-
Spores et pollens
-
Located in
Library
/
RBINS Staff Publications
-
Spring Water Geochemistry: A Geothermal Exploration Tool in the Rhenohercynian Fold-and-Thrust Belt in Belgium
-
Spring 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.
Located in
Library
/
RBINS Staff Publications 2021 OA
-
Stable carbon isotopic composition of Mytilus edulis shells: relation to metabolism, salinity, δ13CDIC and phytoplankton
-
Located in
Library
/
RBINS Staff Publications
-
Stable isotope evidence for late medieval (14th-15th C) origins of the eastern Baltic cod (Gadus morhua) fishery
-
Although recent historical ecology studies have extended quantitative knowledge of eastern Baltic cod (Gadus morhua)exploitation back as far as the 16th century, the historical origin of the modern fishery remains obscure. Widespreadarchaeological evidence for cod consumption around the eastern Baltic littoral emerges around the 13th century, threecenturies before systematic documentation, but it is not clear whether this represents (1) development of a substantialeastern Baltic cod fishery, or (2) large-scale importation of preserved cod from elsewhere. To distinguish between thesehypotheses we use stable carbon and nitrogen isotope analysis to determine likely catch regions of 74 cod vertebrae andcleithra from 19 Baltic archaeological sites dated from the 8th to the 16th centuries.d13C and d15N signatures for six possiblecatch regions were established using a larger sample of archaeological cod cranial bones (n=249). The data stronglysupport the second hypothesis, revealing widespread importation of cod during the 13th to 14th centuries, most of itprobably from Arctic Norway. By the 15th century, however, eastern Baltic cod dominate within our sample, indicating thedevelopment of a substantial late medieval fishery. Potential human impact on cod stocks in the eastern Baltic must thus betaken into account for at least the last 600 years
Located in
Library
/
RBINS Staff Publications
-
Stable isotopes reveal patterns of diet and mobility in the last Neandertals and first modern humans in Europe
-
Correlating cultural, technological and ecological aspects of both Upper Pleistocene modern humans (UPMHs) and Neandertals provides a useful approach for achieving robust predictions about what makes us human. Here we present ecological information for a period of special relevance in human evolution, the time of replacement of Neandertals by modern humans during the Late Pleistocene in Europe. Using the stable isotopic approach, we shed light on aspects of diet and mobility of the late Neandertals and UPMHs from the cave sites of the Troisième caverne of Goyet and Spy in Belgium. We demonstrate that their diet was essentially similar, relying on the same terrestrial herbivores, whereas mobility strategies indicate considerable differences between Neandertal groups, as well as in comparison to UPMHs. Our results indicate that UPMHs exploited their environment to a greater extent than Neandertals and support the hypothesis that UPMHs had a substantial impact not only on the population dynamics of large mammals but also on the whole structure of the ecosystem since their initial arrival in Europe.
Located in
Library
/
RBINS Staff Publications 2019
-
Stable isotopes unveil one millennium of domestic cat paleoecology in Europe
-
The domestic cat is the world's most popular pet and one of the most detrimental predators in terrestrial ecosystems. Effective protection of wildlife biodiversity demands detailed tracking of cat trophic ecology, and stable isotopes serve as a powerful proxy in dietary studies. However, a variable diet can make an isotopic pattern unreadable in opportunistic predators. To evaluate the usefulness of the isotopic method in cat ecology, we measured C and N isotope ratios in hundreds of archaeological cat bones. We determined trends in cat trophic paleoecology in northern Europe by exploiting population-scale patterns in animals from diverse locations. Our dataset shows a high variability of isotopic signals related to the socio-economic and/or geomorphological context. This points toward regularities in isotopic patterns across past cat populations. We provide a generalized guide to interpret the isotopic ecology of cats, emphasizing that regional isotopic baselines have a major impact on the isotopic signal.
Located in
Library
/
RBINS Staff Publications 2022
-
State of knowledge of aquatic ecosystem and fisheries of the Lake Edward System, East Africa
-
Located in
Library
/
RBINS Staff Publications 2023
-
Statistical treatment of trace element data and ancient animal bone : evaluation of Roman Byzantine environmental pollution
-
Through chemical analysis of ancient animal bone found at the archaeological site of Sagalassos, and through comparison of the analytical data with that from modern bone and feed from the same location, conclusions on the ancient livestock are made. Samples of ancient and modern goat bone as well as Quercus coccifera were analyzed using Inductively Coupled Plasma–Mass Spectrometry (ICP-MS). After evaluation of the consistency of the chemical characteristics of different types of modern bone in one individual, it is decided to use the trace element data of long bone for statistical treatment. After evaluation of the degree and effects of diagenesis in the fossil bone, it is concluded that trace element data are useful indicators for anthropogenic palaeoenvironmental pollution, as a distinction could be made between elements that occur naturally in the bedrock and those that can be linked to industrial pollution. The occurrence or depletion of the latter elements in fossil bone, show diachronic changes in the chemical composition of the goat bones which can be explained in function of the changing catchment area from which the animals were obtained through time. It is conceivable that during periods of insecurity, such as the fifth to sixth century A.D. in the area of Sagalassos, animal herds were kept closer to the ancient town and would hence take up more pollutants with the ingested food. A lower uptake of pollutants during the fourth century, a rich and secure period in the history of the city, can be explained by a wider catchment area from which the goats were obtained.
Located in
Library
/
RBINS Staff Publications
-
Stick insects from Vietnam: The new genus Mycovartes gen. nov., with two new species and two new species of Neooxyartes Ho, 2018 (Phasmida: Lonchodidae: Necrosciinae)
-
Located in
Library
/
RBINS Staff Publications 2023
-
Stomiiformes (Teleostei, Otolithen) aus dem Miozän der Karpatischen Vortiefe (Westkarpaten, Mähren) und der Zentralen Paratethys
-
Located in
Library
/
RBINS Staff Publications
