Karst aquifers are often protected by a thin mantle of unconsolidated sediment. Soil pipes
and sinkholes may breach this natural protective barrier and open pathways for …

The purpose of the geophysical campaign carried out in the Val d'Avaray was to contribute
to a reconstruction of fluvial dynamics in the middle reaches of the River Loire. The …

Filled or buried sinkholes pose a hazard to highway construction as they may be subject to
reactivation and subsidence, and may be sites of soil piping and erosion. These features are …

Flooding has long been a threat to human activities such as agriculture and transportation,
as well as to the longevity of bridges, dams, and human settlements. In floodprone areas it is …

Symposium on the Application of Geophysics to Engineering and Environmental Problems
1999 : Tests of Shallow‐Penetrating EM Sy Page 1 TESTS OF SHALLOW-PENETRATING EM …

Shallow (< 50 ft) frequency-domain electromagnetic (FDEM) induction surveying was
performed over an undeveloped, 35-acre area to delineate water-bearing characteristics of …

Abstract; This study compared three shallow-penetration EM systems by making surveys
along identical grids over a 1940s-era, abandoned, buried coal (?) bunker at the Denver …

Proper development planning can protect rare fen wetland areas. Regulations provide some
protections against direct impacts; however, indirect impacts can be just as devastating …

The diversion of natural river courses and subsequent filling by alluvial deposits or anthropic
intervention has been hidden by urban development in the majority of the cities. The …