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  • Volcanic activity in Taiwan
  • Cenozoic ; Dating ; Fault ; Geothermics ; K/Ar dating ; Plate tectonics ; Quaternary ; Taiwan ; Volcanic eruption ; Volcanism
  • 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.
  • Basalt ; Hungary ; Volcanic activity ; Volcanism
  • 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)
  • The evolution and the recent volcanic activity of Pichincha, Ecuador
  • Activité volcanique ; Equateur ; Géographie de l'Amérique ; Géomorphologie volcanique ; Modelé glaciaire ; Pichincha ; Risque ; Volcan ; Volcanisme
  • 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).
  • Volcanic hazards and jökulhlaups in Iceland
  • Glacial features ; Glacier ; Iceland ; Inundation ; Island ; Lava flow ; Meltwater ; Mudflow ; Natural hazards ; Volcanic activity ; Volcanism
  • 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
  • Arc Volcanism : physics and tectonics.
  • 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.
  • On the damage caused by volcanic eruptions with special reference to tephra and gases in Volcanic activity and human ecology.
  • The recent evolution of the Sinis region (western coast of Sardinia, Italy) on the basis of new radiometric data of the pliocenic volcanism
  • Geochronology ; Geomorphology ; Isotope analysis ; Italy ; Pleistocene ; Pliocene ; Sardegna ; Volcanism
  • The present paper focuses on the relationships between Pliocene volcanic activity and geomorphological evolution of Sinis region (western Sardinia, Italy). Plio-Pleistocene volcanic activity plays a key role in the recent landscape evolution
  • . Morphological evolution has been reconstructed on the basis of chronological data obtained on different volcanic episodes. - (NF)
  • A study on neogene volcanic landforms of the middle Tanlu fault belt
  • Caldera ; Cenozoic ; China ; Erosion ; Fault ; Lava ; Neogene ; Shandong ; Typology ; Volcanic ash ; Volcanism
  • 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.
  • 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
  • Carpates ; Géomorphologie structurale ; Montagne ; Roumanie ; Volcan ; Volcanisme
  • Carpathian Mountains ; Mountain ; Romania ; Structural geomorphology ; Volcanism ; Volcano
  • This research outlines the evolution of the Hargita and Görgényi Mountains, the southern part of the Eastern Carpathian Volcanic Chain. On the basis of arguments in the paper, the one-stage origin of the volcanic activity is advanced. The style
  • and degree of degradation of the landforms after the volcanic activity is also discussed. - (JS)
  • How liverworts build hanging gardens from volcanic ash in Costa Rica
  • Biogéographie ; Cendre volcanique ; Colonisation végétale ; Costa Rica ; Micromorphologie ; Plante pionnière ; Volcan ; Végétation
  • Biogeography ; Costa Rica ; Micromorphology ; Plant colonization ; Vegetation ; Volcanic ash ; Volcano
  • The AA. report how a pioneer liverwort, Nardia succulenta, stimulates accretion of volcanic ash, creating layers adhering to vertical bare cliffs and bridging fresh volcanic boulders, as well as creating habits that probably favour the liverworts
  • and facilitate occupation by vascular plants. The study site is on a foot slope of the 1968 cone of the volcano Arenal, an active strato-volcano in Costa Rica.
  • The relationship of large volcanic eruption in the world and the summer drought/flood in China
  • China ; Drought ; Flood ; Precipitation ; Sichuan ; Statistics ; Summer ; Temperature ; Volcanic eruption ; Weather type
  • Based on data in the last 500 years for strong volcanic activity and the summer drought/flood types available in China, the statistical relations of the volcanic eruptions in seasons and several regions and the drought/flood types and grade index
  • of main regions in China have been investigated. The possible teleconnection between flood in the Yangtze River and the Haihe River valleys in 1991 and the volcanic eruption of Mt Pinatubo in June of 1991 has been also examined.
  • Seismipedoturbations in volcanic soils in North-Eastern Ecuador
  • Earthquake ; Ecuador ; Geochemistry ; Landslide ; Mass movement ; Pedogenesis ; Soil ; Soil properties ; Volcanic soil ; Volcanism
  • On 5 March 1987 two earth tremors caused topsoil and turf overturning, cracks in the ash mantle, and probably also cracks in soil profiles. In seismically active regions such episodic events may substantially influence soil profile development.
  • Carpathian Mountains ; Hungary ; Romania ; Slovak Republic ; Volcanic eruption ; Volcanism
  • Based on observations, the A. concluded that the possible continuation of the volcanic activity in the Carpathian-Pannonian region is not just a pure speculation, but is supported by scientific data. Thus, detailed, integrated researches
  • on the possible future volcanism are crucial. - (AM)
  • and volcanic activity at a spreading centre, and the second phase involved a period of off-axis volcanic and tectonic activity.
  • Consideration of the structure and morphology of the study area as a whole, as well as that of a small constructional volcanic hill suggests that it evolved in two phases. The principal phase of development involved a period of crustal extension
  • KARAPINAR, EREGLI VE AKSARAY ARASINDA KALAN MINTAKADA UST-PLIOSEN-KUATERNER VOLKANIZMASI VOLCANIC ACTIVITY AMONG KARAPINAR, EREGLI AND AKSARAY DURING UPPER PLIOCENE-QUATERNARY
  • Seismicity and submarine Volcanic activity in French Polynesia
  • Assessment of volcanic hazards in the area of Arequipa City, based on the eruptive history of the Misti Volcano, Southern Peru
  • Volcanic geomorphology
  • Geochronology ; Lava flow ; Natural hazards ; Peru ; Photointerpretation ; Pyroclastic ; Quaternary ; Stratigraphy ; Tephrochronology ; Volcanic eruption ; Volcanism
  • The AA. present the geological and volcanic setting of the Misti volcano which encompasses 2 edifices : the old Misti stratovolcano and the young Misti stratocone. They analyze the stratigraphy and the chronology of its eruptive activity
  • , in particular over the past 100,000 years : 7 compound groups of deposits record the late Pleistocene eruptive of the modern Misti stratocone. Then, they aim to assess the volcanic hazards of future eruptions at Misti, based on mapping, recent eruptive deposits
  • , and models used on similar stratovolcanoes : 700,000 people in the Arequipa-Chiguata region are threatened by at least 4 types of volcanic hazards.
  • Rapid deglaciation as an initiator of volcanic activity: an hypothesis
  • L'activité volcanique sur l'île Marion ne s'est produite que pendant les interglaciaires. La répartition des volcans est associée à un système de failles radiales et périphériques qui serait le résultat de la déglaciation, la localisation des
  • failles étant due aux pressions différentielles entre surface englacées et surfaces non englacées pendant le relèvement isostatique. La région étant située dans un secteur actif, ces failles auraient entraîné la formation de volcans sur l'île.
  • L’influence des éruptions du volcan Klioutchevskoï sur la végétation
  • Asian part of Russia ; Ecosystem ; Impact study ; Kamchatka ; Lava flow ; Russian Far East ; Vegetation ; Volcanic activity ; Volcanism ; Volcano
  • Activité volcanique ; Coulée de lave ; Dal'nij Vostok ; Ecosystème ; Etude d'impact ; Kamčatka ; Russie d'Asie ; Volcan ; Volcanisme ; Végétation
  • Actividad volcánica ; Colada de lava ; Ecosistema ; Estudio de impacto ; Extremo Oriente ruso ; Kamcatka ; Rusia de Asia ; Vegetación ; Volcanismo ; Volcán
  • Etude de l’importance et des types d’impacts causés par l’activité volcanique sur la végétation de la zone proche du volcan Klioutchevskoï, l’un des plus importants de la Russie. L’A. montre que ces éruptions causent des dégâts sans précédent sur
  • l’écosystème d’une grande partie du territoire. Il analyse également les conséquences des impacts directs dûs à l’activité explosive et effusive du volcan.
  • Geomorphological evidence towards a de-glacial control on volcanism
  • Cold area ; Geomorphogenesis ; Glaciation ; Holocene ; Ice breakup ; Iceland ; Volcanic activity ; Volcanism
  • this to the recession and downwasting of the LGM ice sheet. Their observations suggest that as the overlying ice sheet became thinner volcanic activity became more explosive. For northern Iceland, their proposed sequence of landscape development suggests 2 major glacial
  • advances during the Holocene, at least one of which at Kverkfjöll probably coincided with volcanic activity and a jökulhlaup.
  • The AA. describe and explain a regional topographic and geomorphic expression of sub-glacial volcanism, namely that at Kverkfjöll, Iceland. This area comprises a series of parallel sub-glacially-erupted volcanic edifices, which together give
  • excellent 3D geological exposure. These ridges are orientated north-south or along the most probable line of LGM ice margin retreat. The AA. combine topographic and geomorphic observations to explain the changing style of volcanism in space, and attribute