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Search publications of the members of the Royal Belgian institute of natural Sciences

Article Reference Upward surface movement above deep coal mines after closure and flooding of underground workings
After the mass closures of entire coal mine districts in Europe at the end of the last century, a new phenomenon of surface movement was observed—an upward movement. Although most surface movement (i.e., subsidence) occurs in the months and years after mining by the longwall method, surface movement still occurs many decades after mining is terminated. After the closure and flooding of underground excavations and surrounding rock, this movement was reversed. This paper focuses on quantifying the upward movement in two neighboring coal mines (Winterslag and Zwartberg, Belgium). The study is based on data from a remote sensing technique: interferometry with synthetic aperture radar (INSAR). The results of the study show that the rate of upward movement in the decade after closure is about 10 mm/year on average. The upward movements are not linked directly to the past exploitation directly underneath a location. The amounts of subsidence at specific locations are linked mainly to their positions relative to an inverse trough shape situated over the entire mined-out areas and their immediate surroundings. Local features, such as geological faults, can have a secondary effect on the local variation of the uplift. The processes of subsidence and uplift are based on completely different mechanisms. Subsidence is initiated by a caving process, while the process of uplift is clearly linked to flooding.
Incollection Reference Natursteinverkleidungen in den Bauten der Colonia Ulpia Traiana. Gesteinkundige Analysen, Herkunftsbestimmung und Rekonstruktion
Article Reference Effects of flood pulses on persistence and variability of pleuston communities in a tropical floodplain lake
Large rivers in tropical regions can experience strong variations of abiotic factors owing to the occurrence of flood pulses. Both man-made and natural floods can cause pulses with varying intensity and duration. Here, we test the hypothesis that ostracod communities in the pleuston of floating plants are persistent during regular pulses and more variable during extreme floods. Ostracod communities were monitored in the Manezinho Backwater of the Upper Parana´ River floodplain (Brazil) for 83 months (seven hydrologic cycles). Flood pulses directly influenced the abiotic variables, which in turn were correlated with the species composition and abundance of ostracods. Variability in the species composition differentiated only between the limnophase of cycle 4 (L4: 2009) and the subsequent extreme flood of cycle 5 (P5: 2009–2010). The longer duration and higher intensity of the extreme flood can increase the exchange of organisms through the aquatic connections between the lake and the river and can potentially trigger the hatching of dry-resistant eggs, increasing variability in ostracod species composition. The absence of significant differences in the species composition variability between the other succeeding periods shows that these communities are persistent and buffered to the effects of natural pulses of short durations.
Inbook Reference The Campine Plateau
Inbook Reference On the Roman use of "Belgian marbles" in the civitas Tungrorum and beyond
Article Reference Modern diatoms assemblages from Chilean tidal marshes and their application for quantifying deformation during past great earthquakes.
Book Reference The luxurious lives of lords and ladies . Animal remains and their spatial distribution at Huis ter Kleef (c.1250-1573 AD)
Article Reference Digital mapping of coastal boulders – High-resolution data acquisition to infer past and recent transport dynamics.
Inbook Reference Noah’s flood – probing an ancient narrative using geoscience.
Inbook Reference Onshore archives of tsunami deposits
Inbook Reference Geological records of tsunamis and other extreme waves – concepts, applications and a short history of research
Book Reference Geological records of tsunamis and other extreme waves
Article Reference Karst depressions – key archaeological environments of south Qatar
Inbook Reference Paleogenetic approach in tsunami deposit studies
Inbook Reference Erosive impact of tsunami and storm waves on rocky coasts and post-depositional weathering of coarse-clast de-posits
Article Reference First assessment of the re-search potential of the prehistoric intermountain site ῌayl Al-ꜤĀja in the Al-Ḥajar Mountains of Northern Oman (Project SIPO).
Article Reference Significance of boulder shape, shoreline configuration and pre-transport setting for the transport of boulders by tsunamis
Inbook Reference Experimental models of coarse-clast transport by tsunamis
Article Reference Palaeoenvironmental and sea sevel changes during the early to mid-Holocene in eastern Saudi Arabia and their implications for Neolithic populations
Article Reference Are car-bonate barrier islands mobile? Insights from a mid- to late-Holocene system, Al Ruwais, northern Qatar
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