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Mostrando ítems 11-20 de 54
Magmatic differentiation at La Poruña scoria cone, Central Andes, northern Chile: Evidence for assimilation during turbulent ascent processes, and genetic links with mafic eruptions at adjacent San Pedro volcano
(Elsevier B.V., 2019)
La Poruña (21°53′S; 68°30′W) is a 140 m high scoria cone composed of pyroclastic material and an extensive basaltic-andesite to andesite lava flow that is up to 8 km in length. Automated mineralogical analysis describes a ...
Subsurface architecture of Las Bombas volcano circular structure (Southern Mendoza, Argentina) from geophysical studies
(Pergamon-Elsevier Science Ltd, 2017-08)
The Plio-Pleistocene Llancanelo volcanic field is located in the south-eastern region of the province of Mendoza, Argentina. This wide back-arc lava plateau, with hundreds of monogenetic pyroclastic cones, covers a large ...
Vent distribution in the Quaternary Payún Matrú Volcanic Field, western Argentina: Its relation to tectonics and crustal structures
(Elsevier Science, 2014-05)
The Payún Matrú Volcanic Field consists of two polygenetic and mostly trachytic volcanoes (Payún Matrú with a summit caldera and Payún Liso) along with around 220 scoria cones and basaltic lava flows. This volcanic field ...
Estudio comparativo de morfometría e historia erosiva en campos volcánicos monogenéticos intracontinentales de la patagonia septentrionalComparative study of morphometry and erosive history of intracontinental monogenetic volcanic fields of northern patagonia
(Sociedad Argentina de Estudios Geográficos, 2015-11)
Se aplicaron las técnicas de morfometría volcánica para caracterizar campos volcánicos monogenéticos de Patagonia Norte y para calcular edades relativas de los mismos. Los conos piroclásticos, principalmente de escoria y ...
The 1723 A.D. violent strombolian and phreatomagmatic eruption at Irazú Volcano, Costa Rica
(Universidad de Costa Rica, 2013)
Tortonian trachyte volcanoe in the Alta Sierra de Somún Curá Volcanic Complex: Northern Extrandean Patagonia. Argentina
(Universität Hamburg, 2019)
The Miocene Alta Sierra de Somún Curá Volcanic Complex (ASSCVC) is the northernmost post-plateau complex of the Somún Curá Magmatic Province (SCMP), at the northern extrandean Patagonia, Argentina (Fig. 1a, b). ASSCVC is ...
Evolution of Parinacota volcano, Central Andes, Northern Chile
(Servicio Nacional de Geología y Minería (SERNAGEOMIN), 2004)
Neogene monogenetic volcanism from the Northern Puna region: products and eruptive styles
(Geological Society of London, 2017-09)
The Neogene mafic volcanism of the Northern Puna region in the Central Andes isrepresented by scoria cones and lava flows dispersed over a wide region (c. 9150 km2) as isolated or poorly clustered centres. Although all the ...
Geology of El Misti volcano near the city of Arequipa, Peru
(Geological Society of America, 2001-12)
Approximately 750 000 people live at risk in the city of Arequipa, whose center lies 17 km from the summit (5820 masl [meters above sea level]) of the active El Misti volcano. The composite edifice comprises a stratovolcano ...