Université de Fribourg

Bryozoan beds in northern Italy as a shallow-water expression of environmental changes during the Oligocene isotope event 1

Jaramillo-Vogel, David ; Bover-Arnal, Telm ; Strasser, André

In: Sedimentary Geology, 2016, vol. 331, p. 148–161

Shifts in carbonate-producing biotic communities in the geological record provide evidence of past environmental changes in the neritic realm. The shallow-marine Calcare di Nago Formation exposed in the San Valentino section (northern Italy) covers the Late Eocene and Earliest Oligocene. The succession is characterized by the occurrence of light-dependent biota such as coralline algae and larger...

Université de Fribourg

The Upper Aptian to Lower Albian syn-rift carbonate succession of the southern Maestrat Basin (Spain): Facies architecture and fault-controlled stratabound dolostones

Martín-Martín, J.D. ; Gomez-Rivas, E. ; Bover-Arnal, Telm ; Travé, A. ; Salas, R. ; Moreno-Bedmar, J.A. ; Tomás, Sara ; Corbella, M. ; Teixell, A. ; Vergés, J. ; Stafford, S.L.

In: Cretaceous Research, 2013, vol. 41, p. 217-236

Syn-rift shallow-marine carbonates of Late Aptian to Early Albian age in the southern Maestrat Basin (E Spain) register the thickest Aptian sedimentary record of the basin, and one of the most complete carbonate successions of this age reported in the northern Tethyan margin. The host limestones (Benassal Formation) are partially replaced by dolostones providing a new case study of...

Université de Fribourg

Late Eocene transgressive sedimentation in the western Swiss Alps: Records of autochthonous and quasi-autochthonous biofacies on a karstic rocky shore

Bover-Arnal, Telm ; Jaramillo-Vogel, David ; Showani, Aso ; Strasser, André

In: Palaeogeography, Palaeoclimatology, Palaeoecology, 2011, vol. 312, no. 1-2, p. 24-39

Carbonate karst unconformities represent primary sequence-stratigraphic boundaries but, where sealed by marine sedimentary successions, also signify ancient rocky shores. During the Late Eocene (Priabonian), a shallow sea flooded the deeply karstified and brecciated Cretaceous carbonate bedrocks of the western Swiss Alps. Transgression resulted in the formation of a rocky archipelago of basement...