, Andreas ; Blouet, Jean-Philippe ; Carruthers, Daniel

In: International Journal of Earth Sciences, 2018, vol. 107, no. 8, p. 2907–2929

Pockmarks in Pliocene-Quaternary continental slope deposits offshore Angola show features related to: (1) fluid leakage craters that formed repeatedly, (2) authigenic methane-derived carbonates that indicate the (former) presence of hydrocarbons and (3) erosional–depositional structures that are clearly related to current activity. Depending on topography, the pockmarks show differing...

Université de Fribourg

Carbonate mounds of the Moroccan Mediterranean margin: Facies and environmental controls

Terhzaz, Loubna ; Hamoumi, Naima ; Spezzaferri, Silvia ; El Lotfi, Mostapha ; Henriet, Jean-Pierre

In: Comptes Rendus Geoscience, 2018, vol. 350, no. 5, p. 212–221

Sedimentological and geochemical studies of boxcores from the Brittlestar Ridge I and Cabliers carbonate mounds, along the Moroccan Mediterranean margin, show that sediments are composed of cold water scleratian corals and micritic mud, muddy micrite or muddy allochem limestone matrix, outlining seven different facies that can be attributed to “cluster reefs”. The mixed...