A preliminary study of cross correlation between lithology and K airborne radiometry in the Belgian Ardennes

peer reviewe

Spring Water Geochemistry: A Geothermal Exploration Tool in the Rhenohercynian Fold-and-Thrust Belt in Belgium

peer reviewedSpring water geochemistry is applied here to evaluate the geothermal potential in Rhenohercynian fold and thrust belt around the deepest borehole in Belgium (Havelange borehole: 5648 m MD). Fifty springs and (few) wells around Havelange borehole were chosen according to a multicriteria approach including the hydrothermal source of “Chaudfontaine” (T ≈ 36 ◦C) taken as a reference for the area. The waters sampled, except Chaudfontaine present an in-situ T range of 3.66–14.04 ◦C (mean 9.83 ◦C) and a TDS (dry residue) salinity range of 46–498 mg/L. The processing methods applied to the results are: hierarchical clustering, Piper and Stiff diagrams, TIS, heat map, boxplots, and geothermometry. Seven clusters are found and allow us to define three main water types. The first type, locally called “pouhon”, is rich in Fe and Mn. The second type contains an interesting concentration of the geothermal indicators: Li, Sr, Rb. Chaudfontaine and Moressée (≈5 km East from the borehole) belong to this group. This last locality is identified as a geothermal target for further investigations. The third group represents superficial waters with frequently high NO3 concentration. The application of conventional geothermometers in this context indicates very different reservoir temperatures. The field of applications of these geothermometers need to be review in these geological conditions.MEE

First Early Hominin from Central Africa (Ishango, Democratic Republic of Congo)

Despite uncontested evidence for fossils belonging to the early hominin genus Australopithecus in East Africa from at least 4.2 million years ago (Ma), and from Chad by 3.5 Ma, thus far there has been no convincing evidence of Australopithecus, Paranthropus or early Homo from the western (Albertine) branch of the Rift Valley. Here we report the discovery of an isolated upper molar (#Ish25) from the Western Rift Valley site of Ishango in Central Africa in a derived context, overlying beds dated to between ca. 2.6 to 2.0 Ma. We used µCT imaging to compare its external and internal macro-morphology to upper molars of australopiths, and fossil and recent Homo. We show that the size and shape of the enamel-dentine junction (EDJ) surface discriminate between Plio-Pleistocene and post-Lower Pleistocene hominins, and that the Ishango molar clusters with australopiths and early Homo from East and southern Africa. A reassessment of the archaeological context of the specimen is consistent with the morphological evidence and suggest that early hominins were occupying this region by at least 2 Ma

Structural analysis of narrow reworked boudins and influence of sedimentary successions during a two-stage deformation sequence (Ardenne-Eifel region, Belgium - Germany)

info:eu-repo/semantics/publishe

Manuel des contrats de licence

Het Handboek Licentieovereenkomsten schetst op een bevattelijke wijze het Belgisch juridisch kader dat gemeenschappelijk is aan de overeenkomsten tot gebruik van intellectuele eigendomsrechten. Waar aangewezen wordt de aandacht gevestigd op de specificiek regelgeving die, afhankelijk van het betrokken type van intellectuele eigendom, van toepassing is op een licentieovereenkomst. In het Eerste Deel van het Handboek komen de burgerrechtelijke aspecten aan bod: na de definiëring en de bespreking van de verschillende types licentieovereenkomsten, wordt in het bijzonder aandacht besteed aan het sluiten, de uitlegging, de uitvoering, de overdracht en de uitdoving van de licentieovereenkomst. In het tweede Deel komt de verhouding tussen de exploitatie van de intellectuele eigendom (de licentieovereenkomst) en het mededingingsrecht aan bod. Na enkele inleidende overwegingen volgt de toetsing van de licentieovereenkomst aan de artikelen 81 en 82 EG. Daar een goed functioneren van de Interne Markt één van de objectieven van het mededingingsrecht is, wordt tenslotte de verhouding tussen de licentieovereenkomst en die Interne Markt, het vrij verkeer van goederen binnen de Europese Economische Ruimte, behandeld

Bulk and grain strain measurements in sandstone by image analysis

peer reviewe