Virginie Dumoulin's research while affiliated with Université Libre de Bruxelles and other places

Publications (19)

Conference Paper
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Short presentation of the new geological map of Wallonia (Belgium), collaborative research program of general interest, supported by the Public Service of Wallonia and the Universities of Brussels, Liège, Louvain, Mons and Namur.
Article
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Geological and structural description of the Rochefort area (Dinant Synclinorium, Belgium). Realised in the framework of the program “Revision of geological maps of Wallonia” the new geological maps “Rochefort - Nassogne” and “Houyet - Han sur Lesse” have formed the basis for this note. They represent a synthesis and the update of geologi- cal know...
Article
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A new formation named Jupille is proposed to better characterize in the High-Ardenne area the rocks interbedded between the La Roche (or Villé if La Roche is missing) and Pèmelle Formations, at the transition between the Pragian/Emsian stages (Lower Devonian). This formation is made up of series of grey, blue grey or greenish grey sandstone layers...
Article
Within, the framework of the revision of the geological map of Wallonia (Belgium) and France, our attention was drawn by a stratigraphical unit of shales and siltstones which did not seem yet to be described. The importance of this detrital level for the comprehension of the side passage, within Eifelian, of the Couvin Formation, limestone (in the...
Article
The biohermal lens of the 'Fondry des Chiens' belongs to the Eifelian-Givetian transition beds near Nismes (southern flank of the Dinant basin). The lens is 64 m thick and composed of a stromatopore-coral framestone. It is overlain by restricted lagoonal algal and cyanophycean facies near the emersion, and overlies Udoteacean and coral-bryozoan cov...
Article
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Microfacies of a biohermal lens at the Eifelian.Givetian transition (‘Fondry des Chiens’, Nismes, southern border of the Dinant Synclinorium). The biohermal lens of the ‘Fondry des Chiens’ belongs to the Eifelian- Givetian transition beds near Nismes (southern flank of the Dinant basin). The lens is 64 m thick and composed of a stromatopore-coral f...
Book
Full-text available
New geological map of Wallonia published at the scale of 1/25.000, based on a new field work and using scientific data produced since the previous edition of Mourlon and Bayet published in 1902 at the scale of 1/40.000 by the "Commission Géologique de Belgique".
Book
Full-text available
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 Mourlon and Bayet, published in 1899 at the scale of 1/40.000 by the "Commission Géologique de Belgique".
Book
Full-text available
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 editions of Forir, published in 1899 at the scale of 1/40.000 by the "Commission Géologique de Belgique". Previously, the sheet "Sautour" of Dupont and Purves, has been published in 1885 at the...
Article
Full-text available
After considering the dolomite quarry of Merlemont North in its structural and stratigraphic contexts, palaeontological (rugose corals) and sedimentological observations are presented. A paleoenvironmental reconstruction is proposed and the section is compared to the stratotype of the Philippeville Formation (Belgium, Wallonia, Dinant Synclinorium,...
Article
Full-text available
RÉSUMÉ. La lentille biohermale du 'Fondry des Chiens' de Nismes s'inscrit dans l'évolution des couches de transition eiféliennes-givétiennes du bord sud du Synclinorium de Dinant. Epaisse de 64 m, elle est constituée d'un framestone à Stromatopores massifs dominants auxquels sont associés des Coraux. Elle est surmontée de faciès restreints lagunair...

Citations

... This microfacies is established mostly in R-1 Vaklino and only rarely in R-119 Kardam (Fig. 2). It might be compared with Standard Microfacies Type (SMF) 9 ("strongly burrowed bioclastic wackestone"), as well as with microfacies types defined in Middle Devonian carbonates from Belgium and France [7][8][9][10][11][12][13]. ...
... The Wellin locality is situated at the eastern margin of the Lesse Block which possibly had a higher accommodation rate than the neighbouring blocks during the late part of the Eifelian, resulting in the accumulation of the >250 m thick Chavées Member of the Jemelle Formation, dominantly shaly, with frequent carbonate levels (Godefroid 1968;Dumoulin & Blockmans 2008) and the most remarkable development of a very large bioherm of the Tienne Sainte-Anne Member (Denayer 2019). The bioherm is overlain by the argillaceous, often dark-coloured biolastic wackestone-packstone of the Hanonet Fm, except where the Tienne Saint-Anne Mbr is present and probably acted as a local high in the sea floor, where more hydrodynamically active facies developed (Jamart & Denayer 2020). ...
... The Neuville Formation is also exposed in all the northwestern part of the Dinant Synclinorium. In localities such as Barbençon (Dumoulin, 2001), Laneffe and Gourdinne (Dumoulin & Marion, 1997) and Gerpinnes, Frechastraea coeni is abundant at the base of the lithostratigraphic unit and is associated with a few specimens of F. phillipsastraeiformis and F. limitata. However, Hexagonaria davidsoni is still present at Barbençon, about one metre before the first Frechastraea. ...
... This massif has been intensively folded, faulted and thrusted during Variscan orogenesis ( Fig. 1 a Michot, 1980;Delvaux de Fenffe, 1997;Pirson et al., 2008) forming successive folds interspersed by faulted structures striking ENE. In this framework, the Lorette cave is situated in Givetian limestone, in the inverse flank of an overturned fold (Fig. 1 a-b), in inverse stratigraphic series striking N070 and dipping 55°SSE (Marion et al., 2011). They are composed of series of decimetric series of massive limestone interspersed with porous/ weathered limestone strata and occasional thin clay interbeds (Marion et al., 2011). ...
... ,Bultynck et al. (2001),Préat et al. (2007).Location and access: Open-sky cryptokarst developed in the hill southeast of the village of Nismes near Couvin, southern limb of the Dinant Synclinorium (Fig. 1). GPS: 50°04'09.01'4°33'22.87'E. ...
... This carbonate platform is especially instructive because of a combination of extraordinary exposures ("marble" quarries with large sawn sections) and a long history of palaeontological study which has led to a refined stratigraphic framework (Boulvain et al., 1999;Gouwy and Bultynck, 2000). Carbonate mounds have been the subject of intense investigation carried out by several generations of geologists (Tsien, 1975;Boulvain, 2001) but relatively few of these studies focused on the shallow-water part of the platform Préat et al., 1999;Boulvain, 2002, 2003). This paper provides the first synthetic sedimentological overview of the Belgian middle Frasnian carbonate platform and the associated carbonate mounds. ...
... Tabulate corals are uncommon: small domal Favosites spp., thin laminar alveolitids and a single colony of Heliolites. The sedimentological context for the Eau Noire Formation points to a low-energy environment still under siliciclastic influx (Bertrand et al. 1993). The corals display typical constriction-rejuvenescence cyclic growth suggesting intermittent (potentially seasonal) sediment inputs. ...