Video Experimental Relacionado
Updated: Jul 16, 2026
07:58
Data Processing Methods for 3D Seismic Imaging of Subsurface Volcanoes: Applications to the Tarim Flood Basalt
Published on: August 7, 2017
Ascenso de magma y la presurización del sistema volcánico del Etna
Domenico Patanè1, Pasquale De Gori, Claudio Chiarabba
1Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Catania, Piazza Roma, 2, 95123 Catania, Italy. patane@ct.ingv.it
Science (New York, N.Y.)
|February 8, 2003
Resumen
El Etna experimentó una rápida inflación y represionización de su sistema de tuberías de magma entre 1994 y 2001. Esto condujo a un aumento de la sismicidad y a erupciones explosivas recientes, incluida la en curso desde octubre de 2002.
Área de la Ciencia:
- Volcanología Volcanología.
- La geofísica es la geofísica.
Sus antecedentes:
- El Etna mostró deflación entre 1991 y 1993, seguido de una rápida inflación.
- La intrusión de magma desde 1994 ha llevado a erupciones en la cumbre y los flancos a partir de 1998.
Objetivo del estudio:
- Para analizar los datos de deformación geodésica y sísmica de 1994-2001.
- Para comprender los procesos subterráneos que impulsan la reciente actividad eruptiva del Etna.
Principales métodos:
- Análisis de datos geodésicos (deformación del suelo).
- Análisis de los datos de deformación sísmica.
- Interpretación de la dinámica del magma subterráneo.
Principales resultados:
- Los datos indican una compresión radial alrededor de una intrusión axial entre 1994 y 2001.
- La evidencia sugiere la represurización del sistema de tuberías del Monte Etna a una profundidad de entre 6 y 15 km.
- Esta represurización desencadenó la sismicidad y la dilatación volcánica.
Conclusiones:
- La intrusión de magma subterráneo y la represurización son los principales impulsores de las recientes erupciones explosivas del Etna.
- Los hallazgos explican el vínculo entre la dinámica del magma profundo y el comportamiento eruptivo de la superficie.
- La erupción de 2002 es una de las más explosivas del Etna en la historia reciente.
Más Videos Relacionados
Videos de Conceptos Relacionados
01:14The Carbon Cycle
Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.
01:19Types of Collisions - II
When two or more objects collide with each other, they can stick together to form one single composite object (after collision). The total mass of the object after the collision is the sum of the masses of the original objects, and it moves with a velocity dictated by the conservation of momentum. Although the system's total momentum remains constant, the kinetic energy decreases, and thus such a collision is an inelastic collision. Most of the collisions between objects in daily life are...
01:09Thermal Stress
If the temperature of an object is changed while it is prevented from expanding or contracting, the object is subjected to stress. The stress is compressive if the object expands in the absence of constraint and tensile if it contracts. This stress resulting from temperature change is known as thermal stress. It can be quite large and can cause damage. To avoid this stress, engineers may design components so they can expand and contract freely. For instance, on highways, gaps are deliberately...
01:24Heat and Free Expansion
The work done by a thermodynamic system depends not only on the initial and final states but also on the intermediate states—that is, on the path. Like work, when heat is added to a thermodynamic system, it undergoes a change of state, and the state attained depends on the path from the initial state to the final state. Consider an ideal gas cylinder fitted with a piston. When the cylinder is heated at a constant temperature, the gas molecules absorb energy and expand slowly in a controlled...
01:15Quarrying of Stone
Quarrying is the process of extracting stone from a quarry, where specialized techniques are employed to remove large blocks of stone safely and efficiently. This process can involve controlled explosions or more precision-oriented methods such as cutting and drilling.
One common method involves using a diamond belt saw to cut large blocks from the quarry face. These blocks can be about 50 feet long and 12 feet high. After the initial vertical cut, drilling is performed at the base of the block.
One common method involves using a diamond belt saw to cut large blocks from the quarry face. These blocks can be about 50 feet long and 12 feet high. After the initial vertical cut, drilling is performed at the base of the block.
01:18Deep Sea Microbial Ecology
The deep ocean and its underlying sediments represent vast, largely unexplored microbial habitats that extend far beyond the sunlit photic zone. The photic (euphotic) zone typically spans the upper ~100–200 meters of pelagic waters in the open ocean, but its depth varies geographically and seasonally, where sufficient light supports photosynthetic life. Below this lies the deep sea, spanning roughly 1000–6000 meters (bathypelagic to abyssal zones), with deeper hadal trenches extending beyond...