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Article Reference Pavements et placages, l’ornementation du balnéaire privé de Warcq (Ardennes, France).
Introduction: Une fouille préventive s’est déroulée aux lieux-dits « Simonelle » et « Sous le Chemin de Tournes » de la commune de Warcq. Cette commune se situe à trois kilomètres au nord-ouest de Charleville-Mézières, à la confluence de la Meuse, du ruisseau de This et de la Sormonne. Les opérations de terrain ont permis de mettre au jour les vestiges d’une partie d’une petite villa gallo-romaine constituée d’une cave, d’une cour ainsi que d’un balnéaire . Son occupation, qui s’étend du 1er au 4e siècle de notre ère, est caractérisée par de nombreux réaménagements pouvant être rassemblés en quatre grandes phases distinctes (fig. 1). Le secteur thermal est construit vers 130-150 de notre ère (phase 2) et forme l’aile occidentale de la villa. Vraisemblablement contraints par le bâti existant, les bâtisseurs ont opté pour un plan longitudinal où seule la natatio est en saillie. Il en découle un alignement des pièces et plus particulièrement celui du caldarium et du tepidarium dans celui du praefurnium. Sur près de deux siècles, cette partie de la villa a été soumise à des modifications architecturales dont l’agrandissement du frigidarium aux dépends de la cave (phase 3, fin 2e – début 3e siècle), puis l’ajout d’un apodyterium (phase 4, milieu 3e siècle ?). Dans son dernier état, l’ensemble thermal mesure environ 18 m de long pour 5 m de large offrant aux baigneurs un itinéraire rétrograde. L’accès se fait par le vestiaire dont aucun décor n’a été observé. Le secteur froid est une salle, presque carrée (3,40 m x 2,90 m). Elle comporte un bassin à immersion (natatio) à l’ouest et une banquette plaquée contre le mur oriental. On passe ensuite par le tepidarium, une salle rectangulaire (3,30 m x 1,90 m). Le parcours se poursuit par le caldarium. Cette pièce, aux mêmes dimensions que la précédente, est pourvue en sus d’une petite alcôve de 1,20 m de long sur 0,90 m de large dans laquelle est logé un bassin. Une seconde baignoire est flanquée contre le mur occidental (fig. 1). Ce balnéaire se distingue par l’utilisation de la pierre pour son apparat décoratif. Elle est employée aussi bien pour les pavements que pour les parois. Ce type de pratique reste méconnu et peu fréquent dans le sud de la Gaule belgique. L’ornementation des thermes sera abordée au travers de l’étude de ces décors et, dans un second temps, par la caractérisation et la provenance des roches utilisées. Il convient de mentionner que ces roches se distinguent des pierres de construction qui sont en calcaire gréseux coquillier de couleur jaune pâle à beige, attribuées à la Pierre de Romery, d’extraction locale. Ce matériau affleure à quelques kilomètres de Warcq. Ce travail résulte d’une collaboration entre archéologue, géologue, restauratrices et spécialiste des pavements, et fait suite à une intervention de dépose des pavements et des revêtements muraux mis au jour lors de la fouille.
Located in Library / RBINS Staff Publications 2021
Article Reference Flocculation with heterogeneous composition in water environments: A review
Flocculation is a key process for controlling the fate and transport of suspended particulate matter (SPM) in water environments and has received considerable attention in the field of water science (e.g., oceanography, limnology, and hydrology), remaining an active area of research. The research on flocculation has been con­ducted to elucidate the SPM dynamics and to diagnose various environmental issues. The flocculation, sedi­mentation, and transportation of SPM are closely linked to the compositional and structural properties of flocs. In fact, flocs are highly heterogeneous in terms of composition. However, the lack of comprehensive research on floc composition and structure has led to misconceptions regarding the temporal and spatial dynamics of SPM. This review summarizes the current understanding of the heterogeneous composition of flocs (e.g., minerals, organic matter, metals, microplastic, engineered nanoparticles) and its effect on their structure and on their fate and transport within aquatic environments. Furthermore, the effects of human activities (e.g., pollutant discharge, construction) on floc composition are discussed.
Located in Library / RBINS Staff Publications 2022
Article Reference Organic Matter Composition of Biomineral flocs and Its Influence on Suspended Particulate Matter Dynamics Along a Nearshore to Offshore Transect
The seasonal variation in concentration of transparent exopolymer particles (TEPs), particulate organic carbon (POC) and particulate organic nitrogen (PON) were investigated together with floc size and the concentration of suspended particulate matter (SPM) along the cross-shore gradient, from the high turbid nearshore toward the low-turbid offshore waters in the Southern Bight of the North Sea. Our data demonstrate that biophysical flocculation cannot be explained by these heterogeneous parameters, but requires a distinction between a more reactive labile (“fresh”) and a less reactive refractory (“mineral-associated”) fraction. Based on all data, we separated the labile and mineral-associated POC, PON, and TEP using a semi-empirical model approach. The model's estimates of fresh and mineral-associated organic matter (OM) show that great parts of the POC, PON, and TEP are associated with suspended minerals, which are present in the water column throughout the year, whereas the occurrence of fresh TEP, POC, and PON is restricted to spring and summer months. In spite of a constantly high abundance of total TEP throughout the entire year, it is its fresh fraction that promotes the formation of larger and faster sinking biomineral flocs, thereby contributing to reducing the SPM concentration in the water column over spring and summer. Our results show that the different components of the SPM, such as minerals, extracellular OM and living organisms, form an integrated dynamic system with direct interactions and feedback controls.
Located in Library / RBINS Staff Publications 2022
Inproceedings Reference Sulfidic Habitats in the Frasassi Caves, Italy: A Hotspot of Subterranean Biodiversity
Located in Library / RBINS Staff Publications 2022 OA
Article Reference Systematics of Afrotropical Eristalinae (Diptera: Syrphidae) using mitochondrial phylogenomics
Located in Library / RBINS Staff Publications 2022
Article Reference Presence of Placiphorella atlantica (Verrill & S. I. Smith, 1882) (Polyplacophora, Mopaliidae) in the Denmark Strait (West Iceland)
Located in Library / RBINS Staff Publications 2022 OA
Article Reference Review of the Adoretini of Cambodia with six new species (Coleoptera, Scarabaeidae, Rutelinae)
Located in Library / RBINS Staff Publications 2022 OA
Article Reference New species and genera of Muricidae (Mollusca: Gastropoda) from New Zealand
Located in Library / RBINS Staff Publications 2022 OA
Article Reference Noteworthy and New Muricidae (Gastropoda) Collected in the East and South China Seas and off Taiwan
Located in Library / RBINS Staff Publications 2022 OA
Conference Reference Abc Taxa: series of peer-reviewed manuals dedicated to capacity building in taxonomy & collection management
Today, the so-called taxonomic impediment, i.e., the lack of taxonomic (inclusive of genetic) information, taxonomic and curatorial expertise, and infrastructure in many parts of the world, means that accessing and generating taxonomic information remains extremely difficult. To alter this trend, the Convention on Biological Diversity installed the Global Taxonomy Initiative (GTI) and endorsed it with an operational program of work. Its objectives are to remedy the knowledge gaps in our taxonomic system, increase the number of well-trained taxonomists and curators, optimize the infrastructure needed to do sound taxonomic research, significantly improve access to taxonomic collections, data, and metadata, and, thereby, to improve decision- making in conservation of biodiversity. To speed up taxonomic capacity building the Belgian GTI Focal Point has established the series Abc Taxa (www.abctaxa.be), a toll-free information highway between experts and novices. It is believed that this artery will speed up the construction of taxonomic capacity, as it does not evoke the expensive, long-term teacher-apprentice relationships previously utilized to install operational, high-quality taxonomists and collection managers. Since 2005, 19 volumes have been released with subjects as diverse as taxonomy of sea cucumbers of the Comoros, good practices in collection management of mollusc collections, taxonomy of the amphibians of Cuba and of Guyana, taxonomy of algae of Sri Lanka, bee taxonomy in sub-Saharan Africa, mushroom taxonomy of Central Africa, introduction to the taxonomy of mites, taxonomy of invasive succulents of South Africa, taxonomy of the sawflies of southern Africa, taxonomy of the diatoms of the Congo, taxonomy of fish parasites of African Freshwater fishes and taxonomy of the brittle and basket stars of South Africa. This contribution briefly details the scope and aims of Abc Taxa, demonstrates the value of the series for development, and acts as a call for future manuscripts.
Located in Library / RBINS Staff Publications 2021