Erosion of primary volcanic depressions in the Inner Carpathian Volcanic Chain
Volcanic geomorphology
Caldera ; Carpathian Mountains ; Cenozoic ; Central Europe ; Crater ; Drainage network ; Erosion ; Europe ; Neogene ; Pleistocene ; Volcanism
Caldeira ; Carpates ; Cratère ; Cénozoïque ; Erosion ; Europe ; Europe centrale ; Néogène ; Pléistocène ; Réseau de drainage ; Volcanisme
This paper, summarising and evaluating regional data of recent research, focusses on the characteristics of erosion and drainage pattern observed on the youngest to oldest volcanic depressions of the Carpathians. Eroded craters, calderas, failure
The aim of this paper is to evaluate the effect of volcanic events on glaciations on the Tateyama Volcano during the last glacial period. For this purpose, this paper describes the distribution and stratigraphic relationships of the volcanic ejecta
The aim of this paper is to single out the relationships among the present landforms, their structural arrangement and the volcanic history of Central Italy. The morphological characteristics of the Roccamonfina volcano were examined through field
Geomorphic development of axial ranges in eastern North Island, New Zealand, correlated with ignimbrite volcanism in the Taupo volcanic zone
Cenozoic ; Fault ; Geomorphology ; New Zealand ; North Island ; Tectonics ; Vertical movement ; Volcanism
ranges were still submerged. Back-arc spreading extended from the Havre Trough to central North Island c.1.8 Ma. Eruption of ignimbrite began in central North Island c.1.1 Ma., and migrated to the Taupo Volcanic Zone c.0.6 Ma. Interrupted by a period
of inactive volcanism, the eruption revived in large magnitude c.0.33 Ma.
Parmi les volcans intraglaciaires examinés, 2 ont probablement fait éruption durant la glaciation de Fraser (11-20 ka), lorsque le niveau maximum ds glaces excédait 2100 m d'altitude. Mesure des concentrations des éléments majeurs et du soufre dans
Kvikuholf i gosbeltum Islands (Magma chambers in the volcanic zones of Iceland)
Considérations sur la formation et la dynamique des chambres magmatiques islandaises. Les volcanscentraux sont essentiellement alimentés à partir de chambres peu profondes, elle-mêmes rechargées à partir de réservoirs situés à 8-10 km de profondeur
Les anciens volcanscentraux islandais dont les caractéristiques ont été déterminées, dès 1963, sous l'impulsion de G.P.L. Walker, commencent à être inventoriés sur la plate-forme continentale islandaise. Un exemple très significatif a été relevé à
Geomorphology and changing environments in Central Europe
Basalt ; Differential erosion ; Hungary ; K/Ar dating ; Lava flow ; Maar ; Quaternary ; Tectonics ; Volcanism
Volcanism of different type and duration and the intensity of postvolcanic erosion are reflected by the recent landforms evolved on basalt surfaces in the Slovak Carpathians. The procedure of landform classification included the following steps
: reconstruction of the initial volcanic surface; identification of the postvolcanic processes remodelling the initial volcanic landforms; evaluation of the degree of remodelling based on the relevant properties of present-day basalt topography.
L'analyse du soufre dans le cratère actif du volcan Poas (Costa Rica), donne des indications sur les processus dynamiques auxquels sont soumis les fluides en cas d'activité secondaire de type geyser, activité typique de ce volcan pendant des siècles
. En outre, des observations ont montré que le cône pyroclastique situé dans la partie centrale du cratère repose sur une masse de lave: il ne s'agirait que d'une couche recouverte par les matériaux des éruptions de 1953, éruptions au cours desquelles
a disparu le grand lac du cratère et s'est formé l'actuel cône central.
Outline of the hydrogeology of the Cimino and Vico Volcanic area and of the interaction between groundwater and Lake Vico (Lazio region, Central Italy)
The study area covers the Cimini and Vico volcanic complexes in the province of Viterbo (Northen Lazio Region, Italy), where a large-scale exploitation of the water resources co-exists with fragile environmental conditions. The main aim of the study
Etude du paléomagnétisme des Volcanites de Selkirk et des sédiments stratifiés à proximité d'âge Pléistocène pour dater les glaciations qui marquèrent le début du Pléistocène dans la partie centrale du Yukon. Les AA. démontrent que les âges
volcanism in this part of the Central Apennines has allowed for the acquisition of some useful morpho-stratigraphic, palaeoenvironmental information. This sector is a key area to be considered for a future morpho-evolutional reconstruction of the entire
This paper presents the results of a geological and geomorphological study carried out in the central-western area of the Carsoli basin (AQ) during the survey of the Geomorphological Sheet 367 Tagliacozzo. The existence of a local Middle Pleistocene
Heretofore very little research has been done on a specific soil type in Hungary called „erubáz”, which develops on volcanic rocks. Its largest uniform and unbroken spot is located in the central part of Börzsöny Mountains (High Börzsöny