Paléoécologie et interprétation sédimentologique du ‘marbre noir’ de Denée (Viséen inférieur, Belgique)

in Geologica Belgica (2004), 7

Sedimentology, magnetic susceptibility and correlations of Middle Frasnian platform limestone (Tailfer and Aywaille sections, Belgium)

in Geologica Belgica (2003), 6(3-4), 81-96

Triassic and Jurassic lithostratigraphic units (Belgian Lorraine)

in Geologica Belgica (2001), 4(1-2), 113-119

A multidisciplinary study of some extensively cored boreholes together with the new 1/25,000 geological mapping of Wallonia led us to propose a new lithostratigraphic canvas for Belgian Lorraine. This ... [more ▼]

A multidisciplinary study of some extensively cored boreholes together with the new 1/25,000 geological mapping of Wallonia led us to propose a new lithostratigraphic canvas for Belgian Lorraine. This area is located on the NE border of the Paris Basin, south of the Ardennes; the studied stratigraphic interval covers the Keuper to the Bajocian. [less ▲]

New lithostratigraphical, sedimentological, mineralogical and palaeontological data on the Mesozoic of Belgian Lorraine: a progress report

in Geologica Belgica (2001), 3(1-2), 3-33

A multidisciplinary study of some extensively cored boreholes together with the new 1/25.000 geological mapping of wallonia lead us to propose a new lithostratigraphic canvas for belgian lorraine. This ... [more ▼]

A multidisciplinary study of some extensively cored boreholes together with the new 1/25.000 geological mapping of wallonia lead us to propose a new lithostratigraphic canvas for belgian lorraine. This area is located on the n-e border of the paris basin, south of the ardennes; the studied stratigraphic interval covers the keuper to the toarcian. Each of the newly defined units is sedimentologicaly interpreted on the basis of macroscopic and microscopic observations. Detailed palynological and claystratigraphical analyses have been performed, providingadditional stratigraphical, palaeoecological and sedimentological data. Moreover, a first sequence stratigraphic interpretation is proposed for this highly transgressive sedimentary body. The habay formation (conglomerates and red mudstones) is a fluvial unit, with immature channel conglomerates and paleosoils; the attert formation (dolomitic marls with gypsum and pseudomorphs) exhibites an evaporitic trend. The Mortinsart formation (sands and marls) corresponds to a restricted marine unit, evolving towards an alluvial plain (levallois member). The second cycle begins with the Jamoigne Formation (bioturbated marls and limestones), a marine subtidal restricted unit, evolving towards a more sandy sedimentary body (Metzert Member). The base of the third cycle corresponds to the rest of the Luxemburg Formation, comprising a succession of sandy waves. The Ethe Formation (laminar mudstones and marls) marks a deepening of the basin and the outset of open marine dysaerobic conditions. The Aubange Formation (bioturbated marls with sandstones and limestones) is characterized by the reappearance of a normal benthic fauna. The Grandcourt Formation (laminar mudstones and marls) marks a return to open marine dysaerobic conditions. The Mont-Saint-Martin Formation (marls, sandy marls and oolitic ironstone) is a highly regressive unit, while the Longwy Formation (limestones) marks the initiation of a carbonate platform. [less ▲]

Cartographie, étude sédimentologique et structurale de la région de Vaux-sous-Chèvremont – Soumagne.

in Geologica Belgica (2000), 3(1/2), 119

Comparaison des Kess-Kess de Hmar Lakhdad (Emsien, Maroc) et des monticules micritiques de l'anticlinorium de Philippeville (Frasnien, Belgique)

in Geologica Belgica (1999), 1

A Comparison between the Kess-kess of Hmar Lakhdad (Emsian, Morocco) and the mud mounds of the Philippeville Anticlinorium (Frasnian, Belgium). The Kess-kess of Hmar Lakhdad are Devonian mud mounds ... [more ▼]

A Comparison between the Kess-kess of Hmar Lakhdad (Emsian, Morocco) and the mud mounds of the Philippeville Anticlinorium (Frasnian, Belgium). The Kess-kess of Hmar Lakhdad are Devonian mud mounds, located SE of Erfoud (Moroccan Antiatlas). Fenestral structures, which are very abundant, occur from the base to the top of most buildups. These structures are classified in two groups: stromatactis s.s. and stromatactoid fenestrae. each of them showing a high morphological variability. These fenestrae look very similar to the structures already described from the Belgian mud mounds. However, their attribution to sponges cannot be demonstrated. Microstromatolifhes, a microbial structure, are common in the Moroccan and Belgian buildups. The numerous sedi-mentological similarities between the two types of mounds allow to assign the facies of the Kess-kess to the coral-crinoidal limestones at the base of the Belgian buildups. This comparison justifies a paleoecological and paleobathy-metrical interpretation of the Moroccan mud mounds. [less ▲]

Données nouvelles sur la laumontite de la zone métamorphique de Libramont, Belgique.

in Geologica Belgica (1998), 1