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Université de Fribourg

Geochemical fingerprinting of key lithologies and depositional processes across the upper boundary of the Opalinus Clay (Aalenian, Middle Jurassic, northern Switzerland)

Lauper, Bruno ; Deplazes, Gaudenz ; Vogel, Hendrik ; Jaeggi, David ; Wohlwend, Stephan ; Ariztegui, Daniel ; Foubert, Anneleen

In: The Depositional Record, 2021, vol. 7, no. 1, p. 25-51

The Opalinus Clay is an argillaceous to silty mudstone formation, notable in Switzerland as the selected host rock for deep geological disposal of radioactive waste. Its upper bounding unit (Passwang Formation and eastern equivalents) is composed of successions of mudstone, sandy bioclastic marl and limestone separated by ooidal ironstone beds. The lithostratigraphic transition is diachronous...

Université de Fribourg

Comparative analysis of the shape and size of the middle ear cavity of turtles reveals no correlation with habitat ecology

Foth, Christian ; Evers, Serjoscha W. ; Joyce, Walter G. ; Volpato, Virginie S. ; Benson, Roger B. J.

In: Journal of Anatomy, 2019, no. 0, p. -

The middle ear of turtles differs from other reptiles in being separated into two distinct compartments. Several ideas have been proposed as to why the middle ear is compartmentalized in turtles, most suggesting a relationship with underwater hearing. Extant turtle species span fully marine to strictly terrestrial habitats, and ecomorphological hypotheses of turtle hearing predict that this...

Université de Fribourg

Editorial - Erosion of the Middle Class?

Budowski, Monica ; Schief, Sebastian

In: sozialpolitik.ch, 2019, vol. 1, no. 1, p. Article: 1.1

Université de Fribourg

Pleistocene sea-floor fibrous crusts and spherulites in the Danakil Depression (Afar, Ethiopia)

Jaramillo‐Vogel, David ; Foubert, Anneleen ; Braga, Juan Carlos ; Schaegis, Jean‐Charles ; Atnafu, Balemwal ; Grobéty, Bernard ; Kidane, Tesfaye

In: Sedimentology, 2019, vol. 66, no. 2, p. 480–512

Pleistocene fibrous aragonite fabrics, including crusts and spherules, occur in the Danakil Depression (Afar, Ethiopia) following the deposition of two distinctive Middle and Late Pleistocene coralgal reef units and pre‐dating the precipitation of evaporites. Crusts on top of the oldest reef unit (Marine Isotope Stage 7) cover and fill cavities within a red algal framework. The younger...

Université de Fribourg

Origin and age of carbonate clasts from the Lusi eruption, Java, Indonesia

Samankassou, Elias ; Mazzini, Adriano ; Chiaradia, Massimo ; Spezzaferri, Silvia ; Moscariello, Andrea ; Couto, Damien Do

In: Marine and Petroleum Geology, 2018, vol. 90, p. 138–148

Deep stratigraphic constrains below the Indonesian Lusi mud eruption are currently lacking due to the absence of deep wells and good quality seismic data. A collection of carbonate clasts has been sampled from the Lusi site, active since its birth in 2006. These specimens are part of a large variety of lithotypes erupted from the main crater. The carbonates analysed comprise scleractinian...

Université de Fribourg

Remarks on the Visual Experience of Holy Sites in the Middle Ages

Bacci, Michele

In: Mobile Eyes. Peripatetisches Sehen in den Bildkulturen der Vormoderne, 2013, p. 175-197

Université de Fribourg

Unappreciated diversification of stem archosaurs during the Middle Triassic predated the dominance of dinosaurs

Foth, Christian ; Ezcurra, Martín D. ; Sookias, Roland B. ; Brusatte, Stephen L. ; Butler, Richard J.

In: BMC Evolutionary Biology, 2016, vol. 16, p. 188

Archosauromorpha originated in the middle–late Permian, radiated during the Triassic, and gave rise to the crown group Archosauria, a highly successful clade of reptiles in terrestrial ecosystems over the last 250 million years. However, scientific attention has mainly focused on the diversification of archosaurs, while their stem lineage (i.e. non- archosaurian archosauromorphs) has often...

Université de Fribourg

Origin of micropores In late jurassic (Oxfordian) micrites of the eastern Paris basin, France

Carpentier, Cédric ; Ferry, Serge ; Lécuyer, Christophe ; Strasser, André ; Géraud, Yves ; Trouiller, Alain

In: Journal of Sedimentary Research, 2015, vol. 85, no. 6, p. 660–682

Porous micritic facies, either primary chalks or resulting from secondary destructive micritization, can constitute important hydrocarbon or water reservoirs. Characterization of reservoir properties and the understanding of factors which controlled the distribution of porosity are of primary interest to evaluate the prospective reserves. Middle and late Oxfordian limestones of the eastern Paris...

Bibliothèque cantonale jurassienne

Archosaur evolution during the Jurassic : a southern perspective

Rauhut, Oliver W.M ; López-Arbarello, Adriana

In: Revista de la Asociación Geológica Argentina, 2008, vol. 63, no. 4, p. 557-585