Carte ; Géographie physique ; Manuel ; Monde ; Volcan ; Volcanisme
Manuel d'assez larges diffusion qui présente les grands volcans du monde selon un plan régional fondé sur les ensembles structuraux et les océans. Nombreuses cartes et photos en noir et en couleur. L'index recense plus de 1 600 volcans. (FC).
Evolution quaternaire du volcan Nisyros dans la mer Egée: croissance d'un strato-volcan dans lequel une caldeira se développe, dômes péléens, petits cônes vulcaniens et solfatares.
L'activité du volcan Arenal (Costa Rica), lors de l'éruption de 1968. Etude du cône volcanique à l'aide de la photographie aérienne et comparaison avec le volcan Chato (Costa Rica).
A group of Ar-K dating data of volcanic rocks in Taiwan Island is listed in this paper, which clarifies the data of volcanic activity. This volcanic activity is closely related with plate movement since Mesozoic. Now there are still manifestations
of volcanic actions such as hot springs or fumaroles or solfataras.
The Transdanubian basaltic volcanic activity presents several regularities that are exemined in this research. The areas of volcanism and the amount of basalts are examined. - (JS)
Geomorphological mapping with interest in the extent of glacial erosion giving, at the same time, a comprehensive treatment to a possible danger threatening Quito in case of a volcanic eruption of Pichincha. (MS).
This paper divides the volcanic landforms into 4 grades according to formation, morphology, annd ingredient of matter. Lava cones are divided into 2 types based on the force of top-support and the fluid form of magma : the arc-projecting type
and spring-spilling type. Furthermore, the courses of development of volcanic landforms are divided into 3 stages according to the form and strength of volcanic activities.
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
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
Formation and failure of volcanic debris dams in the Chakachatna River valley associated with eruptions of the Spurr volcanic complex, Alaska
Alaska ; Cold area ; Dam ; Glacial lake ; Holocene ; Lahar ; Mudflow ; Natural hazards ; Quaternary ; Stream ; Volcanic eruption ; Volcanism
In this paper, evidence for several episodes of debris dam formation associated with eruptions of the Spurr volcanic complex are described. Dam failure conditions and peak discharge are estimated with a dam-break model and regression equations
Iceland is one of the youngest territory of the Earth's surface. Together with glaciers volcanic activities contribute to another risk process called jökulhlaup. It is a large-scale flood event generated by a sudden drainage of the water contained
The Tokaj Mountains differ from the other volcanic mountains of Hungary by strike, heavy dissection, (a younger) age of volcanism, a great diversity of volcanic rocks, paleogeographic circumstances (frequent marine transgressions). The paper deals
with the volcanic forms in detail, with their types, with erosional and derasional valleys and their development. - (ZK)
Dendroindications of recent volcanic eruptions in Kamchatka, Russia
Dendrochronology ; Dendrology ; Kamtchatka ; Russia ; Volcanism
Precisely dated tree-ring sequences of larch (Larix cajanderi Mayr) extending from 1801-1980 AD from Kamchatka lying in the far east of Asian continent were studied to see the influence of volcanic eruptions on tree growth and to assess
the potential of tree rings for dating ancient volcanic events.
Physics and chemistry of arc magma| arc volcanism in time and space| geothermal and energetic aspects of arc volcanism| prediction, hazards and environmental aspects of volcanic activities. Fifteen selected papers.
Recent research achievements and a typology of volcanic mountains in Hungary in Environmental and dynamic geomorphology.
Methods of investigation included the comparisons of the geology of landforms and drainage pattern analyses. The latter is valuable in the reconstruction of volcanic forms, since they reflect primary forms which govern the processes of denudation
. On the basis of preservation of original volcanic forms, the volcanic mountains of Hungary are classified. (DLO).
L'activité du volcan Arenal (Costa Rica), lors de l'éruption de 1968| chronologie des faits, exposé des dommages causés et pétrologie de quelques roches éjectées par le volcan.