Seismite and tsunamiite in urban environment (Lisbon)

Abstract

Since the Malta convention in 1992, the Portuguese law determines that all works affecting the basement/subsoil must be monitored by an archeological team, That was the case concerning the new Museum of Carriages (Museu dos Coches) in the present day noble urban area of Belém, where the demolition of existing buildings began in the spring of 2008 (fig.1 a and b). In July 2008, the SLIF team was contacted by the archeological team in charge in order to survey several outcrops. This survey was made possible by the opening of some ditches/ trenches (fig. 1c). Field work and data collection of a few outcrops was only permitted in a flash site intervention (2h30m) and was hampered by the urgency of the construction works and by the rising tide. The first results were presented in Vienna, during the General Assembly 2010 of the European Geosciences Union (Ana Ramos -Pereira et al., 2010). The authors decided to present here a brief note given the importance of the data collected, e.g., seismic manifestation in a sedimentary context (seismite) as well as the sedimentary tsunamic layer (tsunamiite), but also because the data is very important not only from the scientific point of view but also for spatial planning of an urban area.info:eu-repo/semantics/publishedVersio