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Inproceedings Reference Octet Stream The QuakeRecNankai project: reconstructing past earthquakes and tsunamis along the Nankai Trough, south central Japan
The Nankai-Suruga subduction zone faces the densely populated and highly industrialised coastline of south central Japan. The largest possible class of earthquake on the subduction interface could exceed magnitude 9, with tsunami travel times to the closest shorelines of less than 30 minutes. In this presentation, we review geological evidence for past earthquakes and tsunamis in this region and introduce the QuakeRecNankai project, a Belgian, Japanese and German collaboration that aims to reconstruct past seismic shaking and tsunami occurrence from Lake Hamana and the Fuji Five Lakes at the eastern end of the Nankai Trough.
Located in Library / No RBINS Staff publications
Inproceedings Reference The QuakeRecNankai project: Palaeoseismic data for improved seismic hazard assessment along the Nankai Trough, Japan
Located in Library / No RBINS Staff publications
Inproceedings Reference Troff document The QuakeRecNankai project: Towards New Geological Evidence of Past Earthquakes and Tsunami Along the Nankai Trough, Japan
The east coast of Japan is prone to tsunamigenic megathrust earthquakes, as tragically demonstrated in 2011 by the Tōhoku earthquake (Mw 9.0) and tsunami. The Nankai Trough subduction zone, to the southwest of the area affected by the Tōhoku disaster and facing the densely populated and heavily industrialized southern coastline of central and west Japan, is also expected to generate another great megathrust earthquake and tsunami in the near future. Historical records suggest the subduction zone segmented and characterized by a variable rupture mode, involving single- as well as multi-segment ruptures, with immediate implications for the tsunamigenic potential. This renders the collection of sufficiently long records of past earthquakes and tsunami in this region fundamental for adequate hazard and risk assessment. In response to the 2011 Tōhoku earthquake, the Cabinet Office of the Japanese government proposed new guidelines for assessing the risk of similar earthquakes affecting the Nankai subduction zone (Central Disaster Management Council, 2011). These guidelines advocate renewed investigation of earthquake and tsunami occurrence over historical and longer timescales, with a particular focus on defining the largest possible magnitudes. The QuakeRecNankai project contributes to this goal by generating a long and coherent time series of megathrust earthquake and tsunami recurrences along the Nankai Trough subduction zone by integrating all existing evidence with new geological records of paleo-tsunami in the Lake Hamana region and of paleo-earthquakes from selected lakes in the Mount Fuji area. We combine extensive fieldwork in coastal plain areas and lakes with advanced sedimentological and geochemical analyses and innovative dating techniques.
Located in Library / No RBINS Staff publications
Inproceedings Reference The record of a major storm event during the Middle Lutetian: the “Campanile giganteum” horizon preserved in Fleury-la-Riviere (Paris basin).
Located in Library / RBINS Staff Publications 2018
Inproceedings Reference The red crinoidal limestone of Baelen (Late Upper Devonian): a particular historical building stone with an unusual depoistional setting, global importance and local use
Located in Library / RBINS Staff Publications
Article Reference The Red Marble of Baelen, an exceptional mid-Famennian mud mound complex in a carbonate ramp setting from Eastern Belgium
Located in Library / RBINS Staff Publications
Inbook Reference The Red Marble of Baelen, an exceptional mid-Famennian mud mound complex in a carbonate ramp setting from Eastern Belgium
Located in Library / RBINS Staff Publications
Inproceedings Reference The relationship between taxonomic diversity and aboveground carbon storage is taxon-specific
Located in Library / RBINS Staff Publications 2017
Proceedings Reference The reproductive behavior of two sympatric Ophthalmotilapia species (Ectodini) from Lake Tanganyika
Located in Library / RBINS Staff Publications
Inproceedings Reference The RESPONSE project: Reactive transport modelling of point source contamination in soils and groundwater
Point source contaminations origin from historic or current activities and occur in a variety of forms, extents and contaminants involved (e.g. landfills, industrial facilities, storage tanks, disposal of hazardous waste). Point source contaminations may pose risks to human health and the environment; it is therefore important to develop/improve current methodologies to assess the migration potential of contaminants in groundwater. Groundwater quality monitoring around contaminated sites is typically done by sampling piezometers. Modelling approaches can help to predict the spatial and temporal evolution of contamination plumes, design remediation strategies and assess health and environmental risks. Reactive transport models can potentially improve the prediction of contaminant routes, as they explicitly account for changing geochemical environments and chemical reactions during transport. In spite of recent advances, real-world applications remain scarce as these require large numbers of site-specific parameters. The aim of the RESPONSE project is to improve the use of reactive transport models that simulate the fate of inorganic and organic contaminants in soils and groundwater. More specifically, this project aims to (1) identify the minimum amount of site-specific parameters needed to predict reactive transport of inorganic pollutants (e.g. heavy metals) and (2) improve/simplify the modelling of transport of xenobiotic organic contaminants (XOC, e.g. hydrocarbons and pesticides). The transport of XOCs is particularly complex to model due to the effects and zonation of microbial activity at the plume fringe in polluted aquifers. The RESPONSE project focusses on typical groundwater pollution problems encountered around old municipal landfill sites and cemeteries. Municipal landfills can still release hazardous pollutants such as heavy metals and XOCs, even if they are covered by fresh ground layers after abandonment. Cemeteries can be considered a special case of landfill, releasing various compounds to the environment such as arsenic, mercury, bacteria, viruses and herbicides. Both location types are potential point sources for mixed groundwater pollution, typically including high concentrations of dissolved organic carbon (DOC), heavy metals and XOCs. The methodology in this project involves both experimental and modelling aspects. During the first screening stage, groundwater samples were collected from shallow piezometers at fifteen contaminated sites across Belgium (municipal landfills and cemeteries). Also, an improved reactive transport model is built based on HYDRUS1D-MODFLOW-PHREEQC to explicitly account for the dynamic behaviour of chemical conditions at the soil-ground water interface. Next, based on laboratory analyses, three case-study sites will be selected for further modelling and testing.
Located in Library / RBINS Staff Publications 2018