Redéfinition des unités structurales du front varisque utilisées dans le cadre de la nouvelle Carte géologique de Wallonie (Belgique)

in Geologica Belgica (2012), 15(3), 169-175

The new geological map of Wallonia permits to obtain a more global view of the tectonic organization of the Palaeozoic terrains around the Variscan Front in southern Belgium. This zone oriented WSW-ENE ... [more ▼]

The new geological map of Wallonia permits to obtain a more global view of the tectonic organization of the Palaeozoic terrains around the Variscan Front in southern Belgium. This zone oriented WSW-ENE and passing south of an axis Charleroi-Namur, was firstly highlighted by the coal mining works, but has been significantly documented notably through deep boreholes and seismic profiles. A coherent structural sketch of the Variscan Front is proposed for its entire longitudinal course, where the following structural units are distinguished, from north to south: the Brabant Massif and the base of the cover unaffected by the Variscan orogeny, the Brabant Parautochthon, the Haine-Sambre-Meuse Overturned Thrust sheets (HSM-OTS) and the Ardenne Allochthon. Undeformed terrains during Variscan event constitute the northern border of the Variscan Front. The Brabant Parautochthon includes Devono-Carboniferous terrains, which are folded and faulted. The HSM-OTS are formed by the superposition of several sheets (e.g. La Tombe sheet), which are supported by various thrust faults (e.g. Masse fault). The Ardenne Allochthon, which has been displaced during the Variscan orogeny, rests on the Brabant Parautochthon and the HSM-OTS through a faulted zone, which is locally known as the Midi Fault. [less ▲]

La nouvelle carte géologique de Wallonie et ses applications

in Blieck, A.; Auguste, P.; Derycke, C. (Eds.) Programme et résumés (2011, October)

Achêne- Leignon: notice explicative de la carte géologique de la Wallonie

Book published by Ministère de la Région wallonne, DGRNE (1995)

New geological map of Wallonia published at the scale of 1/25.000, based on a new field work and using previous scientific data produced, since the previous edition of Lohest and Mourlon published in 1900 ... [more ▼]

New geological map of Wallonia published at the scale of 1/25.000, based on a new field work and using previous scientific data produced, since the previous edition of Lohest and Mourlon published in 1900 at the scale of 1/40.000 by the "Commisssion géologique de Belgique". Previously, the sheet "Achêne" has been mapped by Dupont and Mourlon at the scale of 1/20.000 for the "Musée Royal d'Histoire Naturelle de Belgique"but never published. [less ▲]