Université de Fribourg

The influence of terrestrial run off on marine biotic communities: An example from a thrust-top carbonate ramp (Upper Pennsylvanian foreland basin, Picos de Europa, NW Spain)

Merino-Tomé, O. ; Bahamonde, Juan R. ; Samankassou, Elias ; Villa, E.

In: Palaeogeography, Palaeoclimatology, Palaeoecology, 2009, vol. 278, no. 1-4, p. 1-23

High-diversity marine biotic communities characterize the lower Kasimovian (Upper Pennsylvanian) carbonates of the Las Llacerias Formation in the Ándara Massif (Picos de Europa Province, Cantabrian Mountains, Spain). The carbonates accumulated on a small thrust-top ramp system. Within the shallow, low-energy and euphotic realms, biotic communities were characterized by abundant photozoans...

Université de Fribourg

Marine red staining of a Pennsylvanian carbonate slope: environmental and oceanographic significance

Kooij, Bram Van Der ; Immenhauser, Adrian ; Steuber, Thomas ; Hagmaier, Mischa ; Bahamonde, Juan R. ; Samankassou, Elias ; Merino Tomé, Oscar

In: Journal of Sedimentary Research, 2007, vol. 77, no. 12, p. 1026-1045

Red-stained platform facies are a common feature of many carbonate settings throughout the geological record. Although the mechanisms involved in red staining of subaerially exposed or argillaceous, peri-platform limestones are reasonably well understood, the environmental and oceanographic significance of red carbonates often remains uncertain. Here, sedimentological, sequence stratigraphic,...