GeoResources - Braided-Stream Depositional System at Talarn, Tremp Basin, Tremp Fm., Paleocene


Virtual Geology - Pyrennees Foreland Basin and Antiformal Stack Braided-Stream Depositional System at Talarn, Tremp Basin, Tremp Formation, Paleocene






Virtual Field Trip Stop 6 The Tremp Formation represents continues a long-term regressive trend which started at the base of the underlying Aren Formation. It features primarily continental deposition with at least two major limnic intervals. Total thickness is approximately 800 m in the basin centre. Abundant continental facies, architectural elements and sediment structures occur. Alluvial plain facies (lower part of the image) includes paleosoils with rhizolites, colour mottling and carbonate concretions. In the upper part of the outcrop at Talarn, multi-storey fluvial channels with bounding erosion surfaces, lateral accretion and channel plugs developed. Limnic and tidal flat facies occurs regionally, e.g. north of the villages of Basturs and Sant Roma d´Abadella, east of Tremp. It has been studied in detail for its rich fauna. Dinosaur tracks have also been described from the Tremp Formation. The image shows the Tremp Formation below the old village of Talarn along the road from Tremp to Pobla de Segur.

Selected Literature Lopez, M.N., Canudo, J.I., Ardevol, L., Suberbiola, X.P., Orue, E.X., Cuenca-Bescos, G., Ruiz-Omenaca, J.I., Murelaga, X. and Feist, M. (2001) New dinosaur sites correlated with Upper Maastrichtian pelagic deposits in the Spanish Pyrenees; implications for the dinosaur extinction pattern in Europe. - Cretaceous Res. 22, 1, 41-61. Lopez, M.N., Moratalla, J.J. and Sanz, J.L. (2000) Dinosaurs nesting on tidal flats. - Palaeogeogr. Palaeoclim. Palaeoecol., 160, 1-2, 153-163. Luterbacher, H. (1998) Sequence stratigraphy and the limitations of biostratigraphy in the marine Paleogene strata of the Tremp Basin (central part of the southern Pyrenean foreland basin, Spain). - in: de Graciansky, P.C.., Hardenbol, J. Jacquin, T. and Vail, P.R. (eds.) Mesozoic and Cenozoic sequence stratigraphy of European basins. Spec. Publ., Soc. Sediment. Geol., 60, 303-309. Lopez, M.N., Ardevol, L. Arribas, M.E., Civis, J., Gonzalez, D.A. (1998) The geological record in non-marine environments around the K/ T boundary (Tremp Formation, Spain). - Bull. Soc. Geol. France, 169, 1, 11-20. Peper, T. and de-Boer, B.L. (1997) Intrabasinal thrust-tectonic versus climate control on rhythmicities in the Eocene South Pyrenean Tremp-Graus foreland basin; inferences from forward modelling. - Tectonophysics, 249, 1-2, 93-107. Galbrun, B., Feist, M., Colombo, F., Rocchia, R. and Tambareau, Y. (1993) Magnetostratigraphy and biostratigraphy of Cretaceous-Tertiary continental deposits, Ager Basin, Province of Lerida, Spain. - Palaeogeogr. Palaeoclim. Palaeoecol., 102, 1-2, 41-52. de-Boer, P.L., Pragt, J.S.J. and Oost, A.P. (1991) Vertically persistent sedimentary facies boundaries along growth anticlines and climate-controlled sedimentation in the thrust-sheet-top South Pyrenean Tremp-Graus foreland basin. - Basin Res., 3, 2, 63-78. Puigdefabregas, C. and Simo, A. (1986) Evolution and cyclicity in a tectonically controlled shelf; Aren Sandstone, Maestrichtian, Tremp, south-central Pyrenees. - in: Knight, R.J. and McLean, J.R. (eds.) Shelf sands and sandstones. Mem. Can. Soc. Petrol. Geol., 11, 332.


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GeoResources - Braided-Stream Depositional System at Talarn, Tremp Basin, Tremp Fm., Paleocene

Virtual Geology - Pyrennees Foreland Basin and Antiformal Stack

Braided-Stream Depositional System at Talarn, Tremp Basin, Tremp Formation, Paleocene