A powerful, easily manageable low-frequency (5 Hz) equipment has been developed for a geoelectric survey in Flanders (Belgium). In the potential part of the equipment, filters eliminate the industrial potentials (50Hz) and the low-frequency natural
Permafrost thickness and distribution in Finnish Lapland - Results of geoelectrical soundings
Finlande ; Géographie de l'Europe ; Lapland ; Permafrost ; Périglaciaire ; Sondage géoélectrique ; Zone froide
Geoelectrical soundings were carried out in 29 different places in order to find permafrost and to measure its thickness. In most places above timber line a permafrost thickness of 10-50 m was recorded. Permafrost was found at sites with thin snow
Origin and geoelectrical resistivity of rockglaciers in semi-arid subtropical mountains (Andes of Mendoza, Argentinia)
D'après les résultats des sondages géoélectriques effectués, il semble que les glaciers rocheux d'El Sato et de Morenas Coloradas représentent des formes périglaciaires et non des formes glaciaires. Ils ne contiennent aucun noyau de glace mais bien
Escarpement de faille ; Faille ; Géographie de l'Europe ; Pays-Bas ; Rejeu tectonique ; Sondage géoélectrique ; Technique de recherche ; Tectonique
With the help of geoelectric research the location of the Bichterweert scarp at the bottom of the Maas valley bottomgravels was determined. The scarp belongs to the Feldbiss fault system. It is the result of movements of Saalian and Weichselian age
Permafrost below the timberline confirmed and characterized by geoelectrical resistivity measurements, Bever Valley, eastern Swiss Alps
Les résultats des mesures géoélectriques, dans la vallée de la Bevers en Haute Engadine à 1840 m d'altitude, ont indiqué la présence de plusieurs lentilles fines de pergélisol alors que les sondages sont effectués sous la limite des arbres. La
Reconstruction of a colluvial body using geoelectrical resistivity
. A l'aide d'une série de sondages et de mesures de résistivité électrique, les AA. ont pu reconstruire le volume de ce corps colluvial. Pour les AA., l'existence d'un corps colluvial, même de petite taille, mais dans une situation de pente si inattendue
Geoelectric deep sounding. A contribution to constraining the genesis of siliceous ferromanganese duricrusts on deeply weathered Paleozoic basement rocks (N Bavaria, FR of Germany)
A l'aide de cartographie de surface et de sondage géoélectriques profonds, l'A. a tenté d'établir le profil de la zone d'altération profonde contenant les concrétions de Fe-Mn, dans la région de Stegenwaldhaus, Bavière. La couverture limoneuse
Inversion and interpretation of two-dimensional geoelectrical measurements for detecting permafrost in mountainous regions
The use of tomographic geoelectrical measurements for the detection of ground ice occurrences in mountainous regions is evaluated. Because isolated ground ice occurences in a warming climate may be subject to rapid thawing, they present a future
A mathematical model of the hydrogeological system of the dune area of De Panne is presented, dealing with the saturated and unsaturated zones. The hydrochemistry of the aquifer has been investigated by chemical analyses and geoelectrical well
The contribution of geoelectrical investigations in the analysis of periglacial and glacial landforms in ice free areas of the Northern Foothills (Northern Victoria Land, Antarctica)
Reconnaissance surveys of contemporary permafrost environments in central Iceland using geoelectrical methods : implications for permafrost degradation and sediment fluxes
Internal structure and permafrost characteristics of the rock glaciers of Southern Carpathians (Romania) assessed by geoelectrical soundings and thermal monitoring
Six rock glaciers in the Southern Carpathians have been investigated by means of geoelectrical soundings in order to detect their internal stratigraphy and the existence of frozen sediments. In the case of 3 relict rock glaciers, the electrical
The extent of permafrost in 9 talus slopes located within the alpine periglacial belt in the western Swiss Alps was investigated using ground surface temperature measurements and one-dimensional geoelectrical profiles. The cooling of the ground
The application of the geoelectric method is illustrated for the use in unconsolidated sediments. The Quaternary geology of the northern Campine area is studied by means of vertical electric soundings. The various lithologic units are detected
In the article the use of geoelectrical measurements in geomorphology is described. The material in the bottom of dells was analyzed near Žibrše at Logatec in SW Slovenia. The results are comparable to the ones already published elsewhere
This paper reports results of the application of combined refraction and geoelectric geophysical methods to the study of the El Paso rock glacier in the arid Andes of Argentina. The geophysical results permit a first estimate of the volume of water