H2020Индивидуална стипендия2019–2021

GEOMED · Geodynamics of the Central Mediterranean: A multidisciplinary investigation of the Sicily Channel region

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2019-09-01 → 2021-08-31
Финансиране от ЕС: 183 473 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Геодинамиката на Централния Средиземноморски регион, конкретно в района на Калабрийската дъга и Сицилийския канал, се анализира чрез сеизмични данни и моделиране. По-доброто разбиране на тези тектонични процеси помага за намаляване на рисковете от земетресения, цунами и вулканични изригвания.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Geodynamics of the Central Mediterranean: A multidisciplinary investigation of the Sicily Channel region

This project aims to understand the evolution of plate margins when multiple tectonic processes (e.g., plate convergence, subduction, and backarc extension) interact within a small area (e.g., the Calabrian arc in the Central Mediterranean). These margins are prone to catastrophic earthquakes, tsunami, and volcanic eruptions, which are all linked to long-term dynamic tectonic processes. Various models explain the evolution of these plate margins, however, they lack detail on the extension and rifting that takes place along the arcs. The earthquakes in these areas have a strong dependence on their location along the arc, and hence in any effort aimed at mitigating seismic risk, it is crucial to have a complete understanding of how plate tectonics work when multiple tectonic processes act. GEOMED is a multidisciplinary geophysical and geodynamic investigation of seismic data with additional physical constraints and analogue modelling to improve our understanding of this important aspect of plate tectonics. This is accomplished by studying the Calabrian Arc, with special attention to the Sicily Channel Rift Zone (SCRZ). Through GEOMED, the extent of the shallow extension across the Tyrrhenian Sea and the Sicily Channel is mapped in high resolution. Beneath the SCRZ, the lithosphere is thin and underlain by a low shear velocity zone, and the asthenosphere is characterised by strong negative radial anisotropy. The low shear velocities, which are a proxy for high temperatures, and the radial anisotropy indicate vertical flow in the mantle. The results advocate for an active upwelling and rifting process. It is also discovered that the SCRZ has far higher seismicity than previously thought and that the activity of the marine faults extends farther towards the southeast. Unlike previous believe, there is no evidence of deep earthquakes in this region. The study contributes to the mitigation of seismic risk by improving the seismic hazard assessment of the countries affected in the region. Some of these places are highly inhabited areas, home to millions of citizens, a destination for millions of tourists, and have strong commercial activity offshore.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

The objective of this research proposal is to understand the evolution of plate margins when multiple tectonic processes (e.g. plate convergence, subduction, and backarc extension) interact within a small area (e.g. the Calabrian arc in the Central Mediterranean). These margins are prone to catastrophic earthquakes, tsunami and volcanic eruptions, and are all linked to long-term dynamic tectonic processes. Various models explain the evolution of these plate margins, however, lack detail on the extension and rifting that takes place along the arcs. The earthquakes in these areas have a strong dependence on their location along the arc, and hence in any effort aimed at mitigating seismic risk, it is crucial to have a complete understanding of how plate tectonics work when multiple tectonic processes act.We propose a multidisciplinary geophysical and geodynamic investigation of seismic data with additional physical constraints and analogue modelling to improve our understanding on this important aspect of plate tectonics. This will be accomplished by studying the Calabrian Arc, with a special attention on the Sicily Channel Rift Zone. We will incorporate the results into a regional analogue model to understand the nature and role of these processes, which can then be exported for studying other regions. This will allow us to characterise the evolution of plate margins along backarc systems in unprecedented detail, and to investigate the link between plate convergence, subduction, and backarc extension with the tectonics along and at the front of the arc, thus providing a new insight on the evolution of our planet.The study will ultimately contribute to the mitigation of seismic risk by improving the seismic hazard assessment of the countries affected. Some of these places are highly inhabited areas, home to millions of citizens, a destination to millions of tourists, and have strong commercial activity off shore.

Оригинален текст от CORDIS (на английски).

Участници

UNIVERSITA DEGLI STUDI ROMA TRE · ROMAКоординаторИталия