Christian Dupuis

Université de Mons · Department of Geology and Applied Geology

Organogenèse induite chez des plants de Prosopis farcta (Fabaceae, Mimosoideae) développés in vitro par apport de diverses concentrations en ions Na + et SO 4-par Sondes Stambouli(1), Sadok Bouzid(1), Pierre Dutuit(2) et Fethia Harzallah-Skhiri(3)

The Anglo-Belgo-Paris Basin, historical cradle of the Paleogene stratigraphy since the XVIIIth century, is known by the presence of very specific so-called “Sparnacian” deposits (very diverse and laterally highly variable, predominantly lagoonal to terrestrial facies), which encompass the short stratigraphic interval of the Paleocene-Eocene Thermal...

Résumé La révision des nappes alluviales de la Basse Somme intègre dans un même canevas deux séries de points d’observations complémentaires. La première série, proche des graviers de base regroupe les données de V. Commont et de A. Briquet. La seconde série de points appartient pour l'essentiel aux hautes et très hautes nappes, cartographiées par...

The mining district of Nefza-Sejnane (Tunisia) encloses numerous ores and raw material deposits, all formed in relation with successive Fe-rich fluids of meteoric and/or hydrothermal origins. Here, for the first time in Tunisia, (U-Th)/He ages were obtained on supergene goethite from various localities/deposits of the district highlight direct dati...

The Early Eocene experienced a series of short-lived global warming events, known as hyperthermals, associated with negative carbon isotope excursions (CIE). The Paleocene-Eocene Thermal Maximum (PETM or ETM-1) and Eocene Thermal Maximum 2 (ETM-2) are the two main events of this Epoch, both marked by massive sea-floor carbonate dissolution. Their t...

Résumé : Les dépôts fluviatiles du Pléistocène moyen préservés aux environs de Spiennes, sur le bord méridionaldu bassin de la Haine au sud de Mons, intègrent quatre nappes alluviales associées à des industries du Paléolithique inférieur et moyen, réparties entre 78 m (Pa d’la l’iau) et 47 m (carrière Hélin). Dans ce système, la nappe de Petit-Spie...

This chapter deals with the long-term geomorphology of the Paleozoic Ardenne–Oesling massif of S Belgium and the landforms that currently attest the very long persistence and high resistance to erosion of landscape elements created as far back in time as the Lower Cretaceous in a region of predominantly continental regime and constant low to modera...

The exhumation history of basement areas is poorly constrained because of large gaps in the sedimentary record. Indirect methods including low temperature thermochronology may be used to estimate exhumation but these require an inverse modeling procedure to interpret the data. Solutions from such modeling are not always satisfactory as they may be...

We present a detailed geologic study of the Thebes Formation at Gebel Gurnah in its locus typicus on the West Bank (opposite Luxor) of the Nile River in the Upper Nile Valley, Egypt. This is the first detailed measurement and lithologic description of the ∼340 m thick (predominantly) carbonate section. The Thebes Formation is divided into thirteen...

A World Heritage Site since 1979, the Theban Necropolis was built by the Pharaohs of the 18th to 20th Dynasties (c. 1539 – 1075 BCE). A variety of pharaonic (and lesser nobles') tombs, funerary temples and sanctuaries were located/excavated in the lower part of the c. 400 m high pyramidal El Qurn in a variety of lithofacies (predominantly marine li...

We have investigated quartz cement in silcretes and puddingstones from uppermost Paleocene to lowermost Eocene, terrestrial to coastal and shallow marine sediments in north France and Belgium using cathodoluminescence (CL) and trace element electron probe micro-analysis (EPMA). The syntaxial cement overgrowing quartz grains exhibits mostly dark to...

A Booklet For Students and Visitors of the Dababiya Protectorate Protectorate No. 27 35 Km South of Luxor, Egypt

The Cap d’Ailly area (Upper Normandy, France) shows several terrestrial-lagoonal sections recording the negative carbon isotope excursion (CIE) associated with the Paleocene-Eocene Thermal Maximum (PETM; 55.8 Ma). A study of the biomarkers and spores/pollen content of the Vasterival section gave complementary information on paleofloral changes that...

The Global Boundary Stratotype Section and Point for the base of the Selandian Stage is defined in the Zumaia section (Spain) at an abrupt change in lithology (base of Itzurun Formation), which coincides with the onset of a negative carbonate carbon isotope shift. However, this lithological change is not always very well expressed in other sections...

The Paleocene-Eocene Thermal Maximum (PETM) is correlated with the first occurrences of earliest modern mammals in the Northern Hemisphere. The latest Paleocene Clarkforkian North American Land Mammal Age, that has yielded rodents and carnivorans, is the only exception to this rule. However, until now no pre-PETM localities have yielded modern mamm...

The earliest Eocene Erquelinnes site was discovered in 1880, but its mammal fauna has been frequently ignored. This paper provides the first detailed overview of the Erquelinnes mammals since 1929. The new faunal list doubles the known diversity at Erquelinnes to a total of 16 species, now also including amphilemurids, hyaenodontids, mesonychids, l...

The Paris Basin represents an historical cradle of Palaeogene stratigraphy, where during the nineteenth century the Palaeocene Series and the ‘‘Sparnacian Stage’’ were established. As highlighted by Aubry et al. (2005), whereas the chronostratigraphic connotation of the ‘‘Sparnacian Stage’’ has been controversial since its definition, modern studie...

Despite the increasing understanding of the Paleocene-Eocene thermal maximum (PETM) in open marine environments, shallow marine settings remain relatively unexplored. We investigated an upper Paleocene to lower Eocene shallow-water sequence near Kalaat Senan in Tunisia (Sidi Nasseur and Wadi Mezaz sections) in order to generate a stratigraphic fram...

The Paleocene-Eocene boundary (55.8 Ma) is associated with the Paleocene-Eocene Thermal Maximum (PETM), which is characterized by a negative Carbon Isotope Excursion (CIE), reflecting a major perturbation of the carbon cycle, and by an extreme and rapid global warming. The Cap d'Ailly area (Upper Normandy, France), in which previous studies have re...

The Paleocene-Eocene Thermal Maximum (PETM, 55.8 Ma, Aubry et al., 2007) is regarded as one of the most rapid global warming of the Cenozoic era, with temperature increase of 4-8°C in about 10-20 ka. Thus, it is often proposed as a potential analogue of future climatic conditions expected in the screenplays provided by the International Panel on Cl...

Terra Nova, 24, 114–122, 2012 The Palaeocene/Eocene boundary (P/EB) and the Palaeocene–Eocene Thermal Maximum (55.8 Ma) are defined stratigraphically based on carbon isotope ratios of various materials. Here, the position of the P/EB is refined in the terrestrial–lacustrine and swampy Vasterival section (Upper Normandy coast, France) by using carbo...

Despite the large number of studies on the Paleocene-Eocene thermal maximum (PETM), the knowledge of environmental and biotic responses in shallow marine environments remains quite poor. Benthic foraminiferal assemblages of the Sidi Nasseur and Wadi Mezaz sections in Tunisia were studied quantitatively and the paleoecologic interpretations provide...

The Dababiya core has recovered, in descending order, the Esna Shale Formation (lower part), the Tarawan Formation and the Dakhla Shale Formation (upper part). In the Esna Shale Formation, the Mahmiya Member (lower part), the Dababiya Quarry Member and the Hanadi Member were delineated. The Mahmiya Member and the Dababiya Quarry Member are early Eo...

Citation: 2011 Nicholson, P.T. “I’m not the saggar maker, I’m the saggar maker’s mate” Saggar making and bottom knocking in Stoke on Trent as a guide to early saggar technology. In D. Aston, B.Bader, C. Gallorini, P. Nicholson and S. Buckingham (Eds.) Under the Potter’s Tree: Studies in Ancient Egypt Presented to Janine Bourriau on the Occasion of...

The Paleocene-Eocene Thermal Maximum (PETM, 55.8 Ma, Aubry et al, 2007) is regarded as one of the most rapid global warming of the Cenozoic era, with temperature increase of 4-8°C in about 10-20 ka. Thus, it is often proposed as a potential analogue of future climatic conditions expected in the screenplays provided by the International Panel on Cli...

In order to decipher the PETM (Paleocene-Eocene Thermal Maximum) impact on the “Sparnacian” diversified and interconnected paleoenvironments of the Paris Basin, and to ensure correlation of the events and processes identified, a high resolution temporal framework is essential. Historically, the Paris and adjacent basins are the cradle of stratigrap...

Terrestrial and lagoonal to shallow marine paleoenvironments are preserved in the Lower Paleogene outliers scattered along the eastern English Channel coast (Dieppe-Hampshire Basin). Stratigraphic studies in this Paleocene-Eocene (P-E) interval reference area (Dupuis et al., 1998; Aubry et al., 2005) are especially useful in reconstructing sea leve...

The geological archives record "hyperthermic" crises, along with their consequences on the biota and physical environment. Among these, the PETM (Paleocene-Eocene Thermal Maximum) is often considered as the closest analogue to the current climate crisis due to its global character and the speeds at which the CO2 rate and average temperatures increa...

European terrestrial vertebrate sites of the Upper Paleocene-Lower Eocene deposits are predominantly known from the central and eastern parts of the Paris Basin. However, several outcrops covering this interval are scattered along the Upper Normandy coast, in the western part of the Paris Basin. Here we report the discovery of a new terrestrial ver...

The Thebes Formation forms an extensive carbonate platform on the southern margin of Tethys, outcropping along the Nile Valley and over large areas of the Western Desert of Upper Egypt. It has an extensive literature, but its biostratigraphy, depositional environments and sequence stratigraphy are still not well integrated on a regional scale. The...

The Thebes Formation forms an extensive carbonate platform on the southern margin of Tethys, outcropping along the Nile Valley and over large areas of the Western Desert of Upper Egypt. It has an extensive literature, but its biostratigraphy, depositional environments and sequence stratigraphy are still not well integrated on a regional scale. The...

Although developed over a small area (~3 km2), the Theban Necropo-lis is geographically diverse. It includes gentle and sloping hills, high and low cliffs, broad and narrow valleys. This varied land-scape reflects the geology of the area, i.e., the nature of the rocks that form the bedrock and its covering, their deformation or lack thereof, and th...

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 lithostratigra...

The geological archives record "hyperthermic" crises, along with their consequences on the biota and physical environment. Among these, the PETM (Paleocene-Eocene Thermal Maximum) is considered as the closest analogue to the current climate crisis due to its global character and the speeds at which the CO2 rate and average temperatures increased. S...

The karstic system in Aïn Khamouda (Central Tunisia) has been briefly exploited for its Pb–Zn mineralization in the first 20 years of the 20th century. Since then, little work has been dedicated to this system, apart from some detailed mineralogical studies. Here we place the Aïn Khamouda karsts in their regional geological framework, which is mark...

The upper Paleocene-lower Eocene stratigraphic record of Upper Egypt forms the high cliffs that isolate the Nile Valley from the eastern and western deserts. It consists of three formations, the Tarawan chalk, ~20 m thick, overlain by the Esna Shale, ~120 m thick, and the Thebes Limestones (~120 m). The Esna Shale Formation is of particular interes...

The Tamra iron mine (Nefza mining district, N. Tunisia) has been exploited for about one century. There are, however, very few publications modelling the mineralisation within this 50 m-thick Messinian–Zanclean sedimentary series. We present the result of a detailed sedimentological, mineralogical and geochemical study on the siliciclastic sediment...

Les données paléobotaniques disponibles provenant principalement d'une dizaine de sites particulièrement significatifs des cryptokarsts néogènes de l'Entre-Sambre-et-Meuse et du Condroz (Belgique) ont été révisées. L'établissement de la distribution verticale d'une quarantaine de taxons marqueurs débouche sur une phytostratigraphie du Néogène conti...

Available palaeobotanical data from significant karstic depressions of Entre-Sambre-et-Meuse and Condroz areas (Belgium) are reviewed. Drawing up of about forty stratigraphically significant taxa results in a phytostratigraphy of the continental Neogene supporting correlations with surrounding areas. Meorover, palaeoenvironmental and palaeoclimatic...

Two detailed records (NSF and 05NSC, Sidi Nasseur, Tunisia) across the Danian/Selandian (D/S) boundary were investigated for their micropaleontological content. Calcareous nannofossils and planktic foraminifera provided a biostratigraphic framework. The interval spans part of planktic foraminiferal Zone P2, Subzone P3a and part of Subzone P3b. This...

Foraminiferal and clay mineral records were studied in the upper Paleocene to lower Eocene Dababiya section (Egypt). This section hosts the GSSP for the Paleocene/Eocene boundary and as such provides an expanded and relatively continuous record across the Paleocene/Eocene Thermal Maximum (PETM). Deposition of illite–smectite clay minerals is interp...

Carbon isotopic studies conducted on the upper Paleocene (Thanetian) and lower Eocene ("Sparnacian" - Ypresian) of the Paris Basin allow us to place the lithostratigraphic succession of the Mont Bemon Group in a spatial and temporal framework. The δ13C (negative) carbon isotope excursion (CIE) associated with the Paleocene/Eocene Thermal Maximum (P...