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Université de Fribourg

Upper Carboniferous-Lower Permian buildups of the Carnic Alps, Austria-Italy

Samankassou, Elias

In: Permo-Carboniferous Carbonate Platforms and Reefs, 2003, p. 201-217

A variety of buildup types occur in the upper Paleozoic Auernig and Rattendorf Groups, Carnic Alps, at the present-day Austrian–Italian border, including coral, diverse algal (Anthracoporella, Archaeolithophyllum, Rectangulina, and phylloid green), bryozoan, brachiopod, and sponge buildups. Thin mounds and banks have a diverse fossil association (e.g., ...

Université de Fribourg

Construction versus accumulation in phylloid algal mounds: an example of a small constructed mound in the Pennsylvanian of Kansas, USA

Samankassou, Elias ; West, Ronald R.

In: Palaeogeography, Palaeoclimatology, Palaeoecology, 2002, vol. 185(3-4), p. 379

Most phylloid algal mounds are currently interpreted as no more than accumulations of leaf-like thalli supported by mud. We report here phylloid algae from the Upper Pennsylvanian (Late Carboniferous) Frisbie Limestone Member in Kansas, USA, which built small mounds with recognizable primary topographic relief. Cup-shaped algal thalli, growing closely packed and juxtaposed near and above one...

Université de Fribourg

Internal structure and depositional environment of Late Carboniferous mounds from the San Emiliano Formation, Cármenes Syncline, Cantabrian Mountains, Northern Spain

Samankassou, Elias

In: Sedimentary Geology, 2001, vol. 145(3-4), p. 235

Well-exposed mounds are common in limestone of the Late Carboniferous San Emiliano Formation, Cantabrian Mountains (Northern Spain). They occur as obvious primary topographic features. Careful study of the mound intervals and surrounding strata revealed the internal structures of mounds and the factors controlling their growth. The substrate (2–3 m) of the mounds consists of greyish to reddish,...

Université de Fribourg

Instabilité de terrain dans les Préalpes fribourgeoises (Suisse) au cours du Tardiglaciaire et de l'Holocène : influence des changements climatiques, des fluctuations de la végétation et de l'activité humaine

Dapples, Florence ; Caron, Christian (Dir.) ; Raetzo, Hugo (Codir.) ; Kienholz, Hans (Codir.) ; Strasser, Andreas (Codir.)

Thèse de doctorat : Université de Fribourg, 2002 ; no 1395.

L'accroissement des fréquences et de l'impact de processus d'instabilités de terrain tels que des coulées de boue, laves torrentielles, glissements de terrain ou éboulements, au cours de la dernière décennie, a démontré la nécessité de mieux connaître les causes et la dynamique de ces processus. Ce travail de recherche s'inscrit dans une démarche visant à préciser les relations...