Lower and Middle Famennian (Upper Devonian) rugose corals from southern Belgium and northern France

After the late Frasnian extinctions, the rugose corals slowly recovered during the Lower and Middle Famennian (crepida to marginifera conodont zones) in southern Belgium and northern France (Avesnois) (Namur–Dinant Basin). Six genera represented by seven species are recognized and described here; one species (Breviphrentis superstes) is new. The rugose coral fauna described herein includes small solitary forms belonging to the so-called Cyathaxonia fauna and is similar or very close to those previously described within the same stratigraphic interval in Australia, China and Germany. It also contains a large species belonging to the genus Breviphrentis which was considered as extinct since the end of the Givetian (Middle Devonian) (“Lazarus taxon”). The tabulate corals from the Lower and Middle Famennian of this area, mainly represented by auloporids, are also briefly discussed. Rugosa only constituted a minor part of the fauna after the end-Frasnian crisis in the Namur–Dinant Basin contrary to the brachiopods, which were abundant and relatively diversified, and no rugose corals have been recovered from the early Lower Famennian (triangularis Zone). The first important Famennian coral radiation only took place during the Latest Famennian (Strunian)

An Exceptional Lower Carboniferous Historical Heritage Stone from Belgium, the ‘Pierre de Meuse’

peer reviewe

Parallel Thinning algorithm using KxK mask

International audienc

A Parallel Thinning Algorithm Using KxK Mask

International audienc

Introduction: 2. The geology of the promontory of the Old Castle Rock (Rocher du Vieux-Château)

Le cercle archéologique Hesbaye-Condroz (CAHC) a entrepris en 2004 une fouille-programme des fortifications du Rocher du Vieux-Château à Pont-de-Bonne (Modave, Belgique), dans la foulée d'un projet initié en 2001. La valorisation du site a été axée autour de 3 points: la restauration d'une pelouse calcaire par pâturage de moutons pour limiter les épineux, une fauche des abords et des points de vue permettant notamment la création d'un sentier touristique et enfin, un volet archéologique qui permet de cerner au mieux les occupations successives au sommet de l'éperon.The archaeological circle Hesbaye Condroz (ACHC) undertook in 2004 a program of excavation of the fortifications of the "Rocher du Vieux-Château" in Pont-de-Bonne (Modave, Belgium), following a project started in 2001. The development of the site has been focused on 3 points: the restoration of a calcareous grassland with sheep grazing to limit thorny, the cutting of the edges of the site and of some nice lansdscape perspectives to include the creation of a tourist trail and finally, an archaeological component that identifies at best the successive occupations at the top of the spur

Development and preservation of the geological heritage in the Liège province (Belgium): the Ampsin and Tchafornis (Engis) geosites

peer reviewedPlusieurs initiatives destinées à mettre en valeur le patrimoine géologique ont été récemment développées en province de Liège (Belgique). Parmi celles-ci figurent les géosites d’Ampsin et des Tchafornis (Engis). Le géosite d’Ampsin illustre le passage brusque des faciès carbonatés peu profonds du Viséen moyen aux faciès détritiques terrigènes du Namurien. Celui des Tchafornis offre l’opportunité d’observer un magnifique exemple de biostrome à grands rugueux coloniaux de la base du Frasnien supérieur (Dévonien supérieur). Tous deux sont situés dans d’anciennes carrières et mettent également en évidence l’industrie extractive de la région.Several initiatives intended to highlight the geological heritage have been recently developed in the Liège province (Belgium). The Ampsin and Tchafornis (Engis) geosites rank among them. The Ampsin geosite shows the clear-cut passage between the shallow carbonate facies of the Middle Viséan and the terrigenous detrital facies of the Namurian. The Tchafornis geosite gives the opportunity to observe a superb example of biostrome with large colonial rugose corals of the base of the Upper Frasnian (Upper Devonian). Both are located in disused quarries and also give prominence to the regional extractive industry