Early-Middle Frasnian (early Late Devonian) sedimentology and magnetic susceptibility of the Ardennes area (Belgium): identification of severe and rapid sea-level fluctuations
Da Silva, Anne-Christine ; ; Boulvain, Frédéric
in Geologica Belgica (2010), 13(4), 319-332Detailed reference viewed: 22 (6 ULg)
Carbon-isotope analysis of fossil wood and dispersed organic matter from the terrestrial Wealden facies of Hautrage (Mons Basin, Belgium).
; Gerards, Thomas ; Gerrienne, Philippe et al
in Palaeogeography, Palaeoclimatology, Palaeoecology (2010), 291Detailed reference viewed: 9 (2 ULg)
Cenomanian sands and clays north of the Vesdre valley: the oldest known Cretaceous deposits in eastern Belgium
Demoulin, Alain ; ; et al
in Geologica Belgica (2010), 11(3), 241-256
A number of motored auger holes have been drilled in 2002 and 2006 in four sand-clay deposits preserved in dissolution pockets within the Dinantian limestones of the watershed north of the Vesdre valley ... [more ▼]
A number of motored auger holes have been drilled in 2002 and 2006 in four sand-clay deposits preserved in dissolution pockets within the Dinantian limestones of the watershed north of the Vesdre valley. These deposits of unknown age are currently classified as (Tertiary) SBL in the new geological map of Wallonia. We present detailed lithostratigraphic logs of the deposits and describe the results of sedimentological and mineralogical analyses. In particular, K-Ar dating of neoformed Mn oxides found at the base of one augerhole at Rechain yielded ages ranging from Cenomanian to Santonian, allowing us to place the Rechain and Andrimont deposits within the early Late Cretaceous. This is fully consistent with their topographic location very close beneath the trace of the pre-Cretaceous erosion surface and makes them the westernmost remains of the Hergenrath Member of the Late Cretaceous Aachen Formation. To the west, the Magnée deposit is more “typical SBL”, probably corresponding to the Late Neogene filling of a dissolution pocket by reworked weathering products of the local Cretaceous cover. [less ▲]Detailed reference viewed: 26 (6 ULg)
Wood remains and sporomorphs from the Wealden facies of Hautrage (Mons Basin, Belgium): palaeoclimatic and palaeoenvironnemental implications.
Gerards, Thomas ; ; et al
in Memoirs of the Geological Survey of Belgium (2008), 55Detailed reference viewed: 3 (2 ULg)
Quelques implications paléoclimatiques de l'observation de bois fossiles du Wealdien du bassin de Mons (Belgique) - Résultats préliminaires.
Gerards, Thomas ; ; Gerrienne, Philippe
in Carnets de Géologie = Notebooks on Geology (2007), 2007(01), 29-34Detailed reference viewed: 13 (1 ULg)
Sedimentology, magnetic susceptibility and high-resolution carbon isotope at the Early-Middle Frasnian boundary in the Ardenne area (Belgium): high-amplitude and rapid eustatic variations as potential cause of the punctata event.
Boulvain, Frédéric ; ; Da Silva, Anne-Christine et al
Conference (2006, September)Detailed reference viewed: 7 (2 ULg)