Search Results

1 - 8 of 8 items :

  • "volcanic hazard" x
Clear All

Shallow-seated controls on the evolution of the Upper Pliocene Kopasz-hegy nested monogenetic volcanic chain in the Western Pannonian Basin (Hungary)

Monogenetic, nested volcanic complexes (e.g. Tihany) are common landforms in the Bakony-Balaton Highland Volcanic Field (BBHVF, Hungary), which was active during the Late Miocene up to the Early Pleistocene. These types of monogenetic volcanoes are usually evolved in a slightly different way than their "simple" counterparts. The Kopasz-hegy Volcanic Complex (KVC) is inferred to be a vent complex, which evolved in a relatively complex way as compared to a classical "sensu stricto" monogenetic volcano. The KVC is located in the central part of the BBHVF and is one of the youngest (2.8-2.5 Ma) volcanic erosion remnants of the field. In this study, we carried out volcanic facies analysis of the eruptive products of the KVC in order to determine the possible role of changing magma fragmentation styles and/or vent migration responsible for the formation of this volcano. The evolution of the KVC started with interaction of water-saturated Late Miocene (Pannonian) mud, sand, sandstone with rising basaltic magma triggering phreatomagmatic explosive maar-diatreme forming eruptions. These explosive eruptions in the northern part of the volcanic complex took place in a N-S aligned paleovalley. As groundwater supply was depleted during volcanic activity the eruption style became dominated by more magmatic explosive-fragmentation leading to the formation of a mostly spatter-dominated scoria cone that is capping the basal maar-diatreme deposits. Subsequent vent migration along a few hundred meters long fissure still within the paleovalley caused the opening of the younger phreatomagmatic southern vent adjacent to the already established northern maar. This paper describes how change in eruption styles together with lateral migration of the volcanism forms an amalgamated vent complex.

2006;63:149-56. Volcano hazards and prediction of volcanic eruptions. Volcano hazards [pristup 04. travnja 2007.]. Dostupno na http://www.tulane.edu/čsanelson/geol204/volhaz&pred.html Tayag JC, Punongbayan RS. Volcanic disaster mitigation in the Philippines: experience from Mt. Pinatubo. Disasters 1994;18:1-15. Bernstein SR, Buist AS. Public health aspects of volcanic hazards: Evaluation and prevention of excessive morbidity and mortality due to natural disasters. Disasters 1984;8:6-8. Horwell JC, Baxter JP. The respiratory health hazards of volcanic ash: a

outskirts of Euopean cities’, in Structures. European Cities: Insights on Outskirts , eds A Borsdorf & P Zembri, Paris, pp. 7–30. Brown, E, Werne, J, Lozano-García, S, Caballero-Miranda, M, Ortega-Guerrero, B, Cabral, E, Valero & Schwalb, A 2012,‘Scientifc drilling in the Basin of Mexico to evaluate climate history, hydrological resources, and seismic and volcanic hazards’, Scientifc Drilling , vol. 14, pp.72–75. Center for Social Research (CSR) 2007, National Cadastre of Encapment . Available from: <http://www.untechoparachile. cl/subsitios/cis/web>. [2 August 2013

’ (chapters 39 to 44) and finally ‘Investigating volcanic interaction’ (chapters 45 to 50), ‘Volcanic hazards’ (chapters 51 to 62),’ Eruption response and mitigation’ (chapters 63 to 70) and ‘Economic benefit and cultural aspects of volcanism’ (chap- ters 71 to 78). Among the things I like to mention here are the two chapters dedicated to pyroclastic currents, that replace the old concepts of pyro- clastic flow and surge. The description of depos- its and processes of the most hazardous volcanic phenomena fills an obvious gap of the previous edition. Subplinian and

.1016/0009-2541(87)90106-9 [40] Waythomas CF, Walder JS, McGimsey RG and Neal CA, 1996. A catastrophic flood caused by drainage of a caldera lake at Aniakchak Volcano, Alaska, and implications for volcanic hazards assessment. Geological Society of America Bulletin 108(7): 861–871, DOI 10.1130/0016-7606(1996)108〈0861:ACFCBD〉2.3.CO;2. http://dx.doi.org/10.1130/0016-7606(1996)108<0861:ACFCBD>2.3.CO;2

Geologici Camerti 2 219 237 (in Italian with English abstract) Dolfi D., De Rita D., Cimarelli C., Mollo S., Soligo M. & Fabbri M. 2007: Dome growth rates, eruption frequency and assessment of volcanic hazard: Insights from new U/Th dating of the Panarea and Basiluzzo dome lavas and pyroclastics, Aeolian Islands, Italy. Quaternary Internat. 162, 182–194. Dolfi D. De Rita D. Cimarelli C. Mollo S. Soligo M. Fabbri M. 2007 Dome growth rates, eruption frequency and assessment of volcanic hazard: Insights from new U/Th dating of the Panarea and Basiluzzo dome lavas and

P., RUIZ-FERNÁNDEZ J., TRIGO R., 2017, Recent regional climate cooling on the Antarctic Peninsula and associated impacts on the cryosphere. Science of the Total Environment, 580: 210–223. PARK H., LEE S.H., KIM M., KIM J.H., LIM H.S., 2010, Polychlorinated biphenyl congeners in soils and lichens from King George Island, South Shetland Islands, Antarctica. Antarctic Science, 22(01): 31−38. PEDRAZZI D., AGUIRRE-DÍAZ G., BARTOLINI S., MARTÍ J., GEYER A., 2014, The 1970 eruption on Deception Island (Antarctica): eruptive dynamics and implications for volcanic hazards

possible for Clermont-Ferrand. Tens of schools are built on the lavas or near to their front, and this can be used to raise awareness about the local geology and related volcanic hazards. Renewal of activity in the Chaîne des Puys is possible, and future eruptions could affect the city ( Latutrie et al. 2015 ). The current position of the Grave Noire lava as a topographic high, while it originally filled a valley, also indicates the scale of changes to a landscape (driven by erosion) that can take place in just 50,000 years. Inverted relief is a key element of the