Preparing rock compartments  for blasting on a 100 m high coastal cliff (La Réunion, 2006). © BRGM - Jean-Louis Nedellec


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Protecting drinking water resources: Identification and delimitation of a protected drinking water area

In 2017, the town of Pontcharra (Isère) wanted a more comprehensive understanding of the issues involved and necessary conditions for preserving its groundwater. To this end, it jointly designed and then launched, with the support of BRGM, a hydrogeological study to confirm the high potential of...

Assessment of the impact of PPR red zones on real-estate transactions on Reunion Island

The population of Reunion Island is highly exposed to natural risks, mainly due to rapid urbanisation driven by population growth (according to INSEE the island is projected to have one million inhabitants by 2037). The necessary implementation of risk prevention plans (PPRs) has therefore raised...

Characterisation of sedimentary stocks and dynamics at Bidart and Guéthary beaches for operational management purposes

The storms of winter 2013/2014 had a major impact along the Basque coast. Scientific observation of the flooding and erosion processes affecting the Basque coast needs to be maintained and reinforced prior to the implementation of coastal risk management and prevention policies adapted to the...

Coltan mining in French Guiana: outlook for the South American market

Besides gold, coltan (columbite-tantalite) could have market potential for French Guiana for the entire South American continent. There are around thirty known occurrences of this strategic metal ore (niobium and tantalum), mainly distributed in the north of what is known as the Guiana Shield.

Multi-hazard mapping as part of the revision of the local urban planning scheme for the city of Belfort

The departmental ground instability atlas for the Territoire de Belfort highlights in particular the significance of the risks associated with karstic collapse/subsidence, landslides and falling boulders. It is therefore essential to take these phenomena into account for spatial planning and...

Regional master plan of quarries in Occitanie: inventory of primary resources

The Occitanie regional quarry master plan (SRC) is intended to replace the 13 existing departmental quarry plans for the region. Work to draw up the SRC began in Occitanie in 2018, and addresses environmental issues, needs and uses, logistics and, in particular, primary and secondary resources....

Review of world copper supply in 2019

This analysis aims to improve understanding of the copper market in order to gain a better insight into the copper supply chain, from mining exploration through to the manufacture of copper cathodes, which are used to make semi-finished and then manufactured products.

Assessment of the hazard of falling boulders on the eastern flank of the Calanque de Port-Miou in Cassis (Bouches-du-Rhône)

BRGM assessed the rock hazard on the eastern flank of the Calanque de Port-Miou with the new MEZAP method (used for zoning rockfall hazards as part of natural risk prevention plans), which had been adapted to the local context in terms of timing and intensity to take account of specific...


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