Concept

Lithologie

Publications associées (32)

Influence of rock fragment coverage on soil erosion and hydrological response: Laboratory flume experiments and modeling

David Andrew Barry, Alessandro Brovelli, Seifeddine Jomaa

Two laboratory flume experiments on the effect of surface rock fragments on precipitation-driven soil erosion yields were carried out. The total sediment concentration, the concentration of seven individual size classes and the flow discharge were measured ...

American Geophysical Union2012

Using predisposition factors for landslide hazard assessment: a new GIS-based methodology

Aurèle Parriaux, Séverine Bilgot

Switzerland is exceptionally subjected to landslides; indeed, about 10% of its area is considered as unstable. Making this observation, its Department of the Environment (BAFU) introduced in 1997 a method to realize landslide hazard map. It is routinely us ...

2009

On neutral metacommunity patterns of river basins at different scales of aggregation

Andrea Rinaldo, Enrico Bertuzzo

Neutral metacommunity models for spatial biodiversity patterns are implemented on river networks acting as ecological corridors at different resolution. Coarse-graining elevation fields (under the constraint of preserving the basin mean elevation) produce ...

2009

Using geotypes for landslide hazard assessment and mapping: a coupled field and GIS-based method

Aurèle Parriaux, Séverine Bilgot

Switzerland is exceptionally subjected to landslides; indeed, about 10% of its area is considered as unstable. Making this observation, its Department of the Environment (BAFU) introduces in 1997 a method to realize landslide hazard maps. It is routinely u ...

Copernicus GmbH2009

GIS-based method for groundwater management and protection: geotypes serving 3D applications

Aurèle Parriaux, Séverine Bilgot

Sustainable management of underground natural resources is more and more a worthwhile topic. In particular, worrying about groundwater protection becomes imperative. Taking into account the increase of incompatibilities between water conservation and the u ...

2009

Influence of environmental factors on the structures of bacterial communities in a chloroethene – contaminated aquifer

Christof Holliger, Pierre Rossi, Noam Shani

Numerous industries have been using chloroethenes (CEs), mainly tetrachloroethene and trichloroethene, as non-flammable solvents since the beginning of the 20th century. Massive usage, along with careless handling and storage, made CEs one of the most abun ...

2009

Evidence of inception horizons in karst conduit networks

Laurent Tacher, Marco Filipponi, Pierre-Yves Jeannin

This paper outlines the conclusion from an analysis of 18 large cave systems around the world, comprising more than 1500 km of conduits. The 3D geometry of complex cave systems have been analysed in relation to their geological context as well as their hyd ...

2008

Akimotoite in the Tenham meteorite: Crystal chemistry and high-pressure transformation mechanisms

Philippe Gillet, Pierre Beck

The transformation of pyroxene to its high-pressure polymorph akimotoite (MgSiO3 ilmenite type structure) is documented in the shock-induced melt veins of the L6 Tenham chondrite. Four textural relationships between pyroxene and akimotoite are observed in ...

2008

Origin of salts in stone monument degradation using sulphur and oxygen isotopes: First results of the Bourges cathedral (France)

Christophe Gosselin

The crystallisation of soluble sulphate salts is one of the most important factors of stone monument degradation. The origin of these salts is variable: Marine, air pollution, building or restoration material. The lack of certainty about these sources repr ...

2006

Hydraulic networks in nature

Andrea Rinaldo

The analysis of natural hydraulic networks over a wide range of scales,:allowed by modem digital mapping technology, reveals extraordinary diversity of natural forms, and yet deep regularity and symmetry, regardless of geology, climate, vegetation or expos ...

1999

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